134 files changed, 6922 insertions, 1930 deletions

diff --git a/drivers/base/topology.c b/drivers/base/topology.c
index bf6b13206d00..9fc630ce1ddb 100644
--- a/drivers/base/topology.c
+++ b/drivers/base/topology.c
@@ -162,7 +162,7 @@ static int __cpuinit topology_cpu_callback(struct notifier_block *nfb,
                 topology_remove_dev(cpu);
                 break;
         }
-        return rc ? NOTIFY_BAD : NOTIFY_OK;
+        return notifier_from_errno(rc);
 }
 
 static int __cpuinit topology_sysfs_init(void)
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index e21175be25d0..f09fc0e2062d 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -1121,5 +1121,12 @@ config DEVPORT
 
 source "drivers/s390/char/Kconfig"
 
+config RAMOOPS
+        tristate "Log panic/oops to a RAM buffer"
+        default n
+        help
+          This enables panic and oops messages to be logged to a circular
+          buffer in RAM where it can be read back at some later point.
+
 endmenu
 
diff --git a/drivers/char/Makefile b/drivers/char/Makefile
index d39be4cf1f5d..88d6eac69754 100644
--- a/drivers/char/Makefile
+++ b/drivers/char/Makefile
@@ -108,6 +108,7 @@ obj-$(CONFIG_HANGCHECK_TIMER)	+= hangcheck-timer.o
 obj-$(CONFIG_TCG_TPM)           += tpm/
 
 obj-$(CONFIG_PS3_FLASH)         += ps3flash.o
+obj-$(CONFIG_RAMOOPS)           += ramoops.o
 
 obj-$(CONFIG_JS_RTC)            += js-rtc.o
 js-rtc-y = rtc.o
diff --git a/drivers/char/amiserial.c b/drivers/char/amiserial.c
index 56b27671adc4..4f8d60c25a98 100644
--- a/drivers/char/amiserial.c
+++ b/drivers/char/amiserial.c
@@ -84,6 +84,7 @@ static char *serial_version = "4.30";
 #include <linux/smp_lock.h>
 #include <linux/init.h>
 #include <linux/bitops.h>
+#include <linux/platform_device.h>
 
 #include <asm/setup.h>
 
@@ -1954,29 +1955,16 @@ static const struct tty_operations serial_ops = {
 /*
  * The serial driver boot-time initialization code!
  */
-static int __init rs_init(void)
+static int __init amiga_serial_probe(struct platform_device *pdev)
 {
         unsigned long flags;
         struct serial_state * state;
         int error;
 
-        if (!MACH_IS_AMIGA || !AMIGAHW_PRESENT(AMI_SERIAL))
-                return -ENODEV;
-
         serial_driver = alloc_tty_driver(1);
         if (!serial_driver)
                 return -ENOMEM;
 
-        /*
-         *  We request SERDAT and SERPER only, because the serial registers are
-         *  too spreaded over the custom register space
-         */
-        if (!request_mem_region(CUSTOM_PHYSADDR+0x30, 4,
-                                "amiserial [Paula]")) {
-                error = -EBUSY;
-                goto fail_put_tty_driver;
-        }
-
         IRQ_ports = NULL;
 
         show_serial_version();
@@ -1998,7 +1986,7 @@ static int __init rs_init(void)
 
         error = tty_register_driver(serial_driver);
         if (error)
-                goto fail_release_mem_region;
+                goto fail_put_tty_driver;
 
         state = rs_table;
         state->magic = SSTATE_MAGIC;
@@ -2050,23 +2038,24 @@ static int __init rs_init(void)
         ciab.ddra |= (SER_DTR | SER_RTS);   /* outputs */
         ciab.ddra &= ~(SER_DCD | SER_CTS | SER_DSR);  /* inputs */
 
+        platform_set_drvdata(pdev, state);
+
         return 0;
 
 fail_free_irq:
         free_irq(IRQ_AMIGA_TBE, state);
 fail_unregister:
         tty_unregister_driver(serial_driver);
-fail_release_mem_region:
-        release_mem_region(CUSTOM_PHYSADDR+0x30, 4);
 fail_put_tty_driver:
         put_tty_driver(serial_driver);
         return error;
 }
 
-static __exit void rs_exit(void) 
+static int __exit amiga_serial_remove(struct platform_device *pdev)
 {
         int error;
-        struct async_struct *info = rs_table[0].info;
+        struct serial_state *state = platform_get_drvdata(pdev);
+        struct async_struct *info = state->info;
 
         /* printk("Unloading %s: version %s\n", serial_name, serial_version); */
         tasklet_kill(&info->tlet);
@@ -2075,19 +2064,38 @@ static __exit void rs_exit(void)
                        error);
         put_tty_driver(serial_driver);
 
-        if (info) {
-          rs_table[0].info = NULL;
-          kfree(info);
-        }
+        rs_table[0].info = NULL;
+        kfree(info);
 
         free_irq(IRQ_AMIGA_TBE, rs_table);
         free_irq(IRQ_AMIGA_RBF, rs_table);
 
-        release_mem_region(CUSTOM_PHYSADDR+0x30, 4);
+        platform_set_drvdata(pdev, NULL);
+
+        return error;
+}
+
+static struct platform_driver amiga_serial_driver = {
+        .remove = __exit_p(amiga_serial_remove),
+        .driver   = {
+                .name   = "amiga-serial",
+                .owner  = THIS_MODULE,
+        },
+};
+
+static int __init amiga_serial_init(void)
+{
+        return platform_driver_probe(&amiga_serial_driver, amiga_serial_probe);
+}
+
+module_init(amiga_serial_init);
+
+static void __exit amiga_serial_exit(void)
+{
+        platform_driver_unregister(&amiga_serial_driver);
 }
 
-module_init(rs_init)
-module_exit(rs_exit)
+module_exit(amiga_serial_exit);
 
 
 #if defined(CONFIG_SERIAL_CONSOLE) && !defined(MODULE)
@@ -2154,3 +2162,4 @@ console_initcall(amiserial_console_init);
 #endif /* CONFIG_SERIAL_CONSOLE && !MODULE */
 
 MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:amiga-serial");
diff --git a/drivers/char/applicom.c b/drivers/char/applicom.c
index 63313a33ba5f..f4ae0e0fb631 100644
--- a/drivers/char/applicom.c
+++ b/drivers/char/applicom.c
@@ -703,14 +703,9 @@ static long ac_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
         /* In general, the device is only openable by root anyway, so we're not
            particularly concerned that bogus ioctls can flood the console. */
 
-        adgl = kmalloc(sizeof(struct st_ram_io), GFP_KERNEL);
-        if (!adgl)
-                return -ENOMEM;
-
-        if (copy_from_user(adgl, argp, sizeof(struct st_ram_io))) {
-                kfree(adgl);
-                return -EFAULT;
-        }
+        adgl = memdup_user(argp, sizeof(struct st_ram_io));
+        if (IS_ERR(adgl))
+                return PTR_ERR(adgl);
 
         lock_kernel();  
         IndexCard = adgl->num_card-1;
diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
index c6ad4234378d..4f3f8c9ec262 100644
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -2505,12 +2505,11 @@ static int ipmi_bmc_register(ipmi_smi_t intf, int ifnum,
                         return rv;
                 }
 
-                printk(KERN_INFO
-                       "ipmi: Found new BMC (man_id: 0x%6.6x, "
-                       " prod_id: 0x%4.4x, dev_id: 0x%2.2x)\n",
-                       bmc->id.manufacturer_id,
-                       bmc->id.product_id,
-                       bmc->id.device_id);
+                dev_info(intf->si_dev, "Found new BMC (man_id: 0x%6.6x, "
+                         "prod_id: 0x%4.4x, dev_id: 0x%2.2x)\n",
+                         bmc->id.manufacturer_id,
+                         bmc->id.product_id,
+                         bmc->id.device_id);
         }
 
         /*
@@ -4037,8 +4036,8 @@ static void ipmi_request_event(void)
 
 static struct timer_list ipmi_timer;
 
-/* Call every ~100 ms. */
-#define IPMI_TIMEOUT_TIME       100
+/* Call every ~1000 ms. */
+#define IPMI_TIMEOUT_TIME       1000
 
 /* How many jiffies does it take to get to the timeout time. */
 #define IPMI_TIMEOUT_JIFFIES    ((IPMI_TIMEOUT_TIME * HZ) / 1000)
diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index 47ffe4a90a95..35603dd4e6c5 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -107,6 +107,14 @@ enum si_type {
 };
 static char *si_to_str[] = { "kcs", "smic", "bt" };
 
+enum ipmi_addr_src {
+        SI_INVALID = 0, SI_HOTMOD, SI_HARDCODED, SI_SPMI, SI_ACPI, SI_SMBIOS,
+        SI_PCI, SI_DEVICETREE, SI_DEFAULT
+};
+static char *ipmi_addr_src_to_str[] = { NULL, "hotmod", "hardcoded", "SPMI",
+                                        "ACPI", "SMBIOS", "PCI",
+                                        "device-tree", "default" };
+
 #define DEVICE_NAME "ipmi_si"
 
 static struct platform_driver ipmi_driver = {
@@ -188,7 +196,7 @@ struct smi_info {
         int (*irq_setup)(struct smi_info *info);
         void (*irq_cleanup)(struct smi_info *info);
         unsigned int io_size;
-        char *addr_source; /* ACPI, PCI, SMBIOS, hardcode, default. */
+        enum ipmi_addr_src addr_source; /* ACPI, PCI, SMBIOS, hardcode, etc. */
         void (*addr_source_cleanup)(struct smi_info *info);
         void *addr_source_data;
 
@@ -300,6 +308,7 @@ static int num_max_busy_us;
 
 static int unload_when_empty = 1;
 
+static int add_smi(struct smi_info *smi);
 static int try_smi_init(struct smi_info *smi);
 static void cleanup_one_si(struct smi_info *to_clean);
 
@@ -314,9 +323,14 @@ static void deliver_recv_msg(struct smi_info *smi_info,
 {
         /* Deliver the message to the upper layer with the lock
            released. */
-        spin_unlock(&(smi_info->si_lock));
-        ipmi_smi_msg_received(smi_info->intf, msg);
-        spin_lock(&(smi_info->si_lock));
+
+        if (smi_info->run_to_completion) {
+                ipmi_smi_msg_received(smi_info->intf, msg);
+        } else {
+                spin_unlock(&(smi_info->si_lock));
+                ipmi_smi_msg_received(smi_info->intf, msg);
+                spin_lock(&(smi_info->si_lock));
+        }
 }
 
 static void return_hosed_msg(struct smi_info *smi_info, int cCode)
@@ -445,6 +459,9 @@ static inline void disable_si_irq(struct smi_info *smi_info)
         if ((smi_info->irq) && (!smi_info->interrupt_disabled)) {
                 start_disable_irq(smi_info);
                 smi_info->interrupt_disabled = 1;
+                if (!atomic_read(&smi_info->stop_operation))
+                        mod_timer(&smi_info->si_timer,
+                                  jiffies + SI_TIMEOUT_JIFFIES);
         }
 }
 
@@ -576,9 +593,8 @@ static void handle_transaction_done(struct smi_info *smi_info)
                 smi_info->handlers->get_result(smi_info->si_sm, msg, 3);
                 if (msg[2] != 0) {
                         /* Error clearing flags */
-                        printk(KERN_WARNING
-                               "ipmi_si: Error clearing flags: %2.2x\n",
-                               msg[2]);
+                        dev_warn(smi_info->dev,
+                                 "Error clearing flags: %2.2x\n", msg[2]);
                 }
                 if (smi_info->si_state == SI_CLEARING_FLAGS_THEN_SET_IRQ)
                         start_enable_irq(smi_info);
@@ -670,9 +686,8 @@ static void handle_transaction_done(struct smi_info *smi_info)
                 /* We got the flags from the SMI, now handle them. */
                 smi_info->handlers->get_result(smi_info->si_sm, msg, 4);
                 if (msg[2] != 0) {
-                        printk(KERN_WARNING
-                               "ipmi_si: Could not enable interrupts"
-                               ", failed get, using polled mode.\n");
+                        dev_warn(smi_info->dev, "Could not enable interrupts"
+                                 ", failed get, using polled mode.\n");
                         smi_info->si_state = SI_NORMAL;
                 } else {
                         msg[0] = (IPMI_NETFN_APP_REQUEST << 2);
@@ -693,11 +708,11 @@ static void handle_transaction_done(struct smi_info *smi_info)
 
                 /* We got the flags from the SMI, now handle them. */
                 smi_info->handlers->get_result(smi_info->si_sm, msg, 4);
-                if (msg[2] != 0) {
-                        printk(KERN_WARNING
-                               "ipmi_si: Could not enable interrupts"
-                               ", failed set, using polled mode.\n");
-                }
+                if (msg[2] != 0)
+                        dev_warn(smi_info->dev, "Could not enable interrupts"
+                                 ", failed set, using polled mode.\n");
+                else
+                        smi_info->interrupt_disabled = 0;
                 smi_info->si_state = SI_NORMAL;
                 break;
         }
@@ -709,9 +724,8 @@ static void handle_transaction_done(struct smi_info *smi_info)
                 /* We got the flags from the SMI, now handle them. */
                 smi_info->handlers->get_result(smi_info->si_sm, msg, 4);
                 if (msg[2] != 0) {
-                        printk(KERN_WARNING
-                               "ipmi_si: Could not disable interrupts"
-                               ", failed get.\n");
+                        dev_warn(smi_info->dev, "Could not disable interrupts"
+                                 ", failed get.\n");
                         smi_info->si_state = SI_NORMAL;
                 } else {
                         msg[0] = (IPMI_NETFN_APP_REQUEST << 2);
@@ -733,9 +747,8 @@ static void handle_transaction_done(struct smi_info *smi_info)
                 /* We got the flags from the SMI, now handle them. */
                 smi_info->handlers->get_result(smi_info->si_sm, msg, 4);
                 if (msg[2] != 0) {
-                        printk(KERN_WARNING
-                               "ipmi_si: Could not disable interrupts"
-                               ", failed set.\n");
+                        dev_warn(smi_info->dev, "Could not disable interrupts"
+                                 ", failed set.\n");
                 }
                 smi_info->si_state = SI_NORMAL;
                 break;
@@ -877,6 +890,11 @@ static void sender(void                *send_info,
         printk("**Enqueue: %d.%9.9d\n", t.tv_sec, t.tv_usec);
 #endif
 
+        mod_timer(&smi_info->si_timer, jiffies + SI_TIMEOUT_JIFFIES);
+
+        if (smi_info->thread)
+                wake_up_process(smi_info->thread);
+
         if (smi_info->run_to_completion) {
                 /*
                  * If we are running to completion, then throw it in
@@ -997,6 +1015,8 @@ static int ipmi_thread(void *data)
                         ; /* do nothing */
                 else if (smi_result == SI_SM_CALL_WITH_DELAY && busy_wait)
                         schedule();
+                else if (smi_result == SI_SM_IDLE)
+                        schedule_timeout_interruptible(100);
                 else
                         schedule_timeout_interruptible(0);
         }
@@ -1039,6 +1059,7 @@ static void smi_timeout(unsigned long data)
         unsigned long     flags;
         unsigned long     jiffies_now;
         long              time_diff;
+        long              timeout;
 #ifdef DEBUG_TIMING
         struct timeval    t;
 #endif
@@ -1059,9 +1080,9 @@ static void smi_timeout(unsigned long data)
 
         if ((smi_info->irq) && (!smi_info->interrupt_disabled)) {
                 /* Running with interrupts, only do long timeouts. */
-                smi_info->si_timer.expires = jiffies + SI_TIMEOUT_JIFFIES;
+                timeout = jiffies + SI_TIMEOUT_JIFFIES;
                 smi_inc_stat(smi_info, long_timeouts);
-                goto do_add_timer;
+                goto do_mod_timer;
         }
 
         /*
@@ -1070,14 +1091,15 @@ static void smi_timeout(unsigned long data)
          */
         if (smi_result == SI_SM_CALL_WITH_DELAY) {
                 smi_inc_stat(smi_info, short_timeouts);
-                smi_info->si_timer.expires = jiffies + 1;
+                timeout = jiffies + 1;
         } else {
                 smi_inc_stat(smi_info, long_timeouts);
-                smi_info->si_timer.expires = jiffies + SI_TIMEOUT_JIFFIES;
+                timeout = jiffies + SI_TIMEOUT_JIFFIES;
         }
 
- do_add_timer:
-        add_timer(&(smi_info->si_timer));
+ do_mod_timer:
+        if (smi_result != SI_SM_IDLE)
+                mod_timer(&(smi_info->si_timer), timeout);
 }
 
 static irqreturn_t si_irq_handler(int irq, void *data)
@@ -1144,10 +1166,10 @@ static int smi_start_processing(void       *send_info,
                 new_smi->thread = kthread_run(ipmi_thread, new_smi,
                                               "kipmi%d", new_smi->intf_num);
                 if (IS_ERR(new_smi->thread)) {
-                        printk(KERN_NOTICE "ipmi_si_intf: Could not start"
-                               " kernel thread due to error %ld, only using"
-                               " timers to drive the interface\n",
-                               PTR_ERR(new_smi->thread));
+                        dev_notice(new_smi->dev, "Could not start"
+                                   " kernel thread due to error %ld, only using"
+                                   " timers to drive the interface\n",
+                                   PTR_ERR(new_smi->thread));
                         new_smi->thread = NULL;
                 }
         }
@@ -1308,14 +1330,13 @@ static int std_irq_setup(struct smi_info *info)
                                  DEVICE_NAME,
                                  info);
         if (rv) {
-                printk(KERN_WARNING
-                       "ipmi_si: %s unable to claim interrupt %d,"
-                       " running polled\n",
-                       DEVICE_NAME, info->irq);
+                dev_warn(info->dev, "%s unable to claim interrupt %d,"
+                         " running polled\n",
+                         DEVICE_NAME, info->irq);
                 info->irq = 0;
         } else {
                 info->irq_cleanup = std_irq_cleanup;
-                printk("  Using irq %d\n", info->irq);
+                dev_info(info->dev, "Using irq %d\n", info->irq);
         }
 
         return rv;
@@ -1406,8 +1427,8 @@ static int port_setup(struct smi_info *info)
                 info->io.outputb = port_outl;
                 break;
         default:
-                printk(KERN_WARNING "ipmi_si: Invalid register size: %d\n",
-                       info->io.regsize);
+                dev_warn(info->dev, "Invalid register size: %d\n",
+                         info->io.regsize);
                 return -EINVAL;
         }
 
@@ -1529,8 +1550,8 @@ static int mem_setup(struct smi_info *info)
                 break;
 #endif
         default:
-                printk(KERN_WARNING "ipmi_si: Invalid register size: %d\n",
-                       info->io.regsize);
+                dev_warn(info->dev, "Invalid register size: %d\n",
+                         info->io.regsize);
                 return -EINVAL;
         }
 
@@ -1755,7 +1776,7 @@ static int hotmod_handler(const char *val, struct kernel_param *kp)
                                 goto out;
                         }
 
-                        info->addr_source = "hotmod";
+                        info->addr_source = SI_HOTMOD;
                         info->si_type = si_type;
                         info->io.addr_data = addr;
                         info->io.addr_type = addr_space;
@@ -1777,7 +1798,9 @@ static int hotmod_handler(const char *val, struct kernel_param *kp)
                                 info->irq_setup = std_irq_setup;
                         info->slave_addr = ipmb;
 
-                        try_smi_init(info);
+                        if (!add_smi(info))
+                                if (try_smi_init(info))
+                                        cleanup_one_si(info);
                 } else {
                         /* remove */
                         struct smi_info *e, *tmp_e;
@@ -1813,7 +1836,8 @@ static __devinit void hardcode_find_bmc(void)
                 if (!info)
                         return;
 
-                info->addr_source = "hardcoded";
+                info->addr_source = SI_HARDCODED;
+                printk(KERN_INFO PFX "probing via hardcoded address\n");
 
                 if (!si_type[i] || strcmp(si_type[i], "kcs") == 0) {
                         info->si_type = SI_KCS;
@@ -1822,8 +1846,7 @@ static __devinit void hardcode_find_bmc(void)
                 } else if (strcmp(si_type[i], "bt") == 0) {
                         info->si_type = SI_BT;
                 } else {
-                        printk(KERN_WARNING
-                               "ipmi_si: Interface type specified "
+                        printk(KERN_WARNING PFX "Interface type specified "
                                "for interface %d, was invalid: %s\n",
                                i, si_type[i]);
                         kfree(info);
@@ -1841,11 +1864,9 @@ static __devinit void hardcode_find_bmc(void)
                         info->io.addr_data = addrs[i];
                         info->io.addr_type = IPMI_MEM_ADDR_SPACE;
                 } else {
-                        printk(KERN_WARNING
-                               "ipmi_si: Interface type specified "
-                               "for interface %d, "
-                               "but port and address were not set or "
-                               "set to zero.\n", i);
+                        printk(KERN_WARNING PFX "Interface type specified "
+                               "for interface %d, but port and address were "
+                               "not set or set to zero.\n", i);
                         kfree(info);
                         continue;
                 }
@@ -1863,7 +1884,9 @@ static __devinit void hardcode_find_bmc(void)
                         info->irq_setup = std_irq_setup;
                 info->slave_addr = slave_addrs[i];
 
-                try_smi_init(info);
+                if (!add_smi(info))
+                        if (try_smi_init(info))
+                                cleanup_one_si(info);
         }
 }
 
@@ -1923,15 +1946,13 @@ static int acpi_gpe_irq_setup(struct smi_info *info)
                                           &ipmi_acpi_gpe,
                                           info);
         if (status != AE_OK) {
-                printk(KERN_WARNING
-                       "ipmi_si: %s unable to claim ACPI GPE %d,"
-                       " running polled\n",
-                       DEVICE_NAME, info->irq);
+                dev_warn(info->dev, "%s unable to claim ACPI GPE %d,"
+                         " running polled\n", DEVICE_NAME, info->irq);
                 info->irq = 0;
                 return -EINVAL;
         } else {
                 info->irq_cleanup = acpi_gpe_irq_cleanup;
-                printk("  Using ACPI GPE %d\n", info->irq);
+                dev_info(info->dev, "Using ACPI GPE %d\n", info->irq);
                 return 0;
         }
 }
@@ -1989,8 +2010,8 @@ static __devinit int try_init_spmi(struct SPMITable *spmi)
         u8               addr_space;
 
         if (spmi->IPMIlegacy != 1) {
-            printk(KERN_INFO "IPMI: Bad SPMI legacy %d\n", spmi->IPMIlegacy);
-            return -ENODEV;
+                printk(KERN_INFO PFX "Bad SPMI legacy %d\n", spmi->IPMIlegacy);
+                return -ENODEV;
         }
 
         if (spmi->addr.space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY)
@@ -2000,11 +2021,12 @@ static __devinit int try_init_spmi(struct SPMITable *spmi)
 
         info = kzalloc(sizeof(*info), GFP_KERNEL);
         if (!info) {
-                printk(KERN_ERR "ipmi_si: Could not allocate SI data (3)\n");
+                printk(KERN_ERR PFX "Could not allocate SI data (3)\n");
                 return -ENOMEM;
         }
 
-        info->addr_source = "SPMI";
+        info->addr_source = SI_SPMI;
+        printk(KERN_INFO PFX "probing via SPMI\n");
 
         /* Figure out the interface type. */
         switch (spmi->InterfaceType) {
@@ -2018,8 +2040,8 @@ static __devinit int try_init_spmi(struct SPMITable *spmi)
                 info->si_type = SI_BT;
                 break;
         default:
-                printk(KERN_INFO "ipmi_si: Unknown ACPI/SPMI SI type %d\n",
-                        spmi->InterfaceType);
+                printk(KERN_INFO PFX "Unknown ACPI/SPMI SI type %d\n",
+                       spmi->InterfaceType);
                 kfree(info);
                 return -EIO;
         }
@@ -2055,13 +2077,12 @@ static __devinit int try_init_spmi(struct SPMITable *spmi)
                 info->io.addr_type = IPMI_IO_ADDR_SPACE;
         } else {
                 kfree(info);
-                printk(KERN_WARNING
-                       "ipmi_si: Unknown ACPI I/O Address type\n");
+                printk(KERN_WARNING PFX "Unknown ACPI I/O Address type\n");
                 return -EIO;
         }
         info->io.addr_data = spmi->addr.address;
 
-        try_smi_init(info);
+        add_smi(info);
 
         return 0;
 }
@@ -2093,6 +2114,7 @@ static int __devinit ipmi_pnp_probe(struct pnp_dev *dev,
 {
         struct acpi_device *acpi_dev;
         struct smi_info *info;
+        struct resource *res;
         acpi_handle handle;
         acpi_status status;
         unsigned long long tmp;
@@ -2105,7 +2127,8 @@ static int __devinit ipmi_pnp_probe(struct pnp_dev *dev,
         if (!info)
                 return -ENOMEM;
 
-        info->addr_source = "ACPI";
+        info->addr_source = SI_ACPI;
+        printk(KERN_INFO PFX "probing via ACPI\n");
 
         handle = acpi_dev->handle;
 
@@ -2125,22 +2148,26 @@ static int __devinit ipmi_pnp_probe(struct pnp_dev *dev,
                 info->si_type = SI_BT;
                 break;
         default:
-                dev_info(&dev->dev, "unknown interface type %lld\n", tmp);
+                dev_info(&dev->dev, "unknown IPMI type %lld\n", tmp);
                 goto err_free;
         }
 
-        if (pnp_port_valid(dev, 0)) {
+        res = pnp_get_resource(dev, IORESOURCE_IO, 0);
+        if (res) {
                 info->io_setup = port_setup;
                 info->io.addr_type = IPMI_IO_ADDR_SPACE;
-                info->io.addr_data = pnp_port_start(dev, 0);
-        } else if (pnp_mem_valid(dev, 0)) {
-                info->io_setup = mem_setup;
-                info->io.addr_type = IPMI_MEM_ADDR_SPACE;
-                info->io.addr_data = pnp_mem_start(dev, 0);
         } else {
+                res = pnp_get_resource(dev, IORESOURCE_MEM, 0);
+                if (res) {
+                        info->io_setup = mem_setup;
+                        info->io.addr_type = IPMI_MEM_ADDR_SPACE;
+                }
+        }
+        if (!res) {
                 dev_err(&dev->dev, "no I/O or memory address\n");
                 goto err_free;
         }
+        info->io.addr_data = res->start;
 
         info->io.regspacing = DEFAULT_REGSPACING;
         info->io.regsize = DEFAULT_REGSPACING;
@@ -2156,10 +2183,14 @@ static int __devinit ipmi_pnp_probe(struct pnp_dev *dev,
                 info->irq_setup = std_irq_setup;
         }
 
-        info->dev = &acpi_dev->dev;
+        info->dev = &dev->dev;
         pnp_set_drvdata(dev, info);
 
-        return try_smi_init(info);
+        dev_info(info->dev, "%pR regsize %d spacing %d irq %d\n",
+                 res, info->io.regsize, info->io.regspacing,
+                 info->irq);
+
+        return add_smi(info);
 
 err_free:
         kfree(info);
@@ -2264,12 +2295,12 @@ static __devinit void try_init_dmi(struct dmi_ipmi_data *ipmi_data)
 
         info = kzalloc(sizeof(*info), GFP_KERNEL);
         if (!info) {
-                printk(KERN_ERR
-                       "ipmi_si: Could not allocate SI data\n");
+                printk(KERN_ERR PFX "Could not allocate SI data\n");
                 return;
         }
 
-        info->addr_source = "SMBIOS";
+        info->addr_source = SI_SMBIOS;
+        printk(KERN_INFO PFX "probing via SMBIOS\n");
 
         switch (ipmi_data->type) {
         case 0x01: /* KCS */
@@ -2299,8 +2330,7 @@ static __devinit void try_init_dmi(struct dmi_ipmi_data *ipmi_data)
 
         default:
                 kfree(info);
-                printk(KERN_WARNING
-                       "ipmi_si: Unknown SMBIOS I/O Address type: %d.\n",
+                printk(KERN_WARNING PFX "Unknown SMBIOS I/O Address type: %d\n",
                        ipmi_data->addr_space);
                 return;
         }
@@ -2318,7 +2348,7 @@ static __devinit void try_init_dmi(struct dmi_ipmi_data *ipmi_data)
         if (info->irq)
                 info->irq_setup = std_irq_setup;
 
-        try_smi_init(info);
+        add_smi(info);
 }
 
 static void __devinit dmi_find_bmc(void)
@@ -2368,7 +2398,8 @@ static int __devinit ipmi_pci_probe(struct pci_dev *pdev,
         if (!info)
                 return -ENOMEM;
 
-        info->addr_source = "PCI";
+        info->addr_source = SI_PCI;
+        dev_info(&pdev->dev, "probing via PCI");
 
         switch (class_type) {
         case PCI_ERMC_CLASSCODE_TYPE_SMIC:
@@ -2385,15 +2416,13 @@ static int __devinit ipmi_pci_probe(struct pci_dev *pdev,
 
         default:
                 kfree(info);
-                printk(KERN_INFO "ipmi_si: %s: Unknown IPMI type: %d\n",
-                       pci_name(pdev), class_type);
+                dev_info(&pdev->dev, "Unknown IPMI type: %d\n", class_type);
                 return -ENOMEM;
         }
 
         rv = pci_enable_device(pdev);
         if (rv) {
-                printk(KERN_ERR "ipmi_si: %s: couldn't enable PCI device\n",
-                       pci_name(pdev));
+                dev_err(&pdev->dev, "couldn't enable PCI device\n");
                 kfree(info);
                 return rv;
         }
@@ -2421,7 +2450,11 @@ static int __devinit ipmi_pci_probe(struct pci_dev *pdev,
         info->dev = &pdev->dev;
         pci_set_drvdata(pdev, info);
 
-        return try_smi_init(info);
+        dev_info(&pdev->dev, "%pR regsize %d spacing %d irq %d\n",
+                &pdev->resource[0], info->io.regsize, info->io.regspacing,
+                info->irq);
+
+        return add_smi(info);
 }
 
 static void __devexit ipmi_pci_remove(struct pci_dev *pdev)
@@ -2473,7 +2506,7 @@ static int __devinit ipmi_of_probe(struct of_device *dev,
         int ret;
         int proplen;
 
-        dev_info(&dev->dev, PFX "probing via device tree\n");
+        dev_info(&dev->dev, "probing via device tree\n");
 
         ret = of_address_to_resource(np, 0, &resource);
         if (ret) {
@@ -2503,12 +2536,12 @@ static int __devinit ipmi_of_probe(struct of_device *dev,
 
         if (!info) {
                 dev_err(&dev->dev,
-                        PFX "could not allocate memory for OF probe\n");
+                        "could not allocate memory for OF probe\n");
                 return -ENOMEM;
         }
 
         info->si_type           = (enum si_type) match->data;
-        info->addr_source       = "device-tree";
+        info->addr_source       = SI_DEVICETREE;
         info->irq_setup         = std_irq_setup;
 
         if (resource.flags & IORESOURCE_IO) {
@@ -2528,13 +2561,13 @@ static int __devinit ipmi_of_probe(struct of_device *dev,
         info->irq               = irq_of_parse_and_map(dev->dev.of_node, 0);
         info->dev               = &dev->dev;
 
-        dev_dbg(&dev->dev, "addr 0x%lx regsize %d spacing %d irq %x\n",
+        dev_dbg(&dev->dev, "addr 0x%lx regsize %d spacing %d irq %d\n",
                 info->io.addr_data, info->io.regsize, info->io.regspacing,
                 info->irq);
 
         dev_set_drvdata(&dev->dev, info);
 
-        return try_smi_init(info);
+        return add_smi(info);
 }
 
 static int __devexit ipmi_of_remove(struct of_device *dev)
@@ -2643,9 +2676,8 @@ static int try_enable_event_buffer(struct smi_info *smi_info)
 
         rv = wait_for_msg_done(smi_info);
         if (rv) {
-                printk(KERN_WARNING
-                       "ipmi_si: Error getting response from get global,"
-                       " enables command, the event buffer is not"
+                printk(KERN_WARNING PFX "Error getting response from get"
+                       " global enables command, the event buffer is not"
                        " enabled.\n");
                 goto out;
         }
@@ -2657,10 +2689,8 @@ static int try_enable_event_buffer(struct smi_info *smi_info)
                         resp[0] != (IPMI_NETFN_APP_REQUEST | 1) << 2 ||
                         resp[1] != IPMI_GET_BMC_GLOBAL_ENABLES_CMD   ||
                         resp[2] != 0) {
-                printk(KERN_WARNING
-                       "ipmi_si: Invalid return from get global"
-                       " enables command, cannot enable the event"
-                       " buffer.\n");
+                printk(KERN_WARNING PFX "Invalid return from get global"
+                       " enables command, cannot enable the event buffer.\n");
                 rv = -EINVAL;
                 goto out;
         }
@@ -2676,9 +2706,8 @@ static int try_enable_event_buffer(struct smi_info *smi_info)
 
         rv = wait_for_msg_done(smi_info);
         if (rv) {
-                printk(KERN_WARNING
-                       "ipmi_si: Error getting response from set global,"
-                       " enables command, the event buffer is not"
+                printk(KERN_WARNING PFX "Error getting response from set"
+                       " global, enables command, the event buffer is not"
                        " enabled.\n");
                 goto out;
         }
@@ -2689,10 +2718,8 @@ static int try_enable_event_buffer(struct smi_info *smi_info)
         if (resp_len < 3 ||
                         resp[0] != (IPMI_NETFN_APP_REQUEST | 1) << 2 ||
                         resp[1] != IPMI_SET_BMC_GLOBAL_ENABLES_CMD) {
-                printk(KERN_WARNING
-                       "ipmi_si: Invalid return from get global,"
-                       "enables command, not enable the event"
-                       " buffer.\n");
+                printk(KERN_WARNING PFX "Invalid return from get global,"
+                       "enables command, not enable the event buffer.\n");
                 rv = -EINVAL;
                 goto out;
         }
@@ -2951,7 +2978,7 @@ static __devinit void default_find_bmc(void)
                 if (!info)
                         return;
 
-                info->addr_source = NULL;
+                info->addr_source = SI_DEFAULT;
 
                 info->si_type = ipmi_defaults[i].type;
                 info->io_setup = port_setup;
@@ -2963,14 +2990,16 @@ static __devinit void default_find_bmc(void)
                 info->io.regsize = DEFAULT_REGSPACING;
                 info->io.regshift = 0;
 
-                if (try_smi_init(info) == 0) {
-                        /* Found one... */
-                        printk(KERN_INFO "ipmi_si: Found default %s state"
-                               " machine at %s address 0x%lx\n",
-                               si_to_str[info->si_type],
-                               addr_space_to_str[info->io.addr_type],
-                               info->io.addr_data);
-                        return;
+                if (add_smi(info) == 0) {
+                        if ((try_smi_init(info)) == 0) {
+                                /* Found one... */
+                                printk(KERN_INFO PFX "Found default %s"
+                                " state machine at %s address 0x%lx\n",
+                                si_to_str[info->si_type],
+                                addr_space_to_str[info->io.addr_type],
+                                info->io.addr_data);
+                        } else
+                                cleanup_one_si(info);
                 }
         }
 }
@@ -2989,34 +3018,48 @@ static int is_new_interface(struct smi_info *info)
         return 1;
 }
 
-static int try_smi_init(struct smi_info *new_smi)
+static int add_smi(struct smi_info *new_smi)
 {
-        int rv;
-        int i;
-
-        if (new_smi->addr_source) {
-                printk(KERN_INFO "ipmi_si: Trying %s-specified %s state"
-                       " machine at %s address 0x%lx, slave address 0x%x,"
-                       " irq %d\n",
-                       new_smi->addr_source,
-                       si_to_str[new_smi->si_type],
-                       addr_space_to_str[new_smi->io.addr_type],
-                       new_smi->io.addr_data,
-                       new_smi->slave_addr, new_smi->irq);
-        }
+        int rv = 0;
 
+        printk(KERN_INFO PFX "Adding %s-specified %s state machine",
+                        ipmi_addr_src_to_str[new_smi->addr_source],
+                        si_to_str[new_smi->si_type]);
         mutex_lock(&smi_infos_lock);
         if (!is_new_interface(new_smi)) {
-                printk(KERN_WARNING "ipmi_si: duplicate interface\n");
+                printk(KERN_CONT PFX "duplicate interface\n");
                 rv = -EBUSY;
                 goto out_err;
         }
 
+        printk(KERN_CONT "\n");
+
         /* So we know not to free it unless we have allocated one. */
         new_smi->intf = NULL;
         new_smi->si_sm = NULL;
         new_smi->handlers = NULL;
 
+        list_add_tail(&new_smi->link, &smi_infos);
+
+out_err:
+        mutex_unlock(&smi_infos_lock);
+        return rv;
+}
+
+static int try_smi_init(struct smi_info *new_smi)
+{
+        int rv = 0;
+        int i;
+
+        printk(KERN_INFO PFX "Trying %s-specified %s state"
+               " machine at %s address 0x%lx, slave address 0x%x,"
+               " irq %d\n",
+               ipmi_addr_src_to_str[new_smi->addr_source],
+               si_to_str[new_smi->si_type],
+               addr_space_to_str[new_smi->io.addr_type],
+               new_smi->io.addr_data,
+               new_smi->slave_addr, new_smi->irq);
+
         switch (new_smi->si_type) {
         case SI_KCS:
                 new_smi->handlers = &kcs_smi_handlers;
@@ -3039,7 +3082,8 @@ static int try_smi_init(struct smi_info *new_smi)
         /* Allocate the state machine's data and initialize it. */
         new_smi->si_sm = kmalloc(new_smi->handlers->size(), GFP_KERNEL);
         if (!new_smi->si_sm) {
-                printk(KERN_ERR "Could not allocate state machine memory\n");
+                printk(KERN_ERR PFX
+                       "Could not allocate state machine memory\n");
                 rv = -ENOMEM;
                 goto out_err;
         }
@@ -3049,7 +3093,7 @@ static int try_smi_init(struct smi_info *new_smi)
         /* Now that we know the I/O size, we can set up the I/O. */
         rv = new_smi->io_setup(new_smi);
         if (rv) {
-                printk(KERN_ERR "Could not set up I/O space\n");
+                printk(KERN_ERR PFX "Could not set up I/O space\n");
                 goto out_err;
         }
 
@@ -3059,8 +3103,7 @@ static int try_smi_init(struct smi_info *new_smi)
         /* Do low-level detection first. */
         if (new_smi->handlers->detect(new_smi->si_sm)) {
                 if (new_smi->addr_source)
-                        printk(KERN_INFO "ipmi_si: Interface detection"
-                               " failed\n");
+                        printk(KERN_INFO PFX "Interface detection failed\n");
                 rv = -ENODEV;
                 goto out_err;
         }
@@ -3072,7 +3115,7 @@ static int try_smi_init(struct smi_info *new_smi)
         rv = try_get_dev_id(new_smi);
         if (rv) {
                 if (new_smi->addr_source)
-                        printk(KERN_INFO "ipmi_si: There appears to be no BMC"
+                        printk(KERN_INFO PFX "There appears to be no BMC"
                                " at this location\n");
                 goto out_err;
         }
@@ -3088,7 +3131,7 @@ static int try_smi_init(struct smi_info *new_smi)
         for (i = 0; i < SI_NUM_STATS; i++)
                 atomic_set(&new_smi->stats[i], 0);
 
-        new_smi->interrupt_disabled = 0;
+        new_smi->interrupt_disabled = 1;
         atomic_set(&new_smi->stop_operation, 0);
         new_smi->intf_num = smi_num;
         smi_num++;
@@ -3114,9 +3157,8 @@ static int try_smi_init(struct smi_info *new_smi)
                 new_smi->pdev = platform_device_alloc("ipmi_si",
                                                       new_smi->intf_num);
                 if (!new_smi->pdev) {
-                        printk(KERN_ERR
-                               "ipmi_si_intf:"
-                               " Unable to allocate platform device\n");
+                        printk(KERN_ERR PFX
+                               "Unable to allocate platform device\n");
                         goto out_err;
                 }
                 new_smi->dev = &new_smi->pdev->dev;
@@ -3124,9 +3166,8 @@ static int try_smi_init(struct smi_info *new_smi)
 
                 rv = platform_device_add(new_smi->pdev);
                 if (rv) {
-                        printk(KERN_ERR
-                               "ipmi_si_intf:"
-                               " Unable to register system interface device:"
+                        printk(KERN_ERR PFX
+                               "Unable to register system interface device:"
                                " %d\n",
                                rv);
                         goto out_err;
@@ -3141,9 +3182,8 @@ static int try_smi_init(struct smi_info *new_smi)
                                "bmc",
                                new_smi->slave_addr);
         if (rv) {
-                printk(KERN_ERR
-                       "ipmi_si: Unable to register device: error %d\n",
-                       rv);
+                dev_err(new_smi->dev, "Unable to register device: error %d\n",
+                        rv);
                 goto out_err_stop_timer;
         }
 
@@ -3151,9 +3191,7 @@ static int try_smi_init(struct smi_info *new_smi)
                                      type_file_read_proc,
                                      new_smi);
         if (rv) {
-                printk(KERN_ERR
-                       "ipmi_si: Unable to create proc entry: %d\n",
-                       rv);
+                dev_err(new_smi->dev, "Unable to create proc entry: %d\n", rv);
                 goto out_err_stop_timer;
         }
 
@@ -3161,9 +3199,7 @@ static int try_smi_init(struct smi_info *new_smi)
                                      stat_file_read_proc,
                                      new_smi);
         if (rv) {
-                printk(KERN_ERR
-                       "ipmi_si: Unable to create proc entry: %d\n",
-                       rv);
+                dev_err(new_smi->dev, "Unable to create proc entry: %d\n", rv);
                 goto out_err_stop_timer;
         }
 
@@ -3171,18 +3207,12 @@ static int try_smi_init(struct smi_info *new_smi)
                                      param_read_proc,
                                      new_smi);
         if (rv) {
-                printk(KERN_ERR
-                       "ipmi_si: Unable to create proc entry: %d\n",
-                       rv);
+                dev_err(new_smi->dev, "Unable to create proc entry: %d\n", rv);
                 goto out_err_stop_timer;
         }
 
-        list_add_tail(&new_smi->link, &smi_infos);
-
-        mutex_unlock(&smi_infos_lock);
-
-        printk(KERN_INFO "IPMI %s interface initialized\n",
-               si_to_str[new_smi->si_type]);
+        dev_info(new_smi->dev, "IPMI %s interface initialized\n",
+                 si_to_str[new_smi->si_type]);
 
         return 0;
 
@@ -3191,11 +3221,17 @@ static int try_smi_init(struct smi_info *new_smi)
         wait_for_timer_and_thread(new_smi);
 
  out_err:
-        if (new_smi->intf)
+        new_smi->interrupt_disabled = 1;
+
+        if (new_smi->intf) {
                 ipmi_unregister_smi(new_smi->intf);
+                new_smi->intf = NULL;
+        }
 
-        if (new_smi->irq_cleanup)
+        if (new_smi->irq_cleanup) {
                 new_smi->irq_cleanup(new_smi);
+                new_smi->irq_cleanup = NULL;
+        }
 
         /*
          * Wait until we know that we are out of any interrupt
@@ -3208,18 +3244,21 @@ static int try_smi_init(struct smi_info *new_smi)
                 if (new_smi->handlers)
                         new_smi->handlers->cleanup(new_smi->si_sm);
                 kfree(new_smi->si_sm);
+                new_smi->si_sm = NULL;
         }
-        if (new_smi->addr_source_cleanup)
+        if (new_smi->addr_source_cleanup) {
                 new_smi->addr_source_cleanup(new_smi);
-        if (new_smi->io_cleanup)
+                new_smi->addr_source_cleanup = NULL;
+        }
+        if (new_smi->io_cleanup) {
                 new_smi->io_cleanup(new_smi);
+                new_smi->io_cleanup = NULL;
+        }
 
-        if (new_smi->dev_registered)
+        if (new_smi->dev_registered) {
                 platform_device_unregister(new_smi->pdev);
-
-        kfree(new_smi);
-
-        mutex_unlock(&smi_infos_lock);
+                new_smi->dev_registered = 0;
+        }
 
         return rv;
 }
@@ -3229,6 +3268,8 @@ static __devinit int init_ipmi_si(void)
         int  i;
         char *str;
         int  rv;
+        struct smi_info *e;
+        enum ipmi_addr_src type = SI_INVALID;
 
         if (initialized)
                 return 0;
@@ -3237,9 +3278,7 @@ static __devinit int init_ipmi_si(void)
         /* Register the device drivers. */
         rv = driver_register(&ipmi_driver.driver);
         if (rv) {
-                printk(KERN_ERR
-                       "init_ipmi_si: Unable to register driver: %d\n",
-                       rv);
+                printk(KERN_ERR PFX "Unable to register driver: %d\n", rv);
                 return rv;
         }
 
@@ -3263,38 +3302,81 @@ static __devinit int init_ipmi_si(void)
 
         hardcode_find_bmc();
 
-#ifdef CONFIG_DMI
-        dmi_find_bmc();
-#endif
+        /* If the user gave us a device, they presumably want us to use it */
+        mutex_lock(&smi_infos_lock);
+        if (!list_empty(&smi_infos)) {
+                mutex_unlock(&smi_infos_lock);
+                return 0;
+        }
+        mutex_unlock(&smi_infos_lock);
 
-#ifdef CONFIG_ACPI
-        spmi_find_bmc();
+#ifdef CONFIG_PCI
+        rv = pci_register_driver(&ipmi_pci_driver);
+        if (rv)
+                printk(KERN_ERR PFX "Unable to register PCI driver: %d\n", rv);
 #endif
+
 #ifdef CONFIG_ACPI
         pnp_register_driver(&ipmi_pnp_driver);
 #endif
 
-#ifdef CONFIG_PCI
-        rv = pci_register_driver(&ipmi_pci_driver);
-        if (rv)
-                printk(KERN_ERR
-                       "init_ipmi_si: Unable to register PCI driver: %d\n",
-                       rv);
+#ifdef CONFIG_DMI
+        dmi_find_bmc();
+#endif
+
+#ifdef CONFIG_ACPI
+        spmi_find_bmc();
 #endif
 
 #ifdef CONFIG_PPC_OF
         of_register_platform_driver(&ipmi_of_platform_driver);
 #endif
 
+        /* We prefer devices with interrupts, but in the case of a machine
+           with multiple BMCs we assume that there will be several instances
+           of a given type so if we succeed in registering a type then also
+           try to register everything else of the same type */
+
+        mutex_lock(&smi_infos_lock);
+        list_for_each_entry(e, &smi_infos, link) {
+                /* Try to register a device if it has an IRQ and we either
+                   haven't successfully registered a device yet or this
+                   device has the same type as one we successfully registered */
+                if (e->irq && (!type || e->addr_source == type)) {
+                        if (!try_smi_init(e)) {
+                                type = e->addr_source;
+                        }
+                }
+        }
+
+        /* type will only have been set if we successfully registered an si */
+        if (type) {
+                mutex_unlock(&smi_infos_lock);
+                return 0;
+        }
+
+        /* Fall back to the preferred device */
+
+        list_for_each_entry(e, &smi_infos, link) {
+                if (!e->irq && (!type || e->addr_source == type)) {
+                        if (!try_smi_init(e)) {
+                                type = e->addr_source;
+                        }
+                }
+        }
+        mutex_unlock(&smi_infos_lock);
+
+        if (type)
+                return 0;
+
         if (si_trydefaults) {
                 mutex_lock(&smi_infos_lock);
                 if (list_empty(&smi_infos)) {
                         /* No BMC was found, try defaults. */
                         mutex_unlock(&smi_infos_lock);
                         default_find_bmc();
-                } else {
+                } else
                         mutex_unlock(&smi_infos_lock);
-                }
         }
 
         mutex_lock(&smi_infos_lock);
@@ -3308,8 +3390,8 @@ static __devinit int init_ipmi_si(void)
                 of_unregister_platform_driver(&ipmi_of_platform_driver);
 #endif
                 driver_unregister(&ipmi_driver.driver);
-                printk(KERN_WARNING
-                       "ipmi_si: Unable to find any System Interface(s)\n");
+                printk(KERN_WARNING PFX
+                       "Unable to find any System Interface(s)\n");
                 return -ENODEV;
         } else {
                 mutex_unlock(&smi_infos_lock);
@@ -3320,7 +3402,7 @@ module_init(init_ipmi_si);
 
 static void cleanup_one_si(struct smi_info *to_clean)
 {
-        int           rv;
+        int           rv = 0;
         unsigned long flags;
 
         if (!to_clean)
@@ -3364,14 +3446,16 @@ static void cleanup_one_si(struct smi_info *to_clean)
                 schedule_timeout_uninterruptible(1);
         }
 
-        rv = ipmi_unregister_smi(to_clean->intf);
+        if (to_clean->intf)
+                rv = ipmi_unregister_smi(to_clean->intf);
+
         if (rv) {
-                printk(KERN_ERR
-                       "ipmi_si: Unable to unregister device: errno=%d\n",
+                printk(KERN_ERR PFX "Unable to unregister device: errno=%d\n",
                        rv);
         }
 
-        to_clean->handlers->cleanup(to_clean->si_sm);
+        if (to_clean->handlers)
+                to_clean->handlers->cleanup(to_clean->si_sm);
 
         kfree(to_clean->si_sm);
 
diff --git a/drivers/char/ppdev.c b/drivers/char/ppdev.c
index fdd37543aa79..02abfddce45a 100644
--- a/drivers/char/ppdev.c
+++ b/drivers/char/ppdev.c
@@ -287,12 +287,10 @@ static int register_device (int minor, struct pp_struct *pp)
         char *name;
         int fl;
 
-        name = kmalloc (strlen (CHRDEV) + 3, GFP_KERNEL);
+        name = kasprintf(GFP_KERNEL, CHRDEV "%x", minor);
         if (name == NULL)
                 return -ENOMEM;
 
-        sprintf (name, CHRDEV "%x", minor);
-
         port = parport_find_number (minor);
         if (!port) {
                 printk (KERN_WARNING "%s: no associated port!\n", name);
diff --git a/drivers/char/ramoops.c b/drivers/char/ramoops.c
new file mode 100644
index 000000000000..74f00b5ffa36
--- /dev/null
+++ b/drivers/char/ramoops.c
@@ -0,0 +1,162 @@
+/*
+ * RAM Oops/Panic logger
+ *
+ * Copyright (C) 2010 Marco Stornelli <marco.stornelli@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/kmsg_dump.h>
+#include <linux/time.h>
+#include <linux/io.h>
+#include <linux/ioport.h>
+
+#define RAMOOPS_KERNMSG_HDR "===="
+#define RAMOOPS_HEADER_SIZE   (5 + sizeof(struct timeval))
+
+#define RECORD_SIZE 4096
+
+static ulong mem_address;
+module_param(mem_address, ulong, 0400);
+MODULE_PARM_DESC(mem_address,
+                "start of reserved RAM used to store oops/panic logs");
+
+static ulong mem_size;
+module_param(mem_size, ulong, 0400);
+MODULE_PARM_DESC(mem_size,
+                "size of reserved RAM used to store oops/panic logs");
+
+static int dump_oops = 1;
+module_param(dump_oops, int, 0600);
+MODULE_PARM_DESC(dump_oops,
+                "set to 1 to dump oopses, 0 to only dump panics (default 1)");
+
+static struct ramoops_context {
+        struct kmsg_dumper dump;
+        void *virt_addr;
+        phys_addr_t phys_addr;
+        unsigned long size;
+        int count;
+        int max_count;
+} oops_cxt;
+
+static void ramoops_do_dump(struct kmsg_dumper *dumper,
+                enum kmsg_dump_reason reason, const char *s1, unsigned long l1,
+                const char *s2, unsigned long l2)
+{
+        struct ramoops_context *cxt = container_of(dumper,
+                        struct ramoops_context, dump);
+        unsigned long s1_start, s2_start;
+        unsigned long l1_cpy, l2_cpy;
+        int res;
+        char *buf;
+        struct timeval timestamp;
+
+        /* Only dump oopses if dump_oops is set */
+        if (reason == KMSG_DUMP_OOPS && !dump_oops)
+                return;
+
+        buf = (char *)(cxt->virt_addr + (cxt->count * RECORD_SIZE));
+        memset(buf, '\0', RECORD_SIZE);
+        res = sprintf(buf, "%s", RAMOOPS_KERNMSG_HDR);
+        buf += res;
+        do_gettimeofday(&timestamp);
+        res = sprintf(buf, "%lu.%lu\n", (long)timestamp.tv_sec, (long)timestamp.tv_usec);
+        buf += res;
+
+        l2_cpy = min(l2, (unsigned long)(RECORD_SIZE - RAMOOPS_HEADER_SIZE));
+        l1_cpy = min(l1, (unsigned long)(RECORD_SIZE - RAMOOPS_HEADER_SIZE) - l2_cpy);
+
+        s2_start = l2 - l2_cpy;
+        s1_start = l1 - l1_cpy;
+
+        memcpy(buf, s1 + s1_start, l1_cpy);
+        memcpy(buf + l1_cpy, s2 + s2_start, l2_cpy);
+
+        cxt->count = (cxt->count + 1) % cxt->max_count;
+}
+
+static int __init ramoops_init(void)
+{
+        struct ramoops_context *cxt = &oops_cxt;
+        int err = -EINVAL;
+
+        if (!mem_size) {
+                printk(KERN_ERR "ramoops: invalid size specification");
+                goto fail3;
+        }
+
+        rounddown_pow_of_two(mem_size);
+
+        if (mem_size < RECORD_SIZE) {
+                printk(KERN_ERR "ramoops: size too small");
+                goto fail3;
+        }
+
+        cxt->max_count = mem_size / RECORD_SIZE;
+        cxt->count = 0;
+        cxt->size = mem_size;
+        cxt->phys_addr = mem_address;
+
+        if (!request_mem_region(cxt->phys_addr, cxt->size, "ramoops")) {
+                printk(KERN_ERR "ramoops: request mem region failed");
+                err = -EINVAL;
+                goto fail3;
+        }
+
+        cxt->virt_addr = ioremap(cxt->phys_addr,  cxt->size);
+        if (!cxt->virt_addr) {
+                printk(KERN_ERR "ramoops: ioremap failed");
+                goto fail2;
+        }
+
+        cxt->dump.dump = ramoops_do_dump;
+        err = kmsg_dump_register(&cxt->dump);
+        if (err) {
+                printk(KERN_ERR "ramoops: registering kmsg dumper failed");
+                goto fail1;
+        }
+
+        return 0;
+
+fail1:
+        iounmap(cxt->virt_addr);
+fail2:
+        release_mem_region(cxt->phys_addr, cxt->size);
+fail3:
+        return err;
+}
+
+static void __exit ramoops_exit(void)
+{
+        struct ramoops_context *cxt = &oops_cxt;
+
+        if (kmsg_dump_unregister(&cxt->dump) < 0)
+                printk(KERN_WARNING "ramoops: could not unregister kmsg_dumper");
+
+        iounmap(cxt->virt_addr);
+        release_mem_region(cxt->phys_addr, cxt->size);
+}
+
+
+module_init(ramoops_init);
+module_exit(ramoops_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Marco Stornelli <marco.stornelli@gmail.com>");
+MODULE_DESCRIPTION("RAM Oops/Panic logger/driver");
diff --git a/drivers/char/vt.c b/drivers/char/vt.c
index bd1d1164fec5..7cdb6ee569cd 100644
--- a/drivers/char/vt.c
+++ b/drivers/char/vt.c
@@ -3967,13 +3967,9 @@ static int con_font_set(struct vc_data *vc, struct console_font_op *op)
         font.charcount = op->charcount;
         font.height = op->height;
         font.width = op->width;
-        font.data = kmalloc(size, GFP_KERNEL);
-        if (!font.data)
-                return -ENOMEM;
-        if (copy_from_user(font.data, op->data, size)) {
-                kfree(font.data);
-                return -EFAULT;
-        }
+        font.data = memdup_user(op->data, size);
+        if (IS_ERR(font.data))
+                return PTR_ERR(font.data);
         acquire_console_sem();
         if (vc->vc_sw->con_font_set)
                 rc = vc->vc_sw->con_font_set(vc, &font, op->flags);
diff --git a/drivers/edac/i5000_edac.c b/drivers/edac/i5000_edac.c
index adc10a2ac5f6..996c1bdb5a34 100644
--- a/drivers/edac/i5000_edac.c
+++ b/drivers/edac/i5000_edac.c
@@ -774,7 +774,7 @@ static void i5000_clear_error(struct mem_ctl_info *mci)
 static void i5000_check_error(struct mem_ctl_info *mci)
 {
         struct i5000_error_info info;
-        debugf4("MC%d: " __FILE__ ": %s()\n", mci->mc_idx, __func__);
+        debugf4("MC%d: %s: %s()\n", mci->mc_idx, __FILE__, __func__);
         i5000_get_error_info(mci, &info);
         i5000_process_error_info(mci, &info, 1);
 }
@@ -1353,8 +1353,8 @@ static int i5000_probe1(struct pci_dev *pdev, int dev_idx)
         int num_dimms_per_channel;
         int num_csrows;
 
-        debugf0("MC: " __FILE__ ": %s(), pdev bus %u dev=0x%x fn=0x%x\n",
-                __func__,
+        debugf0("MC: %s: %s(), pdev bus %u dev=0x%x fn=0x%x\n",
+                __FILE__, __func__,
                 pdev->bus->number,
                 PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn));
 
@@ -1389,7 +1389,7 @@ static int i5000_probe1(struct pci_dev *pdev, int dev_idx)
                 return -ENOMEM;
 
         kobject_get(&mci->edac_mci_kobj);
-        debugf0("MC: " __FILE__ ": %s(): mci = %p\n", __func__, mci);
+        debugf0("MC: %s: %s(): mci = %p\n", __FILE__, __func__, mci);
 
         mci->dev = &pdev->dev;  /* record ptr  to the generic device */
 
@@ -1432,8 +1432,8 @@ static int i5000_probe1(struct pci_dev *pdev, int dev_idx)
 
         /* add this new MC control structure to EDAC's list of MCs */
         if (edac_mc_add_mc(mci)) {
-                debugf0("MC: " __FILE__
-                        ": %s(): failed edac_mc_add_mc()\n", __func__);
+                debugf0("MC: %s: %s(): failed edac_mc_add_mc()\n",
+                        __FILE__, __func__);
                 /* FIXME: perhaps some code should go here that disables error
                  * reporting if we just enabled it
                  */
@@ -1478,7 +1478,7 @@ static int __devinit i5000_init_one(struct pci_dev *pdev,
 {
         int rc;
 
-        debugf0("MC: " __FILE__ ": %s()\n", __func__);
+        debugf0("MC: %s: %s()\n", __FILE__, __func__);
 
         /* wake up device */
         rc = pci_enable_device(pdev);
@@ -1497,7 +1497,7 @@ static void __devexit i5000_remove_one(struct pci_dev *pdev)
 {
         struct mem_ctl_info *mci;
 
-        debugf0(__FILE__ ": %s()\n", __func__);
+        debugf0("%s: %s()\n", __FILE__, __func__);
 
         if (i5000_pci)
                 edac_pci_release_generic_ctl(i5000_pci);
@@ -1544,7 +1544,7 @@ static int __init i5000_init(void)
 {
         int pci_rc;
 
-        debugf2("MC: " __FILE__ ": %s()\n", __func__);
+        debugf2("MC: %s: %s()\n", __FILE__, __func__);
 
        /* Ensure that the OPSTATE is set correctly for POLL or NMI */
        opstate_init();
@@ -1560,7 +1560,7 @@ static int __init i5000_init(void)
  */
 static void __exit i5000_exit(void)
 {
-        debugf2("MC: " __FILE__ ": %s()\n", __func__);
+        debugf2("MC: %s: %s()\n", __FILE__, __func__);
         pci_unregister_driver(&i5000_driver);
 }
 
diff --git a/drivers/edac/i5400_edac.c b/drivers/edac/i5400_edac.c
index f99d10655ed4..010c1d6526f5 100644
--- a/drivers/edac/i5400_edac.c
+++ b/drivers/edac/i5400_edac.c
@@ -694,7 +694,7 @@ static void i5400_clear_error(struct mem_ctl_info *mci)
 static void i5400_check_error(struct mem_ctl_info *mci)
 {
         struct i5400_error_info info;
-        debugf4("MC%d: " __FILE__ ": %s()\n", mci->mc_idx, __func__);
+        debugf4("MC%d: %s: %s()\n", mci->mc_idx, __FILE__, __func__);
         i5400_get_error_info(mci, &info);
         i5400_process_error_info(mci, &info);
 }
@@ -1227,8 +1227,8 @@ static int i5400_probe1(struct pci_dev *pdev, int dev_idx)
         if (dev_idx >= ARRAY_SIZE(i5400_devs))
                 return -EINVAL;
 
-        debugf0("MC: " __FILE__ ": %s(), pdev bus %u dev=0x%x fn=0x%x\n",
-                __func__,
+        debugf0("MC: %s: %s(), pdev bus %u dev=0x%x fn=0x%x\n",
+                __FILE__, __func__,
                 pdev->bus->number,
                 PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn));
 
@@ -1256,7 +1256,7 @@ static int i5400_probe1(struct pci_dev *pdev, int dev_idx)
         if (mci == NULL)
                 return -ENOMEM;
 
-        debugf0("MC: " __FILE__ ": %s(): mci = %p\n", __func__, mci);
+        debugf0("MC: %s: %s(): mci = %p\n", __FILE__, __func__, mci);
 
         mci->dev = &pdev->dev;  /* record ptr  to the generic device */
 
@@ -1299,8 +1299,8 @@ static int i5400_probe1(struct pci_dev *pdev, int dev_idx)
 
         /* add this new MC control structure to EDAC's list of MCs */
         if (edac_mc_add_mc(mci)) {
-                debugf0("MC: " __FILE__
-                        ": %s(): failed edac_mc_add_mc()\n", __func__);
+                debugf0("MC: %s: %s(): failed edac_mc_add_mc()\n",
+                        __FILE__, __func__);
                 /* FIXME: perhaps some code should go here that disables error
                  * reporting if we just enabled it
                  */
@@ -1344,7 +1344,7 @@ static int __devinit i5400_init_one(struct pci_dev *pdev,
 {
         int rc;
 
-        debugf0("MC: " __FILE__ ": %s()\n", __func__);
+        debugf0("MC: %s: %s()\n", __FILE__, __func__);
 
         /* wake up device */
         rc = pci_enable_device(pdev);
@@ -1363,7 +1363,7 @@ static void __devexit i5400_remove_one(struct pci_dev *pdev)
 {
         struct mem_ctl_info *mci;
 
-        debugf0(__FILE__ ": %s()\n", __func__);
+        debugf0("%s: %s()\n", __FILE__, __func__);
 
         if (i5400_pci)
                 edac_pci_release_generic_ctl(i5400_pci);
@@ -1409,7 +1409,7 @@ static int __init i5400_init(void)
 {
         int pci_rc;
 
-        debugf2("MC: " __FILE__ ": %s()\n", __func__);
+        debugf2("MC: %s: %s()\n", __FILE__, __func__);
 
         /* Ensure that the OPSTATE is set correctly for POLL or NMI */
         opstate_init();
@@ -1425,7 +1425,7 @@ static int __init i5400_init(void)
  */
 static void __exit i5400_exit(void)
 {
-        debugf2("MC: " __FILE__ ": %s()\n", __func__);
+        debugf2("MC: %s: %s()\n", __FILE__, __func__);
         pci_unregister_driver(&i5400_driver);
 }
 
diff --git a/drivers/edac/i82443bxgx_edac.c b/drivers/edac/i82443bxgx_edac.c
index 2bf2c5051bfe..a2fa1feed724 100644
--- a/drivers/edac/i82443bxgx_edac.c
+++ b/drivers/edac/i82443bxgx_edac.c
@@ -178,7 +178,7 @@ static void i82443bxgx_edacmc_check(struct mem_ctl_info *mci)
 {
         struct i82443bxgx_edacmc_error_info info;
 
-        debugf1("MC%d: " __FILE__ ": %s()\n", mci->mc_idx, __func__);
+        debugf1("MC%d: %s: %s()\n", mci->mc_idx, __FILE__, __func__);
         i82443bxgx_edacmc_get_error_info(mci, &info);
         i82443bxgx_edacmc_process_error_info(mci, &info, 1);
 }
@@ -198,13 +198,13 @@ static void i82443bxgx_init_csrows(struct mem_ctl_info *mci,
         for (index = 0; index < mci->nr_csrows; index++) {
                 csrow = &mci->csrows[index];
                 pci_read_config_byte(pdev, I82443BXGX_DRB + index, &drbar);
-                debugf1("MC%d: " __FILE__ ": %s() Row=%d DRB = %#0x\n",
-                        mci->mc_idx, __func__, index, drbar);
+                debugf1("MC%d: %s: %s() Row=%d DRB = %#0x\n",
+                        mci->mc_idx, __FILE__, __func__, index, drbar);
                 row_high_limit = ((u32) drbar << 23);
                 /* find the DRAM Chip Select Base address and mask */
-                debugf1("MC%d: " __FILE__ ": %s() Row=%d, "
-                        "Boundry Address=%#0x, Last = %#0x \n",
-                        mci->mc_idx, __func__, index, row_high_limit,
+                debugf1("MC%d: %s: %s() Row=%d, "
+                        "Boundry Address=%#0x, Last = %#0x\n",
+                        mci->mc_idx, __FILE__, __func__, index, row_high_limit,
                         row_high_limit_last);
 
                 /* 440GX goes to 2GB, represented with a DRB of 0. */
@@ -237,7 +237,7 @@ static int i82443bxgx_edacmc_probe1(struct pci_dev *pdev, int dev_idx)
         enum mem_type mtype;
         enum edac_type edac_mode;
 
-        debugf0("MC: " __FILE__ ": %s()\n", __func__);
+        debugf0("MC: %s: %s()\n", __FILE__, __func__);
 
         /* Something is really hosed if PCI config space reads from
          * the MC aren't working.
@@ -250,7 +250,7 @@ static int i82443bxgx_edacmc_probe1(struct pci_dev *pdev, int dev_idx)
         if (mci == NULL)
                 return -ENOMEM;
 
-        debugf0("MC: " __FILE__ ": %s(): mci = %p\n", __func__, mci);
+        debugf0("MC: %s: %s(): mci = %p\n", __FILE__, __func__, mci);
         mci->dev = &pdev->dev;
         mci->mtype_cap = MEM_FLAG_EDO | MEM_FLAG_SDR | MEM_FLAG_RDR;
         mci->edac_ctl_cap = EDAC_FLAG_NONE | EDAC_FLAG_EC | EDAC_FLAG_SECDED;
@@ -336,7 +336,7 @@ static int i82443bxgx_edacmc_probe1(struct pci_dev *pdev, int dev_idx)
                         __func__);
         }
 
-        debugf3("MC: " __FILE__ ": %s(): success\n", __func__);
+        debugf3("MC: %s: %s(): success\n", __FILE__, __func__);
         return 0;
 
 fail:
@@ -352,7 +352,7 @@ static int __devinit i82443bxgx_edacmc_init_one(struct pci_dev *pdev,
 {
         int rc;
 
-        debugf0("MC: " __FILE__ ": %s()\n", __func__);
+        debugf0("MC: %s: %s()\n", __FILE__, __func__);
 
         /* don't need to call pci_enable_device() */
         rc = i82443bxgx_edacmc_probe1(pdev, ent->driver_data);
@@ -367,7 +367,7 @@ static void __devexit i82443bxgx_edacmc_remove_one(struct pci_dev *pdev)
 {
         struct mem_ctl_info *mci;
 
-        debugf0(__FILE__ ": %s()\n", __func__);
+        debugf0("%s: %s()\n", __FILE__, __func__);
 
         if (i82443bxgx_pci)
                 edac_pci_release_generic_ctl(i82443bxgx_pci);
diff --git a/drivers/firewire/core-card.c b/drivers/firewire/core-card.c
index 5045156c5313..9dcb30466ec0 100644
--- a/drivers/firewire/core-card.c
+++ b/drivers/firewire/core-card.c
@@ -30,7 +30,6 @@
 #include <linux/module.h>
 #include <linux/mutex.h>
 #include <linux/spinlock.h>
-#include <linux/timer.h>
 #include <linux/workqueue.h>
 
 #include <asm/atomic.h>
@@ -63,7 +62,7 @@ static size_t config_rom_length = 1 + 4 + 1 + 1;
 #define BIB_CRC(v)              ((v) <<  0)
 #define BIB_CRC_LENGTH(v)       ((v) << 16)
 #define BIB_INFO_LENGTH(v)      ((v) << 24)
-
+#define BIB_BUS_NAME            0x31333934 /* "1394" */
 #define BIB_LINK_SPEED(v)       ((v) <<  0)
 #define BIB_GENERATION(v)       ((v) <<  4)
 #define BIB_MAX_ROM(v)          ((v) <<  8)
@@ -73,7 +72,8 @@ static size_t config_rom_length = 1 + 4 + 1 + 1;
 #define BIB_BMC                 ((1) << 28)
 #define BIB_ISC                 ((1) << 29)
 #define BIB_CMC                 ((1) << 30)
-#define BIB_IMC                 ((1) << 31)
+#define BIB_IRMC                ((1) << 31)
+#define NODE_CAPABILITIES       0x0c0083c0 /* per IEEE 1394 clause 8.3.2.6.5.2 */
 
 static void generate_config_rom(struct fw_card *card, __be32 *config_rom)
 {
@@ -91,18 +91,18 @@ static void generate_config_rom(struct fw_card *card, __be32 *config_rom)
 
         config_rom[0] = cpu_to_be32(
                 BIB_CRC_LENGTH(4) | BIB_INFO_LENGTH(4) | BIB_CRC(0));
-        config_rom[1] = cpu_to_be32(0x31333934);
+        config_rom[1] = cpu_to_be32(BIB_BUS_NAME);
         config_rom[2] = cpu_to_be32(
                 BIB_LINK_SPEED(card->link_speed) |
                 BIB_GENERATION(card->config_rom_generation++ % 14 + 2) |
                 BIB_MAX_ROM(2) |
                 BIB_MAX_RECEIVE(card->max_receive) |
-                BIB_BMC | BIB_ISC | BIB_CMC | BIB_IMC);
+                BIB_BMC | BIB_ISC | BIB_CMC | BIB_IRMC);
         config_rom[3] = cpu_to_be32(card->guid >> 32);
         config_rom[4] = cpu_to_be32(card->guid);
 
         /* Generate root directory. */
-        config_rom[6] = cpu_to_be32(0x0c0083c0); /* node capabilities */
+        config_rom[6] = cpu_to_be32(NODE_CAPABILITIES);
         i = 7;
         j = 7 + descriptor_count;
 
@@ -407,13 +407,6 @@ static void fw_card_bm_work(struct work_struct *work)
         fw_card_put(card);
 }
 
-static void flush_timer_callback(unsigned long data)
-{
-        struct fw_card *card = (struct fw_card *)data;
-
-        fw_flush_transactions(card);
-}
-
 void fw_card_initialize(struct fw_card *card,
                         const struct fw_card_driver *driver,
                         struct device *device)
@@ -432,8 +425,6 @@ void fw_card_initialize(struct fw_card *card,
         init_completion(&card->done);
         INIT_LIST_HEAD(&card->transaction_list);
         spin_lock_init(&card->lock);
-        setup_timer(&card->flush_timer,
-                    flush_timer_callback, (unsigned long)card);
 
         card->local_node = NULL;
 
@@ -558,7 +549,6 @@ void fw_core_remove_card(struct fw_card *card)
         wait_for_completion(&card->done);
 
         WARN_ON(!list_empty(&card->transaction_list));
-        del_timer_sync(&card->flush_timer);
 }
 EXPORT_SYMBOL(fw_core_remove_card);
 
diff --git a/drivers/firewire/core-cdev.c b/drivers/firewire/core-cdev.c
index 14a34d99eea2..5bf106b9d791 100644
--- a/drivers/firewire/core-cdev.c
+++ b/drivers/firewire/core-cdev.c
@@ -227,7 +227,7 @@ static int fw_device_op_open(struct inode *inode, struct file *file)
         list_add_tail(&client->link, &device->client_list);
         mutex_unlock(&device->client_list_mutex);
 
-        return 0;
+        return nonseekable_open(inode, file);
 }
 
 static void queue_event(struct client *client, struct event *event,
@@ -1496,13 +1496,13 @@ static unsigned int fw_device_op_poll(struct file *file, poll_table * pt)
 
 const struct file_operations fw_device_ops = {
         .owner          = THIS_MODULE,
+        .llseek         = no_llseek,
         .open           = fw_device_op_open,
         .read           = fw_device_op_read,
         .unlocked_ioctl = fw_device_op_ioctl,
-        .poll           = fw_device_op_poll,
-        .release        = fw_device_op_release,
         .mmap           = fw_device_op_mmap,
-
+        .release        = fw_device_op_release,
+        .poll           = fw_device_op_poll,
 #ifdef CONFIG_COMPAT
         .compat_ioctl   = fw_device_op_compat_ioctl,
 #endif
diff --git a/drivers/firewire/core-transaction.c b/drivers/firewire/core-transaction.c
index 673b03f8b4ec..fdc33ff06dc1 100644
--- a/drivers/firewire/core-transaction.c
+++ b/drivers/firewire/core-transaction.c
@@ -81,7 +81,7 @@ static int close_transaction(struct fw_transaction *transaction,
         spin_lock_irqsave(&card->lock, flags);
         list_for_each_entry(t, &card->transaction_list, link) {
                 if (t == transaction) {
-                        list_del(&t->link);
+                        list_del_init(&t->link);
                         card->tlabel_mask &= ~(1ULL << t->tlabel);
                         break;
                 }
@@ -89,6 +89,7 @@ static int close_transaction(struct fw_transaction *transaction,
         spin_unlock_irqrestore(&card->lock, flags);
 
         if (&t->link != &card->transaction_list) {
+                del_timer_sync(&t->split_timeout_timer);
                 t->callback(card, rcode, NULL, 0, t->callback_data);
                 return 0;
         }
@@ -121,6 +122,31 @@ int fw_cancel_transaction(struct fw_card *card,
 }
 EXPORT_SYMBOL(fw_cancel_transaction);
 
+static void split_transaction_timeout_callback(unsigned long data)
+{
+        struct fw_transaction *t = (struct fw_transaction *)data;
+        struct fw_card *card = t->card;
+        unsigned long flags;
+
+        spin_lock_irqsave(&card->lock, flags);
+        if (list_empty(&t->link)) {
+                spin_unlock_irqrestore(&card->lock, flags);
+                return;
+        }
+        list_del(&t->link);
+        card->tlabel_mask &= ~(1ULL << t->tlabel);
+        spin_unlock_irqrestore(&card->lock, flags);
+
+        card->driver->cancel_packet(card, &t->packet);
+
+        /*
+         * At this point cancel_packet will never call the transaction
+         * callback, since we just took the transaction out of the list.
+         * So do it here.
+         */
+        t->callback(card, RCODE_CANCELLED, NULL, 0, t->callback_data);
+}
+
 static void transmit_complete_callback(struct fw_packet *packet,
                                        struct fw_card *card, int status)
 {
@@ -229,6 +255,23 @@ static void fw_fill_request(struct fw_packet *packet, int tcode, int tlabel,
         packet->payload_mapped = false;
 }
 
+static int allocate_tlabel(struct fw_card *card)
+{
+        int tlabel;
+
+        tlabel = card->current_tlabel;
+        while (card->tlabel_mask & (1ULL << tlabel)) {
+                tlabel = (tlabel + 1) & 0x3f;
+                if (tlabel == card->current_tlabel)
+                        return -EBUSY;
+        }
+
+        card->current_tlabel = (tlabel + 1) & 0x3f;
+        card->tlabel_mask |= 1ULL << tlabel;
+
+        return tlabel;
+}
+
 /**
  * This function provides low-level access to the IEEE1394 transaction
  * logic.  Most C programs would use either fw_read(), fw_write() or
@@ -277,31 +320,26 @@ void fw_send_request(struct fw_card *card, struct fw_transaction *t, int tcode,
         int tlabel;
 
         /*
-         * Bump the flush timer up 100ms first of all so we
-         * don't race with a flush timer callback.
-         */
-
-        mod_timer(&card->flush_timer, jiffies + DIV_ROUND_UP(HZ, 10));
-
-        /*
          * Allocate tlabel from the bitmap and put the transaction on
          * the list while holding the card spinlock.
          */
 
         spin_lock_irqsave(&card->lock, flags);
 
-        tlabel = card->current_tlabel;
-        if (card->tlabel_mask & (1ULL << tlabel)) {
+        tlabel = allocate_tlabel(card);
+        if (tlabel < 0) {
                 spin_unlock_irqrestore(&card->lock, flags);
                 callback(card, RCODE_SEND_ERROR, NULL, 0, callback_data);
                 return;
         }
 
-        card->current_tlabel = (card->current_tlabel + 1) & 0x3f;
-        card->tlabel_mask |= (1ULL << tlabel);
-
         t->node_id = destination_id;
         t->tlabel = tlabel;
+        t->card = card;
+        setup_timer(&t->split_timeout_timer,
+                    split_transaction_timeout_callback, (unsigned long)t);
+        /* FIXME: start this timer later, relative to t->timestamp */
+        mod_timer(&t->split_timeout_timer, jiffies + DIV_ROUND_UP(HZ, 10));
         t->callback = callback;
         t->callback_data = callback_data;
 
@@ -347,11 +385,13 @@ int fw_run_transaction(struct fw_card *card, int tcode, int destination_id,
         struct transaction_callback_data d;
         struct fw_transaction t;
 
+        init_timer_on_stack(&t.split_timeout_timer);
         init_completion(&d.done);
         d.payload = payload;
         fw_send_request(card, &t, tcode, destination_id, generation, speed,
                         offset, payload, length, transaction_callback, &d);
         wait_for_completion(&d.done);
+        destroy_timer_on_stack(&t.split_timeout_timer);
 
         return d.rcode;
 }
@@ -394,30 +434,6 @@ void fw_send_phy_config(struct fw_card *card,
         mutex_unlock(&phy_config_mutex);
 }
 
-void fw_flush_transactions(struct fw_card *card)
-{
-        struct fw_transaction *t, *next;
-        struct list_head list;
-        unsigned long flags;
-
-        INIT_LIST_HEAD(&list);
-        spin_lock_irqsave(&card->lock, flags);
-        list_splice_init(&card->transaction_list, &list);
-        card->tlabel_mask = 0;
-        spin_unlock_irqrestore(&card->lock, flags);
-
-        list_for_each_entry_safe(t, next, &list, link) {
-                card->driver->cancel_packet(card, &t->packet);
-
-                /*
-                 * At this point cancel_packet will never call the
-                 * transaction callback, since we just took all the
-                 * transactions out of the list.  So do it here.
-                 */
-                t->callback(card, RCODE_CANCELLED, NULL, 0, t->callback_data);
-        }
-}
-
 static struct fw_address_handler *lookup_overlapping_address_handler(
         struct list_head *list, unsigned long long offset, size_t length)
 {
@@ -827,8 +843,8 @@ void fw_core_handle_response(struct fw_card *card, struct fw_packet *p)
         spin_lock_irqsave(&card->lock, flags);
         list_for_each_entry(t, &card->transaction_list, link) {
                 if (t->node_id == source && t->tlabel == tlabel) {
-                        list_del(&t->link);
-                        card->tlabel_mask &= ~(1 << t->tlabel);
+                        list_del_init(&t->link);
+                        card->tlabel_mask &= ~(1ULL << t->tlabel);
                         break;
                 }
         }
@@ -869,6 +885,8 @@ void fw_core_handle_response(struct fw_card *card, struct fw_packet *p)
                 break;
         }
 
+        del_timer_sync(&t->split_timeout_timer);
+
         /*
          * The response handler may be executed while the request handler
          * is still pending.  Cancel the request handler.
diff --git a/drivers/firewire/core.h b/drivers/firewire/core.h
index fb0321300cce..0ecfcd95f4c5 100644
--- a/drivers/firewire/core.h
+++ b/drivers/firewire/core.h
@@ -27,7 +27,12 @@ struct fw_packet;
 #define PHY_LINK_ACTIVE         0x80
 #define PHY_CONTENDER           0x40
 #define PHY_BUS_RESET           0x40
+#define PHY_EXTENDED_REGISTERS  0xe0
 #define PHY_BUS_SHORT_RESET     0x40
+#define PHY_INT_STATUS_BITS     0x3c
+#define PHY_ENABLE_ACCEL        0x02
+#define PHY_ENABLE_MULTI        0x01
+#define PHY_PAGE_SELECT         0xe0
 
 #define BANDWIDTH_AVAILABLE_INITIAL     4915
 #define BROADCAST_CHANNEL_INITIAL       (1 << 31 | 31)
@@ -215,7 +220,6 @@ void fw_core_handle_request(struct fw_card *card, struct fw_packet *request);
 void fw_core_handle_response(struct fw_card *card, struct fw_packet *packet);
 void fw_fill_response(struct fw_packet *response, u32 *request_header,
                       int rcode, void *payload, size_t length);
-void fw_flush_transactions(struct fw_card *card);
 void fw_send_phy_config(struct fw_card *card,
                         int node_id, int generation, int gap_count);
 
diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c
index a3b083a7403a..9f627e758cfc 100644
--- a/drivers/firewire/ohci.c
+++ b/drivers/firewire/ohci.c
@@ -236,13 +236,15 @@ static char ohci_driver_name[] = KBUILD_MODNAME;
 #define QUIRK_CYCLE_TIMER               1
 #define QUIRK_RESET_PACKET              2
 #define QUIRK_BE_HEADERS                4
+#define QUIRK_NO_1394A                  8
 
 /* In case of multiple matches in ohci_quirks[], only the first one is used. */
 static const struct {
         unsigned short vendor, device, flags;
 } ohci_quirks[] = {
         {PCI_VENDOR_ID_TI,      PCI_DEVICE_ID_TI_TSB12LV22, QUIRK_CYCLE_TIMER |
-                                                            QUIRK_RESET_PACKET},
+                                                            QUIRK_RESET_PACKET |
+                                                            QUIRK_NO_1394A},
         {PCI_VENDOR_ID_TI,      PCI_ANY_ID,     QUIRK_RESET_PACKET},
         {PCI_VENDOR_ID_AL,      PCI_ANY_ID,     QUIRK_CYCLE_TIMER},
         {PCI_VENDOR_ID_NEC,     PCI_ANY_ID,     QUIRK_CYCLE_TIMER},
@@ -257,15 +259,16 @@ MODULE_PARM_DESC(quirks, "Chip quirks (default = 0"
         ", nonatomic cycle timer = "    __stringify(QUIRK_CYCLE_TIMER)
         ", reset packet generation = "  __stringify(QUIRK_RESET_PACKET)
         ", AR/selfID endianess = "      __stringify(QUIRK_BE_HEADERS)
+        ", no 1394a enhancements = "    __stringify(QUIRK_NO_1394A)
         ")");
 
-#ifdef CONFIG_FIREWIRE_OHCI_DEBUG
-
 #define OHCI_PARAM_DEBUG_AT_AR          1
 #define OHCI_PARAM_DEBUG_SELFIDS        2
 #define OHCI_PARAM_DEBUG_IRQS           4
 #define OHCI_PARAM_DEBUG_BUSRESETS      8 /* only effective before chip init */
 
+#ifdef CONFIG_FIREWIRE_OHCI_DEBUG
+
 static int param_debug;
 module_param_named(debug, param_debug, int, 0644);
 MODULE_PARM_DESC(debug, "Verbose logging (default = 0"
@@ -438,9 +441,10 @@ static void log_ar_at_event(char dir, int speed, u32 *header, int evt)
 
 #else
 
-#define log_irqs(evt)
-#define log_selfids(node_id, generation, self_id_count, sid)
-#define log_ar_at_event(dir, speed, header, evt)
+#define param_debug 0
+static inline void log_irqs(u32 evt) {}
+static inline void log_selfids(int node_id, int generation, int self_id_count, u32 *s) {}
+static inline void log_ar_at_event(char dir, int speed, u32 *header, int evt) {}
 
 #endif /* CONFIG_FIREWIRE_OHCI_DEBUG */
 
@@ -460,27 +464,71 @@ static inline void flush_writes(const struct fw_ohci *ohci)
         reg_read(ohci, OHCI1394_Version);
 }
 
-static int ohci_update_phy_reg(struct fw_card *card, int addr,
-                               int clear_bits, int set_bits)
+static int read_phy_reg(struct fw_ohci *ohci, int addr)
 {
-        struct fw_ohci *ohci = fw_ohci(card);
-        u32 val, old;
+        u32 val;
+        int i;
 
         reg_write(ohci, OHCI1394_PhyControl, OHCI1394_PhyControl_Read(addr));
-        flush_writes(ohci);
-        msleep(2);
-        val = reg_read(ohci, OHCI1394_PhyControl);
-        if ((val & OHCI1394_PhyControl_ReadDone) == 0) {
-                fw_error("failed to set phy reg bits.\n");
-                return -EBUSY;
+        for (i = 0; i < 10; i++) {
+                val = reg_read(ohci, OHCI1394_PhyControl);
+                if (val & OHCI1394_PhyControl_ReadDone)
+                        return OHCI1394_PhyControl_ReadData(val);
+
+                msleep(1);
         }
+        fw_error("failed to read phy reg\n");
+
+        return -EBUSY;
+}
+
+static int write_phy_reg(const struct fw_ohci *ohci, int addr, u32 val)
+{
+        int i;
 
-        old = OHCI1394_PhyControl_ReadData(val);
-        old = (old & ~clear_bits) | set_bits;
         reg_write(ohci, OHCI1394_PhyControl,
-                  OHCI1394_PhyControl_Write(addr, old));
+                  OHCI1394_PhyControl_Write(addr, val));
+        for (i = 0; i < 100; i++) {
+                val = reg_read(ohci, OHCI1394_PhyControl);
+                if (!(val & OHCI1394_PhyControl_WritePending))
+                        return 0;
 
-        return 0;
+                msleep(1);
+        }
+        fw_error("failed to write phy reg\n");
+
+        return -EBUSY;
+}
+
+static int ohci_update_phy_reg(struct fw_card *card, int addr,
+                               int clear_bits, int set_bits)
+{
+        struct fw_ohci *ohci = fw_ohci(card);
+        int ret;
+
+        ret = read_phy_reg(ohci, addr);
+        if (ret < 0)
+                return ret;
+
+        /*
+         * The interrupt status bits are cleared by writing a one bit.
+         * Avoid clearing them unless explicitly requested in set_bits.
+         */
+        if (addr == 5)
+                clear_bits |= PHY_INT_STATUS_BITS;
+
+        return write_phy_reg(ohci, addr, (ret & ~clear_bits) | set_bits);
+}
+
+static int read_paged_phy_reg(struct fw_ohci *ohci, int page, int addr)
+{
+        int ret;
+
+        ret = ohci_update_phy_reg(&ohci->card, 7, PHY_PAGE_SELECT, page << 5);
+        if (ret < 0)
+                return ret;
+
+        return read_phy_reg(ohci, addr);
 }
 
 static int ar_context_add_page(struct ar_context *ctx)
@@ -1495,13 +1543,64 @@ static void copy_config_rom(__be32 *dest, const __be32 *src, size_t length)
                 memset(&dest[length], 0, CONFIG_ROM_SIZE - size);
 }
 
+static int configure_1394a_enhancements(struct fw_ohci *ohci)
+{
+        bool enable_1394a;
+        int ret, clear, set, offset;
+
+        /* Check if the driver should configure link and PHY. */
+        if (!(reg_read(ohci, OHCI1394_HCControlSet) &
+              OHCI1394_HCControl_programPhyEnable))
+                return 0;
+
+        /* Paranoia: check whether the PHY supports 1394a, too. */
+        enable_1394a = false;
+        ret = read_phy_reg(ohci, 2);
+        if (ret < 0)
+                return ret;
+        if ((ret & PHY_EXTENDED_REGISTERS) == PHY_EXTENDED_REGISTERS) {
+                ret = read_paged_phy_reg(ohci, 1, 8);
+                if (ret < 0)
+                        return ret;
+                if (ret >= 1)
+                        enable_1394a = true;
+        }
+
+        if (ohci->quirks & QUIRK_NO_1394A)
+                enable_1394a = false;
+
+        /* Configure PHY and link consistently. */
+        if (enable_1394a) {
+                clear = 0;
+                set = PHY_ENABLE_ACCEL | PHY_ENABLE_MULTI;
+        } else {
+                clear = PHY_ENABLE_ACCEL | PHY_ENABLE_MULTI;
+                set = 0;
+        }
+        ret = ohci_update_phy_reg(&ohci->card, 5, clear, set);
+        if (ret < 0)
+                return ret;
+
+        if (enable_1394a)
+                offset = OHCI1394_HCControlSet;
+        else
+                offset = OHCI1394_HCControlClear;
+        reg_write(ohci, offset, OHCI1394_HCControl_aPhyEnhanceEnable);
+
+        /* Clean up: configuration has been taken care of. */
+        reg_write(ohci, OHCI1394_HCControlClear,
+                  OHCI1394_HCControl_programPhyEnable);
+
+        return 0;
+}
+
 static int ohci_enable(struct fw_card *card,
                        const __be32 *config_rom, size_t length)
 {
         struct fw_ohci *ohci = fw_ohci(card);
         struct pci_dev *dev = to_pci_dev(card->device);
         u32 lps;
-        int i;
+        int i, ret;
 
         if (software_reset(ohci)) {
                 fw_error("Failed to reset ohci card.\n");
@@ -1565,10 +1664,14 @@ static int ohci_enable(struct fw_card *card,
         if (param_debug & OHCI_PARAM_DEBUG_BUSRESETS)
                 reg_write(ohci, OHCI1394_IntMaskSet, OHCI1394_busReset);
 
+        ret = configure_1394a_enhancements(ohci);
+        if (ret < 0)
+                return ret;
+
         /* Activate link_on bit and contender bit in our self ID packets.*/
-        if (ohci_update_phy_reg(card, 4, 0,
-                                PHY_LINK_ACTIVE | PHY_CONTENDER) < 0)
-                return -EIO;
+        ret = ohci_update_phy_reg(card, 4, 0, PHY_LINK_ACTIVE | PHY_CONTENDER);
+        if (ret < 0)
+                return ret;
 
         /*
          * When the link is not yet enabled, the atomic config rom
@@ -2304,7 +2407,7 @@ static const struct fw_card_driver ohci_driver = {
 };
 
 #ifdef CONFIG_PPC_PMAC
-static void ohci_pmac_on(struct pci_dev *dev)
+static void pmac_ohci_on(struct pci_dev *dev)
 {
         if (machine_is(powermac)) {
                 struct device_node *ofn = pci_device_to_OF_node(dev);
@@ -2316,7 +2419,7 @@ static void ohci_pmac_on(struct pci_dev *dev)
         }
 }
 
-static void ohci_pmac_off(struct pci_dev *dev)
+static void pmac_ohci_off(struct pci_dev *dev)
 {
         if (machine_is(powermac)) {
                 struct device_node *ofn = pci_device_to_OF_node(dev);
@@ -2328,15 +2431,15 @@ static void ohci_pmac_off(struct pci_dev *dev)
         }
 }
 #else
-#define ohci_pmac_on(dev)
-#define ohci_pmac_off(dev)
+static inline void pmac_ohci_on(struct pci_dev *dev) {}
+static inline void pmac_ohci_off(struct pci_dev *dev) {}
 #endif /* CONFIG_PPC_PMAC */
 
 static int __devinit pci_probe(struct pci_dev *dev,
                                const struct pci_device_id *ent)
 {
         struct fw_ohci *ohci;
-        u32 bus_options, max_receive, link_speed, version;
+        u32 bus_options, max_receive, link_speed, version, link_enh;
         u64 guid;
         int i, err, n_ir, n_it;
         size_t size;
@@ -2349,7 +2452,7 @@ static int __devinit pci_probe(struct pci_dev *dev,
 
         fw_card_initialize(&ohci->card, &ohci_driver, &dev->dev);
 
-        ohci_pmac_on(dev);
+        pmac_ohci_on(dev);
 
         err = pci_enable_device(dev);
         if (err) {
@@ -2389,6 +2492,23 @@ static int __devinit pci_probe(struct pci_dev *dev,
         if (param_quirks)
                 ohci->quirks = param_quirks;
 
+        /* TI OHCI-Lynx and compatible: set recommended configuration bits. */
+        if (dev->vendor == PCI_VENDOR_ID_TI) {
+                pci_read_config_dword(dev, PCI_CFG_TI_LinkEnh, &link_enh);
+
+                /* adjust latency of ATx FIFO: use 1.7 KB threshold */
+                link_enh &= ~TI_LinkEnh_atx_thresh_mask;
+                link_enh |= TI_LinkEnh_atx_thresh_1_7K;
+
+                /* use priority arbitration for asynchronous responses */
+                link_enh |= TI_LinkEnh_enab_unfair;
+
+                /* required for aPhyEnhanceEnable to work */
+                link_enh |= TI_LinkEnh_enab_accel;
+
+                pci_write_config_dword(dev, PCI_CFG_TI_LinkEnh, link_enh);
+        }
+
         ar_context_init(&ohci->ar_request_ctx, ohci,
                         OHCI1394_AsReqRcvContextControlSet);
 
@@ -2466,7 +2586,7 @@ static int __devinit pci_probe(struct pci_dev *dev,
         pci_disable_device(dev);
  fail_free:
         kfree(&ohci->card);
-        ohci_pmac_off(dev);
+        pmac_ohci_off(dev);
  fail:
         if (err == -ENOMEM)
                 fw_error("Out of memory\n");
@@ -2509,7 +2629,7 @@ static void pci_remove(struct pci_dev *dev)
         pci_release_region(dev, 0);
         pci_disable_device(dev);
         kfree(&ohci->card);
-        ohci_pmac_off(dev);
+        pmac_ohci_off(dev);
 
         fw_notify("Removed fw-ohci device.\n");
 }
@@ -2530,7 +2650,7 @@ static int pci_suspend(struct pci_dev *dev, pm_message_t state)
         err = pci_set_power_state(dev, pci_choose_state(dev, state));
         if (err)
                 fw_error("pci_set_power_state failed with %d\n", err);
-        ohci_pmac_off(dev);
+        pmac_ohci_off(dev);
 
         return 0;
 }
@@ -2540,7 +2660,7 @@ static int pci_resume(struct pci_dev *dev)
         struct fw_ohci *ohci = pci_get_drvdata(dev);
         int err;
 
-        ohci_pmac_on(dev);
+        pmac_ohci_on(dev);
         pci_set_power_state(dev, PCI_D0);
         pci_restore_state(dev);
         err = pci_enable_device(dev);
diff --git a/drivers/firewire/ohci.h b/drivers/firewire/ohci.h
index ba492d85c516..3bc9a5d744eb 100644
--- a/drivers/firewire/ohci.h
+++ b/drivers/firewire/ohci.h
@@ -67,7 +67,7 @@
 #define   OHCI1394_PhyControl_ReadDone          0x80000000
 #define   OHCI1394_PhyControl_ReadData(r)       (((r) & 0x00ff0000) >> 16)
 #define   OHCI1394_PhyControl_Write(addr, data) (((addr) << 8) | (data) | 0x00004000)
-#define   OHCI1394_PhyControl_WriteDone         0x00004000
+#define   OHCI1394_PhyControl_WritePending      0x00004000
 #define OHCI1394_IsochronousCycleTimer        0x0F0
 #define OHCI1394_AsReqFilterHiSet             0x100
 #define OHCI1394_AsReqFilterHiClear           0x104
@@ -154,4 +154,12 @@
 
 #define OHCI1394_phy_tcode              0xe
 
+/* TI extensions */
+
+#define PCI_CFG_TI_LinkEnh              0xf4
+#define  TI_LinkEnh_enab_accel          0x00000002
+#define  TI_LinkEnh_enab_unfair         0x00000080
+#define  TI_LinkEnh_atx_thresh_mask     0x00003000
+#define  TI_LinkEnh_atx_thresh_1_7K     0x00001000
+
 #endif /* _FIREWIRE_OHCI_H */
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index fee678f74a19..4fd0f276df5a 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -139,6 +139,13 @@ config GPIO_MAX732X
           Board setup code must specify the model to use, and the start
           number for these GPIOs.
 
+config GPIO_MAX732X_IRQ
+        bool "Interrupt controller support for MAX732x"
+        depends on GPIO_MAX732X=y && GENERIC_HARDIRQS
+        help
+          Say yes here to enable the max732x to be used as an interrupt
+          controller. It requires the driver to be built in the kernel.
+
 config GPIO_PCA953X
         tristate "PCA953x, PCA955x, TCA64xx, and MAX7310 I/O ports"
         depends on I2C
@@ -264,10 +271,10 @@ config GPIO_BT8XX
           If unsure, say N.
 
 config GPIO_LANGWELL
-        bool "Intel Moorestown Platform Langwell GPIO support"
+        bool "Intel Langwell/Penwell GPIO support"
         depends on PCI
         help
-          Say Y here to support Intel Moorestown platform GPIO.
+          Say Y here to support Intel Langwell/Penwell GPIO.
 
 config GPIO_TIMBERDALE
         bool "Support for timberdale GPIO IP"
diff --git a/drivers/gpio/cs5535-gpio.c b/drivers/gpio/cs5535-gpio.c
index 0c3c498f2260..f73a1555e49d 100644
--- a/drivers/gpio/cs5535-gpio.c
+++ b/drivers/gpio/cs5535-gpio.c
@@ -197,7 +197,7 @@ static int chip_direction_output(struct gpio_chip *c, unsigned offset, int val)
         return 0;
 }
 
-static char *cs5535_gpio_names[] = {
+static const char * const cs5535_gpio_names[] = {
         "GPIO0", "GPIO1", "GPIO2", "GPIO3",
         "GPIO4", "GPIO5", "GPIO6", "GPIO7",
         "GPIO8", "GPIO9", "GPIO10", "GPIO11",
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index cae1b8c5b08c..3ca36542e338 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -722,7 +722,7 @@ int gpio_export(unsigned gpio, bool direction_may_change)
         unsigned long           flags;
         struct gpio_desc        *desc;
         int                     status = -EINVAL;
-        char                    *ioname = NULL;
+        const char              *ioname = NULL;
 
         /* can't export until sysfs is available ... */
         if (!gpio_class.p) {
@@ -753,7 +753,7 @@ int gpio_export(unsigned gpio, bool direction_may_change)
                 struct device   *dev;
 
                 dev = device_create(&gpio_class, desc->chip->dev, MKDEV(0, 0),
-                                desc, ioname ? ioname : "gpio%d", gpio);
+                                desc, ioname ? ioname : "gpio%u", gpio);
                 if (!IS_ERR(dev)) {
                         status = sysfs_create_group(&dev->kobj,
                                                 &gpio_attr_group);
@@ -1106,7 +1106,7 @@ unlock:
 fail:
         /* failures here can mean systems won't boot... */
         if (status)
-                pr_err("gpiochip_add: gpios %d..%d (%s) not registered\n",
+                pr_err("gpiochip_add: gpios %d..%d (%s) failed to register\n",
                         chip->base, chip->base + chip->ngpio - 1,
                         chip->label ? : "generic");
         return status;
@@ -1447,6 +1447,49 @@ fail:
 }
 EXPORT_SYMBOL_GPL(gpio_direction_output);
 
+/**
+ * gpio_set_debounce - sets @debounce time for a @gpio
+ * @gpio: the gpio to set debounce time
+ * @debounce: debounce time is microseconds
+ */
+int gpio_set_debounce(unsigned gpio, unsigned debounce)
+{
+        unsigned long           flags;
+        struct gpio_chip        *chip;
+        struct gpio_desc        *desc = &gpio_desc[gpio];
+        int                     status = -EINVAL;
+
+        spin_lock_irqsave(&gpio_lock, flags);
+
+        if (!gpio_is_valid(gpio))
+                goto fail;
+        chip = desc->chip;
+        if (!chip || !chip->set || !chip->set_debounce)
+                goto fail;
+        gpio -= chip->base;
+        if (gpio >= chip->ngpio)
+                goto fail;
+        status = gpio_ensure_requested(desc, gpio);
+        if (status < 0)
+                goto fail;
+
+        /* now we know the gpio is valid and chip won't vanish */
+
+        spin_unlock_irqrestore(&gpio_lock, flags);
+
+        might_sleep_if(extra_checks && chip->can_sleep);
+
+        return chip->set_debounce(chip, gpio, debounce);
+
+fail:
+        spin_unlock_irqrestore(&gpio_lock, flags);
+        if (status)
+                pr_debug("%s: gpio-%d status %d\n",
+                        __func__, gpio, status);
+
+        return status;
+}
+EXPORT_SYMBOL_GPL(gpio_set_debounce);
 
 /* I/O calls are only valid after configuration completed; the relevant
  * "is this a valid GPIO" error checks should already have been done.
diff --git a/drivers/gpio/it8761e_gpio.c b/drivers/gpio/it8761e_gpio.c
index 41a9388f2fde..48fc43c4bdd1 100644
--- a/drivers/gpio/it8761e_gpio.c
+++ b/drivers/gpio/it8761e_gpio.c
@@ -217,7 +217,10 @@ gpiochip_add_err:
 static void __exit it8761e_gpio_exit(void)
 {
         if (gpio_ba) {
-                gpiochip_remove(&it8761e_gpio_chip);
+                int ret = gpiochip_remove(&it8761e_gpio_chip);
+
+                WARN(ret, "%s(): gpiochip_remove() failed, ret=%d\n",
+                                __func__, ret);
 
                 release_region(gpio_ba, GPIO_IOSIZE);
                 gpio_ba = 0;
diff --git a/drivers/gpio/langwell_gpio.c b/drivers/gpio/langwell_gpio.c
index 00c3a14127af..8383a8d7f994 100644
--- a/drivers/gpio/langwell_gpio.c
+++ b/drivers/gpio/langwell_gpio.c
@@ -17,6 +17,7 @@
 
 /* Supports:
  * Moorestown platform Langwell chip.
+ * Medfield platform Penwell chip.
  */
 
 #include <linux/module.h>
@@ -31,44 +32,65 @@
 #include <linux/gpio.h>
 #include <linux/slab.h>
 
-struct lnw_gpio_register {
-        u32     GPLR[2];
-        u32     GPDR[2];
-        u32     GPSR[2];
-        u32     GPCR[2];
-        u32     GRER[2];
-        u32     GFER[2];
-        u32     GEDR[2];
+/*
+ * Langwell chip has 64 pins and thus there are 2 32bit registers to control
+ * each feature, while Penwell chip has 96 pins for each block, and need 3 32bit
+ * registers to control them, so we only define the order here instead of a
+ * structure, to get a bit offset for a pin (use GPDR as an example):
+ *
+ * nreg = ngpio / 32;
+ * reg = offset / 32;
+ * bit = offset % 32;
+ * reg_addr = reg_base + GPDR * nreg * 4 + reg * 4;
+ *
+ * so the bit of reg_addr is to control pin offset's GPDR feature
+*/
+
+enum GPIO_REG {
+        GPLR = 0,       /* pin level read-only */
+        GPDR,           /* pin direction */
+        GPSR,           /* pin set */
+        GPCR,           /* pin clear */
+        GRER,           /* rising edge detect */
+        GFER,           /* falling edge detect */
+        GEDR,           /* edge detect result */
 };
 
 struct lnw_gpio {
         struct gpio_chip                chip;
-        struct lnw_gpio_register        *reg_base;
+        void                            *reg_base;
         spinlock_t                      lock;
         unsigned                        irq_base;
 };
 
-static int lnw_gpio_get(struct gpio_chip *chip, unsigned offset)
+static void __iomem *gpio_reg(struct gpio_chip *chip, unsigned offset,
+                        enum GPIO_REG reg_type)
 {
         struct lnw_gpio *lnw = container_of(chip, struct lnw_gpio, chip);
+        unsigned nreg = chip->ngpio / 32;
         u8 reg = offset / 32;
-        void __iomem *gplr;
+        void __iomem *ptr;
+
+        ptr = (void __iomem *)(lnw->reg_base + reg_type * nreg * 4 + reg * 4);
+        return ptr;
+}
+
+static int lnw_gpio_get(struct gpio_chip *chip, unsigned offset)
+{
+        void __iomem *gplr = gpio_reg(chip, offset, GPLR);
 
-        gplr = (void __iomem *)(&lnw->reg_base->GPLR[reg]);
         return readl(gplr) & BIT(offset % 32);
 }
 
 static void lnw_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
 {
-        struct lnw_gpio *lnw = container_of(chip, struct lnw_gpio, chip);
-        u8 reg = offset / 32;
         void __iomem *gpsr, *gpcr;
 
         if (value) {
-                gpsr = (void __iomem *)(&lnw->reg_base->GPSR[reg]);
+                gpsr = gpio_reg(chip, offset, GPSR);
                 writel(BIT(offset % 32), gpsr);
         } else {
-                gpcr = (void __iomem *)(&lnw->reg_base->GPCR[reg]);
+                gpcr = gpio_reg(chip, offset, GPCR);
                 writel(BIT(offset % 32), gpcr);
         }
 }
@@ -76,12 +98,10 @@ static void lnw_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
 static int lnw_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
 {
         struct lnw_gpio *lnw = container_of(chip, struct lnw_gpio, chip);
-        u8 reg = offset / 32;
+        void __iomem *gpdr = gpio_reg(chip, offset, GPDR);
         u32 value;
         unsigned long flags;
-        void __iomem *gpdr;
 
-        gpdr = (void __iomem *)(&lnw->reg_base->GPDR[reg]);
         spin_lock_irqsave(&lnw->lock, flags);
         value = readl(gpdr);
         value &= ~BIT(offset % 32);
@@ -94,12 +114,10 @@ static int lnw_gpio_direction_output(struct gpio_chip *chip,
                         unsigned offset, int value)
 {
         struct lnw_gpio *lnw = container_of(chip, struct lnw_gpio, chip);
-        u8 reg = offset / 32;
+        void __iomem *gpdr = gpio_reg(chip, offset, GPDR);
         unsigned long flags;
-        void __iomem *gpdr;
 
         lnw_gpio_set(chip, offset, value);
-        gpdr = (void __iomem *)(&lnw->reg_base->GPDR[reg]);
         spin_lock_irqsave(&lnw->lock, flags);
         value = readl(gpdr);
         value |= BIT(offset % 32);;
@@ -118,11 +136,10 @@ static int lnw_irq_type(unsigned irq, unsigned type)
 {
         struct lnw_gpio *lnw = get_irq_chip_data(irq);
         u32 gpio = irq - lnw->irq_base;
-        u8 reg = gpio / 32;
         unsigned long flags;
         u32 value;
-        void __iomem *grer = (void __iomem *)(&lnw->reg_base->GRER[reg]);
-        void __iomem *gfer = (void __iomem *)(&lnw->reg_base->GFER[reg]);
+        void __iomem *grer = gpio_reg(&lnw->chip, gpio, GRER);
+        void __iomem *gfer = gpio_reg(&lnw->chip, gpio, GFER);
 
         if (gpio >= lnw->chip.ngpio)
                 return -EINVAL;
@@ -158,8 +175,10 @@ static struct irq_chip lnw_irqchip = {
         .set_type       = lnw_irq_type,
 };
 
-static struct pci_device_id lnw_gpio_ids[] = {
-        { PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x080f) },
+static DEFINE_PCI_DEVICE_TABLE(lnw_gpio_ids) = {   /* pin number */
+        { PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x080f), .driver_data = 64 },
+        { PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x081f), .driver_data = 96 },
+        { PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x081a), .driver_data = 96 },
         { 0, }
 };
 MODULE_DEVICE_TABLE(pci, lnw_gpio_ids);
@@ -167,17 +186,17 @@ MODULE_DEVICE_TABLE(pci, lnw_gpio_ids);
 static void lnw_irq_handler(unsigned irq, struct irq_desc *desc)
 {
         struct lnw_gpio *lnw = (struct lnw_gpio *)get_irq_data(irq);
-        u32 reg, gpio;
+        u32 base, gpio;
         void __iomem *gedr;
         u32 gedr_v;
 
         /* check GPIO controller to check which pin triggered the interrupt */
-        for (reg = 0; reg < lnw->chip.ngpio / 32; reg++) {
-                gedr = (void __iomem *)(&lnw->reg_base->GEDR[reg]);
+        for (base = 0; base < lnw->chip.ngpio; base += 32) {
+                gedr = gpio_reg(&lnw->chip, base, GEDR);
                 gedr_v = readl(gedr);
                 if (!gedr_v)
                         continue;
-                for (gpio = reg*32; gpio < reg*32+32; gpio++)
+                for (gpio = base; gpio < base + 32; gpio++)
                         if (gedr_v & BIT(gpio % 32)) {
                                 pr_debug("pin %d triggered\n", gpio);
                                 generic_handle_irq(lnw->irq_base + gpio);
@@ -245,7 +264,7 @@ static int __devinit lnw_gpio_probe(struct pci_dev *pdev,
         lnw->chip.set = lnw_gpio_set;
         lnw->chip.to_irq = lnw_gpio_to_irq;
         lnw->chip.base = gpio_base;
-        lnw->chip.ngpio = 64;
+        lnw->chip.ngpio = id->driver_data;
         lnw->chip.can_sleep = 0;
         pci_set_drvdata(pdev, lnw);
         retval = gpiochip_add(&lnw->chip);
diff --git a/drivers/gpio/max732x.c b/drivers/gpio/max732x.c
index f7868243af89..9cad60f9e962 100644
--- a/drivers/gpio/max732x.c
+++ b/drivers/gpio/max732x.c
@@ -17,7 +17,8 @@
 #include <linux/slab.h>
 #include <linux/string.h>
 #include <linux/gpio.h>
-
+#include <linux/interrupt.h>
+#include <linux/irq.h>
 #include <linux/i2c.h>
 #include <linux/i2c/max732x.h>
 
@@ -31,7 +32,8 @@
  *   - Open Drain I/O
  *
  * designated by 'O', 'I' and 'P' individually according to MAXIM's
- * datasheets.
+ * datasheets. 'I' and 'P' ports are interrupt capables, some with
+ * a dedicated interrupt mask.
  *
  * There are two groups of I/O ports, each group usually includes
  * up to 8 I/O ports, and is accessed by a specific I2C address:
@@ -44,7 +46,8 @@
  *
  * Within each group of ports, there are five known combinations of
  * I/O ports: 4I4O, 4P4O, 8I, 8P, 8O, see the definitions below for
- * the detailed organization of these ports.
+ * the detailed organization of these ports. Only Goup A is interrupt
+ * capable.
  *
  * GPIO numbers start from 'gpio_base + 0' to 'gpio_base + 8/16',
  * and GPIOs from GROUP_A are numbered before those from GROUP_B
@@ -68,16 +71,47 @@
 #define GROUP_A(x)      ((x) & 0xffff)  /* I2C Addr: 0b'110xxxx */
 #define GROUP_B(x)      ((x) << 16)     /* I2C Addr: 0b'101xxxx */
 
+#define INT_NONE        0x0     /* No interrupt capability */
+#define INT_NO_MASK     0x1     /* Has interrupts, no mask */
+#define INT_INDEP_MASK  0x2     /* Has interrupts, independent mask */
+#define INT_MERGED_MASK 0x3     /* Has interrupts, merged mask */
+
+#define INT_CAPS(x)     (((uint64_t)(x)) << 32)
+
+enum {
+        MAX7319,
+        MAX7320,
+        MAX7321,
+        MAX7322,
+        MAX7323,
+        MAX7324,
+        MAX7325,
+        MAX7326,
+        MAX7327,
+};
+
+static uint64_t max732x_features[] = {
+        [MAX7319] = GROUP_A(IO_8I) | INT_CAPS(INT_MERGED_MASK),
+        [MAX7320] = GROUP_B(IO_8O),
+        [MAX7321] = GROUP_A(IO_8P) | INT_CAPS(INT_NO_MASK),
+        [MAX7322] = GROUP_A(IO_4I4O) | INT_CAPS(INT_MERGED_MASK),
+        [MAX7323] = GROUP_A(IO_4P4O) | INT_CAPS(INT_INDEP_MASK),
+        [MAX7324] = GROUP_A(IO_8I) | GROUP_B(IO_8O) | INT_CAPS(INT_MERGED_MASK),
+        [MAX7325] = GROUP_A(IO_8P) | GROUP_B(IO_8O) | INT_CAPS(INT_NO_MASK),
+        [MAX7326] = GROUP_A(IO_4I4O) | GROUP_B(IO_8O) | INT_CAPS(INT_MERGED_MASK),
+        [MAX7327] = GROUP_A(IO_4P4O) | GROUP_B(IO_8O) | INT_CAPS(INT_NO_MASK),
+};
+
 static const struct i2c_device_id max732x_id[] = {
-        { "max7319", GROUP_A(IO_8I) },
-        { "max7320", GROUP_B(IO_8O) },
-        { "max7321", GROUP_A(IO_8P) },
-        { "max7322", GROUP_A(IO_4I4O) },
-        { "max7323", GROUP_A(IO_4P4O) },
-        { "max7324", GROUP_A(IO_8I) | GROUP_B(IO_8O) },
-        { "max7325", GROUP_A(IO_8P) | GROUP_B(IO_8O) },
-        { "max7326", GROUP_A(IO_4I4O) | GROUP_B(IO_8O) },
-        { "max7327", GROUP_A(IO_4P4O) | GROUP_B(IO_8O) },
+        { "max7319", MAX7319 },
+        { "max7320", MAX7320 },
+        { "max7321", MAX7321 },
+        { "max7322", MAX7322 },
+        { "max7323", MAX7323 },
+        { "max7324", MAX7324 },
+        { "max7325", MAX7325 },
+        { "max7326", MAX7326 },
+        { "max7327", MAX7327 },
         { },
 };
 MODULE_DEVICE_TABLE(i2c, max732x_id);
@@ -96,9 +130,19 @@ struct max732x_chip {
 
         struct mutex    lock;
         uint8_t         reg_out[2];
+
+#ifdef CONFIG_GPIO_MAX732X_IRQ
+        struct mutex    irq_lock;
+        int             irq_base;
+        uint8_t         irq_mask;
+        uint8_t         irq_mask_cur;
+        uint8_t         irq_trig_raise;
+        uint8_t         irq_trig_fall;
+        uint8_t         irq_features;
+#endif
 };
 
-static int max732x_write(struct max732x_chip *chip, int group_a, uint8_t val)
+static int max732x_writeb(struct max732x_chip *chip, int group_a, uint8_t val)
 {
         struct i2c_client *client;
         int ret;
@@ -113,7 +157,7 @@ static int max732x_write(struct max732x_chip *chip, int group_a, uint8_t val)
         return 0;
 }
 
-static int max732x_read(struct max732x_chip *chip, int group_a, uint8_t *val)
+static int max732x_readb(struct max732x_chip *chip, int group_a, uint8_t *val)
 {
         struct i2c_client *client;
         int ret;
@@ -142,7 +186,7 @@ static int max732x_gpio_get_value(struct gpio_chip *gc, unsigned off)
 
         chip = container_of(gc, struct max732x_chip, gpio_chip);
 
-        ret = max732x_read(chip, is_group_a(chip, off), &reg_val);
+        ret = max732x_readb(chip, is_group_a(chip, off), &reg_val);
         if (ret < 0)
                 return 0;
 
@@ -162,7 +206,7 @@ static void max732x_gpio_set_value(struct gpio_chip *gc, unsigned off, int val)
         reg_out = (off > 7) ? chip->reg_out[1] : chip->reg_out[0];
         reg_out = (val) ? reg_out | mask : reg_out & ~mask;
 
-        ret = max732x_write(chip, is_group_a(chip, off), reg_out);
+        ret = max732x_writeb(chip, is_group_a(chip, off), reg_out);
         if (ret < 0)
                 goto out;
 
@@ -188,6 +232,13 @@ static int max732x_gpio_direction_input(struct gpio_chip *gc, unsigned off)
                 return -EACCES;
         }
 
+        /*
+         * Open-drain pins must be set to high impedance (which is
+         * equivalent to output-high) to be turned into an input.
+         */
+        if ((mask & chip->dir_output))
+                max732x_gpio_set_value(gc, off, 1);
+
         return 0;
 }
 
@@ -209,12 +260,278 @@ static int max732x_gpio_direction_output(struct gpio_chip *gc,
         return 0;
 }
 
+#ifdef CONFIG_GPIO_MAX732X_IRQ
+static int max732x_writew(struct max732x_chip *chip, uint16_t val)
+{
+        int ret;
+
+        val = cpu_to_le16(val);
+
+        ret = i2c_master_send(chip->client_group_a, (char *)&val, 2);
+        if (ret < 0) {
+                dev_err(&chip->client_group_a->dev, "failed writing\n");
+                return ret;
+        }
+
+        return 0;
+}
+
+static int max732x_readw(struct max732x_chip *chip, uint16_t *val)
+{
+        int ret;
+
+        ret = i2c_master_recv(chip->client_group_a, (char *)val, 2);
+        if (ret < 0) {
+                dev_err(&chip->client_group_a->dev, "failed reading\n");
+                return ret;
+        }
+
+        *val = le16_to_cpu(*val);
+        return 0;
+}
+
+static void max732x_irq_update_mask(struct max732x_chip *chip)
+{
+        uint16_t msg;
+
+        if (chip->irq_mask == chip->irq_mask_cur)
+                return;
+
+        chip->irq_mask = chip->irq_mask_cur;
+
+        if (chip->irq_features == INT_NO_MASK)
+                return;
+
+        mutex_lock(&chip->lock);
+
+        switch (chip->irq_features) {
+        case INT_INDEP_MASK:
+                msg = (chip->irq_mask << 8) | chip->reg_out[0];
+                max732x_writew(chip, msg);
+                break;
+
+        case INT_MERGED_MASK:
+                msg = chip->irq_mask | chip->reg_out[0];
+                max732x_writeb(chip, 1, (uint8_t)msg);
+                break;
+        }
+
+        mutex_unlock(&chip->lock);
+}
+
+static int max732x_gpio_to_irq(struct gpio_chip *gc, unsigned off)
+{
+        struct max732x_chip *chip;
+
+        chip = container_of(gc, struct max732x_chip, gpio_chip);
+        return chip->irq_base + off;
+}
+
+static void max732x_irq_mask(unsigned int irq)
+{
+        struct max732x_chip *chip = get_irq_chip_data(irq);
+
+        chip->irq_mask_cur &= ~(1 << (irq - chip->irq_base));
+}
+
+static void max732x_irq_unmask(unsigned int irq)
+{
+        struct max732x_chip *chip = get_irq_chip_data(irq);
+
+        chip->irq_mask_cur |= 1 << (irq - chip->irq_base);
+}
+
+static void max732x_irq_bus_lock(unsigned int irq)
+{
+        struct max732x_chip *chip = get_irq_chip_data(irq);
+
+        mutex_lock(&chip->irq_lock);
+        chip->irq_mask_cur = chip->irq_mask;
+}
+
+static void max732x_irq_bus_sync_unlock(unsigned int irq)
+{
+        struct max732x_chip *chip = get_irq_chip_data(irq);
+
+        max732x_irq_update_mask(chip);
+        mutex_unlock(&chip->irq_lock);
+}
+
+static int max732x_irq_set_type(unsigned int irq, unsigned int type)
+{
+        struct max732x_chip *chip = get_irq_chip_data(irq);
+        uint16_t off = irq - chip->irq_base;
+        uint16_t mask = 1 << off;
+
+        if (!(mask & chip->dir_input)) {
+                dev_dbg(&chip->client->dev, "%s port %d is output only\n",
+                        chip->client->name, off);
+                return -EACCES;
+        }
+
+        if (!(type & IRQ_TYPE_EDGE_BOTH)) {
+                dev_err(&chip->client->dev, "irq %d: unsupported type %d\n",
+                        irq, type);
+                return -EINVAL;
+        }
+
+        if (type & IRQ_TYPE_EDGE_FALLING)
+                chip->irq_trig_fall |= mask;
+        else
+                chip->irq_trig_fall &= ~mask;
+
+        if (type & IRQ_TYPE_EDGE_RISING)
+                chip->irq_trig_raise |= mask;
+        else
+                chip->irq_trig_raise &= ~mask;
+
+        return max732x_gpio_direction_input(&chip->gpio_chip, off);
+}
+
+static struct irq_chip max732x_irq_chip = {
+        .name                   = "max732x",
+        .mask                   = max732x_irq_mask,
+        .unmask                 = max732x_irq_unmask,
+        .bus_lock               = max732x_irq_bus_lock,
+        .bus_sync_unlock        = max732x_irq_bus_sync_unlock,
+        .set_type               = max732x_irq_set_type,
+};
+
+static uint8_t max732x_irq_pending(struct max732x_chip *chip)
+{
+        uint8_t cur_stat;
+        uint8_t old_stat;
+        uint8_t trigger;
+        uint8_t pending;
+        uint16_t status;
+        int ret;
+
+        ret = max732x_readw(chip, &status);
+        if (ret)
+                return 0;
+
+        trigger = status >> 8;
+        trigger &= chip->irq_mask;
+
+        if (!trigger)
+                return 0;
+
+        cur_stat = status & 0xFF;
+        cur_stat &= chip->irq_mask;
+
+        old_stat = cur_stat ^ trigger;
+
+        pending = (old_stat & chip->irq_trig_fall) |
+                  (cur_stat & chip->irq_trig_raise);
+        pending &= trigger;
+
+        return pending;
+}
+
+static irqreturn_t max732x_irq_handler(int irq, void *devid)
+{
+        struct max732x_chip *chip = devid;
+        uint8_t pending;
+        uint8_t level;
+
+        pending = max732x_irq_pending(chip);
+
+        if (!pending)
+                return IRQ_HANDLED;
+
+        do {
+                level = __ffs(pending);
+                handle_nested_irq(level + chip->irq_base);
+
+                pending &= ~(1 << level);
+        } while (pending);
+
+        return IRQ_HANDLED;
+}
+
+static int max732x_irq_setup(struct max732x_chip *chip,
+                             const struct i2c_device_id *id)
+{
+        struct i2c_client *client = chip->client;
+        struct max732x_platform_data *pdata = client->dev.platform_data;
+        int has_irq = max732x_features[id->driver_data] >> 32;
+        int ret;
+
+        if (pdata->irq_base && has_irq != INT_NONE) {
+                int lvl;
+
+                chip->irq_base = pdata->irq_base;
+                chip->irq_features = has_irq;
+                mutex_init(&chip->irq_lock);
+
+                for (lvl = 0; lvl < chip->gpio_chip.ngpio; lvl++) {
+                        int irq = lvl + chip->irq_base;
+
+                        if (!(chip->dir_input & (1 << lvl)))
+                                continue;
+
+                        set_irq_chip_data(irq, chip);
+                        set_irq_chip_and_handler(irq, &max732x_irq_chip,
+                                                 handle_edge_irq);
+                        set_irq_nested_thread(irq, 1);
+#ifdef CONFIG_ARM
+                        set_irq_flags(irq, IRQF_VALID);
+#else
+                        set_irq_noprobe(irq);
+#endif
+                }
+
+                ret = request_threaded_irq(client->irq,
+                                           NULL,
+                                           max732x_irq_handler,
+                                           IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+                                           dev_name(&client->dev), chip);
+                if (ret) {
+                        dev_err(&client->dev, "failed to request irq %d\n",
+                                client->irq);
+                        goto out_failed;
+                }
+
+                chip->gpio_chip.to_irq = max732x_gpio_to_irq;
+        }
+
+        return 0;
+
+out_failed:
+        chip->irq_base = 0;
+        return ret;
+}
+
+static void max732x_irq_teardown(struct max732x_chip *chip)
+{
+        if (chip->irq_base)
+                free_irq(chip->client->irq, chip);
+}
+#else /* CONFIG_GPIO_MAX732X_IRQ */
+static int max732x_irq_setup(struct max732x_chip *chip,
+                             const struct i2c_device_id *id)
+{
+        struct i2c_client *client = chip->client;
+        struct max732x_platform_data *pdata = client->dev.platform_data;
+        int has_irq = max732x_features[id->driver_data] >> 32;
+
+        if (pdata->irq_base && has_irq != INT_NONE)
+                dev_warn(&client->dev, "interrupt support not compiled in\n");
+
+        return 0;
+}
+
+static void max732x_irq_teardown(struct max732x_chip *chip)
+{
+}
+#endif
+
 static int __devinit max732x_setup_gpio(struct max732x_chip *chip,
                                         const struct i2c_device_id *id,
                                         unsigned gpio_start)
 {
         struct gpio_chip *gc = &chip->gpio_chip;
-        uint32_t id_data = id->driver_data;
+        uint32_t id_data = (uint32_t)max732x_features[id->driver_data];
         int i, port = 0;
 
         for (i = 0; i < 16; i++, id_data >>= 2) {
@@ -285,14 +602,14 @@ static int __devinit max732x_probe(struct i2c_client *client,
         switch (client->addr & 0x70) {
         case 0x60:
                 chip->client_group_a = client;
-                if (nr_port > 7) {
+                if (nr_port > 8) {
                         c = i2c_new_dummy(client->adapter, addr_b);
                         chip->client_group_b = chip->client_dummy = c;
                 }
                 break;
         case 0x50:
                 chip->client_group_b = client;
-                if (nr_port > 7) {
+                if (nr_port > 8) {
                         c = i2c_new_dummy(client->adapter, addr_a);
                         chip->client_group_a = chip->client_dummy = c;
                 }
@@ -306,9 +623,13 @@ static int __devinit max732x_probe(struct i2c_client *client,
 
         mutex_init(&chip->lock);
 
-        max732x_read(chip, is_group_a(chip, 0), &chip->reg_out[0]);
-        if (nr_port > 7)
-                max732x_read(chip, is_group_a(chip, 8), &chip->reg_out[1]);
+        max732x_readb(chip, is_group_a(chip, 0), &chip->reg_out[0]);
+        if (nr_port > 8)
+                max732x_readb(chip, is_group_a(chip, 8), &chip->reg_out[1]);
+
+        ret = max732x_irq_setup(chip, id);
+        if (ret)
+                goto out_failed;
 
         ret = gpiochip_add(&chip->gpio_chip);
         if (ret)
@@ -325,6 +646,7 @@ static int __devinit max732x_probe(struct i2c_client *client,
         return 0;
 
 out_failed:
+        max732x_irq_teardown(chip);
         kfree(chip);
         return ret;
 }
@@ -352,6 +674,8 @@ static int __devexit max732x_remove(struct i2c_client *client)
                 return ret;
         }
 
+        max732x_irq_teardown(chip);
+
         /* unregister any dummy i2c_client */
         if (chip->client_dummy)
                 i2c_unregister_device(chip->client_dummy);
diff --git a/drivers/gpio/pca953x.c b/drivers/gpio/pca953x.c
index f156ab3bb6ed..a2b12aa1f2b9 100644
--- a/drivers/gpio/pca953x.c
+++ b/drivers/gpio/pca953x.c
@@ -73,7 +73,7 @@ struct pca953x_chip {
         struct i2c_client *client;
         struct pca953x_platform_data *dyn_pdata;
         struct gpio_chip gpio_chip;
-        char **names;
+        const char *const *names;
 };
 
 static int pca953x_write_reg(struct pca953x_chip *chip, int reg, uint16_t val)
diff --git a/drivers/gpio/pl061.c b/drivers/gpio/pl061.c
index 105701a1f05b..ee568c8fcbd0 100644
--- a/drivers/gpio/pl061.c
+++ b/drivers/gpio/pl061.c
@@ -164,7 +164,7 @@ static int pl061_irq_type(unsigned irq, unsigned trigger)
         unsigned long flags;
         u8 gpiois, gpioibe, gpioiev;
 
-        if (offset < 0 || offset > PL061_GPIO_NR)
+        if (offset < 0 || offset >= PL061_GPIO_NR)
                 return -EINVAL;
 
         spin_lock_irqsave(&chip->irq_lock, flags);
diff --git a/drivers/hid/hid-debug.c b/drivers/hid/hid-debug.c
index 56f314fbd4f9..c94026768570 100644
--- a/drivers/hid/hid-debug.c
+++ b/drivers/hid/hid-debug.c
@@ -811,7 +811,7 @@ static const char *relatives[REL_MAX + 1] = {
         [REL_WHEEL] = "Wheel",          [REL_MISC] = "Misc",
 };
 
-static const char *absolutes[ABS_MAX + 1] = {
+static const char *absolutes[ABS_CNT] = {
         [ABS_X] = "X",                  [ABS_Y] = "Y",
         [ABS_Z] = "Z",                  [ABS_RX] = "Rx",
         [ABS_RY] = "Ry",                [ABS_RZ] = "Rz",
diff --git a/drivers/ide/gayle.c b/drivers/ide/gayle.c
index b9e517de6a82..3feaa26410be 100644
--- a/drivers/ide/gayle.c
+++ b/drivers/ide/gayle.c
@@ -16,6 +16,7 @@
 #include <linux/init.h>
 #include <linux/zorro.h>
 #include <linux/module.h>
+#include <linux/platform_device.h>
 
 #include <asm/setup.h>
 #include <asm/amigahw.h>
@@ -24,15 +25,6 @@
 
 
     /*
-     *  Bases of the IDE interfaces
-     */
-
-#define GAYLE_BASE_4000 0xdd2020        /* A4000/A4000T */
-#define GAYLE_BASE_1200 0xda0000        /* A1200/A600 and E-Matrix 530 */
-
-#define GAYLE_IDEREG_SIZE       0x2000
-
-    /*
      *  Offsets from one of the above bases
      */
 
@@ -68,20 +60,20 @@ MODULE_PARM_DESC(doubler, "enable support for IDE doublers");
 
 static int gayle_test_irq(ide_hwif_t *hwif)
 {
-    unsigned char ch;
+        unsigned char ch;
 
-    ch = z_readb(hwif->io_ports.irq_addr);
-    if (!(ch & GAYLE_IRQ_IDE))
-        return 0;
-    return 1;
+        ch = z_readb(hwif->io_ports.irq_addr);
+        if (!(ch & GAYLE_IRQ_IDE))
+                return 0;
+        return 1;
 }
 
 static void gayle_a1200_clear_irq(ide_drive_t *drive)
 {
-    ide_hwif_t *hwif = drive->hwif;
+        ide_hwif_t *hwif = drive->hwif;
 
-    (void)z_readb(hwif->io_ports.status_addr);
-    z_writeb(0x7c, hwif->io_ports.irq_addr);
+        (void)z_readb(hwif->io_ports.status_addr);
+        z_writeb(0x7c, hwif->io_ports.irq_addr);
 }
 
 static void __init gayle_setup_ports(struct ide_hw *hw, unsigned long base,
@@ -122,64 +114,89 @@ static const struct ide_port_info gayle_port_info = {
      *  Probe for a Gayle IDE interface (and optionally for an IDE doubler)
      */
 
-static int __init gayle_init(void)
+static int __init amiga_gayle_ide_probe(struct platform_device *pdev)
 {
-    unsigned long phys_base, res_start, res_n;
-    unsigned long base, ctrlport, irqport;
-    int a4000, i, rc;
-    struct ide_hw hw[GAYLE_NUM_HWIFS], *hws[GAYLE_NUM_HWIFS];
-    struct ide_port_info d = gayle_port_info;
-
-    if (!MACH_IS_AMIGA)
-        return -ENODEV;
-
-    if ((a4000 = AMIGAHW_PRESENT(A4000_IDE)) || AMIGAHW_PRESENT(A1200_IDE))
-        goto found;
-
-#ifdef CONFIG_ZORRO
-    if (zorro_find_device(ZORRO_PROD_MTEC_VIPER_MK_V_E_MATRIX_530_SCSI_IDE,
-                          NULL))
-        goto found;
-#endif
-    return -ENODEV;
-
-found:
-        printk(KERN_INFO "ide: Gayle IDE controller (A%d style%s)\n",
-                         a4000 ? 4000 : 1200,
-                         ide_doubler ? ", IDE doubler" : "");
-
-        if (a4000) {
-            phys_base = GAYLE_BASE_4000;
-            irqport = (unsigned long)ZTWO_VADDR(GAYLE_IRQ_4000);
-            d.port_ops = &gayle_a4000_port_ops;
-        } else {
-            phys_base = GAYLE_BASE_1200;
-            irqport = (unsigned long)ZTWO_VADDR(GAYLE_IRQ_1200);
-            d.port_ops = &gayle_a1200_port_ops;
+        struct resource *res;
+        struct gayle_ide_platform_data *pdata;
+        unsigned long base, ctrlport, irqport;
+        unsigned int i;
+        int error;
+        struct ide_hw hw[GAYLE_NUM_HWIFS], *hws[GAYLE_NUM_HWIFS];
+        struct ide_port_info d = gayle_port_info;
+        struct ide_host *host;
+
+        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+        if (!res)
+                return -ENODEV;
+
+        if (!request_mem_region(res->start, resource_size(res), "IDE"))
+                return -EBUSY;
+
+        pdata = pdev->dev.platform_data;
+        pr_info("ide: Gayle IDE controller (A%u style%s)\n",
+                pdata->explicit_ack ? 1200 : 4000,
+                ide_doubler ? ", IDE doubler" : "");
+
+        base = (unsigned long)ZTWO_VADDR(pdata->base);
+        ctrlport = 0;
+        irqport = (unsigned long)ZTWO_VADDR(pdata->irqport);
+        if (pdata->explicit_ack)
+                d.port_ops = &gayle_a1200_port_ops;
+        else
+                d.port_ops = &gayle_a4000_port_ops;
+
+        for (i = 0; i < GAYLE_NUM_PROBE_HWIFS; i++, base += GAYLE_NEXT_PORT) {
+                if (GAYLE_HAS_CONTROL_REG)
+                        ctrlport = base + GAYLE_CONTROL;
+
+                gayle_setup_ports(&hw[i], base, ctrlport, irqport);
+                hws[i] = &hw[i];
         }
 
-        res_start = ((unsigned long)phys_base) & ~(GAYLE_NEXT_PORT-1);
-        res_n = GAYLE_IDEREG_SIZE;
+        error = ide_host_add(&d, hws, i, &host);
+        if (error)
+                goto out;
 
-        if (!request_mem_region(res_start, res_n, "IDE"))
-                return -EBUSY;
+        platform_set_drvdata(pdev, host);
+        return 0;
 
-    for (i = 0; i < GAYLE_NUM_PROBE_HWIFS; i++) {
-        base = (unsigned long)ZTWO_VADDR(phys_base + i * GAYLE_NEXT_PORT);
-        ctrlport = GAYLE_HAS_CONTROL_REG ? (base + GAYLE_CONTROL) : 0;
+out:
+        release_mem_region(res->start, resource_size(res));
+        return error;
+}
+
+static int __exit amiga_gayle_ide_remove(struct platform_device *pdev)
+{
+        struct ide_host *host = platform_get_drvdata(pdev);
+        struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+        ide_host_remove(host);
+        release_mem_region(res->start, resource_size(res));
+        return 0;
+}
 
-        gayle_setup_ports(&hw[i], base, ctrlport, irqport);
+static struct platform_driver amiga_gayle_ide_driver = {
+        .remove = __exit_p(amiga_gayle_ide_remove),
+        .driver   = {
+                .name   = "amiga-gayle-ide",
+                .owner  = THIS_MODULE,
+        },
+};
 
-        hws[i] = &hw[i];
-    }
+static int __init amiga_gayle_ide_init(void)
+{
+        return platform_driver_probe(&amiga_gayle_ide_driver,
+                                     amiga_gayle_ide_probe);
+}
 
-    rc = ide_host_add(&d, hws, i, NULL);
-    if (rc)
-        release_mem_region(res_start, res_n);
+module_init(amiga_gayle_ide_init);
 
-    return rc;
+static void __exit amiga_gayle_ide_exit(void)
+{
+        platform_driver_unregister(&amiga_gayle_ide_driver);
 }
 
-module_init(gayle_init);
+module_exit(amiga_gayle_ide_exit);
 
 MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:amiga-gayle-ide");
diff --git a/drivers/ieee1394/dv1394.c b/drivers/ieee1394/dv1394.c
index 9fd4a0d3206e..adaefabc40e9 100644
--- a/drivers/ieee1394/dv1394.c
+++ b/drivers/ieee1394/dv1394.c
@@ -1824,7 +1824,7 @@ static int dv1394_open(struct inode *inode, struct file *file)
                "and will not be available in the new firewire driver stack. "
                "Try libraw1394 based programs instead.\n", current->comm);
 
-        return 0;
+        return nonseekable_open(inode, file);
 }
 
 
@@ -2153,17 +2153,18 @@ static struct cdev dv1394_cdev;
 static const struct file_operations dv1394_fops=
 {
         .owner =        THIS_MODULE,
-        .poll =         dv1394_poll,
+        .poll =         dv1394_poll,
         .unlocked_ioctl = dv1394_ioctl,
 #ifdef CONFIG_COMPAT
         .compat_ioctl = dv1394_compat_ioctl,
 #endif
         .mmap =         dv1394_mmap,
         .open =         dv1394_open,
-        .write =        dv1394_write,
-        .read =         dv1394_read,
+        .write =        dv1394_write,
+        .read =         dv1394_read,
         .release =      dv1394_release,
-        .fasync =       dv1394_fasync,
+        .fasync =       dv1394_fasync,
+        .llseek =       no_llseek,
 };
 
 
diff --git a/drivers/ieee1394/raw1394.c b/drivers/ieee1394/raw1394.c
index 8aa56ac07e29..b563d5e9fa2e 100644
--- a/drivers/ieee1394/raw1394.c
+++ b/drivers/ieee1394/raw1394.c
@@ -2834,7 +2834,7 @@ static int raw1394_open(struct inode *inode, struct file *file)
 
         file->private_data = fi;
 
-        return 0;
+        return nonseekable_open(inode, file);
 }
 
 static int raw1394_release(struct inode *inode, struct file *file)
@@ -3035,6 +3035,7 @@ static const struct file_operations raw1394_fops = {
         .poll = raw1394_poll,
         .open = raw1394_open,
         .release = raw1394_release,
+        .llseek = no_llseek,
 };
 
 static int __init init_raw1394(void)
diff --git a/drivers/ieee1394/video1394.c b/drivers/ieee1394/video1394.c
index 949064a05675..a42bd6893bcf 100644
--- a/drivers/ieee1394/video1394.c
+++ b/drivers/ieee1394/video1394.c
@@ -1239,7 +1239,7 @@ static int video1394_open(struct inode *inode, struct file *file)
         ctx->current_ctx = NULL;
         file->private_data = ctx;
 
-        return 0;
+        return nonseekable_open(inode, file);
 }
 
 static int video1394_release(struct inode *inode, struct file *file)
@@ -1287,7 +1287,8 @@ static const struct file_operations video1394_fops=
         .poll =         video1394_poll,
         .mmap =         video1394_mmap,
         .open =         video1394_open,
-        .release =      video1394_release
+        .release =      video1394_release,
+        .llseek =       no_llseek,
 };
 
 /*** HOTPLUG STUFF **********************************************************/
diff --git a/drivers/infiniband/hw/ehca/ehca_irq.c b/drivers/infiniband/hw/ehca/ehca_irq.c
index 07cae552cafb..e571e60ecb88 100644
--- a/drivers/infiniband/hw/ehca/ehca_irq.c
+++ b/drivers/infiniband/hw/ehca/ehca_irq.c
@@ -847,7 +847,7 @@ static int __cpuinit comp_pool_callback(struct notifier_block *nfb,
                 ehca_gen_dbg("CPU: %x (CPU_PREPARE)", cpu);
                 if (!create_comp_task(pool, cpu)) {
                         ehca_gen_err("Can't create comp_task for cpu: %x", cpu);
-                        return NOTIFY_BAD;
+                        return notifier_from_errno(-ENOMEM);
                 }
                 break;
         case CPU_UP_CANCELED:
diff --git a/drivers/input/joydev.c b/drivers/input/joydev.c
index 423e0e6031ab..34157bb97ed6 100644
--- a/drivers/input/joydev.c
+++ b/drivers/input/joydev.c
@@ -47,15 +47,15 @@ struct joydev {
         struct mutex mutex;
         struct device dev;
 
-        struct js_corr corr[ABS_MAX + 1];
+        struct js_corr corr[ABS_CNT];
         struct JS_DATA_SAVE_TYPE glue;
         int nabs;
         int nkey;
         __u16 keymap[KEY_MAX - BTN_MISC + 1];
         __u16 keypam[KEY_MAX - BTN_MISC + 1];
-        __u8 absmap[ABS_MAX + 1];
-        __u8 abspam[ABS_MAX + 1];
-        __s16 abs[ABS_MAX + 1];
+        __u8 absmap[ABS_CNT];
+        __u8 abspam[ABS_CNT];
+        __s16 abs[ABS_CNT];
 };
 
 struct joydev_client {
@@ -826,7 +826,7 @@ static int joydev_connect(struct input_handler *handler, struct input_dev *dev,
         joydev->handle.handler = handler;
         joydev->handle.private = joydev;
 
-        for (i = 0; i < ABS_MAX + 1; i++)
+        for (i = 0; i < ABS_CNT; i++)
                 if (test_bit(i, dev->absbit)) {
                         joydev->absmap[i] = joydev->nabs;
                         joydev->abspam[joydev->nabs] = i;
diff --git a/drivers/input/keyboard/amikbd.c b/drivers/input/keyboard/amikbd.c
index 35149ec455a9..79172af164f2 100644
--- a/drivers/input/keyboard/amikbd.c
+++ b/drivers/input/keyboard/amikbd.c
@@ -35,6 +35,7 @@
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 #include <linux/keyboard.h>
+#include <linux/platform_device.h>
 
 #include <asm/amigaints.h>
 #include <asm/amigahw.h>
@@ -154,10 +155,9 @@ static const char *amikbd_messages[8] = {
         [7] = KERN_WARNING "amikbd: keyboard interrupt\n"
 };
 
-static struct input_dev *amikbd_dev;
-
-static irqreturn_t amikbd_interrupt(int irq, void *dummy)
+static irqreturn_t amikbd_interrupt(int irq, void *data)
 {
+        struct input_dev *dev = data;
         unsigned char scancode, down;
 
         scancode = ~ciaa.sdr;           /* get and invert scancode (keyboard is active low) */
@@ -170,47 +170,42 @@ static irqreturn_t amikbd_interrupt(int irq, void *dummy)
 
         if (scancode < 0x78) {          /* scancodes < 0x78 are keys */
                 if (scancode == 98) {   /* CapsLock is a toggle switch key on Amiga */
-                        input_report_key(amikbd_dev, scancode, 1);
-                        input_report_key(amikbd_dev, scancode, 0);
+                        input_report_key(dev, scancode, 1);
+                        input_report_key(dev, scancode, 0);
                 } else {
-                        input_report_key(amikbd_dev, scancode, down);
+                        input_report_key(dev, scancode, down);
                 }
 
-                input_sync(amikbd_dev);
+                input_sync(dev);
         } else                          /* scancodes >= 0x78 are error codes */
                 printk(amikbd_messages[scancode - 0x78]);
 
         return IRQ_HANDLED;
 }
 
-static int __init amikbd_init(void)
+static int __init amikbd_probe(struct platform_device *pdev)
 {
+        struct input_dev *dev;
         int i, j, err;
 
-        if (!AMIGAHW_PRESENT(AMI_KEYBOARD))
-                return -ENODEV;
-
-        if (!request_mem_region(CIAA_PHYSADDR-1+0xb00, 0x100, "amikeyb"))
-                return -EBUSY;
-
-        amikbd_dev = input_allocate_device();
-        if (!amikbd_dev) {
-                printk(KERN_ERR "amikbd: not enough memory for input device\n");
-                err = -ENOMEM;
-                goto fail1;
+        dev = input_allocate_device();
+        if (!dev) {
+                dev_err(&pdev->dev, "Not enough memory for input device\n");
+                return -ENOMEM;
         }
 
-        amikbd_dev->name = "Amiga Keyboard";
-        amikbd_dev->phys = "amikbd/input0";
-        amikbd_dev->id.bustype = BUS_AMIGA;
-        amikbd_dev->id.vendor = 0x0001;
-        amikbd_dev->id.product = 0x0001;
-        amikbd_dev->id.version = 0x0100;
+        dev->name = pdev->name;
+        dev->phys = "amikbd/input0";
+        dev->id.bustype = BUS_AMIGA;
+        dev->id.vendor = 0x0001;
+        dev->id.product = 0x0001;
+        dev->id.version = 0x0100;
+        dev->dev.parent = &pdev->dev;
 
-        amikbd_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
+        dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
 
         for (i = 0; i < 0x78; i++)
-                set_bit(i, amikbd_dev->keybit);
+                set_bit(i, dev->keybit);
 
         for (i = 0; i < MAX_NR_KEYMAPS; i++) {
                 static u_short temp_map[NR_KEYS] __initdata;
@@ -229,30 +224,54 @@ static int __init amikbd_init(void)
                 memcpy(key_maps[i], temp_map, sizeof(temp_map));
         }
         ciaa.cra &= ~0x41;       /* serial data in, turn off TA */
-        if (request_irq(IRQ_AMIGA_CIAA_SP, amikbd_interrupt, 0, "amikbd",
-                        amikbd_interrupt)) {
-                err = -EBUSY;
+        err = request_irq(IRQ_AMIGA_CIAA_SP, amikbd_interrupt, 0, "amikbd",
+                          dev);
+        if (err)
                 goto fail2;
-        }
 
-        err = input_register_device(amikbd_dev);
+        err = input_register_device(dev);
         if (err)
                 goto fail3;
 
+        platform_set_drvdata(pdev, dev);
+
         return 0;
 
- fail3: free_irq(IRQ_AMIGA_CIAA_SP, amikbd_interrupt);
- fail2: input_free_device(amikbd_dev);
- fail1: release_mem_region(CIAA_PHYSADDR - 1 + 0xb00, 0x100);
+ fail3: free_irq(IRQ_AMIGA_CIAA_SP, dev);
+ fail2: input_free_device(dev);
         return err;
 }
 
-static void __exit amikbd_exit(void)
+static int __exit amikbd_remove(struct platform_device *pdev)
+{
+        struct input_dev *dev = platform_get_drvdata(pdev);
+
+        platform_set_drvdata(pdev, NULL);
+        free_irq(IRQ_AMIGA_CIAA_SP, dev);
+        input_unregister_device(dev);
+        return 0;
+}
+
+static struct platform_driver amikbd_driver = {
+        .remove = __exit_p(amikbd_remove),
+        .driver   = {
+                .name   = "amiga-keyboard",
+                .owner  = THIS_MODULE,
+        },
+};
+
+static int __init amikbd_init(void)
 {
-        free_irq(IRQ_AMIGA_CIAA_SP, amikbd_interrupt);
-        input_unregister_device(amikbd_dev);
-        release_mem_region(CIAA_PHYSADDR - 1 + 0xb00, 0x100);
+        return platform_driver_probe(&amikbd_driver, amikbd_probe);
 }
 
 module_init(amikbd_init);
+
+static void __exit amikbd_exit(void)
+{
+        platform_driver_unregister(&amikbd_driver);
+}
+
 module_exit(amikbd_exit);
+
+MODULE_ALIAS("platform:amiga-keyboard");
diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index 48cdabec372a..c44b9eafc556 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -80,6 +80,16 @@ config INPUT_M68K_BEEP
         tristate "M68k Beeper support"
         depends on M68K
 
+config INPUT_MAX8925_ONKEY
+        tristate "MAX8925 ONKEY support"
+        depends on MFD_MAX8925
+        help
+          Support the ONKEY of MAX8925 PMICs as an input device
+          reporting power button status.
+
+          To compile this driver as a module, choose M here: the module
+          will be called max8925_onkey.
+
 config INPUT_APANEL
         tristate "Fujitsu Lifebook Application Panel buttons"
         depends on X86 && I2C && LEDS_CLASS
diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile
index f9f577031e06..71fe57d8023f 100644
--- a/drivers/input/misc/Makefile
+++ b/drivers/input/misc/Makefile
@@ -20,6 +20,7 @@ obj-$(CONFIG_HP_SDC_RTC)		+= hp_sdc_rtc.o
 obj-$(CONFIG_INPUT_IXP4XX_BEEPER)       += ixp4xx-beeper.o
 obj-$(CONFIG_INPUT_KEYSPAN_REMOTE)      += keyspan_remote.o
 obj-$(CONFIG_INPUT_M68K_BEEP)           += m68kspkr.o
+obj-$(CONFIG_INPUT_MAX8925_ONKEY)       += max8925_onkey.o
 obj-$(CONFIG_INPUT_PCAP)                += pcap_keys.o
 obj-$(CONFIG_INPUT_PCF50633_PMU)        += pcf50633-input.o
 obj-$(CONFIG_INPUT_PCF8574)             += pcf8574_keypad.o
diff --git a/drivers/input/misc/max8925_onkey.c b/drivers/input/misc/max8925_onkey.c
new file mode 100644
index 000000000000..80af44608018
--- /dev/null
+++ b/drivers/input/misc/max8925_onkey.c
@@ -0,0 +1,148 @@
+/**
+ * max8925_onkey.c - MAX8925 ONKEY driver
+ *
+ * Copyright (C) 2009 Marvell International Ltd.
+ *      Haojian Zhuang <haojian.zhuang@marvell.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file "COPYING" in the main directory of this
+ * archive for more details.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/mfd/max8925.h>
+#include <linux/slab.h>
+
+#define HARDRESET_EN            (1 << 7)
+#define PWREN_EN                (1 << 7)
+
+struct max8925_onkey_info {
+        struct input_dev        *idev;
+        struct i2c_client       *i2c;
+        int                     irq;
+};
+
+/*
+ * MAX8925 gives us an interrupt when ONKEY is held for 3 seconds.
+ * max8925_set_bits() operates I2C bus and may sleep. So implement
+ * it in thread IRQ handler.
+ */
+static irqreturn_t max8925_onkey_handler(int irq, void *data)
+{
+        struct max8925_onkey_info *info = data;
+
+        input_report_key(info->idev, KEY_POWER, 1);
+        input_sync(info->idev);
+
+        /* Enable hardreset to halt if system isn't shutdown on time */
+        max8925_set_bits(info->i2c, MAX8925_SYSENSEL,
+                         HARDRESET_EN, HARDRESET_EN);
+
+        return IRQ_HANDLED;
+}
+
+static int __devinit max8925_onkey_probe(struct platform_device *pdev)
+{
+        struct max8925_chip *chip = dev_get_drvdata(pdev->dev.parent);
+        struct max8925_onkey_info *info;
+        int error;
+
+        info = kzalloc(sizeof(struct max8925_onkey_info), GFP_KERNEL);
+        if (!info)
+                return -ENOMEM;
+
+        info->i2c = chip->i2c;
+        info->irq = chip->irq_base + MAX8925_IRQ_GPM_SW_3SEC;
+
+        info->idev = input_allocate_device();
+        if (!info->idev) {
+                dev_err(chip->dev, "Failed to allocate input dev\n");
+                error = -ENOMEM;
+                goto out_input;
+        }
+
+        info->idev->name = "max8925_on";
+        info->idev->phys = "max8925_on/input0";
+        info->idev->id.bustype = BUS_I2C;
+        info->idev->dev.parent = &pdev->dev;
+        info->idev->evbit[0] = BIT_MASK(EV_KEY);
+        info->idev->keybit[BIT_WORD(KEY_POWER)] = BIT_MASK(KEY_POWER);
+
+        error = request_threaded_irq(info->irq, NULL, max8925_onkey_handler,
+                                     IRQF_ONESHOT, "onkey", info);
+        if (error < 0) {
+                dev_err(chip->dev, "Failed to request IRQ: #%d: %d\n",
+                        info->irq, error);
+                goto out_irq;
+        }
+
+        error = input_register_device(info->idev);
+        if (error) {
+                dev_err(chip->dev, "Can't register input device: %d\n", error);
+                goto out;
+        }
+
+        platform_set_drvdata(pdev, info);
+
+        return 0;
+
+out:
+        free_irq(info->irq, info);
+out_irq:
+        input_free_device(info->idev);
+out_input:
+        kfree(info);
+        return error;
+}
+
+static int __devexit max8925_onkey_remove(struct platform_device *pdev)
+{
+        struct max8925_onkey_info *info = platform_get_drvdata(pdev);
+
+        free_irq(info->irq, info);
+        input_unregister_device(info->idev);
+        kfree(info);
+
+        platform_set_drvdata(pdev, NULL);
+
+        return 0;
+}
+
+static struct platform_driver max8925_onkey_driver = {
+        .driver         = {
+                .name   = "max8925-onkey",
+                .owner  = THIS_MODULE,
+        },
+        .probe          = max8925_onkey_probe,
+        .remove         = __devexit_p(max8925_onkey_remove),
+};
+
+static int __init max8925_onkey_init(void)
+{
+        return platform_driver_register(&max8925_onkey_driver);
+}
+module_init(max8925_onkey_init);
+
+static void __exit max8925_onkey_exit(void)
+{
+        platform_driver_unregister(&max8925_onkey_driver);
+}
+module_exit(max8925_onkey_exit);
+
+MODULE_DESCRIPTION("Maxim MAX8925 ONKEY driver");
+MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/misc/twl4030-vibra.c b/drivers/input/misc/twl4030-vibra.c
index fee9eac8e04a..4f9b2afc24e8 100644
--- a/drivers/input/misc/twl4030-vibra.c
+++ b/drivers/input/misc/twl4030-vibra.c
@@ -90,8 +90,8 @@ static void vibra_disable(struct vibra_info *info)
         twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,
                          (reg & ~TWL4030_VIBRA_EN), TWL4030_REG_VIBRA_CTL);
 
-        twl4030_codec_disable_resource(TWL4030_CODEC_RES_POWER);
         twl4030_codec_disable_resource(TWL4030_CODEC_RES_APLL);
+        twl4030_codec_disable_resource(TWL4030_CODEC_RES_POWER);
 
         info->enabled = false;
 }
diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
index 1477466076ad..b71eb55f2dbc 100644
--- a/drivers/input/misc/uinput.c
+++ b/drivers/input/misc/uinput.c
@@ -300,7 +300,7 @@ static int uinput_validate_absbits(struct input_dev *dev)
         unsigned int cnt;
         int retval = 0;
 
-        for (cnt = 0; cnt < ABS_MAX + 1; cnt++) {
+        for (cnt = 0; cnt < ABS_CNT; cnt++) {
                 if (!test_bit(cnt, dev->absbit))
                         continue;
 
@@ -387,7 +387,7 @@ static int uinput_setup_device(struct uinput_device *udev, const char __user *bu
         dev->id.product = user_dev->id.product;
         dev->id.version = user_dev->id.version;
 
-        size = sizeof(int) * (ABS_MAX + 1);
+        size = sizeof(int) * ABS_CNT;
         memcpy(dev->absmax, user_dev->absmax, size);
         memcpy(dev->absmin, user_dev->absmin, size);
         memcpy(dev->absfuzz, user_dev->absfuzz, size);
diff --git a/drivers/input/mouse/amimouse.c b/drivers/input/mouse/amimouse.c
index a185ac78a42c..ff5f61a0fd3a 100644
--- a/drivers/input/mouse/amimouse.c
+++ b/drivers/input/mouse/amimouse.c
@@ -21,6 +21,7 @@
 #include <linux/init.h>
 #include <linux/input.h>
 #include <linux/interrupt.h>
+#include <linux/platform_device.h>
 
 #include <asm/irq.h>
 #include <asm/setup.h>
@@ -34,10 +35,10 @@ MODULE_DESCRIPTION("Amiga mouse driver");
 MODULE_LICENSE("GPL");
 
 static int amimouse_lastx, amimouse_lasty;
-static struct input_dev *amimouse_dev;
 
-static irqreturn_t amimouse_interrupt(int irq, void *dummy)
+static irqreturn_t amimouse_interrupt(int irq, void *data)
 {
+        struct input_dev *dev = data;
         unsigned short joy0dat, potgor;
         int nx, ny, dx, dy;
 
@@ -59,14 +60,14 @@ static irqreturn_t amimouse_interrupt(int irq, void *dummy)
 
         potgor = amiga_custom.potgor;
 
-        input_report_rel(amimouse_dev, REL_X, dx);
-        input_report_rel(amimouse_dev, REL_Y, dy);
+        input_report_rel(dev, REL_X, dx);
+        input_report_rel(dev, REL_Y, dy);
 
-        input_report_key(amimouse_dev, BTN_LEFT,   ciaa.pra & 0x40);
-        input_report_key(amimouse_dev, BTN_MIDDLE, potgor & 0x0100);
-        input_report_key(amimouse_dev, BTN_RIGHT,  potgor & 0x0400);
+        input_report_key(dev, BTN_LEFT,   ciaa.pra & 0x40);
+        input_report_key(dev, BTN_MIDDLE, potgor & 0x0100);
+        input_report_key(dev, BTN_RIGHT,  potgor & 0x0400);
 
-        input_sync(amimouse_dev);
+        input_sync(dev);
 
         return IRQ_HANDLED;
 }
@@ -74,63 +75,90 @@ static irqreturn_t amimouse_interrupt(int irq, void *dummy)
 static int amimouse_open(struct input_dev *dev)
 {
         unsigned short joy0dat;
+        int error;
 
         joy0dat = amiga_custom.joy0dat;
 
         amimouse_lastx = joy0dat & 0xff;
         amimouse_lasty = joy0dat >> 8;
 
-        if (request_irq(IRQ_AMIGA_VERTB, amimouse_interrupt, 0, "amimouse", amimouse_interrupt)) {
-                printk(KERN_ERR "amimouse.c: Can't allocate irq %d\n", IRQ_AMIGA_VERTB);
-                return -EBUSY;
-        }
+        error = request_irq(IRQ_AMIGA_VERTB, amimouse_interrupt, 0, "amimouse",
+                            dev);
+        if (error)
+                dev_err(&dev->dev, "Can't allocate irq %d\n", IRQ_AMIGA_VERTB);
 
-        return 0;
+        return error;
 }
 
 static void amimouse_close(struct input_dev *dev)
 {
-        free_irq(IRQ_AMIGA_VERTB, amimouse_interrupt);
+        free_irq(IRQ_AMIGA_VERTB, dev);
 }
 
-static int __init amimouse_init(void)
+static int __init amimouse_probe(struct platform_device *pdev)
 {
         int err;
+        struct input_dev *dev;
 
-        if (!MACH_IS_AMIGA || !AMIGAHW_PRESENT(AMI_MOUSE))
-                return -ENODEV;
-
-        amimouse_dev = input_allocate_device();
-        if (!amimouse_dev)
+        dev = input_allocate_device();
+        if (!dev)
                 return -ENOMEM;
 
-        amimouse_dev->name = "Amiga mouse";
-        amimouse_dev->phys = "amimouse/input0";
-        amimouse_dev->id.bustype = BUS_AMIGA;
-        amimouse_dev->id.vendor = 0x0001;
-        amimouse_dev->id.product = 0x0002;
-        amimouse_dev->id.version = 0x0100;
+        dev->name = pdev->name;
+        dev->phys = "amimouse/input0";
+        dev->id.bustype = BUS_AMIGA;
+        dev->id.vendor = 0x0001;
+        dev->id.product = 0x0002;
+        dev->id.version = 0x0100;
 
-        amimouse_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
-        amimouse_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
-        amimouse_dev->keybit[BIT_WORD(BTN_LEFT)] = BIT_MASK(BTN_LEFT) |
+        dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
+        dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
+        dev->keybit[BIT_WORD(BTN_LEFT)] = BIT_MASK(BTN_LEFT) |
                 BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT);
-        amimouse_dev->open = amimouse_open;
-        amimouse_dev->close = amimouse_close;
+        dev->open = amimouse_open;
+        dev->close = amimouse_close;
+        dev->dev.parent = &pdev->dev;
 
-        err = input_register_device(amimouse_dev);
+        err = input_register_device(dev);
         if (err) {
-                input_free_device(amimouse_dev);
+                input_free_device(dev);
                 return err;
         }
 
+        platform_set_drvdata(pdev, dev);
+
         return 0;
 }
 
-static void __exit amimouse_exit(void)
+static int __exit amimouse_remove(struct platform_device *pdev)
 {
-        input_unregister_device(amimouse_dev);
+        struct input_dev *dev = platform_get_drvdata(pdev);
+
+        platform_set_drvdata(pdev, NULL);
+        input_unregister_device(dev);
+        return 0;
+}
+
+static struct platform_driver amimouse_driver = {
+        .remove = __exit_p(amimouse_remove),
+        .driver   = {
+                .name   = "amiga-mouse",
+                .owner  = THIS_MODULE,
+        },
+};
+
+static int __init amimouse_init(void)
+{
+        return platform_driver_probe(&amimouse_driver, amimouse_probe);
 }
 
 module_init(amimouse_init);
+
+static void __exit amimouse_exit(void)
+{
+        platform_driver_unregister(&amimouse_driver);
+}
+
 module_exit(amimouse_exit);
+
+MODULE_ALIAS("platform:amiga-mouse");
diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
index 532279cda0e4..634f6f6b9b13 100644
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -1163,8 +1163,8 @@ static int __devinit ads7846_probe(struct spi_device *spi)
 
         ts->reg = regulator_get(&spi->dev, "vcc");
         if (IS_ERR(ts->reg)) {
-                dev_err(&spi->dev, "unable to get regulator: %ld\n",
-                        PTR_ERR(ts->reg));
+                err = PTR_ERR(ts->reg);
+                dev_err(&spi->dev, "unable to get regulator: %ld\n", err);
                 goto err_free_gpio;
         }
 
diff --git a/drivers/input/touchscreen/s3c2410_ts.c b/drivers/input/touchscreen/s3c2410_ts.c
index e0b7c834111d..ac5d0f9b0cb1 100644
--- a/drivers/input/touchscreen/s3c2410_ts.c
+++ b/drivers/input/touchscreen/s3c2410_ts.c
@@ -413,6 +413,8 @@ static struct dev_pm_ops s3c_ts_pmops = {
 #endif
 
 static struct platform_device_id s3cts_driver_ids[] = {
+        { "s3c2410-ts", 0 },
+        { "s3c2440-ts", 0 },
         { "s3c64xx-ts", FEAT_PEN_IRQ },
         { }
 };
diff --git a/drivers/input/touchscreen/usbtouchscreen.c b/drivers/input/touchscreen/usbtouchscreen.c
index 29a8bbf3f086..567d57215c28 100644
--- a/drivers/input/touchscreen/usbtouchscreen.c
+++ b/drivers/input/touchscreen/usbtouchscreen.c
@@ -857,6 +857,11 @@ static int nexio_read_data(struct usbtouch_usb *usbtouch, unsigned char *pkt)
         if ((pkt[0] & 0xe0) != 0xe0)
                 return 0;
 
+        if (be16_to_cpu(packet->data_len) > 0xff)
+                packet->data_len = cpu_to_be16(be16_to_cpu(packet->data_len) - 0x100);
+        if (be16_to_cpu(packet->x_len) > 0xff)
+                packet->x_len = cpu_to_be16(be16_to_cpu(packet->x_len) - 0x80);
+
         /* send ACK */
         ret = usb_submit_urb(priv->ack, GFP_ATOMIC);
 
@@ -1112,7 +1117,7 @@ static struct usbtouch_device_info usbtouch_dev_info[] = {
 
 #ifdef CONFIG_TOUCHSCREEN_USB_NEXIO
         [DEVTYPE_NEXIO] = {
-                .rept_size      = 128,
+                .rept_size      = 1024,
                 .irq_always     = true,
                 .read_data      = nexio_read_data,
                 .init           = nexio_init,
diff --git a/drivers/isdn/mISDN/timerdev.c b/drivers/isdn/mISDN/timerdev.c
index c3243c913ec0..81048b8ed8ad 100644
--- a/drivers/isdn/mISDN/timerdev.c
+++ b/drivers/isdn/mISDN/timerdev.c
@@ -98,8 +98,6 @@ mISDN_read(struct file *filep, char __user *buf, size_t count, loff_t *off)
         if (*debug & DEBUG_TIMER)
                 printk(KERN_DEBUG "%s(%p, %p, %d, %p)\n", __func__,
                         filep, buf, (int)count, off);
-        if (*off != filep->f_pos)
-                return -ESPIPE;
 
         if (list_empty(&dev->expired) && (dev->work == 0)) {
                 if (filep->f_flags & O_NONBLOCK)
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 9ea17d6c799b..d2c0f94fa37d 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -4645,7 +4645,7 @@ static int raid456_cpu_notify(struct notifier_block *nfb, unsigned long action,
                         kfree(percpu->scribble);
                         pr_err("%s: failed memory allocation for cpu%ld\n",
                                __func__, cpu);
-                        return NOTIFY_BAD;
+                        return notifier_from_errno(-ENOMEM);
                 }
                 break;
         case CPU_DEAD:
diff --git a/drivers/message/i2o/i2o_config.c b/drivers/message/i2o/i2o_config.c
index d33693c13368..c4b117f5fb70 100644
--- a/drivers/message/i2o/i2o_config.c
+++ b/drivers/message/i2o/i2o_config.c
@@ -186,14 +186,9 @@ static int i2o_cfg_parms(unsigned long arg, unsigned int type)
         if (!dev)
                 return -ENXIO;
 
-        ops = kmalloc(kcmd.oplen, GFP_KERNEL);
-        if (!ops)
-                return -ENOMEM;
-
-        if (copy_from_user(ops, kcmd.opbuf, kcmd.oplen)) {
-                kfree(ops);
-                return -EFAULT;
-        }
+        ops = memdup_user(kcmd.opbuf, kcmd.oplen);
+        if (IS_ERR(ops))
+                return PTR_ERR(ops);
 
         /*
          * It's possible to have a _very_ large table
diff --git a/drivers/misc/lkdtm.c b/drivers/misc/lkdtm.c
index 31a991161f0a..5bfb2a2041b8 100644
--- a/drivers/misc/lkdtm.c
+++ b/drivers/misc/lkdtm.c
@@ -75,6 +75,9 @@ enum ctype {
         UNALIGNED_LOAD_STORE_WRITE,
         OVERWRITE_ALLOCATION,
         WRITE_AFTER_FREE,
+        SOFTLOCKUP,
+        HARDLOCKUP,
+        HUNG_TASK,
 };
 
 static char* cp_name[] = {
@@ -99,6 +102,9 @@ static char* cp_type[] = {
         "UNALIGNED_LOAD_STORE_WRITE",
         "OVERWRITE_ALLOCATION",
         "WRITE_AFTER_FREE",
+        "SOFTLOCKUP",
+        "HARDLOCKUP",
+        "HUNG_TASK",
 };
 
 static struct jprobe lkdtm;
@@ -320,6 +326,20 @@ static void lkdtm_do_action(enum ctype which)
                 memset(data, 0x78, len);
                 break;
         }
+        case SOFTLOCKUP:
+                preempt_disable();
+                for (;;)
+                        cpu_relax();
+                break;
+        case HARDLOCKUP:
+                local_irq_disable();
+                for (;;)
+                        cpu_relax();
+                break;
+        case HUNG_TASK:
+                set_current_state(TASK_UNINTERRUPTIBLE);
+                schedule();
+                break;
         case NONE:
         default:
                 break;
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 3168ebd616b2..569e94da844c 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -1252,9 +1252,8 @@ EXPORT_SYMBOL(mmc_card_can_sleep);
 /**
  *      mmc_suspend_host - suspend a host
  *      @host: mmc host
- *      @state: suspend mode (PM_SUSPEND_xxx)
  */
-int mmc_suspend_host(struct mmc_host *host, pm_message_t state)
+int mmc_suspend_host(struct mmc_host *host)
 {
         int err = 0;
 
diff --git a/drivers/mmc/core/sd_ops.c b/drivers/mmc/core/sd_ops.c
index 0d96080d44b0..63772e7e7608 100644
--- a/drivers/mmc/core/sd_ops.c
+++ b/drivers/mmc/core/sd_ops.c
@@ -79,8 +79,6 @@ int mmc_wait_for_app_cmd(struct mmc_host *host, struct mmc_card *card,
          * we cannot use the retries field in mmc_command.
          */
         for (i = 0;i <= retries;i++) {
-                memset(&mrq, 0, sizeof(struct mmc_request));
-
                 err = mmc_app_cmd(host, card);
                 if (err) {
                         /* no point in retrying; no APP commands allowed */
diff --git a/drivers/mmc/core/sdio_io.c b/drivers/mmc/core/sdio_io.c
index ff27c8c71355..0f687cdeb064 100644
--- a/drivers/mmc/core/sdio_io.c
+++ b/drivers/mmc/core/sdio_io.c
@@ -406,6 +406,36 @@ void sdio_writeb(struct sdio_func *func, u8 b, unsigned int addr, int *err_ret)
 EXPORT_SYMBOL_GPL(sdio_writeb);
 
 /**
+ *      sdio_writeb_readb - write and read a byte from SDIO function
+ *      @func: SDIO function to access
+ *      @write_byte: byte to write
+ *      @addr: address to write to
+ *      @err_ret: optional status value from transfer
+ *
+ *      Performs a RAW (Read after Write) operation as defined by SDIO spec -
+ *      single byte is written to address space of a given SDIO function and
+ *      response is read back from the same address, both using single request.
+ *      If there is a problem with the operation, 0xff is returned and
+ *      @err_ret will contain the error code.
+ */
+u8 sdio_writeb_readb(struct sdio_func *func, u8 write_byte,
+        unsigned int addr, int *err_ret)
+{
+        int ret;
+        u8 val;
+
+        ret = mmc_io_rw_direct(func->card, 1, func->num, addr,
+                        write_byte, &val);
+        if (err_ret)
+                *err_ret = ret;
+        if (ret)
+                val = 0xff;
+
+        return val;
+}
+EXPORT_SYMBOL_GPL(sdio_writeb_readb);
+
+/**
  *      sdio_memcpy_fromio - read a chunk of memory from a SDIO function
  *      @func: SDIO function to access
  *      @dst: buffer to store the data
diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index 2e13b94769fd..e171e77f6129 100644
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -136,6 +136,18 @@ config MMC_SDHCI_S3C
 
           If unsure, say N.
 
+config MMC_SDHCI_SPEAR
+        tristate "SDHCI support on ST SPEAr platform"
+        depends on MMC_SDHCI && PLAT_SPEAR
+        help
+          This selects the Secure Digital Host Controller Interface (SDHCI)
+          often referrered to as the HSMMC block in some of the ST SPEAR range
+          of SoC
+
+          If you have a controller with this interface, say Y or M here.
+
+          If unsure, say N.
+
 config MMC_SDHCI_S3C_DMA
         bool "DMA support on S3C SDHCI"
         depends on MMC_SDHCI_S3C && EXPERIMENTAL
@@ -412,3 +424,11 @@ config SDH_BFIN_MISSING_CMD_PULLUP_WORKAROUND
         depends on SDH_BFIN
         help
           If you say yes here SD-Cards may work on the EZkit.
+
+config MMC_SH_MMCIF
+        tristate "SuperH Internal MMCIF support"
+        depends on MMC_BLOCK && (SUPERH || ARCH_SHMOBILE)
+        help
+          This selects the MMC Host Interface controler (MMCIF).
+
+          This driver supports MMCIF in sh7724/sh7757/sh7372.
diff --git a/drivers/mmc/host/Makefile b/drivers/mmc/host/Makefile
index f4803977dfce..e30c2ee48894 100644
--- a/drivers/mmc/host/Makefile
+++ b/drivers/mmc/host/Makefile
@@ -14,6 +14,7 @@ obj-$(CONFIG_MMC_SDHCI)		+= sdhci.o
 obj-$(CONFIG_MMC_SDHCI_PCI)     += sdhci-pci.o
 obj-$(CONFIG_MMC_SDHCI_PLTFM)   += sdhci-pltfm.o
 obj-$(CONFIG_MMC_SDHCI_S3C)     += sdhci-s3c.o
+obj-$(CONFIG_MMC_SDHCI_SPEAR)   += sdhci-spear.o
 obj-$(CONFIG_MMC_WBSD)          += wbsd.o
 obj-$(CONFIG_MMC_AU1X)          += au1xmmc.o
 obj-$(CONFIG_MMC_OMAP)          += omap.o
@@ -34,6 +35,7 @@ obj-$(CONFIG_MMC_TMIO)		+= tmio_mmc.o
 obj-$(CONFIG_MMC_CB710) += cb710-mmc.o
 obj-$(CONFIG_MMC_VIA_SDMMC)     += via-sdmmc.o
 obj-$(CONFIG_SDH_BFIN)          += bfin_sdh.o
+obj-$(CONFIG_MMC_SH_MMCIF)      += sh_mmcif.o
 
 obj-$(CONFIG_MMC_SDHCI_OF)      += sdhci-of.o
 sdhci-of-y                              := sdhci-of-core.o
diff --git a/drivers/mmc/host/at91_mci.c b/drivers/mmc/host/at91_mci.c
index 336d9f553f3e..5f3a599ead07 100644
--- a/drivers/mmc/host/at91_mci.c
+++ b/drivers/mmc/host/at91_mci.c
@@ -1157,7 +1157,7 @@ static int at91_mci_suspend(struct platform_device *pdev, pm_message_t state)
                 enable_irq_wake(host->board->det_pin);
 
         if (mmc)
-                ret = mmc_suspend_host(mmc, state);
+                ret = mmc_suspend_host(mmc);
 
         return ret;
 }
diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index df0e8a88d85f..95ef864ad8f9 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -173,6 +173,7 @@ struct atmel_mci {
  * @mmc: The mmc_host representing this slot.
  * @host: The MMC controller this slot is using.
  * @sdc_reg: Value of SDCR to be written before using this slot.
+ * @sdio_irq: SDIO irq mask for this slot.
  * @mrq: mmc_request currently being processed or waiting to be
  *      processed, or NULL when the slot is idle.
  * @queue_node: List node for placing this node in the @queue list of
@@ -191,6 +192,7 @@ struct atmel_mci_slot {
         struct atmel_mci        *host;
 
         u32                     sdc_reg;
+        u32                     sdio_irq;
 
         struct mmc_request      *mrq;
         struct list_head        queue_node;
@@ -792,7 +794,7 @@ static void atmci_start_request(struct atmel_mci *host,
         mci_writel(host, SDCR, slot->sdc_reg);
 
         iflags = mci_readl(host, IMR);
-        if (iflags)
+        if (iflags & ~(MCI_SDIOIRQA | MCI_SDIOIRQB))
                 dev_warn(&slot->mmc->class_dev, "WARNING: IMR=0x%08x\n",
                                 iflags);
 
@@ -952,10 +954,21 @@ static void atmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
                 if (mci_has_rwproof())
                         host->mode_reg |= (MCI_MR_WRPROOF | MCI_MR_RDPROOF);
 
-                if (list_empty(&host->queue))
+                if (atmci_is_mci2()) {
+                        /* setup High Speed mode in relation with card capacity */
+                        if (ios->timing == MMC_TIMING_SD_HS)
+                                host->cfg_reg |= MCI_CFG_HSMODE;
+                        else
+                                host->cfg_reg &= ~MCI_CFG_HSMODE;
+                }
+
+                if (list_empty(&host->queue)) {
                         mci_writel(host, MR, host->mode_reg);
-                else
+                        if (atmci_is_mci2())
+                                mci_writel(host, CFG, host->cfg_reg);
+                } else {
                         host->need_clock_update = true;
+                }
 
                 spin_unlock_bh(&host->lock);
         } else {
@@ -1030,11 +1043,23 @@ static int atmci_get_cd(struct mmc_host *mmc)
         return present;
 }
 
+static void atmci_enable_sdio_irq(struct mmc_host *mmc, int enable)
+{
+        struct atmel_mci_slot   *slot = mmc_priv(mmc);
+        struct atmel_mci        *host = slot->host;
+
+        if (enable)
+                mci_writel(host, IER, slot->sdio_irq);
+        else
+                mci_writel(host, IDR, slot->sdio_irq);
+}
+
 static const struct mmc_host_ops atmci_ops = {
         .request        = atmci_request,
         .set_ios        = atmci_set_ios,
         .get_ro         = atmci_get_ro,
         .get_cd         = atmci_get_cd,
+        .enable_sdio_irq = atmci_enable_sdio_irq,
 };
 
 /* Called with host->lock held */
@@ -1052,8 +1077,11 @@ static void atmci_request_end(struct atmel_mci *host, struct mmc_request *mrq)
          * necessary if set_ios() is called when a different slot is
          * busy transfering data.
          */
-        if (host->need_clock_update)
+        if (host->need_clock_update) {
                 mci_writel(host, MR, host->mode_reg);
+                if (atmci_is_mci2())
+                        mci_writel(host, CFG, host->cfg_reg);
+        }
 
         host->cur_slot->mrq = NULL;
         host->mrq = NULL;
@@ -1483,6 +1511,19 @@ static void atmci_cmd_interrupt(struct atmel_mci *host, u32 status)
         tasklet_schedule(&host->tasklet);
 }
 
+static void atmci_sdio_interrupt(struct atmel_mci *host, u32 status)
+{
+        int     i;
+
+        for (i = 0; i < ATMEL_MCI_MAX_NR_SLOTS; i++) {
+                struct atmel_mci_slot *slot = host->slot[i];
+                if (slot && (status & slot->sdio_irq)) {
+                        mmc_signal_sdio_irq(slot->mmc);
+                }
+        }
+}
+
+
 static irqreturn_t atmci_interrupt(int irq, void *dev_id)
 {
         struct atmel_mci        *host = dev_id;
@@ -1522,6 +1563,10 @@ static irqreturn_t atmci_interrupt(int irq, void *dev_id)
 
                 if (pending & MCI_CMDRDY)
                         atmci_cmd_interrupt(host, status);
+
+                if (pending & (MCI_SDIOIRQA | MCI_SDIOIRQB))
+                        atmci_sdio_interrupt(host, status);
+
         } while (pass_count++ < 5);
 
         return pass_count ? IRQ_HANDLED : IRQ_NONE;
@@ -1544,7 +1589,7 @@ static irqreturn_t atmci_detect_interrupt(int irq, void *dev_id)
 
 static int __init atmci_init_slot(struct atmel_mci *host,
                 struct mci_slot_pdata *slot_data, unsigned int id,
-                u32 sdc_reg)
+                u32 sdc_reg, u32 sdio_irq)
 {
         struct mmc_host                 *mmc;
         struct atmel_mci_slot           *slot;
@@ -1560,11 +1605,16 @@ static int __init atmci_init_slot(struct atmel_mci *host,
         slot->wp_pin = slot_data->wp_pin;
         slot->detect_is_active_high = slot_data->detect_is_active_high;
         slot->sdc_reg = sdc_reg;
+        slot->sdio_irq = sdio_irq;
 
         mmc->ops = &atmci_ops;
         mmc->f_min = DIV_ROUND_UP(host->bus_hz, 512);
         mmc->f_max = host->bus_hz / 2;
         mmc->ocr_avail  = MMC_VDD_32_33 | MMC_VDD_33_34;
+        if (sdio_irq)
+                mmc->caps |= MMC_CAP_SDIO_IRQ;
+        if (atmci_is_mci2())
+                mmc->caps |= MMC_CAP_SD_HIGHSPEED;
         if (slot_data->bus_width >= 4)
                 mmc->caps |= MMC_CAP_4_BIT_DATA;
 
@@ -1753,13 +1803,13 @@ static int __init atmci_probe(struct platform_device *pdev)
         ret = -ENODEV;
         if (pdata->slot[0].bus_width) {
                 ret = atmci_init_slot(host, &pdata->slot[0],
-                                0, MCI_SDCSEL_SLOT_A);
+                                0, MCI_SDCSEL_SLOT_A, MCI_SDIOIRQA);
                 if (!ret)
                         nr_slots++;
         }
         if (pdata->slot[1].bus_width) {
                 ret = atmci_init_slot(host, &pdata->slot[1],
-                                1, MCI_SDCSEL_SLOT_B);
+                                1, MCI_SDCSEL_SLOT_B, MCI_SDIOIRQB);
                 if (!ret)
                         nr_slots++;
         }
diff --git a/drivers/mmc/host/au1xmmc.c b/drivers/mmc/host/au1xmmc.c
index f5834449400e..c8da5d30a861 100644
--- a/drivers/mmc/host/au1xmmc.c
+++ b/drivers/mmc/host/au1xmmc.c
@@ -1142,7 +1142,7 @@ static int au1xmmc_suspend(struct platform_device *pdev, pm_message_t state)
         struct au1xmmc_host *host = platform_get_drvdata(pdev);
         int ret;
 
-        ret = mmc_suspend_host(host->mmc, state);
+        ret = mmc_suspend_host(host->mmc);
         if (ret)
                 return ret;
 
diff --git a/drivers/mmc/host/bfin_sdh.c b/drivers/mmc/host/bfin_sdh.c
index 6919e844072c..4b0e677d7295 100644
--- a/drivers/mmc/host/bfin_sdh.c
+++ b/drivers/mmc/host/bfin_sdh.c
@@ -576,7 +576,7 @@ static int sdh_suspend(struct platform_device *dev, pm_message_t state)
         int ret = 0;
 
         if (mmc)
-                ret = mmc_suspend_host(mmc, state);
+                ret = mmc_suspend_host(mmc);
 
         bfin_write_SDH_PWR_CTL(bfin_read_SDH_PWR_CTL() & ~PWR_ON);
         peripheral_free_list(drv_data->pin_req);
diff --git a/drivers/mmc/host/cb710-mmc.c b/drivers/mmc/host/cb710-mmc.c
index 92a324f7417c..ca3bdc831900 100644
--- a/drivers/mmc/host/cb710-mmc.c
+++ b/drivers/mmc/host/cb710-mmc.c
@@ -675,7 +675,7 @@ static int cb710_mmc_suspend(struct platform_device *pdev, pm_message_t state)
         struct mmc_host *mmc = cb710_slot_to_mmc(slot);
         int err;
 
-        err = mmc_suspend_host(mmc, state);
+        err = mmc_suspend_host(mmc);
         if (err)
                 return err;
 
diff --git a/drivers/mmc/host/davinci_mmc.c b/drivers/mmc/host/davinci_mmc.c
index 3bd0ba294e9d..33d9f1b00862 100644
--- a/drivers/mmc/host/davinci_mmc.c
+++ b/drivers/mmc/host/davinci_mmc.c
@@ -137,15 +137,15 @@
 
 /*
  * One scatterlist dma "segment" is at most MAX_CCNT rw_threshold units,
- * and we handle up to NR_SG segments.  MMC_BLOCK_BOUNCE kicks in only
+ * and we handle up to MAX_NR_SG segments.  MMC_BLOCK_BOUNCE kicks in only
  * for drivers with max_hw_segs == 1, making the segments bigger (64KB)
- * than the page or two that's otherwise typical.  NR_SG == 16 gives at
- * least the same throughput boost, using EDMA transfer linkage instead
- * of spending CPU time copying pages.
+ * than the page or two that's otherwise typical. nr_sg (passed from
+ * platform data) == 16 gives at least the same throughput boost, using
+ * EDMA transfer linkage instead of spending CPU time copying pages.
  */
 #define MAX_CCNT        ((1 << 16) - 1)
 
-#define NR_SG           16
+#define MAX_NR_SG       16
 
 static unsigned rw_threshold = 32;
 module_param(rw_threshold, uint, S_IRUGO);
@@ -171,6 +171,7 @@ struct mmc_davinci_host {
 #define DAVINCI_MMC_DATADIR_READ        1
 #define DAVINCI_MMC_DATADIR_WRITE       2
         unsigned char data_dir;
+        unsigned char suspended;
 
         /* buffer is used during PIO of one scatterlist segment, and
          * is updated along with buffer_bytes_left.  bytes_left applies
@@ -192,7 +193,7 @@ struct mmc_davinci_host {
         struct edmacc_param     tx_template;
         struct edmacc_param     rx_template;
         unsigned                n_link;
-        u32                     links[NR_SG - 1];
+        u32                     links[MAX_NR_SG - 1];
 
         /* For PIO we walk scatterlists one segment at a time. */
         unsigned int            sg_len;
@@ -202,6 +203,8 @@ struct mmc_davinci_host {
         u8 version;
         /* for ns in one cycle calculation */
         unsigned ns_in_one_cycle;
+        /* Number of sg segments */
+        u8 nr_sg;
 #ifdef CONFIG_CPU_FREQ
         struct notifier_block   freq_transition;
 #endif
@@ -568,6 +571,7 @@ davinci_release_dma_channels(struct mmc_davinci_host *host)
 
 static int __init davinci_acquire_dma_channels(struct mmc_davinci_host *host)
 {
+        u32 link_size;
         int r, i;
 
         /* Acquire master DMA write channel */
@@ -593,7 +597,8 @@ static int __init davinci_acquire_dma_channels(struct mmc_davinci_host *host)
         /* Allocate parameter RAM slots, which will later be bound to a
          * channel as needed to handle a scatterlist.
          */
-        for (i = 0; i < ARRAY_SIZE(host->links); i++) {
+        link_size = min_t(unsigned, host->nr_sg, ARRAY_SIZE(host->links));
+        for (i = 0; i < link_size; i++) {
                 r = edma_alloc_slot(EDMA_CTLR(host->txdma), EDMA_SLOT_ANY);
                 if (r < 0) {
                         dev_dbg(mmc_dev(host->mmc), "dma PaRAM alloc --> %d\n",
@@ -905,19 +910,26 @@ static void mmc_davinci_cmd_done(struct mmc_davinci_host *host,
         }
 }
 
-static void
-davinci_abort_data(struct mmc_davinci_host *host, struct mmc_data *data)
+static inline void mmc_davinci_reset_ctrl(struct mmc_davinci_host *host,
+                                                                int val)
 {
         u32 temp;
 
-        /* reset command and data state machines */
         temp = readl(host->base + DAVINCI_MMCCTL);
-        writel(temp | MMCCTL_CMDRST | MMCCTL_DATRST,
-                host->base + DAVINCI_MMCCTL);
+        if (val)        /* reset */
+                temp |= MMCCTL_CMDRST | MMCCTL_DATRST;
+        else            /* enable */
+                temp &= ~(MMCCTL_CMDRST | MMCCTL_DATRST);
 
-        temp &= ~(MMCCTL_CMDRST | MMCCTL_DATRST);
-        udelay(10);
         writel(temp, host->base + DAVINCI_MMCCTL);
+        udelay(10);
+}
+
+static void
+davinci_abort_data(struct mmc_davinci_host *host, struct mmc_data *data)
+{
+        mmc_davinci_reset_ctrl(host, 1);
+        mmc_davinci_reset_ctrl(host, 0);
 }
 
 static irqreturn_t mmc_davinci_irq(int irq, void *dev_id)
@@ -1121,15 +1133,8 @@ static inline void mmc_davinci_cpufreq_deregister(struct mmc_davinci_host *host)
 #endif
 static void __init init_mmcsd_host(struct mmc_davinci_host *host)
 {
-        /* DAT line portion is diabled and in reset state */
-        writel(readl(host->base + DAVINCI_MMCCTL) | MMCCTL_DATRST,
-                host->base + DAVINCI_MMCCTL);
-
-        /* CMD line portion is diabled and in reset state */
-        writel(readl(host->base + DAVINCI_MMCCTL) | MMCCTL_CMDRST,
-                host->base + DAVINCI_MMCCTL);
 
-        udelay(10);
+        mmc_davinci_reset_ctrl(host, 1);
 
         writel(0, host->base + DAVINCI_MMCCLK);
         writel(MMCCLK_CLKEN, host->base + DAVINCI_MMCCLK);
@@ -1137,12 +1142,7 @@ static void __init init_mmcsd_host(struct mmc_davinci_host *host)
         writel(0x1FFF, host->base + DAVINCI_MMCTOR);
         writel(0xFFFF, host->base + DAVINCI_MMCTOD);
 
-        writel(readl(host->base + DAVINCI_MMCCTL) & ~MMCCTL_DATRST,
-                host->base + DAVINCI_MMCCTL);
-        writel(readl(host->base + DAVINCI_MMCCTL) & ~MMCCTL_CMDRST,
-                host->base + DAVINCI_MMCCTL);
-
-        udelay(10);
+        mmc_davinci_reset_ctrl(host, 0);
 }
 
 static int __init davinci_mmcsd_probe(struct platform_device *pdev)
@@ -1202,6 +1202,12 @@ static int __init davinci_mmcsd_probe(struct platform_device *pdev)
 
         init_mmcsd_host(host);
 
+        if (pdata->nr_sg)
+                host->nr_sg = pdata->nr_sg - 1;
+
+        if (host->nr_sg > MAX_NR_SG || !host->nr_sg)
+                host->nr_sg = MAX_NR_SG;
+
         host->use_dma = use_dma;
         host->irq = irq;
 
@@ -1327,32 +1333,65 @@ static int __exit davinci_mmcsd_remove(struct platform_device *pdev)
 }
 
 #ifdef CONFIG_PM
-static int davinci_mmcsd_suspend(struct platform_device *pdev, pm_message_t msg)
+static int davinci_mmcsd_suspend(struct device *dev)
 {
+        struct platform_device *pdev = to_platform_device(dev);
         struct mmc_davinci_host *host = platform_get_drvdata(pdev);
+        int ret;
 
-        return mmc_suspend_host(host->mmc, msg);
+        mmc_host_enable(host->mmc);
+        ret = mmc_suspend_host(host->mmc);
+        if (!ret) {
+                writel(0, host->base + DAVINCI_MMCIM);
+                mmc_davinci_reset_ctrl(host, 1);
+                mmc_host_disable(host->mmc);
+                clk_disable(host->clk);
+                host->suspended = 1;
+        } else {
+                host->suspended = 0;
+                mmc_host_disable(host->mmc);
+        }
+
+        return ret;
 }
 
-static int davinci_mmcsd_resume(struct platform_device *pdev)
+static int davinci_mmcsd_resume(struct device *dev)
 {
+        struct platform_device *pdev = to_platform_device(dev);
         struct mmc_davinci_host *host = platform_get_drvdata(pdev);
+        int ret;
+
+        if (!host->suspended)
+                return 0;
 
-        return mmc_resume_host(host->mmc);
+        clk_enable(host->clk);
+        mmc_host_enable(host->mmc);
+
+        mmc_davinci_reset_ctrl(host, 0);
+        ret = mmc_resume_host(host->mmc);
+        if (!ret)
+                host->suspended = 0;
+
+        return ret;
 }
+
+static const struct dev_pm_ops davinci_mmcsd_pm = {
+        .suspend        = davinci_mmcsd_suspend,
+        .resume         = davinci_mmcsd_resume,
+};
+
+#define davinci_mmcsd_pm_ops (&davinci_mmcsd_pm)
 #else
-#define davinci_mmcsd_suspend   NULL
-#define davinci_mmcsd_resume    NULL
+#define davinci_mmcsd_pm_ops NULL
 #endif
 
 static struct platform_driver davinci_mmcsd_driver = {
         .driver         = {
                 .name   = "davinci_mmc",
                 .owner  = THIS_MODULE,
+                .pm     = davinci_mmcsd_pm_ops,
         },
         .remove         = __exit_p(davinci_mmcsd_remove),
-        .suspend        = davinci_mmcsd_suspend,
-        .resume         = davinci_mmcsd_resume,
 };
 
 static int __init davinci_mmcsd_init(void)
diff --git a/drivers/mmc/host/imxmmc.c b/drivers/mmc/host/imxmmc.c
index bf98d7cc928a..9a68ff4353a2 100644
--- a/drivers/mmc/host/imxmmc.c
+++ b/drivers/mmc/host/imxmmc.c
@@ -1115,7 +1115,7 @@ static int imxmci_suspend(struct platform_device *dev, pm_message_t state)
         int ret = 0;
 
         if (mmc)
-                ret = mmc_suspend_host(mmc, state);
+                ret = mmc_suspend_host(mmc);
 
         return ret;
 }
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index ff115d920888..4917af96bae1 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -824,7 +824,7 @@ static int mmci_suspend(struct amba_device *dev, pm_message_t state)
         if (mmc) {
                 struct mmci_host *host = mmc_priv(mmc);
 
-                ret = mmc_suspend_host(mmc, state);
+                ret = mmc_suspend_host(mmc);
                 if (ret == 0)
                         writel(0, host->base + MMCIMASK0);
         }
diff --git a/drivers/mmc/host/msm_sdcc.c b/drivers/mmc/host/msm_sdcc.c
index 61f1d27fed3f..24e09454e522 100644
--- a/drivers/mmc/host/msm_sdcc.c
+++ b/drivers/mmc/host/msm_sdcc.c
@@ -1327,7 +1327,7 @@ msmsdcc_suspend(struct platform_device *dev, pm_message_t state)
                         disable_irq(host->stat_irq);
 
                 if (mmc->card && mmc->card->type != MMC_TYPE_SDIO)
-                        rc = mmc_suspend_host(mmc, state);
+                        rc = mmc_suspend_host(mmc);
                 if (!rc)
                         msmsdcc_writel(host, 0, MMCIMASK0);
                 if (host->clks_on)
diff --git a/drivers/mmc/host/mvsdio.c b/drivers/mmc/host/mvsdio.c
index 34e23489811a..366eefa77c5a 100644
--- a/drivers/mmc/host/mvsdio.c
+++ b/drivers/mmc/host/mvsdio.c
@@ -865,7 +865,7 @@ static int mvsd_suspend(struct platform_device *dev, pm_message_t state)
         int ret = 0;
 
         if (mmc)
-                ret = mmc_suspend_host(mmc, state);
+                ret = mmc_suspend_host(mmc);
 
         return ret;
 }
diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c
index ec18e3b60342..d9d4a72e0ec7 100644
--- a/drivers/mmc/host/mxcmmc.c
+++ b/drivers/mmc/host/mxcmmc.c
@@ -932,7 +932,7 @@ static int mxcmci_suspend(struct platform_device *dev, pm_message_t state)
         int ret = 0;
 
         if (mmc)
-                ret = mmc_suspend_host(mmc, state);
+                ret = mmc_suspend_host(mmc);
 
         return ret;
 }
diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c
index 84d280406341..2b281680e320 100644
--- a/drivers/mmc/host/omap.c
+++ b/drivers/mmc/host/omap.c
@@ -39,30 +39,30 @@
 #include <plat/fpga.h>
 
 #define OMAP_MMC_REG_CMD        0x00
-#define OMAP_MMC_REG_ARGL       0x04
-#define OMAP_MMC_REG_ARGH       0x08
-#define OMAP_MMC_REG_CON        0x0c
-#define OMAP_MMC_REG_STAT       0x10
-#define OMAP_MMC_REG_IE         0x14
-#define OMAP_MMC_REG_CTO        0x18
-#define OMAP_MMC_REG_DTO        0x1c
-#define OMAP_MMC_REG_DATA       0x20
-#define OMAP_MMC_REG_BLEN       0x24
-#define OMAP_MMC_REG_NBLK       0x28
-#define OMAP_MMC_REG_BUF        0x2c
-#define OMAP_MMC_REG_SDIO       0x34
-#define OMAP_MMC_REG_REV        0x3c
-#define OMAP_MMC_REG_RSP0       0x40
-#define OMAP_MMC_REG_RSP1       0x44
-#define OMAP_MMC_REG_RSP2       0x48
-#define OMAP_MMC_REG_RSP3       0x4c
-#define OMAP_MMC_REG_RSP4       0x50
-#define OMAP_MMC_REG_RSP5       0x54
-#define OMAP_MMC_REG_RSP6       0x58
-#define OMAP_MMC_REG_RSP7       0x5c
-#define OMAP_MMC_REG_IOSR       0x60
-#define OMAP_MMC_REG_SYSC       0x64
-#define OMAP_MMC_REG_SYSS       0x68
+#define OMAP_MMC_REG_ARGL       0x01
+#define OMAP_MMC_REG_ARGH       0x02
+#define OMAP_MMC_REG_CON        0x03
+#define OMAP_MMC_REG_STAT       0x04
+#define OMAP_MMC_REG_IE         0x05
+#define OMAP_MMC_REG_CTO        0x06
+#define OMAP_MMC_REG_DTO        0x07
+#define OMAP_MMC_REG_DATA       0x08
+#define OMAP_MMC_REG_BLEN       0x09
+#define OMAP_MMC_REG_NBLK       0x0a
+#define OMAP_MMC_REG_BUF        0x0b
+#define OMAP_MMC_REG_SDIO       0x0d
+#define OMAP_MMC_REG_REV        0x0f
+#define OMAP_MMC_REG_RSP0       0x10
+#define OMAP_MMC_REG_RSP1       0x11
+#define OMAP_MMC_REG_RSP2       0x12
+#define OMAP_MMC_REG_RSP3       0x13
+#define OMAP_MMC_REG_RSP4       0x14
+#define OMAP_MMC_REG_RSP5       0x15
+#define OMAP_MMC_REG_RSP6       0x16
+#define OMAP_MMC_REG_RSP7       0x17
+#define OMAP_MMC_REG_IOSR       0x18
+#define OMAP_MMC_REG_SYSC       0x19
+#define OMAP_MMC_REG_SYSS       0x1a
 
 #define OMAP_MMC_STAT_CARD_ERR          (1 << 14)
 #define OMAP_MMC_STAT_CARD_IRQ          (1 << 13)
@@ -78,8 +78,9 @@
 #define OMAP_MMC_STAT_CARD_BUSY         (1 <<  2)
 #define OMAP_MMC_STAT_END_OF_CMD        (1 <<  0)
 
-#define OMAP_MMC_READ(host, reg)        __raw_readw((host)->virt_base + OMAP_MMC_REG_##reg)
-#define OMAP_MMC_WRITE(host, reg, val)  __raw_writew((val), (host)->virt_base + OMAP_MMC_REG_##reg)
+#define OMAP_MMC_REG(host, reg)         (OMAP_MMC_REG_##reg << (host)->reg_shift)
+#define OMAP_MMC_READ(host, reg)        __raw_readw((host)->virt_base + OMAP_MMC_REG(host, reg))
+#define OMAP_MMC_WRITE(host, reg, val)  __raw_writew((val), (host)->virt_base + OMAP_MMC_REG(host, reg))
 
 /*
  * Command types
@@ -133,6 +134,7 @@ struct mmc_omap_host {
         int                     irq;
         unsigned char           bus_mode;
         unsigned char           hw_bus_mode;
+        unsigned int            reg_shift;
 
         struct work_struct      cmd_abort_work;
         unsigned                abort:1;
@@ -680,9 +682,9 @@ mmc_omap_xfer_data(struct mmc_omap_host *host, int write)
         host->data->bytes_xfered += n;
 
         if (write) {
-                __raw_writesw(host->virt_base + OMAP_MMC_REG_DATA, host->buffer, n);
+                __raw_writesw(host->virt_base + OMAP_MMC_REG(host, DATA), host->buffer, n);
         } else {
-                __raw_readsw(host->virt_base + OMAP_MMC_REG_DATA, host->buffer, n);
+                __raw_readsw(host->virt_base + OMAP_MMC_REG(host, DATA), host->buffer, n);
         }
 }
 
@@ -900,7 +902,7 @@ mmc_omap_prepare_dma(struct mmc_omap_host *host, struct mmc_data *data)
         int dst_port = 0;
         int sync_dev = 0;
 
-        data_addr = host->phys_base + OMAP_MMC_REG_DATA;
+        data_addr = host->phys_base + OMAP_MMC_REG(host, DATA);
         frame = data->blksz;
         count = sg_dma_len(sg);
 
@@ -1493,6 +1495,8 @@ static int __init mmc_omap_probe(struct platform_device *pdev)
                 }
         }
 
+        host->reg_shift = (cpu_is_omap7xx() ? 1 : 2);
+
         return 0;
 
 err_plat_cleanup:
@@ -1557,7 +1561,7 @@ static int mmc_omap_suspend(struct platform_device *pdev, pm_message_t mesg)
                 struct mmc_omap_slot *slot;
 
                 slot = host->slots[i];
-                ret = mmc_suspend_host(slot->mmc, mesg);
+                ret = mmc_suspend_host(slot->mmc);
                 if (ret < 0) {
                         while (--i >= 0) {
                                 slot = host->slots[i];
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index e9caf694c59e..b032828c6126 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -157,12 +157,10 @@ struct omap_hsmmc_host {
          */
         struct  regulator       *vcc;
         struct  regulator       *vcc_aux;
-        struct  semaphore       sem;
         struct  work_struct     mmc_carddetect_work;
         void    __iomem         *base;
         resource_size_t         mapbase;
         spinlock_t              irq_lock; /* Prevent races with irq handler */
-        unsigned long           flags;
         unsigned int            id;
         unsigned int            dma_len;
         unsigned int            dma_sg_idx;
@@ -183,6 +181,7 @@ struct omap_hsmmc_host {
         int                     protect_card;
         int                     reqs_blocked;
         int                     use_reg;
+        int                     req_in_progress;
 
         struct  omap_mmc_platform_data  *pdata;
 };
@@ -524,6 +523,27 @@ static void omap_hsmmc_stop_clock(struct omap_hsmmc_host *host)
                 dev_dbg(mmc_dev(host->mmc), "MMC Clock is not stoped\n");
 }
 
+static void omap_hsmmc_enable_irq(struct omap_hsmmc_host *host)
+{
+        unsigned int irq_mask;
+
+        if (host->use_dma)
+                irq_mask = INT_EN_MASK & ~(BRR_ENABLE | BWR_ENABLE);
+        else
+                irq_mask = INT_EN_MASK;
+
+        OMAP_HSMMC_WRITE(host->base, STAT, STAT_CLEAR);
+        OMAP_HSMMC_WRITE(host->base, ISE, irq_mask);
+        OMAP_HSMMC_WRITE(host->base, IE, irq_mask);
+}
+
+static void omap_hsmmc_disable_irq(struct omap_hsmmc_host *host)
+{
+        OMAP_HSMMC_WRITE(host->base, ISE, 0);
+        OMAP_HSMMC_WRITE(host->base, IE, 0);
+        OMAP_HSMMC_WRITE(host->base, STAT, STAT_CLEAR);
+}
+
 #ifdef CONFIG_PM
 
 /*
@@ -592,9 +612,7 @@ static int omap_hsmmc_context_restore(struct omap_hsmmc_host *host)
                 && time_before(jiffies, timeout))
                 ;
 
-        OMAP_HSMMC_WRITE(host->base, STAT, STAT_CLEAR);
-        OMAP_HSMMC_WRITE(host->base, ISE, INT_EN_MASK);
-        OMAP_HSMMC_WRITE(host->base, IE, INT_EN_MASK);
+        omap_hsmmc_disable_irq(host);
 
         /* Do not initialize card-specific things if the power is off */
         if (host->power_mode == MMC_POWER_OFF)
@@ -697,6 +715,8 @@ static void send_init_stream(struct omap_hsmmc_host *host)
                 return;
 
         disable_irq(host->irq);
+
+        OMAP_HSMMC_WRITE(host->base, IE, INT_EN_MASK);
         OMAP_HSMMC_WRITE(host->base, CON,
                 OMAP_HSMMC_READ(host->base, CON) | INIT_STREAM);
         OMAP_HSMMC_WRITE(host->base, CMD, INIT_STREAM_CMD);
@@ -762,17 +782,7 @@ omap_hsmmc_start_command(struct omap_hsmmc_host *host, struct mmc_command *cmd,
                 mmc_hostname(host->mmc), cmd->opcode, cmd->arg);
         host->cmd = cmd;
 
-        /*
-         * Clear status bits and enable interrupts
-         */
-        OMAP_HSMMC_WRITE(host->base, STAT, STAT_CLEAR);
-        OMAP_HSMMC_WRITE(host->base, ISE, INT_EN_MASK);
-
-        if (host->use_dma)
-                OMAP_HSMMC_WRITE(host->base, IE,
-                                 INT_EN_MASK & ~(BRR_ENABLE | BWR_ENABLE));
-        else
-                OMAP_HSMMC_WRITE(host->base, IE, INT_EN_MASK);
+        omap_hsmmc_enable_irq(host);
 
         host->response_busy = 0;
         if (cmd->flags & MMC_RSP_PRESENT) {
@@ -806,13 +816,7 @@ omap_hsmmc_start_command(struct omap_hsmmc_host *host, struct mmc_command *cmd,
         if (host->use_dma)
                 cmdreg |= DMA_EN;
 
-        /*
-         * In an interrupt context (i.e. STOP command), the spinlock is unlocked
-         * by the interrupt handler, otherwise (i.e. for a new request) it is
-         * unlocked here.
-         */
-        if (!in_interrupt())
-                spin_unlock_irqrestore(&host->irq_lock, host->flags);
+        host->req_in_progress = 1;
 
         OMAP_HSMMC_WRITE(host->base, ARG, cmd->arg);
         OMAP_HSMMC_WRITE(host->base, CMD, cmdreg);
@@ -827,6 +831,23 @@ omap_hsmmc_get_dma_dir(struct omap_hsmmc_host *host, struct mmc_data *data)
                 return DMA_FROM_DEVICE;
 }
 
+static void omap_hsmmc_request_done(struct omap_hsmmc_host *host, struct mmc_request *mrq)
+{
+        int dma_ch;
+
+        spin_lock(&host->irq_lock);
+        host->req_in_progress = 0;
+        dma_ch = host->dma_ch;
+        spin_unlock(&host->irq_lock);
+
+        omap_hsmmc_disable_irq(host);
+        /* Do not complete the request if DMA is still in progress */
+        if (mrq->data && host->use_dma && dma_ch != -1)
+                return;
+        host->mrq = NULL;
+        mmc_request_done(host->mmc, mrq);
+}
+
 /*
  * Notify the transfer complete to MMC core
  */
@@ -843,25 +864,19 @@ omap_hsmmc_xfer_done(struct omap_hsmmc_host *host, struct mmc_data *data)
                         return;
                 }
 
-                host->mrq = NULL;
-                mmc_request_done(host->mmc, mrq);
+                omap_hsmmc_request_done(host, mrq);
                 return;
         }
 
         host->data = NULL;
 
-        if (host->use_dma && host->dma_ch != -1)
-                dma_unmap_sg(mmc_dev(host->mmc), data->sg, host->dma_len,
-                        omap_hsmmc_get_dma_dir(host, data));
-
         if (!data->error)
                 data->bytes_xfered += data->blocks * (data->blksz);
         else
                 data->bytes_xfered = 0;
 
         if (!data->stop) {
-                host->mrq = NULL;
-                mmc_request_done(host->mmc, data->mrq);
+                omap_hsmmc_request_done(host, data->mrq);
                 return;
         }
         omap_hsmmc_start_command(host, data->stop, NULL);
@@ -887,10 +902,8 @@ omap_hsmmc_cmd_done(struct omap_hsmmc_host *host, struct mmc_command *cmd)
                         cmd->resp[0] = OMAP_HSMMC_READ(host->base, RSP10);
                 }
         }
-        if ((host->data == NULL && !host->response_busy) || cmd->error) {
-                host->mrq = NULL;
-                mmc_request_done(host->mmc, cmd->mrq);
-        }
+        if ((host->data == NULL && !host->response_busy) || cmd->error)
+                omap_hsmmc_request_done(host, cmd->mrq);
 }
 
 /*
@@ -898,14 +911,19 @@ omap_hsmmc_cmd_done(struct omap_hsmmc_host *host, struct mmc_command *cmd)
  */
 static void omap_hsmmc_dma_cleanup(struct omap_hsmmc_host *host, int errno)
 {
+        int dma_ch;
+
         host->data->error = errno;
 
-        if (host->use_dma && host->dma_ch != -1) {
+        spin_lock(&host->irq_lock);
+        dma_ch = host->dma_ch;
+        host->dma_ch = -1;
+        spin_unlock(&host->irq_lock);
+
+        if (host->use_dma && dma_ch != -1) {
                 dma_unmap_sg(mmc_dev(host->mmc), host->data->sg, host->dma_len,
                         omap_hsmmc_get_dma_dir(host, host->data));
-                omap_free_dma(host->dma_ch);
-                host->dma_ch = -1;
-                up(&host->sem);
+                omap_free_dma(dma_ch);
         }
         host->data = NULL;
 }
@@ -967,28 +985,21 @@ static inline void omap_hsmmc_reset_controller_fsm(struct omap_hsmmc_host *host,
                         __func__);
 }
 
-/*
- * MMC controller IRQ handler
- */
-static irqreturn_t omap_hsmmc_irq(int irq, void *dev_id)
+static void omap_hsmmc_do_irq(struct omap_hsmmc_host *host, int status)
 {
-        struct omap_hsmmc_host *host = dev_id;
         struct mmc_data *data;
-        int end_cmd = 0, end_trans = 0, status;
-
-        spin_lock(&host->irq_lock);
-
-        if (host->mrq == NULL) {
-                OMAP_HSMMC_WRITE(host->base, STAT,
-                        OMAP_HSMMC_READ(host->base, STAT));
-                /* Flush posted write */
-                OMAP_HSMMC_READ(host->base, STAT);
-                spin_unlock(&host->irq_lock);
-                return IRQ_HANDLED;
+        int end_cmd = 0, end_trans = 0;
+
+        if (!host->req_in_progress) {
+                do {
+                        OMAP_HSMMC_WRITE(host->base, STAT, status);
+                        /* Flush posted write */
+                        status = OMAP_HSMMC_READ(host->base, STAT);
+                } while (status & INT_EN_MASK);
+                return;
         }
 
         data = host->data;
-        status = OMAP_HSMMC_READ(host->base, STAT);
         dev_dbg(mmc_dev(host->mmc), "IRQ Status is %x\n", status);
 
         if (status & ERR) {
@@ -1041,15 +1052,27 @@ static irqreturn_t omap_hsmmc_irq(int irq, void *dev_id)
         }
 
         OMAP_HSMMC_WRITE(host->base, STAT, status);
-        /* Flush posted write */
-        OMAP_HSMMC_READ(host->base, STAT);
 
         if (end_cmd || ((status & CC) && host->cmd))
                 omap_hsmmc_cmd_done(host, host->cmd);
         if ((end_trans || (status & TC)) && host->mrq)
                 omap_hsmmc_xfer_done(host, data);
+}
 
-        spin_unlock(&host->irq_lock);
+/*
+ * MMC controller IRQ handler
+ */
+static irqreturn_t omap_hsmmc_irq(int irq, void *dev_id)
+{
+        struct omap_hsmmc_host *host = dev_id;
+        int status;
+
+        status = OMAP_HSMMC_READ(host->base, STAT);
+        do {
+                omap_hsmmc_do_irq(host, status);
+                /* Flush posted write */
+                status = OMAP_HSMMC_READ(host->base, STAT);
+        } while (status & INT_EN_MASK);
 
         return IRQ_HANDLED;
 }
@@ -1244,31 +1267,47 @@ static void omap_hsmmc_config_dma_params(struct omap_hsmmc_host *host,
 /*
  * DMA call back function
  */
-static void omap_hsmmc_dma_cb(int lch, u16 ch_status, void *data)
+static void omap_hsmmc_dma_cb(int lch, u16 ch_status, void *cb_data)
 {
-        struct omap_hsmmc_host *host = data;
+        struct omap_hsmmc_host *host = cb_data;
+        struct mmc_data *data = host->mrq->data;
+        int dma_ch, req_in_progress;
 
         if (ch_status & OMAP2_DMA_MISALIGNED_ERR_IRQ)
                 dev_dbg(mmc_dev(host->mmc), "MISALIGNED_ADRS_ERR\n");
 
-        if (host->dma_ch < 0)
+        spin_lock(&host->irq_lock);
+        if (host->dma_ch < 0) {
+                spin_unlock(&host->irq_lock);
                 return;
+        }
 
         host->dma_sg_idx++;
         if (host->dma_sg_idx < host->dma_len) {
                 /* Fire up the next transfer. */
-                omap_hsmmc_config_dma_params(host, host->data,
-                                           host->data->sg + host->dma_sg_idx);
+                omap_hsmmc_config_dma_params(host, data,
+                                           data->sg + host->dma_sg_idx);
+                spin_unlock(&host->irq_lock);
                 return;
         }
 
-        omap_free_dma(host->dma_ch);
+        dma_unmap_sg(mmc_dev(host->mmc), data->sg, host->dma_len,
+                omap_hsmmc_get_dma_dir(host, data));
+
+        req_in_progress = host->req_in_progress;
+        dma_ch = host->dma_ch;
         host->dma_ch = -1;
-        /*
-         * DMA Callback: run in interrupt context.
-         * mutex_unlock will throw a kernel warning if used.
-         */
-        up(&host->sem);
+        spin_unlock(&host->irq_lock);
+
+        omap_free_dma(dma_ch);
+
+        /* If DMA has finished after TC, complete the request */
+        if (!req_in_progress) {
+                struct mmc_request *mrq = host->mrq;
+
+                host->mrq = NULL;
+                mmc_request_done(host->mmc, mrq);
+        }
 }
 
 /*
@@ -1277,7 +1316,7 @@ static void omap_hsmmc_dma_cb(int lch, u16 ch_status, void *data)
 static int omap_hsmmc_start_dma_transfer(struct omap_hsmmc_host *host,
                                         struct mmc_request *req)
 {
-        int dma_ch = 0, ret = 0, err = 1, i;
+        int dma_ch = 0, ret = 0, i;
         struct mmc_data *data = req->data;
 
         /* Sanity check: all the SG entries must be aligned by block size. */
@@ -1294,23 +1333,7 @@ static int omap_hsmmc_start_dma_transfer(struct omap_hsmmc_host *host,
                  */
                 return -EINVAL;
 
-        /*
-         * If for some reason the DMA transfer is still active,
-         * we wait for timeout period and free the dma
-         */
-        if (host->dma_ch != -1) {
-                set_current_state(TASK_UNINTERRUPTIBLE);
-                schedule_timeout(100);
-                if (down_trylock(&host->sem)) {
-                        omap_free_dma(host->dma_ch);
-                        host->dma_ch = -1;
-                        up(&host->sem);
-                        return err;
-                }
-        } else {
-                if (down_trylock(&host->sem))
-                        return err;
-        }
+        BUG_ON(host->dma_ch != -1);
 
         ret = omap_request_dma(omap_hsmmc_get_dma_sync_dev(host, data),
                                "MMC/SD", omap_hsmmc_dma_cb, host, &dma_ch);
@@ -1410,37 +1433,27 @@ static void omap_hsmmc_request(struct mmc_host *mmc, struct mmc_request *req)
         struct omap_hsmmc_host *host = mmc_priv(mmc);
         int err;
 
-        /*
-         * Prevent races with the interrupt handler because of unexpected
-         * interrupts, but not if we are already in interrupt context i.e.
-         * retries.
-         */
-        if (!in_interrupt()) {
-                spin_lock_irqsave(&host->irq_lock, host->flags);
-                /*
-                 * Protect the card from I/O if there is a possibility
-                 * it can be removed.
-                 */
-                if (host->protect_card) {
-                        if (host->reqs_blocked < 3) {
-                                /*
-                                 * Ensure the controller is left in a consistent
-                                 * state by resetting the command and data state
-                                 * machines.
-                                 */
-                                omap_hsmmc_reset_controller_fsm(host, SRD);
-                                omap_hsmmc_reset_controller_fsm(host, SRC);
-                                host->reqs_blocked += 1;
-                        }
-                        req->cmd->error = -EBADF;
-                        if (req->data)
-                                req->data->error = -EBADF;
-                        spin_unlock_irqrestore(&host->irq_lock, host->flags);
-                        mmc_request_done(mmc, req);
-                        return;
-                } else if (host->reqs_blocked)
-                        host->reqs_blocked = 0;
-        }
+        BUG_ON(host->req_in_progress);
+        BUG_ON(host->dma_ch != -1);
+        if (host->protect_card) {
+                if (host->reqs_blocked < 3) {
+                        /*
+                         * Ensure the controller is left in a consistent
+                         * state by resetting the command and data state
+                         * machines.
+                         */
+                        omap_hsmmc_reset_controller_fsm(host, SRD);
+                        omap_hsmmc_reset_controller_fsm(host, SRC);
+                        host->reqs_blocked += 1;
+                }
+                req->cmd->error = -EBADF;
+                if (req->data)
+                        req->data->error = -EBADF;
+                req->cmd->retries = 0;
+                mmc_request_done(mmc, req);
+                return;
+        } else if (host->reqs_blocked)
+                host->reqs_blocked = 0;
         WARN_ON(host->mrq != NULL);
         host->mrq = req;
         err = omap_hsmmc_prepare_data(host, req);
@@ -1449,8 +1462,6 @@ static void omap_hsmmc_request(struct mmc_host *mmc, struct mmc_request *req)
                 if (req->data)
                         req->data->error = err;
                 host->mrq = NULL;
-                if (!in_interrupt())
-                        spin_unlock_irqrestore(&host->irq_lock, host->flags);
                 mmc_request_done(mmc, req);
                 return;
         }
@@ -2019,7 +2030,6 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev)
         mmc->f_min      = 400000;
         mmc->f_max      = 52000000;
 
-        sema_init(&host->sem, 1);
         spin_lock_init(&host->irq_lock);
 
         host->iclk = clk_get(&pdev->dev, "ick");
@@ -2162,8 +2172,7 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev)
                 }
         }
 
-        OMAP_HSMMC_WRITE(host->base, ISE, INT_EN_MASK);
-        OMAP_HSMMC_WRITE(host->base, IE, INT_EN_MASK);
+        omap_hsmmc_disable_irq(host);
 
         mmc_host_lazy_disable(host->mmc);
 
@@ -2258,10 +2267,12 @@ static int omap_hsmmc_remove(struct platform_device *pdev)
 }
 
 #ifdef CONFIG_PM
-static int omap_hsmmc_suspend(struct platform_device *pdev, pm_message_t state)
+static int omap_hsmmc_suspend(struct device *dev)
 {
         int ret = 0;
+        struct platform_device *pdev = to_platform_device(dev);
         struct omap_hsmmc_host *host = platform_get_drvdata(pdev);
+        pm_message_t state = PMSG_SUSPEND; /* unused by MMC core */
 
         if (host && host->suspended)
                 return 0;
@@ -2281,12 +2292,9 @@ static int omap_hsmmc_suspend(struct platform_device *pdev, pm_message_t state)
                 }
                 cancel_work_sync(&host->mmc_carddetect_work);
                 mmc_host_enable(host->mmc);
-                ret = mmc_suspend_host(host->mmc, state);
+                ret = mmc_suspend_host(host->mmc);
                 if (ret == 0) {
-                        OMAP_HSMMC_WRITE(host->base, ISE, 0);
-                        OMAP_HSMMC_WRITE(host->base, IE, 0);
-
-
+                        omap_hsmmc_disable_irq(host);
                         OMAP_HSMMC_WRITE(host->base, HCTL,
                                 OMAP_HSMMC_READ(host->base, HCTL) & ~SDBP);
                         mmc_host_disable(host->mmc);
@@ -2310,9 +2318,10 @@ static int omap_hsmmc_suspend(struct platform_device *pdev, pm_message_t state)
 }
 
 /* Routine to resume the MMC device */
-static int omap_hsmmc_resume(struct platform_device *pdev)
+static int omap_hsmmc_resume(struct device *dev)
 {
         int ret = 0;
+        struct platform_device *pdev = to_platform_device(dev);
         struct omap_hsmmc_host *host = platform_get_drvdata(pdev);
 
         if (host && !host->suspended)
@@ -2363,13 +2372,17 @@ clk_en_err:
 #define omap_hsmmc_resume               NULL
 #endif
 
-static struct platform_driver omap_hsmmc_driver = {
-        .remove         = omap_hsmmc_remove,
+static struct dev_pm_ops omap_hsmmc_dev_pm_ops = {
         .suspend        = omap_hsmmc_suspend,
         .resume         = omap_hsmmc_resume,
+};
+
+static struct platform_driver omap_hsmmc_driver = {
+        .remove         = omap_hsmmc_remove,
         .driver         = {
                 .name = DRIVER_NAME,
                 .owner = THIS_MODULE,
+                .pm = &omap_hsmmc_dev_pm_ops,
         },
 };
 
diff --git a/drivers/mmc/host/pxamci.c b/drivers/mmc/host/pxamci.c
index e4f00e70a749..0a4e43f37140 100644
--- a/drivers/mmc/host/pxamci.c
+++ b/drivers/mmc/host/pxamci.c
@@ -813,7 +813,7 @@ static int pxamci_suspend(struct device *dev)
         int ret = 0;
 
         if (mmc)
-                ret = mmc_suspend_host(mmc, PMSG_SUSPEND);
+                ret = mmc_suspend_host(mmc);
 
         return ret;
 }
diff --git a/drivers/mmc/host/s3cmci.c b/drivers/mmc/host/s3cmci.c
index 2fdf7689ae6c..2e16e0a90a5e 100644
--- a/drivers/mmc/host/s3cmci.c
+++ b/drivers/mmc/host/s3cmci.c
@@ -1881,9 +1881,8 @@ MODULE_DEVICE_TABLE(platform, s3cmci_driver_ids);
 static int s3cmci_suspend(struct device *dev)
 {
         struct mmc_host *mmc = platform_get_drvdata(to_platform_device(dev));
-        struct pm_message event = { PM_EVENT_SUSPEND };
 
-        return mmc_suspend_host(mmc, event);
+        return mmc_suspend_host(mmc);
 }
 
 static int s3cmci_resume(struct device *dev)
diff --git a/drivers/mmc/host/sdhci-of-core.c b/drivers/mmc/host/sdhci-of-core.c
index 7802a543d8fc..a2e9820cd42f 100644
--- a/drivers/mmc/host/sdhci-of-core.c
+++ b/drivers/mmc/host/sdhci-of-core.c
@@ -89,7 +89,7 @@ static int sdhci_of_suspend(struct of_device *ofdev, pm_message_t state)
 {
         struct sdhci_host *host = dev_get_drvdata(&ofdev->dev);
 
-        return mmc_suspend_host(host->mmc, state);
+        return mmc_suspend_host(host->mmc);
 }
 
 static int sdhci_of_resume(struct of_device *ofdev)
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c
index d5b11a17e648..c8623de13af3 100644
--- a/drivers/mmc/host/sdhci-of-esdhc.c
+++ b/drivers/mmc/host/sdhci-of-esdhc.c
@@ -129,12 +129,12 @@ struct sdhci_of_data sdhci_esdhc = {
                   SDHCI_QUIRK_RESTORE_IRQS_AFTER_RESET |
                   SDHCI_QUIRK_NO_CARD_NO_RESET,
         .ops = {
-                .readl = sdhci_be32bs_readl,
-                .readw = esdhc_readw,
-                .readb = sdhci_be32bs_readb,
-                .writel = sdhci_be32bs_writel,
-                .writew = esdhc_writew,
-                .writeb = esdhc_writeb,
+                .read_l = sdhci_be32bs_readl,
+                .read_w = esdhc_readw,
+                .read_b = sdhci_be32bs_readb,
+                .write_l = sdhci_be32bs_writel,
+                .write_w = esdhc_writew,
+                .write_b = esdhc_writeb,
                 .set_clock = esdhc_set_clock,
                 .enable_dma = esdhc_enable_dma,
                 .get_max_clock = esdhc_get_max_clock,
diff --git a/drivers/mmc/host/sdhci-of-hlwd.c b/drivers/mmc/host/sdhci-of-hlwd.c
index 35117f3ed757..68ddb7546ae2 100644
--- a/drivers/mmc/host/sdhci-of-hlwd.c
+++ b/drivers/mmc/host/sdhci-of-hlwd.c
@@ -55,11 +55,11 @@ struct sdhci_of_data sdhci_hlwd = {
         .quirks = SDHCI_QUIRK_32BIT_DMA_ADDR |
                   SDHCI_QUIRK_32BIT_DMA_SIZE,
         .ops = {
-                .readl = sdhci_be32bs_readl,
-                .readw = sdhci_be32bs_readw,
-                .readb = sdhci_be32bs_readb,
-                .writel = sdhci_hlwd_writel,
-                .writew = sdhci_hlwd_writew,
-                .writeb = sdhci_hlwd_writeb,
+                .read_l = sdhci_be32bs_readl,
+                .read_w = sdhci_be32bs_readw,
+                .read_b = sdhci_be32bs_readb,
+                .write_l = sdhci_hlwd_writel,
+                .write_w = sdhci_hlwd_writew,
+                .write_b = sdhci_hlwd_writeb,
         },
 };
diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c
index 6701af629c30..65483fdea45b 100644
--- a/drivers/mmc/host/sdhci-pci.c
+++ b/drivers/mmc/host/sdhci-pci.c
@@ -628,7 +628,7 @@ static struct sdhci_pci_slot * __devinit sdhci_pci_probe_slot(
         host = sdhci_alloc_host(&pdev->dev, sizeof(struct sdhci_pci_slot));
         if (IS_ERR(host)) {
                 dev_err(&pdev->dev, "cannot allocate host\n");
-                return ERR_PTR(PTR_ERR(host));
+                return ERR_CAST(host);
         }
 
         slot = sdhci_priv(host);
diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
index 297f40ae6ad5..b6ee0d719698 100644
--- a/drivers/mmc/host/sdhci-pltfm.c
+++ b/drivers/mmc/host/sdhci-pltfm.c
@@ -29,6 +29,7 @@
 #include <linux/mmc/host.h>
 
 #include <linux/io.h>
+#include <linux/sdhci-pltfm.h>
 
 #include "sdhci.h"
 
@@ -49,19 +50,18 @@ static struct sdhci_ops sdhci_pltfm_ops = {
 
 static int __devinit sdhci_pltfm_probe(struct platform_device *pdev)
 {
+        struct sdhci_pltfm_data *pdata = pdev->dev.platform_data;
         struct sdhci_host *host;
         struct resource *iomem;
         int ret;
 
-        BUG_ON(pdev == NULL);
-
         iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
         if (!iomem) {
                 ret = -ENOMEM;
                 goto err;
         }
 
-        if (resource_size(iomem) != 0x100)
+        if (resource_size(iomem) < 0x100)
                 dev_err(&pdev->dev, "Invalid iomem size. You may "
                         "experience problems.\n");
 
@@ -76,7 +76,12 @@ static int __devinit sdhci_pltfm_probe(struct platform_device *pdev)
         }
 
         host->hw_name = "platform";
-        host->ops = &sdhci_pltfm_ops;
+        if (pdata && pdata->ops)
+                host->ops = pdata->ops;
+        else
+                host->ops = &sdhci_pltfm_ops;
+        if (pdata)
+                host->quirks = pdata->quirks;
         host->irq = platform_get_irq(pdev, 0);
 
         if (!request_mem_region(iomem->start, resource_size(iomem),
@@ -93,6 +98,12 @@ static int __devinit sdhci_pltfm_probe(struct platform_device *pdev)
                 goto err_remap;
         }
 
+        if (pdata && pdata->init) {
+                ret = pdata->init(host);
+                if (ret)
+                        goto err_plat_init;
+        }
+
         ret = sdhci_add_host(host);
         if (ret)
                 goto err_add_host;
@@ -102,6 +113,9 @@ static int __devinit sdhci_pltfm_probe(struct platform_device *pdev)
         return 0;
 
 err_add_host:
+        if (pdata && pdata->exit)
+                pdata->exit(host);
+err_plat_init:
         iounmap(host->ioaddr);
 err_remap:
         release_mem_region(iomem->start, resource_size(iomem));
@@ -114,6 +128,7 @@ err:
 
 static int __devexit sdhci_pltfm_remove(struct platform_device *pdev)
 {
+        struct sdhci_pltfm_data *pdata = pdev->dev.platform_data;
         struct sdhci_host *host = platform_get_drvdata(pdev);
         struct resource *iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
         int dead;
@@ -125,6 +140,8 @@ static int __devexit sdhci_pltfm_remove(struct platform_device *pdev)
                 dead = 1;
 
         sdhci_remove_host(host, dead);
+        if (pdata && pdata->exit)
+                pdata->exit(host);
         iounmap(host->ioaddr);
         release_mem_region(iomem->start, resource_size(iomem));
         sdhci_free_host(host);
@@ -165,4 +182,3 @@ MODULE_DESCRIPTION("Secure Digital Host Controller Interface platform driver");
 MODULE_AUTHOR("Mocean Laboratories <info@mocean-labs.com>");
 MODULE_LICENSE("GPL v2");
 MODULE_ALIAS("platform:sdhci");
-
diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
index 2136794c0cfa..af217924a76e 100644
--- a/drivers/mmc/host/sdhci-s3c.c
+++ b/drivers/mmc/host/sdhci-s3c.c
@@ -317,12 +317,7 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev)
         host->irq = irq;
 
         /* Setup quirks for the controller */
-
-        /* Currently with ADMA enabled we are getting some length
-         * interrupts that are not being dealt with, do disable
-         * ADMA until this is sorted out. */
-        host->quirks |= SDHCI_QUIRK_BROKEN_ADMA;
-        host->quirks |= SDHCI_QUIRK_32BIT_ADMA_SIZE;
+        host->quirks |= SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC;
 
 #ifndef CONFIG_MMC_SDHCI_S3C_DMA
 
@@ -330,9 +325,6 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev)
          * support as well. */
         host->quirks |= SDHCI_QUIRK_BROKEN_DMA;
 
-        /* PIO currently has problems with multi-block IO */
-        host->quirks |= SDHCI_QUIRK_NO_MULTIBLOCK;
-
 #endif /* CONFIG_MMC_SDHCI_S3C_DMA */
 
         /* It seems we do not get an DATA transfer complete on non-busy
diff --git a/drivers/mmc/host/sdhci-spear.c b/drivers/mmc/host/sdhci-spear.c
new file mode 100644
index 000000000000..d70c54c7b70a
--- /dev/null
+++ b/drivers/mmc/host/sdhci-spear.c
@@ -0,0 +1,298 @@
+/*
+ * drivers/mmc/host/sdhci-spear.c
+ *
+ * Support of SDHCI platform devices for spear soc family
+ *
+ * Copyright (C) 2010 ST Microelectronics
+ * Viresh Kumar<viresh.kumar@st.com>
+ *
+ * Inspired by sdhci-pltfm.c
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/gpio.h>
+#include <linux/highmem.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/mmc/host.h>
+#include <linux/mmc/sdhci-spear.h>
+#include <linux/io.h>
+#include "sdhci.h"
+
+struct spear_sdhci {
+        struct clk *clk;
+        struct sdhci_plat_data *data;
+};
+
+/* sdhci ops */
+static struct sdhci_ops sdhci_pltfm_ops = {
+        /* Nothing to do for now. */
+};
+
+/* gpio card detection interrupt handler */
+static irqreturn_t sdhci_gpio_irq(int irq, void *dev_id)
+{
+        struct platform_device *pdev = dev_id;
+        struct sdhci_host *host = platform_get_drvdata(pdev);
+        struct spear_sdhci *sdhci = dev_get_platdata(&pdev->dev);
+        unsigned long gpio_irq_type;
+        int val;
+
+        val = gpio_get_value(sdhci->data->card_int_gpio);
+
+        /* val == 1 -> card removed, val == 0 -> card inserted */
+        /* if card removed - set irq for low level, else vice versa */
+        gpio_irq_type = val ? IRQF_TRIGGER_LOW : IRQF_TRIGGER_HIGH;
+        set_irq_type(irq, gpio_irq_type);
+
+        if (sdhci->data->card_power_gpio >= 0) {
+                if (!sdhci->data->power_always_enb) {
+                        /* if card inserted, give power, otherwise remove it */
+                        val = sdhci->data->power_active_high ? !val : val ;
+                        gpio_set_value(sdhci->data->card_power_gpio, val);
+                }
+        }
+
+        /* inform sdhci driver about card insertion/removal */
+        tasklet_schedule(&host->card_tasklet);
+
+        return IRQ_HANDLED;
+}
+
+static int __devinit sdhci_probe(struct platform_device *pdev)
+{
+        struct sdhci_host *host;
+        struct resource *iomem;
+        struct spear_sdhci *sdhci;
+        int ret;
+
+        BUG_ON(pdev == NULL);
+
+        iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+        if (!iomem) {
+                ret = -ENOMEM;
+                dev_dbg(&pdev->dev, "memory resource not defined\n");
+                goto err;
+        }
+
+        if (!request_mem_region(iomem->start, resource_size(iomem),
+                                "spear-sdhci")) {
+                ret = -EBUSY;
+                dev_dbg(&pdev->dev, "cannot request region\n");
+                goto err;
+        }
+
+        sdhci = kzalloc(sizeof(*sdhci), GFP_KERNEL);
+        if (!sdhci) {
+                ret = -ENOMEM;
+                dev_dbg(&pdev->dev, "cannot allocate memory for sdhci\n");
+                goto err_kzalloc;
+        }
+
+        /* clk enable */
+        sdhci->clk = clk_get(&pdev->dev, NULL);
+        if (IS_ERR(sdhci->clk)) {
+                ret = PTR_ERR(sdhci->clk);
+                dev_dbg(&pdev->dev, "Error getting clock\n");
+                goto err_clk_get;
+        }
+
+        ret = clk_enable(sdhci->clk);
+        if (ret) {
+                dev_dbg(&pdev->dev, "Error enabling clock\n");
+                goto err_clk_enb;
+        }
+
+        /* overwrite platform_data */
+        sdhci->data = dev_get_platdata(&pdev->dev);
+        pdev->dev.platform_data = sdhci;
+
+        if (pdev->dev.parent)
+                host = sdhci_alloc_host(pdev->dev.parent, 0);
+        else
+                host = sdhci_alloc_host(&pdev->dev, 0);
+
+        if (IS_ERR(host)) {
+                ret = PTR_ERR(host);
+                dev_dbg(&pdev->dev, "error allocating host\n");
+                goto err_alloc_host;
+        }
+
+        host->hw_name = "sdhci";
+        host->ops = &sdhci_pltfm_ops;
+        host->irq = platform_get_irq(pdev, 0);
+        host->quirks = SDHCI_QUIRK_BROKEN_ADMA;
+
+        host->ioaddr = ioremap(iomem->start, resource_size(iomem));
+        if (!host->ioaddr) {
+                ret = -ENOMEM;
+                dev_dbg(&pdev->dev, "failed to remap registers\n");
+                goto err_ioremap;
+        }
+
+        ret = sdhci_add_host(host);
+        if (ret) {
+                dev_dbg(&pdev->dev, "error adding host\n");
+                goto err_add_host;
+        }
+
+        platform_set_drvdata(pdev, host);
+
+        /*
+         * It is optional to use GPIOs for sdhci Power control & sdhci card
+         * interrupt detection. If sdhci->data is NULL, then use original sdhci
+         * lines otherwise GPIO lines.
+         * If GPIO is selected for power control, then power should be disabled
+         * after card removal and should be enabled when card insertion
+         * interrupt occurs
+         */
+        if (!sdhci->data)
+                return 0;
+
+        if (sdhci->data->card_power_gpio >= 0) {
+                int val = 0;
+
+                ret = gpio_request(sdhci->data->card_power_gpio, "sdhci");
+                if (ret < 0) {
+                        dev_dbg(&pdev->dev, "gpio request fail: %d\n",
+                                        sdhci->data->card_power_gpio);
+                        goto err_pgpio_request;
+                }
+
+                if (sdhci->data->power_always_enb)
+                        val = sdhci->data->power_active_high;
+                else
+                        val = !sdhci->data->power_active_high;
+
+                ret = gpio_direction_output(sdhci->data->card_power_gpio, val);
+                if (ret) {
+                        dev_dbg(&pdev->dev, "gpio set direction fail: %d\n",
+                                        sdhci->data->card_power_gpio);
+                        goto err_pgpio_direction;
+                }
+
+                gpio_set_value(sdhci->data->card_power_gpio, 1);
+        }
+
+        if (sdhci->data->card_int_gpio >= 0) {
+                ret = gpio_request(sdhci->data->card_int_gpio, "sdhci");
+                if (ret < 0) {
+                        dev_dbg(&pdev->dev, "gpio request fail: %d\n",
+                                        sdhci->data->card_int_gpio);
+                        goto err_igpio_request;
+                }
+
+                ret = gpio_direction_input(sdhci->data->card_int_gpio);
+                if (ret) {
+                        dev_dbg(&pdev->dev, "gpio set direction fail: %d\n",
+                                        sdhci->data->card_int_gpio);
+                        goto err_igpio_direction;
+                }
+                ret = request_irq(gpio_to_irq(sdhci->data->card_int_gpio),
+                                sdhci_gpio_irq, IRQF_TRIGGER_LOW,
+                                mmc_hostname(host->mmc), pdev);
+                if (ret) {
+                        dev_dbg(&pdev->dev, "gpio request irq fail: %d\n",
+                                        sdhci->data->card_int_gpio);
+                        goto err_igpio_request_irq;
+                }
+
+        }
+
+        return 0;
+
+err_igpio_request_irq:
+err_igpio_direction:
+        if (sdhci->data->card_int_gpio >= 0)
+                gpio_free(sdhci->data->card_int_gpio);
+err_igpio_request:
+err_pgpio_direction:
+        if (sdhci->data->card_power_gpio >= 0)
+                gpio_free(sdhci->data->card_power_gpio);
+err_pgpio_request:
+        platform_set_drvdata(pdev, NULL);
+        sdhci_remove_host(host, 1);
+err_add_host:
+        iounmap(host->ioaddr);
+err_ioremap:
+        sdhci_free_host(host);
+err_alloc_host:
+        clk_disable(sdhci->clk);
+err_clk_enb:
+        clk_put(sdhci->clk);
+err_clk_get:
+        kfree(sdhci);
+err_kzalloc:
+        release_mem_region(iomem->start, resource_size(iomem));
+err:
+        dev_err(&pdev->dev, "spear-sdhci probe failed: %d\n", ret);
+        return ret;
+}
+
+static int __devexit sdhci_remove(struct platform_device *pdev)
+{
+        struct sdhci_host *host = platform_get_drvdata(pdev);
+        struct resource *iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+        struct spear_sdhci *sdhci = dev_get_platdata(&pdev->dev);
+        int dead;
+        u32 scratch;
+
+        if (sdhci->data) {
+                if (sdhci->data->card_int_gpio >= 0) {
+                        free_irq(gpio_to_irq(sdhci->data->card_int_gpio), pdev);
+                        gpio_free(sdhci->data->card_int_gpio);
+                }
+
+                if (sdhci->data->card_power_gpio >= 0)
+                        gpio_free(sdhci->data->card_power_gpio);
+        }
+
+        platform_set_drvdata(pdev, NULL);
+        dead = 0;
+        scratch = readl(host->ioaddr + SDHCI_INT_STATUS);
+        if (scratch == (u32)-1)
+                dead = 1;
+
+        sdhci_remove_host(host, dead);
+        iounmap(host->ioaddr);
+        sdhci_free_host(host);
+        clk_disable(sdhci->clk);
+        clk_put(sdhci->clk);
+        kfree(sdhci);
+        if (iomem)
+                release_mem_region(iomem->start, resource_size(iomem));
+
+        return 0;
+}
+
+static struct platform_driver sdhci_driver = {
+        .driver = {
+                .name   = "sdhci",
+                .owner  = THIS_MODULE,
+        },
+        .probe          = sdhci_probe,
+        .remove         = __devexit_p(sdhci_remove),
+};
+
+static int __init sdhci_init(void)
+{
+        return platform_driver_register(&sdhci_driver);
+}
+module_init(sdhci_init);
+
+static void __exit sdhci_exit(void)
+{
+        platform_driver_unregister(&sdhci_driver);
+}
+module_exit(sdhci_exit);
+
+MODULE_DESCRIPTION("SPEAr Secure Digital Host Controller Interface driver");
+MODULE_AUTHOR("Viresh Kumar <viresh.kumar@st.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 9d4fdfa685e5..c6d1bd8d4ac4 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -496,12 +496,22 @@ static int sdhci_adma_table_pre(struct sdhci_host *host,
                 WARN_ON((desc - host->adma_desc) > (128 * 2 + 1) * 4);
         }
 
-        /*
-         * Add a terminating entry.
-         */
+        if (host->quirks & SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC) {
+                /*
+                * Mark the last descriptor as the terminating descriptor
+                */
+                if (desc != host->adma_desc) {
+                        desc -= 8;
+                        desc[0] |= 0x2; /* end */
+                }
+        } else {
+                /*
+                * Add a terminating entry.
+                */
 
-        /* nop, end, valid */
-        sdhci_set_adma_desc(desc, 0, 0, 0x3);
+                /* nop, end, valid */
+                sdhci_set_adma_desc(desc, 0, 0, 0x3);
+        }
 
         /*
          * Resync align buffer as we might have changed it.
@@ -1587,7 +1597,7 @@ int sdhci_suspend_host(struct sdhci_host *host, pm_message_t state)
 
         sdhci_disable_card_detection(host);
 
-        ret = mmc_suspend_host(host->mmc, state);
+        ret = mmc_suspend_host(host->mmc);
         if (ret)
                 return ret;
 
@@ -1744,7 +1754,8 @@ int sdhci_add_host(struct sdhci_host *host)
         host->max_clk =
                 (caps & SDHCI_CLOCK_BASE_MASK) >> SDHCI_CLOCK_BASE_SHIFT;
         host->max_clk *= 1000000;
-        if (host->max_clk == 0) {
+        if (host->max_clk == 0 || host->quirks &
+                        SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN) {
                 if (!host->ops->get_max_clock) {
                         printk(KERN_ERR
                                "%s: Hardware doesn't specify base clock "
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index 842f46f94284..c8468134adc9 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -127,7 +127,7 @@
 #define  SDHCI_INT_DATA_MASK    (SDHCI_INT_DATA_END | SDHCI_INT_DMA_END | \
                 SDHCI_INT_DATA_AVAIL | SDHCI_INT_SPACE_AVAIL | \
                 SDHCI_INT_DATA_TIMEOUT | SDHCI_INT_DATA_CRC | \
-                SDHCI_INT_DATA_END_BIT | SDHCI_ADMA_ERROR)
+                SDHCI_INT_DATA_END_BIT | SDHCI_INT_ADMA_ERROR)
 #define SDHCI_INT_ALL_MASK      ((unsigned int)-1)
 
 #define SDHCI_ACMD12_ERR        0x3C
@@ -236,6 +236,10 @@ struct sdhci_host {
 #define SDHCI_QUIRK_DELAY_AFTER_POWER                   (1<<23)
 /* Controller uses SDCLK instead of TMCLK for data timeouts */
 #define SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK             (1<<24)
+/* Controller reports wrong base clock capability */
+#define SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN               (1<<25)
+/* Controller cannot support End Attribute in NOP ADMA descriptor */
+#define SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC               (1<<26)
 
         int                     irq;            /* Device IRQ */
         void __iomem *          ioaddr;         /* Mapped address */
@@ -294,12 +298,12 @@ struct sdhci_host {
 
 struct sdhci_ops {
 #ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS
-        u32             (*readl)(struct sdhci_host *host, int reg);
-        u16             (*readw)(struct sdhci_host *host, int reg);
-        u8              (*readb)(struct sdhci_host *host, int reg);
-        void            (*writel)(struct sdhci_host *host, u32 val, int reg);
-        void            (*writew)(struct sdhci_host *host, u16 val, int reg);
-        void            (*writeb)(struct sdhci_host *host, u8 val, int reg);
+        u32             (*read_l)(struct sdhci_host *host, int reg);
+        u16             (*read_w)(struct sdhci_host *host, int reg);
+        u8              (*read_b)(struct sdhci_host *host, int reg);
+        void            (*write_l)(struct sdhci_host *host, u32 val, int reg);
+        void            (*write_w)(struct sdhci_host *host, u16 val, int reg);
+        void            (*write_b)(struct sdhci_host *host, u8 val, int reg);
 #endif
 
         void    (*set_clock)(struct sdhci_host *host, unsigned int clock);
@@ -314,48 +318,48 @@ struct sdhci_ops {
 
 static inline void sdhci_writel(struct sdhci_host *host, u32 val, int reg)
 {
-        if (unlikely(host->ops->writel))
-                host->ops->writel(host, val, reg);
+        if (unlikely(host->ops->write_l))
+                host->ops->write_l(host, val, reg);
         else
                 writel(val, host->ioaddr + reg);
 }
 
 static inline void sdhci_writew(struct sdhci_host *host, u16 val, int reg)
 {
-        if (unlikely(host->ops->writew))
-                host->ops->writew(host, val, reg);
+        if (unlikely(host->ops->write_w))
+                host->ops->write_w(host, val, reg);
         else
                 writew(val, host->ioaddr + reg);
 }
 
 static inline void sdhci_writeb(struct sdhci_host *host, u8 val, int reg)
 {
-        if (unlikely(host->ops->writeb))
-                host->ops->writeb(host, val, reg);
+        if (unlikely(host->ops->write_b))
+                host->ops->write_b(host, val, reg);
         else
                 writeb(val, host->ioaddr + reg);
 }
 
 static inline u32 sdhci_readl(struct sdhci_host *host, int reg)
 {
-        if (unlikely(host->ops->readl))
-                return host->ops->readl(host, reg);
+        if (unlikely(host->ops->read_l))
+                return host->ops->read_l(host, reg);
         else
                 return readl(host->ioaddr + reg);
 }
 
 static inline u16 sdhci_readw(struct sdhci_host *host, int reg)
 {
-        if (unlikely(host->ops->readw))
-                return host->ops->readw(host, reg);
+        if (unlikely(host->ops->read_w))
+                return host->ops->read_w(host, reg);
         else
                 return readw(host->ioaddr + reg);
 }
 
 static inline u8 sdhci_readb(struct sdhci_host *host, int reg)
 {
-        if (unlikely(host->ops->readb))
-                return host->ops->readb(host, reg);
+        if (unlikely(host->ops->read_b))
+                return host->ops->read_b(host, reg);
         else
                 return readb(host->ioaddr + reg);
 }
diff --git a/drivers/mmc/host/sdricoh_cs.c b/drivers/mmc/host/sdricoh_cs.c
index cb41e9c3ac07..e7507af3856e 100644
--- a/drivers/mmc/host/sdricoh_cs.c
+++ b/drivers/mmc/host/sdricoh_cs.c
@@ -519,7 +519,7 @@ static int sdricoh_pcmcia_suspend(struct pcmcia_device *link)
 {
         struct mmc_host *mmc = link->priv;
         dev_dbg(&link->dev, "suspend\n");
-        mmc_suspend_host(mmc, PMSG_SUSPEND);
+        mmc_suspend_host(mmc);
         return 0;
 }
 
diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c
new file mode 100644
index 000000000000..eb97830c0344
--- /dev/null
+++ b/drivers/mmc/host/sh_mmcif.c
@@ -0,0 +1,965 @@
+/*
+ * MMCIF eMMC driver.
+ *
+ * Copyright (C) 2010 Renesas Solutions Corp.
+ * Yusuke Goda <yusuke.goda.sx@renesas.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License.
+ *
+ *
+ * TODO
+ *  1. DMA
+ *  2. Power management
+ *  3. Handle MMC errors better
+ *
+ */
+
+#include <linux/dma-mapping.h>
+#include <linux/mmc/host.h>
+#include <linux/mmc/card.h>
+#include <linux/mmc/core.h>
+#include <linux/mmc/mmc.h>
+#include <linux/mmc/sdio.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/mmc/sh_mmcif.h>
+
+#define DRIVER_NAME     "sh_mmcif"
+#define DRIVER_VERSION  "2010-04-28"
+
+#define MMCIF_CE_CMD_SET        0x00000000
+#define MMCIF_CE_ARG            0x00000008
+#define MMCIF_CE_ARG_CMD12      0x0000000C
+#define MMCIF_CE_CMD_CTRL       0x00000010
+#define MMCIF_CE_BLOCK_SET      0x00000014
+#define MMCIF_CE_CLK_CTRL       0x00000018
+#define MMCIF_CE_BUF_ACC        0x0000001C
+#define MMCIF_CE_RESP3          0x00000020
+#define MMCIF_CE_RESP2          0x00000024
+#define MMCIF_CE_RESP1          0x00000028
+#define MMCIF_CE_RESP0          0x0000002C
+#define MMCIF_CE_RESP_CMD12     0x00000030
+#define MMCIF_CE_DATA           0x00000034
+#define MMCIF_CE_INT            0x00000040
+#define MMCIF_CE_INT_MASK       0x00000044
+#define MMCIF_CE_HOST_STS1      0x00000048
+#define MMCIF_CE_HOST_STS2      0x0000004C
+#define MMCIF_CE_VERSION        0x0000007C
+
+/* CE_CMD_SET */
+#define CMD_MASK                0x3f000000
+#define CMD_SET_RTYP_NO         ((0 << 23) | (0 << 22))
+#define CMD_SET_RTYP_6B         ((0 << 23) | (1 << 22)) /* R1/R1b/R3/R4/R5 */
+#define CMD_SET_RTYP_17B        ((1 << 23) | (0 << 22)) /* R2 */
+#define CMD_SET_RBSY            (1 << 21) /* R1b */
+#define CMD_SET_CCSEN           (1 << 20)
+#define CMD_SET_WDAT            (1 << 19) /* 1: on data, 0: no data */
+#define CMD_SET_DWEN            (1 << 18) /* 1: write, 0: read */
+#define CMD_SET_CMLTE           (1 << 17) /* 1: multi block trans, 0: single */
+#define CMD_SET_CMD12EN         (1 << 16) /* 1: CMD12 auto issue */
+#define CMD_SET_RIDXC_INDEX     ((0 << 15) | (0 << 14)) /* index check */
+#define CMD_SET_RIDXC_BITS      ((0 << 15) | (1 << 14)) /* check bits check */
+#define CMD_SET_RIDXC_NO        ((1 << 15) | (0 << 14)) /* no check */
+#define CMD_SET_CRC7C           ((0 << 13) | (0 << 12)) /* CRC7 check*/
+#define CMD_SET_CRC7C_BITS      ((0 << 13) | (1 << 12)) /* check bits check*/
+#define CMD_SET_CRC7C_INTERNAL  ((1 << 13) | (0 << 12)) /* internal CRC7 check*/
+#define CMD_SET_CRC16C          (1 << 10) /* 0: CRC16 check*/
+#define CMD_SET_CRCSTE          (1 << 8) /* 1: not receive CRC status */
+#define CMD_SET_TBIT            (1 << 7) /* 1: tran mission bit "Low" */
+#define CMD_SET_OPDM            (1 << 6) /* 1: open/drain */
+#define CMD_SET_CCSH            (1 << 5)
+#define CMD_SET_DATW_1          ((0 << 1) | (0 << 0)) /* 1bit */
+#define CMD_SET_DATW_4          ((0 << 1) | (1 << 0)) /* 4bit */
+#define CMD_SET_DATW_8          ((1 << 1) | (0 << 0)) /* 8bit */
+
+/* CE_CMD_CTRL */
+#define CMD_CTRL_BREAK          (1 << 0)
+
+/* CE_BLOCK_SET */
+#define BLOCK_SIZE_MASK         0x0000ffff
+
+/* CE_CLK_CTRL */
+#define CLK_ENABLE              (1 << 24) /* 1: output mmc clock */
+#define CLK_CLEAR               ((1 << 19) | (1 << 18) | (1 << 17) | (1 << 16))
+#define CLK_SUP_PCLK            ((1 << 19) | (1 << 18) | (1 << 17) | (1 << 16))
+#define SRSPTO_256              ((1 << 13) | (0 << 12)) /* resp timeout */
+#define SRBSYTO_29              ((1 << 11) | (1 << 10) |        \
+                                 (1 << 9) | (1 << 8)) /* resp busy timeout */
+#define SRWDTO_29               ((1 << 7) | (1 << 6) |          \
+                                 (1 << 5) | (1 << 4)) /* read/write timeout */
+#define SCCSTO_29               ((1 << 3) | (1 << 2) |          \
+                                 (1 << 1) | (1 << 0)) /* ccs timeout */
+
+/* CE_BUF_ACC */
+#define BUF_ACC_DMAWEN          (1 << 25)
+#define BUF_ACC_DMAREN          (1 << 24)
+#define BUF_ACC_BUSW_32         (0 << 17)
+#define BUF_ACC_BUSW_16         (1 << 17)
+#define BUF_ACC_ATYP            (1 << 16)
+
+/* CE_INT */
+#define INT_CCSDE               (1 << 29)
+#define INT_CMD12DRE            (1 << 26)
+#define INT_CMD12RBE            (1 << 25)
+#define INT_CMD12CRE            (1 << 24)
+#define INT_DTRANE              (1 << 23)
+#define INT_BUFRE               (1 << 22)
+#define INT_BUFWEN              (1 << 21)
+#define INT_BUFREN              (1 << 20)
+#define INT_CCSRCV              (1 << 19)
+#define INT_RBSYE               (1 << 17)
+#define INT_CRSPE               (1 << 16)
+#define INT_CMDVIO              (1 << 15)
+#define INT_BUFVIO              (1 << 14)
+#define INT_WDATERR             (1 << 11)
+#define INT_RDATERR             (1 << 10)
+#define INT_RIDXERR             (1 << 9)
+#define INT_RSPERR              (1 << 8)
+#define INT_CCSTO               (1 << 5)
+#define INT_CRCSTO              (1 << 4)
+#define INT_WDATTO              (1 << 3)
+#define INT_RDATTO              (1 << 2)
+#define INT_RBSYTO              (1 << 1)
+#define INT_RSPTO               (1 << 0)
+#define INT_ERR_STS             (INT_CMDVIO | INT_BUFVIO | INT_WDATERR |  \
+                                 INT_RDATERR | INT_RIDXERR | INT_RSPERR | \
+                                 INT_CCSTO | INT_CRCSTO | INT_WDATTO |    \
+                                 INT_RDATTO | INT_RBSYTO | INT_RSPTO)
+
+/* CE_INT_MASK */
+#define MASK_ALL                0x00000000
+#define MASK_MCCSDE             (1 << 29)
+#define MASK_MCMD12DRE          (1 << 26)
+#define MASK_MCMD12RBE          (1 << 25)
+#define MASK_MCMD12CRE          (1 << 24)
+#define MASK_MDTRANE            (1 << 23)
+#define MASK_MBUFRE             (1 << 22)
+#define MASK_MBUFWEN            (1 << 21)
+#define MASK_MBUFREN            (1 << 20)
+#define MASK_MCCSRCV            (1 << 19)
+#define MASK_MRBSYE             (1 << 17)
+#define MASK_MCRSPE             (1 << 16)
+#define MASK_MCMDVIO            (1 << 15)
+#define MASK_MBUFVIO            (1 << 14)
+#define MASK_MWDATERR           (1 << 11)
+#define MASK_MRDATERR           (1 << 10)
+#define MASK_MRIDXERR           (1 << 9)
+#define MASK_MRSPERR            (1 << 8)
+#define MASK_MCCSTO             (1 << 5)
+#define MASK_MCRCSTO            (1 << 4)
+#define MASK_MWDATTO            (1 << 3)
+#define MASK_MRDATTO            (1 << 2)
+#define MASK_MRBSYTO            (1 << 1)
+#define MASK_MRSPTO             (1 << 0)
+
+/* CE_HOST_STS1 */
+#define STS1_CMDSEQ             (1 << 31)
+
+/* CE_HOST_STS2 */
+#define STS2_CRCSTE             (1 << 31)
+#define STS2_CRC16E             (1 << 30)
+#define STS2_AC12CRCE           (1 << 29)
+#define STS2_RSPCRC7E           (1 << 28)
+#define STS2_CRCSTEBE           (1 << 27)
+#define STS2_RDATEBE            (1 << 26)
+#define STS2_AC12REBE           (1 << 25)
+#define STS2_RSPEBE             (1 << 24)
+#define STS2_AC12IDXE           (1 << 23)
+#define STS2_RSPIDXE            (1 << 22)
+#define STS2_CCSTO              (1 << 15)
+#define STS2_RDATTO             (1 << 14)
+#define STS2_DATBSYTO           (1 << 13)
+#define STS2_CRCSTTO            (1 << 12)
+#define STS2_AC12BSYTO          (1 << 11)
+#define STS2_RSPBSYTO           (1 << 10)
+#define STS2_AC12RSPTO          (1 << 9)
+#define STS2_RSPTO              (1 << 8)
+#define STS2_CRC_ERR            (STS2_CRCSTE | STS2_CRC16E |            \
+                                 STS2_AC12CRCE | STS2_RSPCRC7E | STS2_CRCSTEBE)
+#define STS2_TIMEOUT_ERR        (STS2_CCSTO | STS2_RDATTO |             \
+                                 STS2_DATBSYTO | STS2_CRCSTTO |         \
+                                 STS2_AC12BSYTO | STS2_RSPBSYTO |       \
+                                 STS2_AC12RSPTO | STS2_RSPTO)
+
+/* CE_VERSION */
+#define SOFT_RST_ON             (1 << 31)
+#define SOFT_RST_OFF            (0 << 31)
+
+#define CLKDEV_EMMC_DATA        52000000 /* 52MHz */
+#define CLKDEV_MMC_DATA         20000000 /* 20MHz */
+#define CLKDEV_INIT             400000   /* 400 KHz */
+
+struct sh_mmcif_host {
+        struct mmc_host *mmc;
+        struct mmc_data *data;
+        struct mmc_command *cmd;
+        struct platform_device *pd;
+        struct clk *hclk;
+        unsigned int clk;
+        int bus_width;
+        u16 wait_int;
+        u16 sd_error;
+        long timeout;
+        void __iomem *addr;
+        wait_queue_head_t intr_wait;
+};
+
+static inline u32 sh_mmcif_readl(struct sh_mmcif_host *host, unsigned int reg)
+{
+        return readl(host->addr + reg);
+}
+
+static inline void sh_mmcif_writel(struct sh_mmcif_host *host,
+                                        unsigned int reg, u32 val)
+{
+        writel(val, host->addr + reg);
+}
+
+static inline void sh_mmcif_bitset(struct sh_mmcif_host *host,
+                                        unsigned int reg, u32 val)
+{
+        writel(val | sh_mmcif_readl(host, reg), host->addr + reg);
+}
+
+static inline void sh_mmcif_bitclr(struct sh_mmcif_host *host,
+                                        unsigned int reg, u32 val)
+{
+        writel(~val & sh_mmcif_readl(host, reg), host->addr + reg);
+}
+
+
+static void sh_mmcif_clock_control(struct sh_mmcif_host *host, unsigned int clk)
+{
+        struct sh_mmcif_plat_data *p = host->pd->dev.platform_data;
+
+        sh_mmcif_bitclr(host, MMCIF_CE_CLK_CTRL, CLK_ENABLE);
+        sh_mmcif_bitclr(host, MMCIF_CE_CLK_CTRL, CLK_CLEAR);
+
+        if (!clk)
+                return;
+        if (p->sup_pclk && clk == host->clk)
+                sh_mmcif_bitset(host, MMCIF_CE_CLK_CTRL, CLK_SUP_PCLK);
+        else
+                sh_mmcif_bitset(host, MMCIF_CE_CLK_CTRL, CLK_CLEAR &
+                        (ilog2(__rounddown_pow_of_two(host->clk / clk)) << 16));
+
+        sh_mmcif_bitset(host, MMCIF_CE_CLK_CTRL, CLK_ENABLE);
+}
+
+static void sh_mmcif_sync_reset(struct sh_mmcif_host *host)
+{
+        u32 tmp;
+
+        tmp = 0x010f0000 & sh_mmcif_readl(host, MMCIF_CE_CLK_CTRL);
+
+        sh_mmcif_writel(host, MMCIF_CE_VERSION, SOFT_RST_ON);
+        sh_mmcif_writel(host, MMCIF_CE_VERSION, SOFT_RST_OFF);
+        sh_mmcif_bitset(host, MMCIF_CE_CLK_CTRL, tmp |
+                SRSPTO_256 | SRBSYTO_29 | SRWDTO_29 | SCCSTO_29);
+        /* byte swap on */
+        sh_mmcif_bitset(host, MMCIF_CE_BUF_ACC, BUF_ACC_ATYP);
+}
+
+static int sh_mmcif_error_manage(struct sh_mmcif_host *host)
+{
+        u32 state1, state2;
+        int ret, timeout = 10000000;
+
+        host->sd_error = 0;
+        host->wait_int = 0;
+
+        state1 = sh_mmcif_readl(host, MMCIF_CE_HOST_STS1);
+        state2 = sh_mmcif_readl(host, MMCIF_CE_HOST_STS2);
+        pr_debug("%s: ERR HOST_STS1 = %08x\n", \
+                        DRIVER_NAME, sh_mmcif_readl(host, MMCIF_CE_HOST_STS1));
+        pr_debug("%s: ERR HOST_STS2 = %08x\n", \
+                        DRIVER_NAME, sh_mmcif_readl(host, MMCIF_CE_HOST_STS2));
+
+        if (state1 & STS1_CMDSEQ) {
+                sh_mmcif_bitset(host, MMCIF_CE_CMD_CTRL, CMD_CTRL_BREAK);
+                sh_mmcif_bitset(host, MMCIF_CE_CMD_CTRL, ~CMD_CTRL_BREAK);
+                while (1) {
+                        timeout--;
+                        if (timeout < 0) {
+                                pr_err(DRIVER_NAME": Forceed end of " \
+                                        "command sequence timeout err\n");
+                                return -EIO;
+                        }
+                        if (!(sh_mmcif_readl(host, MMCIF_CE_HOST_STS1)
+                                                                & STS1_CMDSEQ))
+                                break;
+                        mdelay(1);
+                }
+                sh_mmcif_sync_reset(host);
+                pr_debug(DRIVER_NAME": Forced end of command sequence\n");
+                return -EIO;
+        }
+
+        if (state2 & STS2_CRC_ERR) {
+                pr_debug(DRIVER_NAME": Happened CRC error\n");
+                ret = -EIO;
+        } else if (state2 & STS2_TIMEOUT_ERR) {
+                pr_debug(DRIVER_NAME": Happened Timeout error\n");
+                ret = -ETIMEDOUT;
+        } else {
+                pr_debug(DRIVER_NAME": Happened End/Index error\n");
+                ret = -EIO;
+        }
+        return ret;
+}
+
+static int sh_mmcif_single_read(struct sh_mmcif_host *host,
+                                        struct mmc_request *mrq)
+{
+        struct mmc_data *data = mrq->data;
+        long time;
+        u32 blocksize, i, *p = sg_virt(data->sg);
+
+        host->wait_int = 0;
+
+        /* buf read enable */
+        sh_mmcif_bitset(host, MMCIF_CE_INT_MASK, MASK_MBUFREN);
+        time = wait_event_interruptible_timeout(host->intr_wait,
+                        host->wait_int == 1 ||
+                        host->sd_error == 1, host->timeout);
+        if (host->wait_int != 1 && (time == 0 || host->sd_error != 0))
+                return sh_mmcif_error_manage(host);
+
+        host->wait_int = 0;
+        blocksize = (BLOCK_SIZE_MASK &
+                        sh_mmcif_readl(host, MMCIF_CE_BLOCK_SET)) + 3;
+        for (i = 0; i < blocksize / 4; i++)
+                *p++ = sh_mmcif_readl(host, MMCIF_CE_DATA);
+
+        /* buffer read end */
+        sh_mmcif_bitset(host, MMCIF_CE_INT_MASK, MASK_MBUFRE);
+        time = wait_event_interruptible_timeout(host->intr_wait,
+                        host->wait_int == 1 ||
+                        host->sd_error == 1, host->timeout);
+        if (host->wait_int != 1 && (time == 0 || host->sd_error != 0))
+                return sh_mmcif_error_manage(host);
+
+        host->wait_int = 0;
+        return 0;
+}
+
+static int sh_mmcif_multi_read(struct sh_mmcif_host *host,
+                                        struct mmc_request *mrq)
+{
+        struct mmc_data *data = mrq->data;
+        long time;
+        u32 blocksize, i, j, sec, *p;
+
+        blocksize = BLOCK_SIZE_MASK & sh_mmcif_readl(host, MMCIF_CE_BLOCK_SET);
+        for (j = 0; j < data->sg_len; j++) {
+                p = sg_virt(data->sg);
+                host->wait_int = 0;
+                for (sec = 0; sec < data->sg->length / blocksize; sec++) {
+                        sh_mmcif_bitset(host, MMCIF_CE_INT_MASK, MASK_MBUFREN);
+                        /* buf read enable */
+                        time = wait_event_interruptible_timeout(host->intr_wait,
+                                host->wait_int == 1 ||
+                                host->sd_error == 1, host->timeout);
+
+                        if (host->wait_int != 1 &&
+                            (time == 0 || host->sd_error != 0))
+                                return sh_mmcif_error_manage(host);
+
+                        host->wait_int = 0;
+                        for (i = 0; i < blocksize / 4; i++)
+                                *p++ = sh_mmcif_readl(host, MMCIF_CE_DATA);
+                }
+                if (j < data->sg_len - 1)
+                        data->sg++;
+        }
+        return 0;
+}
+
+static int sh_mmcif_single_write(struct sh_mmcif_host *host,
+                                        struct mmc_request *mrq)
+{
+        struct mmc_data *data = mrq->data;
+        long time;
+        u32 blocksize, i, *p = sg_virt(data->sg);
+
+        host->wait_int = 0;
+        sh_mmcif_bitset(host, MMCIF_CE_INT_MASK, MASK_MBUFWEN);
+
+        /* buf write enable */
+        time = wait_event_interruptible_timeout(host->intr_wait,
+                        host->wait_int == 1 ||
+                        host->sd_error == 1, host->timeout);
+        if (host->wait_int != 1 && (time == 0 || host->sd_error != 0))
+                return sh_mmcif_error_manage(host);
+
+        host->wait_int = 0;
+        blocksize = (BLOCK_SIZE_MASK &
+                        sh_mmcif_readl(host, MMCIF_CE_BLOCK_SET)) + 3;
+        for (i = 0; i < blocksize / 4; i++)
+                sh_mmcif_writel(host, MMCIF_CE_DATA, *p++);
+
+        /* buffer write end */
+        sh_mmcif_bitset(host, MMCIF_CE_INT_MASK, MASK_MDTRANE);
+
+        time = wait_event_interruptible_timeout(host->intr_wait,
+                        host->wait_int == 1 ||
+                        host->sd_error == 1, host->timeout);
+        if (host->wait_int != 1 && (time == 0 || host->sd_error != 0))
+                return sh_mmcif_error_manage(host);
+
+        host->wait_int = 0;
+        return 0;
+}
+
+static int sh_mmcif_multi_write(struct sh_mmcif_host *host,
+                                                struct mmc_request *mrq)
+{
+        struct mmc_data *data = mrq->data;
+        long time;
+        u32 i, sec, j, blocksize, *p;
+
+        blocksize = BLOCK_SIZE_MASK & sh_mmcif_readl(host, MMCIF_CE_BLOCK_SET);
+
+        for (j = 0; j < data->sg_len; j++) {
+                p = sg_virt(data->sg);
+                host->wait_int = 0;
+                for (sec = 0; sec < data->sg->length / blocksize; sec++) {
+                        sh_mmcif_bitset(host, MMCIF_CE_INT_MASK, MASK_MBUFWEN);
+                        /* buf write enable*/
+                        time = wait_event_interruptible_timeout(host->intr_wait,
+                                host->wait_int == 1 ||
+                                host->sd_error == 1, host->timeout);
+
+                        if (host->wait_int != 1 &&
+                            (time == 0 || host->sd_error != 0))
+                                return sh_mmcif_error_manage(host);
+
+                        host->wait_int = 0;
+                        for (i = 0; i < blocksize / 4; i++)
+                                sh_mmcif_writel(host, MMCIF_CE_DATA, *p++);
+                }
+                if (j < data->sg_len - 1)
+                        data->sg++;
+        }
+        return 0;
+}
+
+static void sh_mmcif_get_response(struct sh_mmcif_host *host,
+                                                struct mmc_command *cmd)
+{
+        if (cmd->flags & MMC_RSP_136) {
+                cmd->resp[0] = sh_mmcif_readl(host, MMCIF_CE_RESP3);
+                cmd->resp[1] = sh_mmcif_readl(host, MMCIF_CE_RESP2);
+                cmd->resp[2] = sh_mmcif_readl(host, MMCIF_CE_RESP1);
+                cmd->resp[3] = sh_mmcif_readl(host, MMCIF_CE_RESP0);
+        } else
+                cmd->resp[0] = sh_mmcif_readl(host, MMCIF_CE_RESP0);
+}
+
+static void sh_mmcif_get_cmd12response(struct sh_mmcif_host *host,
+                                                struct mmc_command *cmd)
+{
+        cmd->resp[0] = sh_mmcif_readl(host, MMCIF_CE_RESP_CMD12);
+}
+
+static u32 sh_mmcif_set_cmd(struct sh_mmcif_host *host,
+                struct mmc_request *mrq, struct mmc_command *cmd, u32 opc)
+{
+        u32 tmp = 0;
+
+        /* Response Type check */
+        switch (mmc_resp_type(cmd)) {
+        case MMC_RSP_NONE:
+                tmp |= CMD_SET_RTYP_NO;
+                break;
+        case MMC_RSP_R1:
+        case MMC_RSP_R1B:
+        case MMC_RSP_R3:
+                tmp |= CMD_SET_RTYP_6B;
+                break;
+        case MMC_RSP_R2:
+                tmp |= CMD_SET_RTYP_17B;
+                break;
+        default:
+                pr_err(DRIVER_NAME": Not support type response.\n");
+                break;
+        }
+        switch (opc) {
+        /* RBSY */
+        case MMC_SWITCH:
+        case MMC_STOP_TRANSMISSION:
+        case MMC_SET_WRITE_PROT:
+        case MMC_CLR_WRITE_PROT:
+        case MMC_ERASE:
+        case MMC_GEN_CMD:
+                tmp |= CMD_SET_RBSY;
+                break;
+        }
+        /* WDAT / DATW */
+        if (host->data) {
+                tmp |= CMD_SET_WDAT;
+                switch (host->bus_width) {
+                case MMC_BUS_WIDTH_1:
+                        tmp |= CMD_SET_DATW_1;
+                        break;
+                case MMC_BUS_WIDTH_4:
+                        tmp |= CMD_SET_DATW_4;
+                        break;
+                case MMC_BUS_WIDTH_8:
+                        tmp |= CMD_SET_DATW_8;
+                        break;
+                default:
+                        pr_err(DRIVER_NAME": Not support bus width.\n");
+                        break;
+                }
+        }
+        /* DWEN */
+        if (opc == MMC_WRITE_BLOCK || opc == MMC_WRITE_MULTIPLE_BLOCK)
+                tmp |= CMD_SET_DWEN;
+        /* CMLTE/CMD12EN */
+        if (opc == MMC_READ_MULTIPLE_BLOCK || opc == MMC_WRITE_MULTIPLE_BLOCK) {
+                tmp |= CMD_SET_CMLTE | CMD_SET_CMD12EN;
+                sh_mmcif_bitset(host, MMCIF_CE_BLOCK_SET,
+                                        mrq->data->blocks << 16);
+        }
+        /* RIDXC[1:0] check bits */
+        if (opc == MMC_SEND_OP_COND || opc == MMC_ALL_SEND_CID ||
+            opc == MMC_SEND_CSD || opc == MMC_SEND_CID)
+                tmp |= CMD_SET_RIDXC_BITS;
+        /* RCRC7C[1:0] check bits */
+        if (opc == MMC_SEND_OP_COND)
+                tmp |= CMD_SET_CRC7C_BITS;
+        /* RCRC7C[1:0] internal CRC7 */
+        if (opc == MMC_ALL_SEND_CID ||
+                opc == MMC_SEND_CSD || opc == MMC_SEND_CID)
+                tmp |= CMD_SET_CRC7C_INTERNAL;
+
+        return opc = ((opc << 24) | tmp);
+}
+
+static u32 sh_mmcif_data_trans(struct sh_mmcif_host *host,
+                                struct mmc_request *mrq, u32 opc)
+{
+        u32 ret;
+
+        switch (opc) {
+        case MMC_READ_MULTIPLE_BLOCK:
+                ret = sh_mmcif_multi_read(host, mrq);
+                break;
+        case MMC_WRITE_MULTIPLE_BLOCK:
+                ret = sh_mmcif_multi_write(host, mrq);
+                break;
+        case MMC_WRITE_BLOCK:
+                ret = sh_mmcif_single_write(host, mrq);
+                break;
+        case MMC_READ_SINGLE_BLOCK:
+        case MMC_SEND_EXT_CSD:
+                ret = sh_mmcif_single_read(host, mrq);
+                break;
+        default:
+                pr_err(DRIVER_NAME": NOT SUPPORT CMD = d'%08d\n", opc);
+                ret = -EINVAL;
+                break;
+        }
+        return ret;
+}
+
+static void sh_mmcif_start_cmd(struct sh_mmcif_host *host,
+                        struct mmc_request *mrq, struct mmc_command *cmd)
+{
+        long time;
+        int ret = 0, mask = 0;
+        u32 opc = cmd->opcode;
+
+        host->cmd = cmd;
+
+        switch (opc) {
+        /* respons busy check */
+        case MMC_SWITCH:
+        case MMC_STOP_TRANSMISSION:
+        case MMC_SET_WRITE_PROT:
+        case MMC_CLR_WRITE_PROT:
+        case MMC_ERASE:
+        case MMC_GEN_CMD:
+                mask = MASK_MRBSYE;
+                break;
+        default:
+                mask = MASK_MCRSPE;
+                break;
+        }
+        mask |= MASK_MCMDVIO | MASK_MBUFVIO | MASK_MWDATERR |
+                MASK_MRDATERR | MASK_MRIDXERR | MASK_MRSPERR |
+                MASK_MCCSTO | MASK_MCRCSTO | MASK_MWDATTO |
+                MASK_MRDATTO | MASK_MRBSYTO | MASK_MRSPTO;
+
+        if (host->data) {
+                sh_mmcif_writel(host, MMCIF_CE_BLOCK_SET, 0);
+                sh_mmcif_writel(host, MMCIF_CE_BLOCK_SET, mrq->data->blksz);
+        }
+        opc = sh_mmcif_set_cmd(host, mrq, cmd, opc);
+
+        sh_mmcif_writel(host, MMCIF_CE_INT, 0xD80430C0);
+        sh_mmcif_writel(host, MMCIF_CE_INT_MASK, mask);
+        /* set arg */
+        sh_mmcif_writel(host, MMCIF_CE_ARG, cmd->arg);
+        host->wait_int = 0;
+        /* set cmd */
+        sh_mmcif_writel(host, MMCIF_CE_CMD_SET, opc);
+
+        time = wait_event_interruptible_timeout(host->intr_wait,
+                host->wait_int == 1 || host->sd_error == 1, host->timeout);
+        if (host->wait_int != 1 && time == 0) {
+                cmd->error = sh_mmcif_error_manage(host);
+                return;
+        }
+        if (host->sd_error) {
+                switch (cmd->opcode) {
+                case MMC_ALL_SEND_CID:
+                case MMC_SELECT_CARD:
+                case MMC_APP_CMD:
+                        cmd->error = -ETIMEDOUT;
+                        break;
+                default:
+                        pr_debug("%s: Cmd(d'%d) err\n",
+                                        DRIVER_NAME, cmd->opcode);
+                        cmd->error = sh_mmcif_error_manage(host);
+                        break;
+                }
+                host->sd_error = 0;
+                host->wait_int = 0;
+                return;
+        }
+        if (!(cmd->flags & MMC_RSP_PRESENT)) {
+                cmd->error = ret;
+                host->wait_int = 0;
+                return;
+        }
+        if (host->wait_int == 1) {
+                sh_mmcif_get_response(host, cmd);
+                host->wait_int = 0;
+        }
+        if (host->data) {
+                ret = sh_mmcif_data_trans(host, mrq, cmd->opcode);
+                if (ret < 0)
+                        mrq->data->bytes_xfered = 0;
+                else
+                        mrq->data->bytes_xfered =
+                                mrq->data->blocks * mrq->data->blksz;
+        }
+        cmd->error = ret;
+}
+
+static void sh_mmcif_stop_cmd(struct sh_mmcif_host *host,
+                struct mmc_request *mrq, struct mmc_command *cmd)
+{
+        long time;
+
+        if (mrq->cmd->opcode == MMC_READ_MULTIPLE_BLOCK)
+                sh_mmcif_bitset(host, MMCIF_CE_INT_MASK, MASK_MCMD12DRE);
+        else if (mrq->cmd->opcode == MMC_WRITE_MULTIPLE_BLOCK)
+                sh_mmcif_bitset(host, MMCIF_CE_INT_MASK, MASK_MCMD12RBE);
+        else {
+                pr_err(DRIVER_NAME": not support stop cmd\n");
+                cmd->error = sh_mmcif_error_manage(host);
+                return;
+        }
+
+        time = wait_event_interruptible_timeout(host->intr_wait,
+                        host->wait_int == 1 ||
+                        host->sd_error == 1, host->timeout);
+        if (host->wait_int != 1 && (time == 0 || host->sd_error != 0)) {
+                cmd->error = sh_mmcif_error_manage(host);
+                return;
+        }
+        sh_mmcif_get_cmd12response(host, cmd);
+        host->wait_int = 0;
+        cmd->error = 0;
+}
+
+static void sh_mmcif_request(struct mmc_host *mmc, struct mmc_request *mrq)
+{
+        struct sh_mmcif_host *host = mmc_priv(mmc);
+
+        switch (mrq->cmd->opcode) {
+        /* MMCIF does not support SD/SDIO command */
+        case SD_IO_SEND_OP_COND:
+        case MMC_APP_CMD:
+                mrq->cmd->error = -ETIMEDOUT;
+                mmc_request_done(mmc, mrq);
+                return;
+        case MMC_SEND_EXT_CSD: /* = SD_SEND_IF_COND (8) */
+                if (!mrq->data) {
+                        /* send_if_cond cmd (not support) */
+                        mrq->cmd->error = -ETIMEDOUT;
+                        mmc_request_done(mmc, mrq);
+                        return;
+                }
+                break;
+        default:
+                break;
+        }
+        host->data = mrq->data;
+        sh_mmcif_start_cmd(host, mrq, mrq->cmd);
+        host->data = NULL;
+
+        if (mrq->cmd->error != 0) {
+                mmc_request_done(mmc, mrq);
+                return;
+        }
+        if (mrq->stop)
+                sh_mmcif_stop_cmd(host, mrq, mrq->stop);
+        mmc_request_done(mmc, mrq);
+}
+
+static void sh_mmcif_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
+{
+        struct sh_mmcif_host *host = mmc_priv(mmc);
+        struct sh_mmcif_plat_data *p = host->pd->dev.platform_data;
+
+        if (ios->power_mode == MMC_POWER_OFF) {
+                /* clock stop */
+                sh_mmcif_clock_control(host, 0);
+                if (p->down_pwr)
+                        p->down_pwr(host->pd);
+                return;
+        } else if (ios->power_mode == MMC_POWER_UP) {
+                if (p->set_pwr)
+                        p->set_pwr(host->pd, ios->power_mode);
+        }
+
+        if (ios->clock)
+                sh_mmcif_clock_control(host, ios->clock);
+
+        host->bus_width = ios->bus_width;
+}
+
+static struct mmc_host_ops sh_mmcif_ops = {
+        .request        = sh_mmcif_request,
+        .set_ios        = sh_mmcif_set_ios,
+};
+
+static void sh_mmcif_detect(struct mmc_host *mmc)
+{
+        mmc_detect_change(mmc, 0);
+}
+
+static irqreturn_t sh_mmcif_intr(int irq, void *dev_id)
+{
+        struct sh_mmcif_host *host = dev_id;
+        u32 state = 0;
+        int err = 0;
+
+        state = sh_mmcif_readl(host, MMCIF_CE_INT);
+
+        if (state & INT_RBSYE) {
+                sh_mmcif_writel(host, MMCIF_CE_INT, ~(INT_RBSYE | INT_CRSPE));
+                sh_mmcif_bitclr(host, MMCIF_CE_INT_MASK, MASK_MRBSYE);
+        } else if (state & INT_CRSPE) {
+                sh_mmcif_writel(host, MMCIF_CE_INT, ~INT_CRSPE);
+                sh_mmcif_bitclr(host, MMCIF_CE_INT_MASK, MASK_MCRSPE);
+        } else if (state & INT_BUFREN) {
+                sh_mmcif_writel(host, MMCIF_CE_INT, ~INT_BUFREN);
+                sh_mmcif_bitclr(host, MMCIF_CE_INT_MASK, MASK_MBUFREN);
+        } else if (state & INT_BUFWEN) {
+                sh_mmcif_writel(host, MMCIF_CE_INT, ~INT_BUFWEN);
+                sh_mmcif_bitclr(host, MMCIF_CE_INT_MASK, MASK_MBUFWEN);
+        } else if (state & INT_CMD12DRE) {
+                sh_mmcif_writel(host, MMCIF_CE_INT,
+                        ~(INT_CMD12DRE | INT_CMD12RBE |
+                          INT_CMD12CRE | INT_BUFRE));
+                sh_mmcif_bitclr(host, MMCIF_CE_INT_MASK, MASK_MCMD12DRE);
+        } else if (state & INT_BUFRE) {
+                sh_mmcif_writel(host, MMCIF_CE_INT, ~INT_BUFRE);
+                sh_mmcif_bitclr(host, MMCIF_CE_INT_MASK, MASK_MBUFRE);
+        } else if (state & INT_DTRANE) {
+                sh_mmcif_writel(host, MMCIF_CE_INT, ~INT_DTRANE);
+                sh_mmcif_bitclr(host, MMCIF_CE_INT_MASK, MASK_MDTRANE);
+        } else if (state & INT_CMD12RBE) {
+                sh_mmcif_writel(host, MMCIF_CE_INT,
+                                ~(INT_CMD12RBE | INT_CMD12CRE));
+                sh_mmcif_bitclr(host, MMCIF_CE_INT_MASK, MASK_MCMD12RBE);
+        } else if (state & INT_ERR_STS) {
+                /* err interrupts */
+                sh_mmcif_writel(host, MMCIF_CE_INT, ~state);
+                sh_mmcif_bitclr(host, MMCIF_CE_INT_MASK, state);
+                err = 1;
+        } else {
+                pr_debug("%s: Not support int\n", DRIVER_NAME);
+                sh_mmcif_writel(host, MMCIF_CE_INT, ~state);
+                sh_mmcif_bitclr(host, MMCIF_CE_INT_MASK, state);
+                err = 1;
+        }
+        if (err) {
+                host->sd_error = 1;
+                pr_debug("%s: int err state = %08x\n", DRIVER_NAME, state);
+        }
+        host->wait_int = 1;
+        wake_up(&host->intr_wait);
+
+        return IRQ_HANDLED;
+}
+
+static int __devinit sh_mmcif_probe(struct platform_device *pdev)
+{
+        int ret = 0, irq[2];
+        struct mmc_host *mmc;
+        struct sh_mmcif_host *host = NULL;
+        struct sh_mmcif_plat_data *pd = NULL;
+        struct resource *res;
+        void __iomem *reg;
+        char clk_name[8];
+
+        irq[0] = platform_get_irq(pdev, 0);
+        irq[1] = platform_get_irq(pdev, 1);
+        if (irq[0] < 0 || irq[1] < 0) {
+                pr_err(DRIVER_NAME": Get irq error\n");
+                return -ENXIO;
+        }
+        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+        if (!res) {
+                dev_err(&pdev->dev, "platform_get_resource error.\n");
+                return -ENXIO;
+        }
+        reg = ioremap(res->start, resource_size(res));
+        if (!reg) {
+                dev_err(&pdev->dev, "ioremap error.\n");
+                return -ENOMEM;
+        }
+        pd = (struct sh_mmcif_plat_data *)(pdev->dev.platform_data);
+        if (!pd) {
+                dev_err(&pdev->dev, "sh_mmcif plat data error.\n");
+                ret = -ENXIO;
+                goto clean_up;
+        }
+        mmc = mmc_alloc_host(sizeof(struct sh_mmcif_host), &pdev->dev);
+        if (!mmc) {
+                ret = -ENOMEM;
+                goto clean_up;
+        }
+        host            = mmc_priv(mmc);
+        host->mmc       = mmc;
+        host->addr      = reg;
+        host->timeout   = 1000;
+
+        snprintf(clk_name, sizeof(clk_name), "mmc%d", pdev->id);
+        host->hclk = clk_get(&pdev->dev, clk_name);
+        if (IS_ERR(host->hclk)) {
+                dev_err(&pdev->dev, "cannot get clock \"%s\"\n", clk_name);
+                ret = PTR_ERR(host->hclk);
+                goto clean_up1;
+        }
+        clk_enable(host->hclk);
+        host->clk = clk_get_rate(host->hclk);
+        host->pd = pdev;
+
+        init_waitqueue_head(&host->intr_wait);
+
+        mmc->ops = &sh_mmcif_ops;
+        mmc->f_max = host->clk;
+        /* close to 400KHz */
+        if (mmc->f_max < 51200000)
+                mmc->f_min = mmc->f_max / 128;
+        else if (mmc->f_max < 102400000)
+                mmc->f_min = mmc->f_max / 256;
+        else
+                mmc->f_min = mmc->f_max / 512;
+        if (pd->ocr)
+                mmc->ocr_avail = pd->ocr;
+        mmc->caps = MMC_CAP_MMC_HIGHSPEED;
+        if (pd->caps)
+                mmc->caps |= pd->caps;
+        mmc->max_phys_segs = 128;
+        mmc->max_hw_segs = 128;
+        mmc->max_blk_size = 512;
+        mmc->max_blk_count = 65535;
+        mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count;
+        mmc->max_seg_size = mmc->max_req_size;
+
+        sh_mmcif_sync_reset(host);
+        platform_set_drvdata(pdev, host);
+        mmc_add_host(mmc);
+
+        ret = request_irq(irq[0], sh_mmcif_intr, 0, "sh_mmc:error", host);
+        if (ret) {
+                pr_err(DRIVER_NAME": request_irq error (sh_mmc:error)\n");
+                goto clean_up2;
+        }
+        ret = request_irq(irq[1], sh_mmcif_intr, 0, "sh_mmc:int", host);
+        if (ret) {
+                free_irq(irq[0], host);
+                pr_err(DRIVER_NAME": request_irq error (sh_mmc:int)\n");
+                goto clean_up2;
+        }
+
+        sh_mmcif_writel(host, MMCIF_CE_INT_MASK, MASK_ALL);
+        sh_mmcif_detect(host->mmc);
+
+        pr_info("%s: driver version %s\n", DRIVER_NAME, DRIVER_VERSION);
+        pr_debug("%s: chip ver H'%04x\n", DRIVER_NAME,
+                        sh_mmcif_readl(host, MMCIF_CE_VERSION) & 0x0000ffff);
+        return ret;
+
+clean_up2:
+        clk_disable(host->hclk);
+clean_up1:
+        mmc_free_host(mmc);
+clean_up:
+        if (reg)
+                iounmap(reg);
+        return ret;
+}
+
+static int __devexit sh_mmcif_remove(struct platform_device *pdev)
+{
+        struct sh_mmcif_host *host = platform_get_drvdata(pdev);
+        int irq[2];
+
+        sh_mmcif_writel(host, MMCIF_CE_INT_MASK, MASK_ALL);
+
+        irq[0] = platform_get_irq(pdev, 0);
+        irq[1] = platform_get_irq(pdev, 1);
+
+        if (host->addr)
+                iounmap(host->addr);
+
+        platform_set_drvdata(pdev, NULL);
+        mmc_remove_host(host->mmc);
+
+        free_irq(irq[0], host);
+        free_irq(irq[1], host);
+
+        clk_disable(host->hclk);
+        mmc_free_host(host->mmc);
+
+        return 0;
+}
+
+static struct platform_driver sh_mmcif_driver = {
+        .probe          = sh_mmcif_probe,
+        .remove         = sh_mmcif_remove,
+        .driver         = {
+                .name   = DRIVER_NAME,
+        },
+};
+
+static int __init sh_mmcif_init(void)
+{
+        return platform_driver_register(&sh_mmcif_driver);
+}
+
+static void __exit sh_mmcif_exit(void)
+{
+        platform_driver_unregister(&sh_mmcif_driver);
+}
+
+module_init(sh_mmcif_init);
+module_exit(sh_mmcif_exit);
+
+
+MODULE_DESCRIPTION("SuperH on-chip MMC/eMMC interface driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS(DRIVER_NAME);
+MODULE_AUTHOR("Yusuke Goda <yusuke.goda.sx@renesas.com>");
diff --git a/drivers/mmc/host/tifm_sd.c b/drivers/mmc/host/tifm_sd.c
index 82554ddec6b3..cec99958b652 100644
--- a/drivers/mmc/host/tifm_sd.c
+++ b/drivers/mmc/host/tifm_sd.c
@@ -1032,7 +1032,7 @@ static void tifm_sd_remove(struct tifm_dev *sock)
 
 static int tifm_sd_suspend(struct tifm_dev *sock, pm_message_t state)
 {
-        return mmc_suspend_host(tifm_get_drvdata(sock), state);
+        return mmc_suspend_host(tifm_get_drvdata(sock));
 }
 
 static int tifm_sd_resume(struct tifm_dev *sock)
diff --git a/drivers/mmc/host/tmio_mmc.c b/drivers/mmc/host/tmio_mmc.c
index 883fcac21004..ee7d0a5a51c4 100644
--- a/drivers/mmc/host/tmio_mmc.c
+++ b/drivers/mmc/host/tmio_mmc.c
@@ -768,7 +768,7 @@ static int tmio_mmc_suspend(struct platform_device *dev, pm_message_t state)
         struct mmc_host *mmc = platform_get_drvdata(dev);
         int ret;
 
-        ret = mmc_suspend_host(mmc, state);
+        ret = mmc_suspend_host(mmc);
 
         /* Tell MFD core it can disable us now.*/
         if (!ret && cell->disable)
diff --git a/drivers/mmc/host/via-sdmmc.c b/drivers/mmc/host/via-sdmmc.c
index 632858a94376..19f2d72dbca5 100644
--- a/drivers/mmc/host/via-sdmmc.c
+++ b/drivers/mmc/host/via-sdmmc.c
@@ -1280,7 +1280,7 @@ static int via_sd_suspend(struct pci_dev *pcidev, pm_message_t state)
         via_save_pcictrlreg(host);
         via_save_sdcreg(host);
 
-        ret = mmc_suspend_host(host->mmc, state);
+        ret = mmc_suspend_host(host->mmc);
 
         pci_save_state(pcidev);
         pci_enable_wake(pcidev, pci_choose_state(pcidev, state), 0);
diff --git a/drivers/mmc/host/wbsd.c b/drivers/mmc/host/wbsd.c
index 69efe01eece8..0012f5d13d28 100644
--- a/drivers/mmc/host/wbsd.c
+++ b/drivers/mmc/host/wbsd.c
@@ -1819,7 +1819,7 @@ static int wbsd_suspend(struct wbsd_host *host, pm_message_t state)
 {
         BUG_ON(host == NULL);
 
-        return mmc_suspend_host(host->mmc, state);
+        return mmc_suspend_host(host->mmc);
 }
 
 static int wbsd_resume(struct wbsd_host *host)
diff --git a/drivers/parport/parport_amiga.c b/drivers/parport/parport_amiga.c
index 1586e1caa2f5..8bef6d60f88b 100644
--- a/drivers/parport/parport_amiga.c
+++ b/drivers/parport/parport_amiga.c
@@ -18,6 +18,8 @@
 #include <linux/parport.h>
 #include <linux/ioport.h>
 #include <linux/interrupt.h>
+#include <linux/platform_device.h>
+
 #include <asm/setup.h>
 #include <asm/amigahw.h>
 #include <asm/irq.h>
@@ -31,7 +33,6 @@
 #define DPRINTK(x...)   do { } while (0)
 #endif
 
-static struct parport *this_port = NULL;
 
 static void amiga_write_data(struct parport *p, unsigned char data)
 {
@@ -227,18 +228,11 @@ static struct parport_operations pp_amiga_ops = {
 
 /* ----------- Initialisation code --------------------------------- */
 
-static int __init parport_amiga_init(void)
+static int __init amiga_parallel_probe(struct platform_device *pdev)
 {
         struct parport *p;
         int err;
 
-        if (!MACH_IS_AMIGA || !AMIGAHW_PRESENT(AMI_PARALLEL))
-                return -ENODEV;
-
-        err = -EBUSY;
-        if (!request_mem_region(CIAA_PHYSADDR-1+0x100, 0x100, "parallel"))
-                goto out_mem;
-
         ciaa.ddrb = 0xff;
         ciab.ddra &= 0xf8;
         mb();
@@ -246,41 +240,63 @@ static int __init parport_amiga_init(void)
         p = parport_register_port((unsigned long)&ciaa.prb, IRQ_AMIGA_CIAA_FLG,
                                    PARPORT_DMA_NONE, &pp_amiga_ops);
         if (!p)
-                goto out_port;
+                return -EBUSY;
 
-        err = request_irq(IRQ_AMIGA_CIAA_FLG, parport_irq_handler, 0, p->name, p);
+        err = request_irq(IRQ_AMIGA_CIAA_FLG, parport_irq_handler, 0, p->name,
+                          p);
         if (err)
                 goto out_irq;
 
-        this_port = p;
         printk(KERN_INFO "%s: Amiga built-in port using irq\n", p->name);
         /* XXX: set operating mode */
         parport_announce_port(p);
 
+        platform_set_drvdata(pdev, p);
+
         return 0;
 
 out_irq:
         parport_put_port(p);
-out_port:
-        release_mem_region(CIAA_PHYSADDR-1+0x100, 0x100);
-out_mem:
         return err;
 }
 
-static void __exit parport_amiga_exit(void)
+static int __exit amiga_parallel_remove(struct platform_device *pdev)
+{
+        struct parport *port = platform_get_drvdata(pdev);
+
+        parport_remove_port(port);
+        if (port->irq != PARPORT_IRQ_NONE)
+                free_irq(IRQ_AMIGA_CIAA_FLG, port);
+        parport_put_port(port);
+        platform_set_drvdata(pdev, NULL);
+        return 0;
+}
+
+static struct platform_driver amiga_parallel_driver = {
+        .remove = __exit_p(amiga_parallel_remove),
+        .driver   = {
+                .name   = "amiga-parallel",
+                .owner  = THIS_MODULE,
+        },
+};
+
+static int __init amiga_parallel_init(void)
+{
+        return platform_driver_probe(&amiga_parallel_driver,
+                                     amiga_parallel_probe);
+}
+
+module_init(amiga_parallel_init);
+
+static void __exit amiga_parallel_exit(void)
 {
-        parport_remove_port(this_port);
-        if (this_port->irq != PARPORT_IRQ_NONE)
-                free_irq(IRQ_AMIGA_CIAA_FLG, this_port);
-        parport_put_port(this_port);
-        release_mem_region(CIAA_PHYSADDR-1+0x100, 0x100);
+        platform_driver_unregister(&amiga_parallel_driver);
 }
 
+module_exit(amiga_parallel_exit);
 
 MODULE_AUTHOR("Joerg Dorchain <joerg@dorchain.net>");
 MODULE_DESCRIPTION("Parport Driver for Amiga builtin Port");
 MODULE_SUPPORTED_DEVICE("Amiga builtin Parallel Port");
 MODULE_LICENSE("GPL");
-
-module_init(parport_amiga_init)
-module_exit(parport_amiga_exit)
+MODULE_ALIAS("platform:amiga-parallel");
diff --git a/drivers/rapidio/Kconfig b/drivers/rapidio/Kconfig
index c32822ad84a4..070211a5955c 100644
--- a/drivers/rapidio/Kconfig
+++ b/drivers/rapidio/Kconfig
@@ -8,3 +8,27 @@ config RAPIDIO_DISC_TIMEOUT
         ---help---
           Amount of time a discovery node waits for a host to complete
           enumeration before giving up.
+
+config RAPIDIO_ENABLE_RX_TX_PORTS
+        bool "Enable RapidIO Input/Output Ports"
+        depends on RAPIDIO
+        ---help---
+          The RapidIO specification describes a Output port transmit
+          enable and a Input port receive enable. The recommended state
+          for Input ports and Output ports should be disabled. When
+          this switch is set the RapidIO subsystem will enable all
+          ports for Input/Output direction to allow other traffic
+          than Maintenance transfers.
+
+source "drivers/rapidio/switches/Kconfig"
+
+config RAPIDIO_DEBUG
+        bool "RapidIO subsystem debug messages"
+        depends on RAPIDIO
+        help
+          Say Y here if you want the RapidIO subsystem to produce a bunch of
+          debug messages to the system log. Select this if you are having a
+          problem with the RapidIO subsystem and want to see more of what is
+          going on.
+
+          If you are unsure about this, say N here.
diff --git a/drivers/rapidio/Makefile b/drivers/rapidio/Makefile
index 7c0e1818de51..b6139fe187bf 100644
--- a/drivers/rapidio/Makefile
+++ b/drivers/rapidio/Makefile
@@ -4,3 +4,7 @@
 obj-y += rio.o rio-access.o rio-driver.o rio-scan.o rio-sysfs.o
 
 obj-$(CONFIG_RAPIDIO)           += switches/
+
+ifeq ($(CONFIG_RAPIDIO_DEBUG),y)
+EXTRA_CFLAGS += -DDEBUG
+endif
diff --git a/drivers/rapidio/rio-scan.c b/drivers/rapidio/rio-scan.c
index 45415096c294..566432106cc5 100644
--- a/drivers/rapidio/rio-scan.c
+++ b/drivers/rapidio/rio-scan.c
@@ -4,6 +4,14 @@
  * Copyright 2005 MontaVista Software, Inc.
  * Matt Porter <mporter@kernel.crashing.org>
  *
+ * Copyright 2009 Integrated Device Technology, Inc.
+ * Alex Bounine <alexandre.bounine@idt.com>
+ * - Added Port-Write/Error Management initialization and handling
+ *
+ * Copyright 2009 Sysgo AG
+ * Thomas Moll <thomas.moll@sysgo.com>
+ * - Added Input- Output- enable functionality, to allow full communication
+ *
  * This program is free software; you can redistribute  it and/or modify it
  * under  the terms of  the GNU General  Public License as published by the
  * Free Software Foundation;  either version 2 of the  License, or (at your
@@ -31,15 +39,16 @@
 LIST_HEAD(rio_devices);
 static LIST_HEAD(rio_switches);
 
-#define RIO_ENUM_CMPL_MAGIC     0xdeadbeef
-
 static void rio_enum_timeout(unsigned long);
 
+static void rio_init_em(struct rio_dev *rdev);
+
 DEFINE_SPINLOCK(rio_global_list_lock);
 
 static int next_destid = 0;
 static int next_switchid = 0;
 static int next_net = 0;
+static int next_comptag;
 
 static struct timer_list rio_enum_timer =
 TIMER_INITIALIZER(rio_enum_timeout, 0, 0);
@@ -52,12 +61,6 @@ static int rio_mport_phys_table[] = {
         -1,
 };
 
-static int rio_sport_phys_table[] = {
-        RIO_EFB_PAR_EP_FREE_ID,
-        RIO_EFB_SER_EP_FREE_ID,
-        -1,
-};
-
 /**
  * rio_get_device_id - Get the base/extended device id for a device
  * @port: RIO master port
@@ -118,12 +121,26 @@ static int rio_clear_locks(struct rio_mport *port)
         u32 result;
         int ret = 0;
 
-        /* Write component tag CSR magic complete value */
-        rio_local_write_config_32(port, RIO_COMPONENT_TAG_CSR,
-                                  RIO_ENUM_CMPL_MAGIC);
-        list_for_each_entry(rdev, &rio_devices, global_list)
-            rio_write_config_32(rdev, RIO_COMPONENT_TAG_CSR,
-                                RIO_ENUM_CMPL_MAGIC);
+        /* Assign component tag to all devices */
+        next_comptag = 1;
+        rio_local_write_config_32(port, RIO_COMPONENT_TAG_CSR, next_comptag++);
+
+        list_for_each_entry(rdev, &rio_devices, global_list) {
+                /* Mark device as discovered */
+                rio_read_config_32(rdev,
+                                   rdev->phys_efptr + RIO_PORT_GEN_CTL_CSR,
+                                   &result);
+                rio_write_config_32(rdev,
+                                    rdev->phys_efptr + RIO_PORT_GEN_CTL_CSR,
+                                    result | RIO_PORT_GEN_DISCOVERED);
+
+                rio_write_config_32(rdev, RIO_COMPONENT_TAG_CSR, next_comptag);
+                rdev->comp_tag = next_comptag++;
+                if (next_comptag >= 0x10000) {
+                        pr_err("RIO: Component Tag Counter Overflow\n");
+                        break;
+                }
+        }
 
         /* Release host device id locks */
         rio_local_write_config_32(port, RIO_HOST_DID_LOCK_CSR,
@@ -229,27 +246,37 @@ static int rio_is_switch(struct rio_dev *rdev)
 }
 
 /**
- * rio_route_set_ops- Sets routing operations for a particular vendor switch
+ * rio_switch_init - Sets switch operations for a particular vendor switch
  * @rdev: RIO device
+ * @do_enum: Enumeration/Discovery mode flag
  *
- * Searches the RIO route ops table for known switch types. If the vid
- * and did match a switch table entry, then set the add_entry() and
- * get_entry() ops to the table entry values.
+ * Searches the RIO switch ops table for known switch types. If the vid
+ * and did match a switch table entry, then call switch initialization
+ * routine to setup switch-specific routines.
  */
-static void rio_route_set_ops(struct rio_dev *rdev)
+static void rio_switch_init(struct rio_dev *rdev, int do_enum)
 {
-        struct rio_route_ops *cur = __start_rio_route_ops;
-        struct rio_route_ops *end = __end_rio_route_ops;
+        struct rio_switch_ops *cur = __start_rio_switch_ops;
+        struct rio_switch_ops *end = __end_rio_switch_ops;
 
         while (cur < end) {
                 if ((cur->vid == rdev->vid) && (cur->did == rdev->did)) {
-                        pr_debug("RIO: adding routing ops for %s\n", rio_name(rdev));
-                        rdev->rswitch->add_entry = cur->add_hook;
-                        rdev->rswitch->get_entry = cur->get_hook;
+                        pr_debug("RIO: calling init routine for %s\n",
+                                 rio_name(rdev));
+                        cur->init_hook(rdev, do_enum);
+                        break;
                 }
                 cur++;
         }
 
+        if ((cur >= end) && (rdev->pef & RIO_PEF_STD_RT)) {
+                pr_debug("RIO: adding STD routing ops for %s\n",
+                        rio_name(rdev));
+                rdev->rswitch->add_entry = rio_std_route_add_entry;
+                rdev->rswitch->get_entry = rio_std_route_get_entry;
+                rdev->rswitch->clr_table = rio_std_route_clr_table;
+        }
+
         if (!rdev->rswitch->add_entry || !rdev->rswitch->get_entry)
                 printk(KERN_ERR "RIO: missing routing ops for %s\n",
                        rio_name(rdev));
@@ -281,6 +308,65 @@ static int __devinit rio_add_device(struct rio_dev *rdev)
 }
 
 /**
+ * rio_enable_rx_tx_port - enable input reciever and output transmitter of
+ * given port
+ * @port: Master port associated with the RIO network
+ * @local: local=1 select local port otherwise a far device is reached
+ * @destid: Destination ID of the device to check host bit
+ * @hopcount: Number of hops to reach the target
+ * @port_num: Port (-number on switch) to enable on a far end device
+ *
+ * Returns 0 or 1 from on General Control Command and Status Register
+ * (EXT_PTR+0x3C)
+ */
+inline int rio_enable_rx_tx_port(struct rio_mport *port,
+                                 int local, u16 destid,
+                                 u8 hopcount, u8 port_num) {
+#ifdef CONFIG_RAPIDIO_ENABLE_RX_TX_PORTS
+        u32 regval;
+        u32 ext_ftr_ptr;
+
+        /*
+        * enable rx input tx output port
+        */
+        pr_debug("rio_enable_rx_tx_port(local = %d, destid = %d, hopcount = "
+                 "%d, port_num = %d)\n", local, destid, hopcount, port_num);
+
+        ext_ftr_ptr = rio_mport_get_physefb(port, local, destid, hopcount);
+
+        if (local) {
+                rio_local_read_config_32(port, ext_ftr_ptr +
+                                RIO_PORT_N_CTL_CSR(0),
+                                &regval);
+        } else {
+                if (rio_mport_read_config_32(port, destid, hopcount,
+                ext_ftr_ptr + RIO_PORT_N_CTL_CSR(port_num), &regval) < 0)
+                        return -EIO;
+        }
+
+        if (regval & RIO_PORT_N_CTL_P_TYP_SER) {
+                /* serial */
+                regval = regval | RIO_PORT_N_CTL_EN_RX_SER
+                                | RIO_PORT_N_CTL_EN_TX_SER;
+        } else {
+                /* parallel */
+                regval = regval | RIO_PORT_N_CTL_EN_RX_PAR
+                                | RIO_PORT_N_CTL_EN_TX_PAR;
+        }
+
+        if (local) {
+                rio_local_write_config_32(port, ext_ftr_ptr +
+                                          RIO_PORT_N_CTL_CSR(0), regval);
+        } else {
+                if (rio_mport_write_config_32(port, destid, hopcount,
+                    ext_ftr_ptr + RIO_PORT_N_CTL_CSR(port_num), regval) < 0)
+                        return -EIO;
+        }
+#endif
+        return 0;
+}
+
+/**
  * rio_setup_device- Allocates and sets up a RIO device
  * @net: RIO network
  * @port: Master port to send transactions
@@ -325,8 +411,14 @@ static struct rio_dev __devinit *rio_setup_device(struct rio_net *net,
         rdev->asm_rev = result >> 16;
         rio_mport_read_config_32(port, destid, hopcount, RIO_PEF_CAR,
                                  &rdev->pef);
-        if (rdev->pef & RIO_PEF_EXT_FEATURES)
+        if (rdev->pef & RIO_PEF_EXT_FEATURES) {
                 rdev->efptr = result & 0xffff;
+                rdev->phys_efptr = rio_mport_get_physefb(port, 0, destid,
+                                                         hopcount);
+
+                rdev->em_efptr = rio_mport_get_feature(port, 0, destid,
+                                                hopcount, RIO_EFB_ERR_MGMNT);
+        }
 
         rio_mport_read_config_32(port, destid, hopcount, RIO_SRC_OPS_CAR,
                                  &rdev->src_ops);
@@ -349,12 +441,13 @@ static struct rio_dev __devinit *rio_setup_device(struct rio_net *net,
         if (rio_is_switch(rdev)) {
                 rio_mport_read_config_32(port, destid, hopcount,
                                          RIO_SWP_INFO_CAR, &rdev->swpinfo);
-                rswitch = kmalloc(sizeof(struct rio_switch), GFP_KERNEL);
+                rswitch = kzalloc(sizeof(struct rio_switch), GFP_KERNEL);
                 if (!rswitch)
                         goto cleanup;
                 rswitch->switchid = next_switchid;
                 rswitch->hopcount = hopcount;
                 rswitch->destid = destid;
+                rswitch->port_ok = 0;
                 rswitch->route_table = kzalloc(sizeof(u8)*
                                         RIO_MAX_ROUTE_ENTRIES(port->sys_size),
                                         GFP_KERNEL);
@@ -367,13 +460,22 @@ static struct rio_dev __devinit *rio_setup_device(struct rio_net *net,
                 rdev->rswitch = rswitch;
                 dev_set_name(&rdev->dev, "%02x:s:%04x", rdev->net->id,
                              rdev->rswitch->switchid);
-                rio_route_set_ops(rdev);
+                rio_switch_init(rdev, do_enum);
+
+                if (do_enum && rdev->rswitch->clr_table)
+                        rdev->rswitch->clr_table(port, destid, hopcount,
+                                                 RIO_GLOBAL_TABLE);
 
                 list_add_tail(&rswitch->node, &rio_switches);
 
-        } else
+        } else {
+                if (do_enum)
+                        /*Enable Input Output Port (transmitter reviever)*/
+                        rio_enable_rx_tx_port(port, 0, destid, hopcount, 0);
+
                 dev_set_name(&rdev->dev, "%02x:e:%04x", rdev->net->id,
                              rdev->destid);
+        }
 
         rdev->dev.bus = &rio_bus_type;
 
@@ -414,23 +516,29 @@ cleanup:
  *
  * Reads the port error status CSR for a particular switch port to
  * determine if the port has an active link.  Returns
- * %PORT_N_ERR_STS_PORT_OK if the port is active or %0 if it is
+ * %RIO_PORT_N_ERR_STS_PORT_OK if the port is active or %0 if it is
  * inactive.
  */
 static int
 rio_sport_is_active(struct rio_mport *port, u16 destid, u8 hopcount, int sport)
 {
-        u32 result;
+        u32 result = 0;
         u32 ext_ftr_ptr;
 
-        int *entry = rio_sport_phys_table;
-
-        do {
-                if ((ext_ftr_ptr =
-                     rio_mport_get_feature(port, 0, destid, hopcount, *entry)))
+        ext_ftr_ptr = rio_mport_get_efb(port, 0, destid, hopcount, 0);
 
+        while (ext_ftr_ptr) {
+                rio_mport_read_config_32(port, destid, hopcount,
+                                         ext_ftr_ptr, &result);
+                result = RIO_GET_BLOCK_ID(result);
+                if ((result == RIO_EFB_SER_EP_FREE_ID) ||
+                    (result == RIO_EFB_SER_EP_FREE_ID_V13P) ||
+                    (result == RIO_EFB_SER_EP_FREC_ID))
                         break;
-        } while (*++entry >= 0);
+
+                ext_ftr_ptr = rio_mport_get_efb(port, 0, destid, hopcount,
+                                                ext_ftr_ptr);
+        }
 
         if (ext_ftr_ptr)
                 rio_mport_read_config_32(port, destid, hopcount,
@@ -438,7 +546,81 @@ rio_sport_is_active(struct rio_mport *port, u16 destid, u8 hopcount, int sport)
                                          RIO_PORT_N_ERR_STS_CSR(sport),
                                          &result);
 
-        return (result & PORT_N_ERR_STS_PORT_OK);
+        return result & RIO_PORT_N_ERR_STS_PORT_OK;
+}
+
+/**
+ * rio_lock_device - Acquires host device lock for specified device
+ * @port: Master port to send transaction
+ * @destid: Destination ID for device/switch
+ * @hopcount: Hopcount to reach switch
+ * @wait_ms: Max wait time in msec (0 = no timeout)
+ *
+ * Attepts to acquire host device lock for specified device
+ * Returns 0 if device lock acquired or EINVAL if timeout expires.
+ */
+static int
+rio_lock_device(struct rio_mport *port, u16 destid, u8 hopcount, int wait_ms)
+{
+        u32 result;
+        int tcnt = 0;
+
+        /* Attempt to acquire device lock */
+        rio_mport_write_config_32(port, destid, hopcount,
+                                  RIO_HOST_DID_LOCK_CSR, port->host_deviceid);
+        rio_mport_read_config_32(port, destid, hopcount,
+                                 RIO_HOST_DID_LOCK_CSR, &result);
+
+        while (result != port->host_deviceid) {
+                if (wait_ms != 0 && tcnt == wait_ms) {
+                        pr_debug("RIO: timeout when locking device %x:%x\n",
+                                destid, hopcount);
+                        return -EINVAL;
+                }
+
+                /* Delay a bit */
+                mdelay(1);
+                tcnt++;
+                /* Try to acquire device lock again */
+                rio_mport_write_config_32(port, destid,
+                        hopcount,
+                        RIO_HOST_DID_LOCK_CSR,
+                        port->host_deviceid);
+                rio_mport_read_config_32(port, destid,
+                        hopcount,
+                        RIO_HOST_DID_LOCK_CSR, &result);
+        }
+
+        return 0;
+}
+
+/**
+ * rio_unlock_device - Releases host device lock for specified device
+ * @port: Master port to send transaction
+ * @destid: Destination ID for device/switch
+ * @hopcount: Hopcount to reach switch
+ *
+ * Returns 0 if device lock released or EINVAL if fails.
+ */
+static int
+rio_unlock_device(struct rio_mport *port, u16 destid, u8 hopcount)
+{
+        u32 result;
+
+        /* Release device lock */
+        rio_mport_write_config_32(port, destid,
+                                  hopcount,
+                                  RIO_HOST_DID_LOCK_CSR,
+                                  port->host_deviceid);
+        rio_mport_read_config_32(port, destid, hopcount,
+                RIO_HOST_DID_LOCK_CSR, &result);
+        if ((result & 0xffff) != 0xffff) {
+                pr_debug("RIO: badness when releasing device lock %x:%x\n",
+                         destid, hopcount);
+                return -EINVAL;
+        }
+
+        return 0;
 }
 
 /**
@@ -448,6 +630,7 @@ rio_sport_is_active(struct rio_mport *port, u16 destid, u8 hopcount, int sport)
  * @table: Routing table ID
  * @route_destid: Destination ID to be routed
  * @route_port: Port number to be routed
+ * @lock: lock switch device flag
  *
  * Calls the switch specific add_entry() method to add a route entry
  * on a switch. The route table can be specified using the @table
@@ -456,12 +639,26 @@ rio_sport_is_active(struct rio_mport *port, u16 destid, u8 hopcount, int sport)
  * %RIO_GLOBAL_TABLE in @table. Returns %0 on success or %-EINVAL
  * on failure.
  */
-static int rio_route_add_entry(struct rio_mport *mport, struct rio_switch *rswitch,
-                               u16 table, u16 route_destid, u8 route_port)
+static int
+rio_route_add_entry(struct rio_mport *mport, struct rio_switch *rswitch,
+                    u16 table, u16 route_destid, u8 route_port, int lock)
 {
-        return rswitch->add_entry(mport, rswitch->destid,
+        int rc;
+
+        if (lock) {
+                rc = rio_lock_device(mport, rswitch->destid,
+                                     rswitch->hopcount, 1000);
+                if (rc)
+                        return rc;
+        }
+
+        rc = rswitch->add_entry(mport, rswitch->destid,
                                         rswitch->hopcount, table,
                                         route_destid, route_port);
+        if (lock)
+                rio_unlock_device(mport, rswitch->destid, rswitch->hopcount);
+
+        return rc;
 }
 
 /**
@@ -471,6 +668,7 @@ static int rio_route_add_entry(struct rio_mport *mport, struct rio_switch *rswit
  * @table: Routing table ID
  * @route_destid: Destination ID to be routed
  * @route_port: Pointer to read port number into
+ * @lock: lock switch device flag
  *
  * Calls the switch specific get_entry() method to read a route entry
  * in a switch. The route table can be specified using the @table
@@ -481,11 +679,24 @@ static int rio_route_add_entry(struct rio_mport *mport, struct rio_switch *rswit
  */
 static int
 rio_route_get_entry(struct rio_mport *mport, struct rio_switch *rswitch, u16 table,
-                    u16 route_destid, u8 * route_port)
+                    u16 route_destid, u8 *route_port, int lock)
 {
-        return rswitch->get_entry(mport, rswitch->destid,
+        int rc;
+
+        if (lock) {
+                rc = rio_lock_device(mport, rswitch->destid,
+                                     rswitch->hopcount, 1000);
+                if (rc)
+                        return rc;
+        }
+
+        rc = rswitch->get_entry(mport, rswitch->destid,
                                         rswitch->hopcount, table,
                                         route_destid, route_port);
+        if (lock)
+                rio_unlock_device(mport, rswitch->destid, rswitch->hopcount);
+
+        return rc;
 }
 
 /**
@@ -625,14 +836,14 @@ static int __devinit rio_enum_peer(struct rio_net *net, struct rio_mport *port,
                 sw_inport = rio_get_swpinfo_inport(port,
                                 RIO_ANY_DESTID(port->sys_size), hopcount);
                 rio_route_add_entry(port, rdev->rswitch, RIO_GLOBAL_TABLE,
-                                    port->host_deviceid, sw_inport);
+                                    port->host_deviceid, sw_inport, 0);
                 rdev->rswitch->route_table[port->host_deviceid] = sw_inport;
 
                 for (destid = 0; destid < next_destid; destid++) {
                         if (destid == port->host_deviceid)
                                 continue;
                         rio_route_add_entry(port, rdev->rswitch, RIO_GLOBAL_TABLE,
-                                            destid, sw_inport);
+                                            destid, sw_inport, 0);
                         rdev->rswitch->route_table[destid] = sw_inport;
                 }
 
@@ -644,8 +855,15 @@ static int __devinit rio_enum_peer(struct rio_net *net, struct rio_mport *port,
                     rio_name(rdev), rdev->vid, rdev->did, num_ports);
                 sw_destid = next_destid;
                 for (port_num = 0; port_num < num_ports; port_num++) {
-                        if (sw_inport == port_num)
+                        /*Enable Input Output Port (transmitter reviever)*/
+                        rio_enable_rx_tx_port(port, 0,
+                                              RIO_ANY_DESTID(port->sys_size),
+                                              hopcount, port_num);
+
+                        if (sw_inport == port_num) {
+                                rdev->rswitch->port_ok |= (1 << port_num);
                                 continue;
+                        }
 
                         cur_destid = next_destid;
 
@@ -655,10 +873,11 @@ static int __devinit rio_enum_peer(struct rio_net *net, struct rio_mport *port,
                                 pr_debug(
                                     "RIO: scanning device on port %d\n",
                                     port_num);
+                                rdev->rswitch->port_ok |= (1 << port_num);
                                 rio_route_add_entry(port, rdev->rswitch,
                                                 RIO_GLOBAL_TABLE,
                                                 RIO_ANY_DESTID(port->sys_size),
-                                                port_num);
+                                                port_num, 0);
 
                                 if (rio_enum_peer(net, port, hopcount + 1) < 0)
                                         return -1;
@@ -672,15 +891,35 @@ static int __devinit rio_enum_peer(struct rio_net *net, struct rio_mport *port,
                                                 rio_route_add_entry(port, rdev->rswitch,
                                                                     RIO_GLOBAL_TABLE,
                                                                     destid,
-                                                                    port_num);
+                                                                    port_num,
+                                                                    0);
                                                 rdev->rswitch->
                                                     route_table[destid] =
                                                     port_num;
                                         }
                                 }
+                        } else {
+                                /* If switch supports Error Management,
+                                 * set PORT_LOCKOUT bit for unused port
+                                 */
+                                if (rdev->em_efptr)
+                                        rio_set_port_lockout(rdev, port_num, 1);
+
+                                rdev->rswitch->port_ok &= ~(1 << port_num);
                         }
                 }
 
+                /* Direct Port-write messages to the enumeratiing host */
+                if ((rdev->src_ops & RIO_SRC_OPS_PORT_WRITE) &&
+                    (rdev->em_efptr)) {
+                        rio_write_config_32(rdev,
+                                        rdev->em_efptr + RIO_EM_PW_TGT_DEVID,
+                                        (port->host_deviceid << 16) |
+                                        (port->sys_size << 15));
+                }
+
+                rio_init_em(rdev);
+
                 /* Check for empty switch */
                 if (next_destid == sw_destid) {
                         next_destid++;
@@ -700,21 +939,16 @@ static int __devinit rio_enum_peer(struct rio_net *net, struct rio_mport *port,
  * rio_enum_complete- Tests if enumeration of a network is complete
  * @port: Master port to send transaction
  *
- * Tests the Component Tag CSR for presence of the magic enumeration
- * complete flag. Return %1 if enumeration is complete or %0 if
+ * Tests the Component Tag CSR for non-zero value (enumeration
+ * complete flag). Return %1 if enumeration is complete or %0 if
  * enumeration is incomplete.
  */
 static int rio_enum_complete(struct rio_mport *port)
 {
         u32 tag_csr;
-        int ret = 0;
 
         rio_local_read_config_32(port, RIO_COMPONENT_TAG_CSR, &tag_csr);
-
-        if (tag_csr == RIO_ENUM_CMPL_MAGIC)
-                ret = 1;
-
-        return ret;
+        return (tag_csr & 0xffff) ? 1 : 0;
 }
 
 /**
@@ -763,17 +997,21 @@ rio_disc_peer(struct rio_net *net, struct rio_mport *port, u16 destid,
                                 pr_debug(
                                     "RIO: scanning device on port %d\n",
                                     port_num);
+
+                                rio_lock_device(port, destid, hopcount, 1000);
+
                                 for (ndestid = 0;
                                      ndestid < RIO_ANY_DESTID(port->sys_size);
                                      ndestid++) {
                                         rio_route_get_entry(port, rdev->rswitch,
                                                             RIO_GLOBAL_TABLE,
                                                             ndestid,
-                                                            &route_port);
+                                                            &route_port, 0);
                                         if (route_port == port_num)
                                                 break;
                                 }
 
+                                rio_unlock_device(port, destid, hopcount);
                                 if (rio_disc_peer
                                     (net, port, ndestid, hopcount + 1) < 0)
                                         return -1;
@@ -792,7 +1030,7 @@ rio_disc_peer(struct rio_net *net, struct rio_mport *port, u16 destid,
  *
  * Reads the port error status CSR for the master port to
  * determine if the port has an active link.  Returns
- * %PORT_N_ERR_STS_PORT_OK if the  master port is active
+ * %RIO_PORT_N_ERR_STS_PORT_OK if the  master port is active
  * or %0 if it is inactive.
  */
 static int rio_mport_is_active(struct rio_mport *port)
@@ -813,7 +1051,7 @@ static int rio_mport_is_active(struct rio_mport *port)
                                          RIO_PORT_N_ERR_STS_CSR(port->index),
                                          &result);
 
-        return (result & PORT_N_ERR_STS_PORT_OK);
+        return result & RIO_PORT_N_ERR_STS_PORT_OK;
 }
 
 /**
@@ -866,12 +1104,17 @@ static void rio_update_route_tables(struct rio_mport *port)
                                 continue;
 
                         if (RIO_INVALID_ROUTE == rswitch->route_table[destid]) {
+                                /* Skip if destid ends in empty switch*/
+                                if (rswitch->destid == destid)
+                                        continue;
 
                                 sport = rio_get_swpinfo_inport(port,
                                                 rswitch->destid, rswitch->hopcount);
 
                                 if (rswitch->add_entry) {
-                                        rio_route_add_entry(port, rswitch, RIO_GLOBAL_TABLE, destid, sport);
+                                        rio_route_add_entry(port, rswitch,
+                                                RIO_GLOBAL_TABLE, destid,
+                                                sport, 0);
                                         rswitch->route_table[destid] = sport;
                                 }
                         }
@@ -880,6 +1123,32 @@ static void rio_update_route_tables(struct rio_mport *port)
 }
 
 /**
+ * rio_init_em - Initializes RIO Error Management (for switches)
+ * @port: Master port associated with the RIO network
+ *
+ * For each enumerated switch, call device-specific error management
+ * initialization routine (if supplied by the switch driver).
+ */
+static void rio_init_em(struct rio_dev *rdev)
+{
+        if (rio_is_switch(rdev) && (rdev->em_efptr) &&
+            (rdev->rswitch->em_init)) {
+                rdev->rswitch->em_init(rdev);
+        }
+}
+
+/**
+ * rio_pw_enable - Enables/disables port-write handling by a master port
+ * @port: Master port associated with port-write handling
+ * @enable:  1=enable,  0=disable
+ */
+static void rio_pw_enable(struct rio_mport *port, int enable)
+{
+        if (port->ops->pwenable)
+                port->ops->pwenable(port, enable);
+}
+
+/**
  * rio_enum_mport- Start enumeration through a master port
  * @mport: Master port to send transactions
  *
@@ -911,6 +1180,10 @@ int __devinit rio_enum_mport(struct rio_mport *mport)
                         rc = -ENOMEM;
                         goto out;
                 }
+
+                /* Enable Input Output Port (transmitter reviever) */
+                rio_enable_rx_tx_port(mport, 1, 0, 0, 0);
+
                 if (rio_enum_peer(net, mport, 0) < 0) {
                         /* A higher priority host won enumeration, bail. */
                         printk(KERN_INFO
@@ -922,6 +1195,7 @@ int __devinit rio_enum_mport(struct rio_mport *mport)
                 }
                 rio_update_route_tables(mport);
                 rio_clear_locks(mport);
+                rio_pw_enable(mport, 1);
         } else {
                 printk(KERN_INFO "RIO: master port %d link inactive\n",
                        mport->id);
@@ -945,15 +1219,22 @@ static void rio_build_route_tables(void)
         u8 sport;
 
         list_for_each_entry(rdev, &rio_devices, global_list)
-            if (rio_is_switch(rdev))
-                for (i = 0;
-                     i < RIO_MAX_ROUTE_ENTRIES(rdev->net->hport->sys_size);
-                     i++) {
-                        if (rio_route_get_entry
-                            (rdev->net->hport, rdev->rswitch, RIO_GLOBAL_TABLE,
-                             i, &sport) < 0)
-                                continue;
-                        rdev->rswitch->route_table[i] = sport;
+                if (rio_is_switch(rdev)) {
+                        rio_lock_device(rdev->net->hport, rdev->rswitch->destid,
+                                        rdev->rswitch->hopcount, 1000);
+                        for (i = 0;
+                             i < RIO_MAX_ROUTE_ENTRIES(rdev->net->hport->sys_size);
+                             i++) {
+                                if (rio_route_get_entry
+                                    (rdev->net->hport, rdev->rswitch,
+                                     RIO_GLOBAL_TABLE, i, &sport, 0) < 0)
+                                        continue;
+                                rdev->rswitch->route_table[i] = sport;
+                        }
+
+                        rio_unlock_device(rdev->net->hport,
+                                          rdev->rswitch->destid,
+                                          rdev->rswitch->hopcount);
                 }
 }
 
@@ -1012,6 +1293,13 @@ int __devinit rio_disc_mport(struct rio_mport *mport)
                 del_timer_sync(&rio_enum_timer);
 
                 pr_debug("done\n");
+
+                /* Read DestID assigned by enumerator */
+                rio_local_read_config_32(mport, RIO_DID_CSR,
+                                         &mport->host_deviceid);
+                mport->host_deviceid = RIO_GET_DID(mport->sys_size,
+                                                   mport->host_deviceid);
+
                 if (rio_disc_peer(net, mport, RIO_ANY_DESTID(mport->sys_size),
                                         0) < 0) {
                         printk(KERN_INFO
diff --git a/drivers/rapidio/rio.c b/drivers/rapidio/rio.c
index 6395c780008b..777e099a3d8f 100644
--- a/drivers/rapidio/rio.c
+++ b/drivers/rapidio/rio.c
@@ -5,6 +5,10 @@
  * Copyright 2005 MontaVista Software, Inc.
  * Matt Porter <mporter@kernel.crashing.org>
  *
+ * Copyright 2009 Integrated Device Technology, Inc.
+ * Alex Bounine <alexandre.bounine@idt.com>
+ * - Added Port-Write/Error Management initialization and handling
+ *
  * This program is free software; you can redistribute  it and/or modify it
  * under  the terms of  the GNU General  Public License as published by the
  * Free Software Foundation;  either version 2 of the  License, or (at your
@@ -333,6 +337,328 @@ int rio_release_outb_dbell(struct rio_dev *rdev, struct resource *res)
 }
 
 /**
+ * rio_request_inb_pwrite - request inbound port-write message service
+ * @mport: RIO device to which register inbound port-write callback routine
+ * @pwcback: Callback routine to execute when port-write is received
+ *
+ * Binds a port-write callback function to the RapidIO device.
+ * Returns 0 if the request has been satisfied.
+ */
+int rio_request_inb_pwrite(struct rio_dev *rdev,
+        int (*pwcback)(struct rio_dev *rdev, union rio_pw_msg *msg, int step))
+{
+        int rc = 0;
+
+        spin_lock(&rio_global_list_lock);
+        if (rdev->pwcback != NULL)
+                rc = -ENOMEM;
+        else
+                rdev->pwcback = pwcback;
+
+        spin_unlock(&rio_global_list_lock);
+        return rc;
+}
+EXPORT_SYMBOL_GPL(rio_request_inb_pwrite);
+
+/**
+ * rio_release_inb_pwrite - release inbound port-write message service
+ * @rdev: RIO device which registered for inbound port-write callback
+ *
+ * Removes callback from the rio_dev structure. Returns 0 if the request
+ * has been satisfied.
+ */
+int rio_release_inb_pwrite(struct rio_dev *rdev)
+{
+        int rc = -ENOMEM;
+
+        spin_lock(&rio_global_list_lock);
+        if (rdev->pwcback) {
+                rdev->pwcback = NULL;
+                rc = 0;
+        }
+
+        spin_unlock(&rio_global_list_lock);
+        return rc;
+}
+EXPORT_SYMBOL_GPL(rio_release_inb_pwrite);
+
+/**
+ * rio_mport_get_physefb - Helper function that returns register offset
+ *                      for Physical Layer Extended Features Block.
+ * @rdev: RIO device
+ */
+u32
+rio_mport_get_physefb(struct rio_mport *port, int local,
+                      u16 destid, u8 hopcount)
+{
+        u32 ext_ftr_ptr;
+        u32 ftr_header;
+
+        ext_ftr_ptr = rio_mport_get_efb(port, local, destid, hopcount, 0);
+
+        while (ext_ftr_ptr)  {
+                if (local)
+                        rio_local_read_config_32(port, ext_ftr_ptr,
+                                                 &ftr_header);
+                else
+                        rio_mport_read_config_32(port, destid, hopcount,
+                                                 ext_ftr_ptr, &ftr_header);
+
+                ftr_header = RIO_GET_BLOCK_ID(ftr_header);
+                switch (ftr_header) {
+
+                case RIO_EFB_SER_EP_ID_V13P:
+                case RIO_EFB_SER_EP_REC_ID_V13P:
+                case RIO_EFB_SER_EP_FREE_ID_V13P:
+                case RIO_EFB_SER_EP_ID:
+                case RIO_EFB_SER_EP_REC_ID:
+                case RIO_EFB_SER_EP_FREE_ID:
+                case RIO_EFB_SER_EP_FREC_ID:
+
+                        return ext_ftr_ptr;
+
+                default:
+                        break;
+                }
+
+                ext_ftr_ptr = rio_mport_get_efb(port, local, destid,
+                                                hopcount, ext_ftr_ptr);
+        }
+
+        return ext_ftr_ptr;
+}
+
+/**
+ * rio_get_comptag - Begin or continue searching for a RIO device by component tag
+ * @comp_tag: RIO component tad to match
+ * @from: Previous RIO device found in search, or %NULL for new search
+ *
+ * Iterates through the list of known RIO devices. If a RIO device is
+ * found with a matching @comp_tag, a pointer to its device
+ * structure is returned. Otherwise, %NULL is returned. A new search
+ * is initiated by passing %NULL to the @from argument. Otherwise, if
+ * @from is not %NULL, searches continue from next device on the global
+ * list.
+ */
+static struct rio_dev *rio_get_comptag(u32 comp_tag, struct rio_dev *from)
+{
+        struct list_head *n;
+        struct rio_dev *rdev;
+
+        spin_lock(&rio_global_list_lock);
+        n = from ? from->global_list.next : rio_devices.next;
+
+        while (n && (n != &rio_devices)) {
+                rdev = rio_dev_g(n);
+                if (rdev->comp_tag == comp_tag)
+                        goto exit;
+                n = n->next;
+        }
+        rdev = NULL;
+exit:
+        spin_unlock(&rio_global_list_lock);
+        return rdev;
+}
+
+/**
+ * rio_set_port_lockout - Sets/clears LOCKOUT bit (RIO EM 1.3) for a switch port.
+ * @rdev: Pointer to RIO device control structure
+ * @pnum: Switch port number to set LOCKOUT bit
+ * @lock: Operation : set (=1) or clear (=0)
+ */
+int rio_set_port_lockout(struct rio_dev *rdev, u32 pnum, int lock)
+{
+        u8 hopcount = 0xff;
+        u16 destid = rdev->destid;
+        u32 regval;
+
+        if (rdev->rswitch) {
+                destid = rdev->rswitch->destid;
+                hopcount = rdev->rswitch->hopcount;
+        }
+
+        rio_mport_read_config_32(rdev->net->hport, destid, hopcount,
+                                 rdev->phys_efptr + RIO_PORT_N_CTL_CSR(pnum),
+                                 &regval);
+        if (lock)
+                regval |= RIO_PORT_N_CTL_LOCKOUT;
+        else
+                regval &= ~RIO_PORT_N_CTL_LOCKOUT;
+
+        rio_mport_write_config_32(rdev->net->hport, destid, hopcount,
+                                  rdev->phys_efptr + RIO_PORT_N_CTL_CSR(pnum),
+                                  regval);
+        return 0;
+}
+
+/**
+ * rio_inb_pwrite_handler - process inbound port-write message
+ * @pw_msg: pointer to inbound port-write message
+ *
+ * Processes an inbound port-write message. Returns 0 if the request
+ * has been satisfied.
+ */
+int rio_inb_pwrite_handler(union rio_pw_msg *pw_msg)
+{
+        struct rio_dev *rdev;
+        struct rio_mport *mport;
+        u8 hopcount;
+        u16 destid;
+        u32 err_status;
+        int rc, portnum;
+
+        rdev = rio_get_comptag(pw_msg->em.comptag, NULL);
+        if (rdev == NULL) {
+                /* Someting bad here (probably enumeration error) */
+                pr_err("RIO: %s No matching device for CTag 0x%08x\n",
+                        __func__, pw_msg->em.comptag);
+                return -EIO;
+        }
+
+        pr_debug("RIO: Port-Write message from %s\n", rio_name(rdev));
+
+#ifdef DEBUG_PW
+        {
+        u32 i;
+        for (i = 0; i < RIO_PW_MSG_SIZE/sizeof(u32);) {
+                        pr_debug("0x%02x: %08x %08x %08x %08x",
+                                 i*4, pw_msg->raw[i], pw_msg->raw[i + 1],
+                                 pw_msg->raw[i + 2], pw_msg->raw[i + 3]);
+                        i += 4;
+        }
+        pr_debug("\n");
+        }
+#endif
+
+        /* Call an external service function (if such is registered
+         * for this device). This may be the service for endpoints that send
+         * device-specific port-write messages. End-point messages expected
+         * to be handled completely by EP specific device driver.
+         * For switches rc==0 signals that no standard processing required.
+         */
+        if (rdev->pwcback != NULL) {
+                rc = rdev->pwcback(rdev, pw_msg, 0);
+                if (rc == 0)
+                        return 0;
+        }
+
+        /* For End-point devices processing stops here */
+        if (!(rdev->pef & RIO_PEF_SWITCH))
+                return 0;
+
+        if (rdev->phys_efptr == 0) {
+                pr_err("RIO_PW: Bad switch initialization for %s\n",
+                        rio_name(rdev));
+                return 0;
+        }
+
+        mport = rdev->net->hport;
+        destid = rdev->rswitch->destid;
+        hopcount = rdev->rswitch->hopcount;
+
+        /*
+         * Process the port-write notification from switch
+         */
+
+        portnum = pw_msg->em.is_port & 0xFF;
+
+        if (rdev->rswitch->em_handle)
+                rdev->rswitch->em_handle(rdev, portnum);
+
+        rio_mport_read_config_32(mport, destid, hopcount,
+                        rdev->phys_efptr + RIO_PORT_N_ERR_STS_CSR(portnum),
+                        &err_status);
+        pr_debug("RIO_PW: SP%d_ERR_STS_CSR=0x%08x\n", portnum, err_status);
+
+        if (pw_msg->em.errdetect) {
+                pr_debug("RIO_PW: RIO_EM_P%d_ERR_DETECT=0x%08x\n",
+                         portnum, pw_msg->em.errdetect);
+                /* Clear EM Port N Error Detect CSR */
+                rio_mport_write_config_32(mport, destid, hopcount,
+                        rdev->em_efptr + RIO_EM_PN_ERR_DETECT(portnum), 0);
+        }
+
+        if (pw_msg->em.ltlerrdet) {
+                pr_debug("RIO_PW: RIO_EM_LTL_ERR_DETECT=0x%08x\n",
+                         pw_msg->em.ltlerrdet);
+                /* Clear EM L/T Layer Error Detect CSR */
+                rio_mport_write_config_32(mport, destid, hopcount,
+                        rdev->em_efptr + RIO_EM_LTL_ERR_DETECT, 0);
+        }
+
+        /* Clear Port Errors */
+        rio_mport_write_config_32(mport, destid, hopcount,
+                        rdev->phys_efptr + RIO_PORT_N_ERR_STS_CSR(portnum),
+                        err_status & RIO_PORT_N_ERR_STS_CLR_MASK);
+
+        if (rdev->rswitch->port_ok & (1 << portnum)) {
+                if (err_status & RIO_PORT_N_ERR_STS_PORT_UNINIT) {
+                        rdev->rswitch->port_ok &= ~(1 << portnum);
+                        rio_set_port_lockout(rdev, portnum, 1);
+
+                        rio_mport_write_config_32(mport, destid, hopcount,
+                                rdev->phys_efptr +
+                                        RIO_PORT_N_ACK_STS_CSR(portnum),
+                                RIO_PORT_N_ACK_CLEAR);
+
+                        /* Schedule Extraction Service */
+                        pr_debug("RIO_PW: Device Extraction on [%s]-P%d\n",
+                               rio_name(rdev), portnum);
+                }
+        } else {
+                if (err_status & RIO_PORT_N_ERR_STS_PORT_OK) {
+                        rdev->rswitch->port_ok |= (1 << portnum);
+                        rio_set_port_lockout(rdev, portnum, 0);
+
+                        /* Schedule Insertion Service */
+                        pr_debug("RIO_PW: Device Insertion on [%s]-P%d\n",
+                               rio_name(rdev), portnum);
+                }
+        }
+
+        /* Clear Port-Write Pending bit */
+        rio_mport_write_config_32(mport, destid, hopcount,
+                        rdev->phys_efptr + RIO_PORT_N_ERR_STS_CSR(portnum),
+                        RIO_PORT_N_ERR_STS_PW_PEND);
+
+        return 0;
+}
+EXPORT_SYMBOL_GPL(rio_inb_pwrite_handler);
+
+/**
+ * rio_mport_get_efb - get pointer to next extended features block
+ * @port: Master port to issue transaction
+ * @local: Indicate a local master port or remote device access
+ * @destid: Destination ID of the device
+ * @hopcount: Number of switch hops to the device
+ * @from: Offset of  current Extended Feature block header (if 0 starts
+ * from ExtFeaturePtr)
+ */
+u32
+rio_mport_get_efb(struct rio_mport *port, int local, u16 destid,
+                      u8 hopcount, u32 from)
+{
+        u32 reg_val;
+
+        if (from == 0) {
+                if (local)
+                        rio_local_read_config_32(port, RIO_ASM_INFO_CAR,
+                                                 &reg_val);
+                else
+                        rio_mport_read_config_32(port, destid, hopcount,
+                                                 RIO_ASM_INFO_CAR, &reg_val);
+                return reg_val & RIO_EXT_FTR_PTR_MASK;
+        } else {
+                if (local)
+                        rio_local_read_config_32(port, from, &reg_val);
+                else
+                        rio_mport_read_config_32(port, destid, hopcount,
+                                                 from, &reg_val);
+                return RIO_GET_BLOCK_ID(reg_val);
+        }
+}
+
+/**
  * rio_mport_get_feature - query for devices' extended features
  * @port: Master port to issue transaction
  * @local: Indicate a local master port or remote device access
@@ -451,6 +777,111 @@ struct rio_dev *rio_get_device(u16 vid, u16 did, struct rio_dev *from)
         return rio_get_asm(vid, did, RIO_ANY_ID, RIO_ANY_ID, from);
 }
 
+/**
+ * rio_std_route_add_entry - Add switch route table entry using standard
+ *   registers defined in RIO specification rev.1.3
+ * @mport: Master port to issue transaction
+ * @destid: Destination ID of the device
+ * @hopcount: Number of switch hops to the device
+ * @table: routing table ID (global or port-specific)
+ * @route_destid: destID entry in the RT
+ * @route_port: destination port for specified destID
+ */
+int rio_std_route_add_entry(struct rio_mport *mport, u16 destid, u8 hopcount,
+                       u16 table, u16 route_destid, u8 route_port)
+{
+        if (table == RIO_GLOBAL_TABLE) {
+                rio_mport_write_config_32(mport, destid, hopcount,
+                                RIO_STD_RTE_CONF_DESTID_SEL_CSR,
+                                (u32)route_destid);
+                rio_mport_write_config_32(mport, destid, hopcount,
+                                RIO_STD_RTE_CONF_PORT_SEL_CSR,
+                                (u32)route_port);
+        }
+
+        udelay(10);
+        return 0;
+}
+
+/**
+ * rio_std_route_get_entry - Read switch route table entry (port number)
+ *   assosiated with specified destID using standard registers defined in RIO
+ *   specification rev.1.3
+ * @mport: Master port to issue transaction
+ * @destid: Destination ID of the device
+ * @hopcount: Number of switch hops to the device
+ * @table: routing table ID (global or port-specific)
+ * @route_destid: destID entry in the RT
+ * @route_port: returned destination port for specified destID
+ */
+int rio_std_route_get_entry(struct rio_mport *mport, u16 destid, u8 hopcount,
+                       u16 table, u16 route_destid, u8 *route_port)
+{
+        u32 result;
+
+        if (table == RIO_GLOBAL_TABLE) {
+                rio_mport_write_config_32(mport, destid, hopcount,
+                                RIO_STD_RTE_CONF_DESTID_SEL_CSR, route_destid);
+                rio_mport_read_config_32(mport, destid, hopcount,
+                                RIO_STD_RTE_CONF_PORT_SEL_CSR, &result);
+
+                *route_port = (u8)result;
+        }
+
+        return 0;
+}
+
+/**
+ * rio_std_route_clr_table - Clear swotch route table using standard registers
+ *   defined in RIO specification rev.1.3.
+ * @mport: Master port to issue transaction
+ * @local: Indicate a local master port or remote device access
+ * @destid: Destination ID of the device
+ * @hopcount: Number of switch hops to the device
+ * @table: routing table ID (global or port-specific)
+ */
+int rio_std_route_clr_table(struct rio_mport *mport, u16 destid, u8 hopcount,
+                       u16 table)
+{
+        u32 max_destid = 0xff;
+        u32 i, pef, id_inc = 1, ext_cfg = 0;
+        u32 port_sel = RIO_INVALID_ROUTE;
+
+        if (table == RIO_GLOBAL_TABLE) {
+                rio_mport_read_config_32(mport, destid, hopcount,
+                                         RIO_PEF_CAR, &pef);
+
+                if (mport->sys_size) {
+                        rio_mport_read_config_32(mport, destid, hopcount,
+                                                 RIO_SWITCH_RT_LIMIT,
+                                                 &max_destid);
+                        max_destid &= RIO_RT_MAX_DESTID;
+                }
+
+                if (pef & RIO_PEF_EXT_RT) {
+                        ext_cfg = 0x80000000;
+                        id_inc = 4;
+                        port_sel = (RIO_INVALID_ROUTE << 24) |
+                                   (RIO_INVALID_ROUTE << 16) |
+                                   (RIO_INVALID_ROUTE << 8) |
+                                   RIO_INVALID_ROUTE;
+                }
+
+                for (i = 0; i <= max_destid;) {
+                        rio_mport_write_config_32(mport, destid, hopcount,
+                                        RIO_STD_RTE_CONF_DESTID_SEL_CSR,
+                                        ext_cfg | i);
+                        rio_mport_write_config_32(mport, destid, hopcount,
+                                        RIO_STD_RTE_CONF_PORT_SEL_CSR,
+                                        port_sel);
+                        i += id_inc;
+                }
+        }
+
+        udelay(10);
+        return 0;
+}
+
 static void rio_fixup_device(struct rio_dev *dev)
 {
 }
diff --git a/drivers/rapidio/rio.h b/drivers/rapidio/rio.h
index 7786d02581f2..f27b7a9c47d2 100644
--- a/drivers/rapidio/rio.h
+++ b/drivers/rapidio/rio.h
@@ -18,38 +18,50 @@
 
 extern u32 rio_mport_get_feature(struct rio_mport *mport, int local, u16 destid,
                                  u8 hopcount, int ftr);
+extern u32 rio_mport_get_physefb(struct rio_mport *port, int local,
+                                 u16 destid, u8 hopcount);
+extern u32 rio_mport_get_efb(struct rio_mport *port, int local, u16 destid,
+                             u8 hopcount, u32 from);
 extern int rio_create_sysfs_dev_files(struct rio_dev *rdev);
 extern int rio_enum_mport(struct rio_mport *mport);
 extern int rio_disc_mport(struct rio_mport *mport);
+extern int rio_std_route_add_entry(struct rio_mport *mport, u16 destid,
+                                   u8 hopcount, u16 table, u16 route_destid,
+                                   u8 route_port);
+extern int rio_std_route_get_entry(struct rio_mport *mport, u16 destid,
+                                   u8 hopcount, u16 table, u16 route_destid,
+                                   u8 *route_port);
+extern int rio_std_route_clr_table(struct rio_mport *mport, u16 destid,
+                                   u8 hopcount, u16 table);
+extern int rio_set_port_lockout(struct rio_dev *rdev, u32 pnum, int lock);
 
 /* Structures internal to the RIO core code */
 extern struct device_attribute rio_dev_attrs[];
 extern spinlock_t rio_global_list_lock;
 
-extern struct rio_route_ops __start_rio_route_ops[];
-extern struct rio_route_ops __end_rio_route_ops[];
+extern struct rio_switch_ops __start_rio_switch_ops[];
+extern struct rio_switch_ops __end_rio_switch_ops[];
 
 /* Helpers internal to the RIO core code */
-#define DECLARE_RIO_ROUTE_SECTION(section, vid, did, add_hook, get_hook)  \
-        static struct rio_route_ops __rio_route_ops __used   \
-        __section(section)= { vid, did, add_hook, get_hook };
+#define DECLARE_RIO_SWITCH_SECTION(section, name, vid, did, init_hook) \
+        static const struct rio_switch_ops __rio_switch_##name __used \
+        __section(section) = { vid, did, init_hook };
 
 /**
- * DECLARE_RIO_ROUTE_OPS - Registers switch routing operations
+ * DECLARE_RIO_SWITCH_INIT - Registers switch initialization routine
  * @vid: RIO vendor ID
  * @did: RIO device ID
- * @add_hook: Callback that adds a route entry
- * @get_hook: Callback that gets a route entry
+ * @init_hook: Callback that performs switch-specific initialization
  *
- * Manipulating switch route tables in RIO is switch specific. This
- * registers a switch by vendor and device ID with two callbacks for
- * modifying and retrieving route entries in a switch. A &struct
- * rio_route_ops is initialized with the ops and placed into a
- * RIO-specific kernel section.
+ * Manipulating switch route tables and error management in RIO
+ * is switch specific. This registers a switch by vendor and device ID with
+ * initialization callback for setting up switch operations and (if required)
+ * hardware initialization. A &struct rio_switch_ops is initialized with
+ * pointer to the init routine and placed into a RIO-specific kernel section.
  */
-#define DECLARE_RIO_ROUTE_OPS(vid, did, add_hook, get_hook)             \
-        DECLARE_RIO_ROUTE_SECTION(.rio_route_ops,                       \
-                        vid, did, add_hook, get_hook)
+#define DECLARE_RIO_SWITCH_INIT(vid, did, init_hook)            \
+        DECLARE_RIO_SWITCH_SECTION(.rio_switch_ops, vid##did, \
+                        vid, did, init_hook)
 
 #define RIO_GET_DID(size, x)    (size ? (x & 0xffff) : ((x & 0x00ff0000) >> 16))
 #define RIO_SET_DID(size, x)    (size ? (x & 0xffff) : ((x & 0x000000ff) << 16))
diff --git a/drivers/rapidio/switches/Kconfig b/drivers/rapidio/switches/Kconfig
new file mode 100644
index 000000000000..2b4e9b2b6631
--- /dev/null
+++ b/drivers/rapidio/switches/Kconfig
@@ -0,0 +1,28 @@
+#
+# RapidIO switches configuration
+#
+config RAPIDIO_TSI57X
+        bool "IDT Tsi57x SRIO switches support"
+        depends on RAPIDIO
+        ---help---
+          Includes support for IDT Tsi57x family of serial RapidIO switches.
+
+config RAPIDIO_CPS_XX
+        bool "IDT CPS-xx SRIO switches support"
+        depends on RAPIDIO
+        ---help---
+          Includes support for IDT CPS-16/12/10/8 serial RapidIO switches.
+
+config RAPIDIO_TSI568
+        bool "Tsi568 SRIO switch support"
+        depends on RAPIDIO
+        default n
+        ---help---
+          Includes support for IDT Tsi568 serial RapidIO switch.
+
+config RAPIDIO_TSI500
+        bool "Tsi500 Parallel RapidIO switch support"
+        depends on RAPIDIO
+        default n
+        ---help---
+          Includes support for IDT Tsi500 parallel RapidIO switch.
diff --git a/drivers/rapidio/switches/Makefile b/drivers/rapidio/switches/Makefile
index b924f8301761..fe4adc3e8d5f 100644
--- a/drivers/rapidio/switches/Makefile
+++ b/drivers/rapidio/switches/Makefile
@@ -2,4 +2,11 @@
 # Makefile for RIO switches
 #
 
-obj-$(CONFIG_RAPIDIO)   += tsi500.o
+obj-$(CONFIG_RAPIDIO_TSI57X)    += tsi57x.o
+obj-$(CONFIG_RAPIDIO_CPS_XX)    += idtcps.o
+obj-$(CONFIG_RAPIDIO_TSI568)    += tsi568.o
+obj-$(CONFIG_RAPIDIO_TSI500)    += tsi500.o
+
+ifeq ($(CONFIG_RAPIDIO_DEBUG),y)
+EXTRA_CFLAGS += -DDEBUG
+endif
diff --git a/drivers/rapidio/switches/idtcps.c b/drivers/rapidio/switches/idtcps.c
new file mode 100644
index 000000000000..2c790c144f89
--- /dev/null
+++ b/drivers/rapidio/switches/idtcps.c
@@ -0,0 +1,137 @@
+/*
+ * IDT CPS RapidIO switches support
+ *
+ * Copyright 2009-2010 Integrated Device Technology, Inc.
+ * Alexandre Bounine <alexandre.bounine@idt.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/rio.h>
+#include <linux/rio_drv.h>
+#include <linux/rio_ids.h>
+#include "../rio.h"
+
+#define CPS_DEFAULT_ROUTE       0xde
+#define CPS_NO_ROUTE            0xdf
+
+#define IDTCPS_RIO_DOMAIN 0xf20020
+
+static int
+idtcps_route_add_entry(struct rio_mport *mport, u16 destid, u8 hopcount,
+                       u16 table, u16 route_destid, u8 route_port)
+{
+        u32 result;
+
+        if (table == RIO_GLOBAL_TABLE) {
+                rio_mport_write_config_32(mport, destid, hopcount,
+                                RIO_STD_RTE_CONF_DESTID_SEL_CSR, route_destid);
+
+                rio_mport_read_config_32(mport, destid, hopcount,
+                                RIO_STD_RTE_CONF_PORT_SEL_CSR, &result);
+
+                result = (0xffffff00 & result) | (u32)route_port;
+                rio_mport_write_config_32(mport, destid, hopcount,
+                                RIO_STD_RTE_CONF_PORT_SEL_CSR, result);
+        }
+
+        return 0;
+}
+
+static int
+idtcps_route_get_entry(struct rio_mport *mport, u16 destid, u8 hopcount,
+                       u16 table, u16 route_destid, u8 *route_port)
+{
+        u32 result;
+
+        if (table == RIO_GLOBAL_TABLE) {
+                rio_mport_write_config_32(mport, destid, hopcount,
+                                RIO_STD_RTE_CONF_DESTID_SEL_CSR, route_destid);
+
+                rio_mport_read_config_32(mport, destid, hopcount,
+                                RIO_STD_RTE_CONF_PORT_SEL_CSR, &result);
+
+                if (CPS_DEFAULT_ROUTE == (u8)result ||
+                    CPS_NO_ROUTE == (u8)result)
+                        *route_port = RIO_INVALID_ROUTE;
+                else
+                        *route_port = (u8)result;
+        }
+
+        return 0;
+}
+
+static int
+idtcps_route_clr_table(struct rio_mport *mport, u16 destid, u8 hopcount,
+                       u16 table)
+{
+        u32 i;
+
+        if (table == RIO_GLOBAL_TABLE) {
+                for (i = 0x80000000; i <= 0x800000ff;) {
+                        rio_mport_write_config_32(mport, destid, hopcount,
+                                RIO_STD_RTE_CONF_DESTID_SEL_CSR, i);
+                        rio_mport_write_config_32(mport, destid, hopcount,
+                                RIO_STD_RTE_CONF_PORT_SEL_CSR,
+                                (CPS_DEFAULT_ROUTE << 24) |
+                                (CPS_DEFAULT_ROUTE << 16) |
+                                (CPS_DEFAULT_ROUTE << 8) | CPS_DEFAULT_ROUTE);
+                        i += 4;
+                }
+        }
+
+        return 0;
+}
+
+static int
+idtcps_set_domain(struct rio_mport *mport, u16 destid, u8 hopcount,
+                       u8 sw_domain)
+{
+        /*
+         * Switch domain configuration operates only at global level
+         */
+        rio_mport_write_config_32(mport, destid, hopcount,
+                                  IDTCPS_RIO_DOMAIN, (u32)sw_domain);
+        return 0;
+}
+
+static int
+idtcps_get_domain(struct rio_mport *mport, u16 destid, u8 hopcount,
+                       u8 *sw_domain)
+{
+        u32 regval;
+
+        /*
+         * Switch domain configuration operates only at global level
+         */
+        rio_mport_read_config_32(mport, destid, hopcount,
+                                IDTCPS_RIO_DOMAIN, &regval);
+
+        *sw_domain = (u8)(regval & 0xff);
+
+        return 0;
+}
+
+static int idtcps_switch_init(struct rio_dev *rdev, int do_enum)
+{
+        pr_debug("RIO: %s for %s\n", __func__, rio_name(rdev));
+        rdev->rswitch->add_entry = idtcps_route_add_entry;
+        rdev->rswitch->get_entry = idtcps_route_get_entry;
+        rdev->rswitch->clr_table = idtcps_route_clr_table;
+        rdev->rswitch->set_domain = idtcps_set_domain;
+        rdev->rswitch->get_domain = idtcps_get_domain;
+        rdev->rswitch->em_init = NULL;
+        rdev->rswitch->em_handle = NULL;
+
+        return 0;
+}
+
+DECLARE_RIO_SWITCH_INIT(RIO_VID_IDT, RIO_DID_IDTCPS6Q, idtcps_switch_init);
+DECLARE_RIO_SWITCH_INIT(RIO_VID_IDT, RIO_DID_IDTCPS8, idtcps_switch_init);
+DECLARE_RIO_SWITCH_INIT(RIO_VID_IDT, RIO_DID_IDTCPS10Q, idtcps_switch_init);
+DECLARE_RIO_SWITCH_INIT(RIO_VID_IDT, RIO_DID_IDTCPS12, idtcps_switch_init);
+DECLARE_RIO_SWITCH_INIT(RIO_VID_IDT, RIO_DID_IDTCPS16, idtcps_switch_init);
+DECLARE_RIO_SWITCH_INIT(RIO_VID_IDT, RIO_DID_IDT70K200, idtcps_switch_init);
diff --git a/drivers/rapidio/switches/tsi500.c b/drivers/rapidio/switches/tsi500.c
index c77c23bd9840..914eddd5aa42 100644
--- a/drivers/rapidio/switches/tsi500.c
+++ b/drivers/rapidio/switches/tsi500.c
@@ -1,6 +1,10 @@
 /*
  * RapidIO Tsi500 switch support
  *
+ * Copyright 2009-2010 Integrated Device Technology, Inc.
+ * Alexandre Bounine <alexandre.bounine@idt.com>
+ *  - Modified switch operations initialization.
+ *
  * Copyright 2005 MontaVista Software, Inc.
  * Matt Porter <mporter@kernel.crashing.org>
  *
@@ -57,4 +61,18 @@ tsi500_route_get_entry(struct rio_mport *mport, u16 destid, u8 hopcount, u16 tab
         return ret;
 }
 
-DECLARE_RIO_ROUTE_OPS(RIO_VID_TUNDRA, RIO_DID_TSI500, tsi500_route_add_entry, tsi500_route_get_entry);
+static int tsi500_switch_init(struct rio_dev *rdev, int do_enum)
+{
+        pr_debug("RIO: %s for %s\n", __func__, rio_name(rdev));
+        rdev->rswitch->add_entry = tsi500_route_add_entry;
+        rdev->rswitch->get_entry = tsi500_route_get_entry;
+        rdev->rswitch->clr_table = NULL;
+        rdev->rswitch->set_domain = NULL;
+        rdev->rswitch->get_domain = NULL;
+        rdev->rswitch->em_init = NULL;
+        rdev->rswitch->em_handle = NULL;
+
+        return 0;
+}
+
+DECLARE_RIO_SWITCH_INIT(RIO_VID_TUNDRA, RIO_DID_TSI500, tsi500_switch_init);
diff --git a/drivers/rapidio/switches/tsi568.c b/drivers/rapidio/switches/tsi568.c
new file mode 100644
index 000000000000..f7fd7898606e
--- /dev/null
+++ b/drivers/rapidio/switches/tsi568.c
@@ -0,0 +1,146 @@
+/*
+ * RapidIO Tsi568 switch support
+ *
+ * Copyright 2009-2010 Integrated Device Technology, Inc.
+ * Alexandre Bounine <alexandre.bounine@idt.com>
+ *  - Added EM support
+ *  - Modified switch operations initialization.
+ *
+ * Copyright 2005 MontaVista Software, Inc.
+ * Matt Porter <mporter@kernel.crashing.org>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/rio.h>
+#include <linux/rio_drv.h>
+#include <linux/rio_ids.h>
+#include <linux/delay.h>
+#include "../rio.h"
+
+/* Global (broadcast) route registers */
+#define SPBC_ROUTE_CFG_DESTID   0x10070
+#define SPBC_ROUTE_CFG_PORT     0x10074
+
+/* Per port route registers */
+#define SPP_ROUTE_CFG_DESTID(n) (0x11070 + 0x100*n)
+#define SPP_ROUTE_CFG_PORT(n)   (0x11074 + 0x100*n)
+
+#define TSI568_SP_MODE_BC       0x10004
+#define  TSI568_SP_MODE_PW_DIS  0x08000000
+
+static int
+tsi568_route_add_entry(struct rio_mport *mport, u16 destid, u8 hopcount,
+                       u16 table, u16 route_destid, u8 route_port)
+{
+        if (table == RIO_GLOBAL_TABLE) {
+                rio_mport_write_config_32(mport, destid, hopcount,
+                                        SPBC_ROUTE_CFG_DESTID, route_destid);
+                rio_mport_write_config_32(mport, destid, hopcount,
+                                        SPBC_ROUTE_CFG_PORT, route_port);
+        } else {
+                rio_mport_write_config_32(mport, destid, hopcount,
+                                        SPP_ROUTE_CFG_DESTID(table),
+                                        route_destid);
+                rio_mport_write_config_32(mport, destid, hopcount,
+                                        SPP_ROUTE_CFG_PORT(table), route_port);
+        }
+
+        udelay(10);
+
+        return 0;
+}
+
+static int
+tsi568_route_get_entry(struct rio_mport *mport, u16 destid, u8 hopcount,
+                       u16 table, u16 route_destid, u8 *route_port)
+{
+        int ret = 0;
+        u32 result;
+
+        if (table == RIO_GLOBAL_TABLE) {
+                rio_mport_write_config_32(mport, destid, hopcount,
+                                        SPBC_ROUTE_CFG_DESTID, route_destid);
+                rio_mport_read_config_32(mport, destid, hopcount,
+                                        SPBC_ROUTE_CFG_PORT, &result);
+        } else {
+                rio_mport_write_config_32(mport, destid, hopcount,
+                                        SPP_ROUTE_CFG_DESTID(table),
+                                        route_destid);
+                rio_mport_read_config_32(mport, destid, hopcount,
+                                        SPP_ROUTE_CFG_PORT(table), &result);
+        }
+
+        *route_port = result;
+        if (*route_port > 15)
+                ret = -1;
+
+        return ret;
+}
+
+static int
+tsi568_route_clr_table(struct rio_mport *mport, u16 destid, u8 hopcount,
+                       u16 table)
+{
+        u32 route_idx;
+        u32 lut_size;
+
+        lut_size = (mport->sys_size) ? 0x1ff : 0xff;
+
+        if (table == RIO_GLOBAL_TABLE) {
+                rio_mport_write_config_32(mport, destid, hopcount,
+                                        SPBC_ROUTE_CFG_DESTID, 0x80000000);
+                for (route_idx = 0; route_idx <= lut_size; route_idx++)
+                        rio_mport_write_config_32(mport, destid, hopcount,
+                                                SPBC_ROUTE_CFG_PORT,
+                                                RIO_INVALID_ROUTE);
+        } else {
+                rio_mport_write_config_32(mport, destid, hopcount,
+                                        SPP_ROUTE_CFG_DESTID(table),
+                                        0x80000000);
+                for (route_idx = 0; route_idx <= lut_size; route_idx++)
+                        rio_mport_write_config_32(mport, destid, hopcount,
+                                                SPP_ROUTE_CFG_PORT(table),
+                                                RIO_INVALID_ROUTE);
+        }
+
+        return 0;
+}
+
+static int
+tsi568_em_init(struct rio_dev *rdev)
+{
+        struct rio_mport *mport = rdev->net->hport;
+        u16 destid = rdev->rswitch->destid;
+        u8 hopcount = rdev->rswitch->hopcount;
+        u32 regval;
+
+        pr_debug("TSI568 %s [%d:%d]\n", __func__, destid, hopcount);
+
+        /* Make sure that Port-Writes are disabled (for all ports) */
+        rio_mport_read_config_32(mport, destid, hopcount,
+                        TSI568_SP_MODE_BC, &regval);
+        rio_mport_write_config_32(mport, destid, hopcount,
+                        TSI568_SP_MODE_BC, regval | TSI568_SP_MODE_PW_DIS);
+
+        return 0;
+}
+
+static int tsi568_switch_init(struct rio_dev *rdev, int do_enum)
+{
+        pr_debug("RIO: %s for %s\n", __func__, rio_name(rdev));
+        rdev->rswitch->add_entry = tsi568_route_add_entry;
+        rdev->rswitch->get_entry = tsi568_route_get_entry;
+        rdev->rswitch->clr_table = tsi568_route_clr_table;
+        rdev->rswitch->set_domain = NULL;
+        rdev->rswitch->get_domain = NULL;
+        rdev->rswitch->em_init = tsi568_em_init;
+        rdev->rswitch->em_handle = NULL;
+
+        return 0;
+}
+
+DECLARE_RIO_SWITCH_INIT(RIO_VID_TUNDRA, RIO_DID_TSI568, tsi568_switch_init);
diff --git a/drivers/rapidio/switches/tsi57x.c b/drivers/rapidio/switches/tsi57x.c
new file mode 100644
index 000000000000..d34df722d95f
--- /dev/null
+++ b/drivers/rapidio/switches/tsi57x.c
@@ -0,0 +1,315 @@
+/*
+ * RapidIO Tsi57x switch family support
+ *
+ * Copyright 2009-2010 Integrated Device Technology, Inc.
+ * Alexandre Bounine <alexandre.bounine@idt.com>
+ *  - Added EM support
+ *  - Modified switch operations initialization.
+ *
+ * Copyright 2005 MontaVista Software, Inc.
+ * Matt Porter <mporter@kernel.crashing.org>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/rio.h>
+#include <linux/rio_drv.h>
+#include <linux/rio_ids.h>
+#include <linux/delay.h>
+#include "../rio.h"
+
+/* Global (broadcast) route registers */
+#define SPBC_ROUTE_CFG_DESTID   0x10070
+#define SPBC_ROUTE_CFG_PORT     0x10074
+
+/* Per port route registers */
+#define SPP_ROUTE_CFG_DESTID(n) (0x11070 + 0x100*n)
+#define SPP_ROUTE_CFG_PORT(n)   (0x11074 + 0x100*n)
+
+#define TSI578_SP_MODE(n)       (0x11004 + n*0x100)
+#define TSI578_SP_MODE_GLBL     0x10004
+#define  TSI578_SP_MODE_PW_DIS  0x08000000
+#define  TSI578_SP_MODE_LUT_512 0x01000000
+
+#define TSI578_SP_CTL_INDEP(n)  (0x13004 + n*0x100)
+#define TSI578_SP_LUT_PEINF(n)  (0x13010 + n*0x100)
+#define TSI578_SP_CS_TX(n)      (0x13014 + n*0x100)
+#define TSI578_SP_INT_STATUS(n) (0x13018 + n*0x100)
+
+#define TSI578_GLBL_ROUTE_BASE  0x10078
+
+static int
+tsi57x_route_add_entry(struct rio_mport *mport, u16 destid, u8 hopcount,
+                       u16 table, u16 route_destid, u8 route_port)
+{
+        if (table == RIO_GLOBAL_TABLE) {
+                rio_mport_write_config_32(mport, destid, hopcount,
+                                          SPBC_ROUTE_CFG_DESTID, route_destid);
+                rio_mport_write_config_32(mport, destid, hopcount,
+                                          SPBC_ROUTE_CFG_PORT, route_port);
+        } else {
+                rio_mport_write_config_32(mport, destid, hopcount,
+                                SPP_ROUTE_CFG_DESTID(table), route_destid);
+                rio_mport_write_config_32(mport, destid, hopcount,
+                                SPP_ROUTE_CFG_PORT(table), route_port);
+        }
+
+        udelay(10);
+
+        return 0;
+}
+
+static int
+tsi57x_route_get_entry(struct rio_mport *mport, u16 destid, u8 hopcount,
+                       u16 table, u16 route_destid, u8 *route_port)
+{
+        int ret = 0;
+        u32 result;
+
+        if (table == RIO_GLOBAL_TABLE) {
+                /* Use local RT of the ingress port to avoid possible
+                   race condition */
+                rio_mport_read_config_32(mport, destid, hopcount,
+                        RIO_SWP_INFO_CAR, &result);
+                table = (result & RIO_SWP_INFO_PORT_NUM_MASK);
+        }
+
+        rio_mport_write_config_32(mport, destid, hopcount,
+                                SPP_ROUTE_CFG_DESTID(table), route_destid);
+        rio_mport_read_config_32(mport, destid, hopcount,
+                                SPP_ROUTE_CFG_PORT(table), &result);
+
+        *route_port = (u8)result;
+        if (*route_port > 15)
+                ret = -1;
+
+        return ret;
+}
+
+static int
+tsi57x_route_clr_table(struct rio_mport *mport, u16 destid, u8 hopcount,
+                       u16 table)
+{
+        u32 route_idx;
+        u32 lut_size;
+
+        lut_size = (mport->sys_size) ? 0x1ff : 0xff;
+
+        if (table == RIO_GLOBAL_TABLE) {
+                rio_mport_write_config_32(mport, destid, hopcount,
+                                          SPBC_ROUTE_CFG_DESTID, 0x80000000);
+                for (route_idx = 0; route_idx <= lut_size; route_idx++)
+                        rio_mport_write_config_32(mport, destid, hopcount,
+                                                  SPBC_ROUTE_CFG_PORT,
+                                                  RIO_INVALID_ROUTE);
+        } else {
+                rio_mport_write_config_32(mport, destid, hopcount,
+                                SPP_ROUTE_CFG_DESTID(table), 0x80000000);
+                for (route_idx = 0; route_idx <= lut_size; route_idx++)
+                        rio_mport_write_config_32(mport, destid, hopcount,
+                                SPP_ROUTE_CFG_PORT(table) , RIO_INVALID_ROUTE);
+        }
+
+        return 0;
+}
+
+static int
+tsi57x_set_domain(struct rio_mport *mport, u16 destid, u8 hopcount,
+                       u8 sw_domain)
+{
+        u32 regval;
+
+        /*
+         * Switch domain configuration operates only at global level
+         */
+
+        /* Turn off flat (LUT_512) mode */
+        rio_mport_read_config_32(mport, destid, hopcount,
+                                 TSI578_SP_MODE_GLBL, &regval);
+        rio_mport_write_config_32(mport, destid, hopcount, TSI578_SP_MODE_GLBL,
+                                  regval & ~TSI578_SP_MODE_LUT_512);
+        /* Set switch domain base */
+        rio_mport_write_config_32(mport, destid, hopcount,
+                                  TSI578_GLBL_ROUTE_BASE,
+                                  (u32)(sw_domain << 24));
+        return 0;
+}
+
+static int
+tsi57x_get_domain(struct rio_mport *mport, u16 destid, u8 hopcount,
+                       u8 *sw_domain)
+{
+        u32 regval;
+
+        /*
+         * Switch domain configuration operates only at global level
+         */
+        rio_mport_read_config_32(mport, destid, hopcount,
+                                TSI578_GLBL_ROUTE_BASE, &regval);
+
+        *sw_domain = (u8)(regval >> 24);
+
+        return 0;
+}
+
+static int
+tsi57x_em_init(struct rio_dev *rdev)
+{
+        struct rio_mport *mport = rdev->net->hport;
+        u16 destid = rdev->rswitch->destid;
+        u8 hopcount = rdev->rswitch->hopcount;
+        u32 regval;
+        int portnum;
+
+        pr_debug("TSI578 %s [%d:%d]\n", __func__, destid, hopcount);
+
+        for (portnum = 0; portnum < 16; portnum++) {
+                /* Make sure that Port-Writes are enabled (for all ports) */
+                rio_mport_read_config_32(mport, destid, hopcount,
+                                TSI578_SP_MODE(portnum), &regval);
+                rio_mport_write_config_32(mport, destid, hopcount,
+                                TSI578_SP_MODE(portnum),
+                                regval & ~TSI578_SP_MODE_PW_DIS);
+
+                /* Clear all pending interrupts */
+                rio_mport_read_config_32(mport, destid, hopcount,
+                                rdev->phys_efptr +
+                                        RIO_PORT_N_ERR_STS_CSR(portnum),
+                                &regval);
+                rio_mport_write_config_32(mport, destid, hopcount,
+                                rdev->phys_efptr +
+                                        RIO_PORT_N_ERR_STS_CSR(portnum),
+                                regval & 0x07120214);
+
+                rio_mport_read_config_32(mport, destid, hopcount,
+                                TSI578_SP_INT_STATUS(portnum), &regval);
+                rio_mport_write_config_32(mport, destid, hopcount,
+                                TSI578_SP_INT_STATUS(portnum),
+                                regval & 0x000700bd);
+
+                /* Enable all interrupts to allow ports to send a port-write */
+                rio_mport_read_config_32(mport, destid, hopcount,
+                                TSI578_SP_CTL_INDEP(portnum), &regval);
+                rio_mport_write_config_32(mport, destid, hopcount,
+                                TSI578_SP_CTL_INDEP(portnum),
+                                regval | 0x000b0000);
+
+                /* Skip next (odd) port if the current port is in x4 mode */
+                rio_mport_read_config_32(mport, destid, hopcount,
+                                rdev->phys_efptr + RIO_PORT_N_CTL_CSR(portnum),
+                                &regval);
+                if ((regval & RIO_PORT_N_CTL_PWIDTH) == RIO_PORT_N_CTL_PWIDTH_4)
+                        portnum++;
+        }
+
+        return 0;
+}
+
+static int
+tsi57x_em_handler(struct rio_dev *rdev, u8 portnum)
+{
+        struct rio_mport *mport = rdev->net->hport;
+        u16 destid = rdev->rswitch->destid;
+        u8 hopcount = rdev->rswitch->hopcount;
+        u32 intstat, err_status;
+        int sendcount, checkcount;
+        u8 route_port;
+        u32 regval;
+
+        rio_mport_read_config_32(mport, destid, hopcount,
+                        rdev->phys_efptr + RIO_PORT_N_ERR_STS_CSR(portnum),
+                        &err_status);
+
+        if ((err_status & RIO_PORT_N_ERR_STS_PORT_OK) &&
+            (err_status & (RIO_PORT_N_ERR_STS_PW_OUT_ES |
+                          RIO_PORT_N_ERR_STS_PW_INP_ES))) {
+                /* Remove any queued packets by locking/unlocking port */
+                rio_mport_read_config_32(mport, destid, hopcount,
+                        rdev->phys_efptr + RIO_PORT_N_CTL_CSR(portnum),
+                        &regval);
+                if (!(regval & RIO_PORT_N_CTL_LOCKOUT)) {
+                        rio_mport_write_config_32(mport, destid, hopcount,
+                                rdev->phys_efptr + RIO_PORT_N_CTL_CSR(portnum),
+                                regval | RIO_PORT_N_CTL_LOCKOUT);
+                        udelay(50);
+                        rio_mport_write_config_32(mport, destid, hopcount,
+                                rdev->phys_efptr + RIO_PORT_N_CTL_CSR(portnum),
+                                regval);
+                }
+
+                /* Read from link maintenance response register to clear
+                 * valid bit
+                 */
+                rio_mport_read_config_32(mport, destid, hopcount,
+                        rdev->phys_efptr + RIO_PORT_N_MNT_RSP_CSR(portnum),
+                        &regval);
+
+                /* Send a Packet-Not-Accepted/Link-Request-Input-Status control
+                 * symbol to recover from IES/OES
+                 */
+                sendcount = 3;
+                while (sendcount) {
+                        rio_mport_write_config_32(mport, destid, hopcount,
+                                          TSI578_SP_CS_TX(portnum), 0x40fc8000);
+                        checkcount = 3;
+                        while (checkcount--) {
+                                udelay(50);
+                                rio_mport_read_config_32(
+                                        mport, destid, hopcount,
+                                        rdev->phys_efptr +
+                                                RIO_PORT_N_MNT_RSP_CSR(portnum),
+                                        &regval);
+                                if (regval & RIO_PORT_N_MNT_RSP_RVAL)
+                                        goto exit_es;
+                        }
+
+                        sendcount--;
+                }
+        }
+
+exit_es:
+        /* Clear implementation specific error status bits */
+        rio_mport_read_config_32(mport, destid, hopcount,
+                                 TSI578_SP_INT_STATUS(portnum), &intstat);
+        pr_debug("TSI578[%x:%x] SP%d_INT_STATUS=0x%08x\n",
+                 destid, hopcount, portnum, intstat);
+
+        if (intstat & 0x10000) {
+                rio_mport_read_config_32(mport, destid, hopcount,
+                                TSI578_SP_LUT_PEINF(portnum), &regval);
+                regval = (mport->sys_size) ? (regval >> 16) : (regval >> 24);
+                route_port = rdev->rswitch->route_table[regval];
+                pr_debug("RIO: TSI578[%s] P%d LUT Parity Error (destID=%d)\n",
+                        rio_name(rdev), portnum, regval);
+                tsi57x_route_add_entry(mport, destid, hopcount,
+                                RIO_GLOBAL_TABLE, regval, route_port);
+        }
+
+        rio_mport_write_config_32(mport, destid, hopcount,
+                                  TSI578_SP_INT_STATUS(portnum),
+                                  intstat & 0x000700bd);
+
+        return 0;
+}
+
+static int tsi57x_switch_init(struct rio_dev *rdev, int do_enum)
+{
+        pr_debug("RIO: %s for %s\n", __func__, rio_name(rdev));
+        rdev->rswitch->add_entry = tsi57x_route_add_entry;
+        rdev->rswitch->get_entry = tsi57x_route_get_entry;
+        rdev->rswitch->clr_table = tsi57x_route_clr_table;
+        rdev->rswitch->set_domain = tsi57x_set_domain;
+        rdev->rswitch->get_domain = tsi57x_get_domain;
+        rdev->rswitch->em_init = tsi57x_em_init;
+        rdev->rswitch->em_handle = tsi57x_em_handler;
+
+        return 0;
+}
+
+DECLARE_RIO_SWITCH_INIT(RIO_VID_TUNDRA, RIO_DID_TSI572, tsi57x_switch_init);
+DECLARE_RIO_SWITCH_INIT(RIO_VID_TUNDRA, RIO_DID_TSI574, tsi57x_switch_init);
+DECLARE_RIO_SWITCH_INIT(RIO_VID_TUNDRA, RIO_DID_TSI577, tsi57x_switch_init);
+DECLARE_RIO_SWITCH_INIT(RIO_VID_TUNDRA, RIO_DID_TSI578, tsi57x_switch_init);
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index f1598324344c..10ba12c8c5e0 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -611,6 +611,13 @@ config RTC_DRV_AB3100
           Select this to enable the ST-Ericsson AB3100 Mixed Signal IC RTC
           support. This chip contains a battery- and capacitor-backed RTC.
 
+config RTC_DRV_AB8500
+        tristate "ST-Ericsson AB8500 RTC"
+        depends on AB8500_CORE
+        help
+          Select this to enable the ST-Ericsson AB8500 power management IC RTC
+          support. This chip contains a battery- and capacitor-backed RTC.
+
 config RTC_DRV_NUC900
         tristate "NUC910/NUC920 RTC driver"
         depends on RTC_CLASS && ARCH_W90X900
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index 245311a1348f..5adbba7cf89c 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -18,6 +18,7 @@ rtc-core-$(CONFIG_RTC_INTF_SYSFS) += rtc-sysfs.o
 # Keep the list ordered.
 
 obj-$(CONFIG_RTC_DRV_AB3100)    += rtc-ab3100.o
+obj-$(CONFIG_RTC_DRV_AB8500)    += rtc-ab8500.o
 obj-$(CONFIG_RTC_DRV_AT32AP700X)+= rtc-at32ap700x.o
 obj-$(CONFIG_RTC_DRV_AT91RM9200)+= rtc-at91rm9200.o
 obj-$(CONFIG_RTC_DRV_AT91SAM9)  += rtc-at91sam9.o
diff --git a/drivers/rtc/rtc-ab8500.c b/drivers/rtc/rtc-ab8500.c
new file mode 100644
index 000000000000..2fda03125e55
--- /dev/null
+++ b/drivers/rtc/rtc-ab8500.c
@@ -0,0 +1,363 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2010
+ *
+ * License terms: GNU General Public License (GPL) version 2
+ * Author: Virupax Sadashivpetimath <virupax.sadashivpetimath@stericsson.com>
+ *
+ * RTC clock driver for the RTC part of the AB8500 Power management chip.
+ * Based on RTC clock driver for the AB3100 Analog Baseband Chip by
+ * Linus Walleij <linus.walleij@stericsson.com>
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/rtc.h>
+#include <linux/mfd/ab8500.h>
+#include <linux/delay.h>
+
+#define AB8500_RTC_SOFF_STAT_REG        0x0F00
+#define AB8500_RTC_CC_CONF_REG          0x0F01
+#define AB8500_RTC_READ_REQ_REG         0x0F02
+#define AB8500_RTC_WATCH_TSECMID_REG    0x0F03
+#define AB8500_RTC_WATCH_TSECHI_REG     0x0F04
+#define AB8500_RTC_WATCH_TMIN_LOW_REG   0x0F05
+#define AB8500_RTC_WATCH_TMIN_MID_REG   0x0F06
+#define AB8500_RTC_WATCH_TMIN_HI_REG    0x0F07
+#define AB8500_RTC_ALRM_MIN_LOW_REG     0x0F08
+#define AB8500_RTC_ALRM_MIN_MID_REG     0x0F09
+#define AB8500_RTC_ALRM_MIN_HI_REG      0x0F0A
+#define AB8500_RTC_STAT_REG             0x0F0B
+#define AB8500_RTC_BKUP_CHG_REG         0x0F0C
+#define AB8500_RTC_FORCE_BKUP_REG       0x0F0D
+#define AB8500_RTC_CALIB_REG            0x0F0E
+#define AB8500_RTC_SWITCH_STAT_REG      0x0F0F
+#define AB8500_REV_REG                  0x1080
+
+/* RtcReadRequest bits */
+#define RTC_READ_REQUEST                0x01
+#define RTC_WRITE_REQUEST               0x02
+
+/* RtcCtrl bits */
+#define RTC_ALARM_ENA                   0x04
+#define RTC_STATUS_DATA                 0x01
+
+#define COUNTS_PER_SEC                  (0xF000 / 60)
+#define AB8500_RTC_EPOCH                2000
+
+static const unsigned long ab8500_rtc_time_regs[] = {
+        AB8500_RTC_WATCH_TMIN_HI_REG, AB8500_RTC_WATCH_TMIN_MID_REG,
+        AB8500_RTC_WATCH_TMIN_LOW_REG, AB8500_RTC_WATCH_TSECHI_REG,
+        AB8500_RTC_WATCH_TSECMID_REG
+};
+
+static const unsigned long ab8500_rtc_alarm_regs[] = {
+        AB8500_RTC_ALRM_MIN_HI_REG, AB8500_RTC_ALRM_MIN_MID_REG,
+        AB8500_RTC_ALRM_MIN_LOW_REG
+};
+
+/* Calculate the seconds from 1970 to 01-01-2000 00:00:00 */
+static unsigned long get_elapsed_seconds(int year)
+{
+        unsigned long secs;
+        struct rtc_time tm = {
+                .tm_year = year - 1900,
+                .tm_mday = 1,
+        };
+
+        /*
+         * This function calculates secs from 1970 and not from
+         * 1900, even if we supply the offset from year 1900.
+         */
+        rtc_tm_to_time(&tm, &secs);
+        return secs;
+}
+
+static int ab8500_rtc_read_time(struct device *dev, struct rtc_time *tm)
+{
+        struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
+        unsigned long timeout = jiffies + HZ;
+        int retval, i;
+        unsigned long mins, secs;
+        unsigned char buf[ARRAY_SIZE(ab8500_rtc_time_regs)];
+
+        /* Request a data read */
+        retval = ab8500_write(ab8500, AB8500_RTC_READ_REQ_REG,
+                              RTC_READ_REQUEST);
+        if (retval < 0)
+                return retval;
+
+        /* Early AB8500 chips will not clear the rtc read request bit */
+        if (ab8500->revision == 0) {
+                msleep(1);
+        } else {
+                /* Wait for some cycles after enabling the rtc read in ab8500 */
+                while (time_before(jiffies, timeout)) {
+                        retval = ab8500_read(ab8500, AB8500_RTC_READ_REQ_REG);
+                        if (retval < 0)
+                                return retval;
+
+                        if (!(retval & RTC_READ_REQUEST))
+                                break;
+
+                        msleep(1);
+                }
+        }
+
+        /* Read the Watchtime registers */
+        for (i = 0; i < ARRAY_SIZE(ab8500_rtc_time_regs); i++) {
+                retval = ab8500_read(ab8500, ab8500_rtc_time_regs[i]);
+                if (retval < 0)
+                        return retval;
+                buf[i] = retval;
+        }
+
+        mins = (buf[0] << 16) | (buf[1] << 8) | buf[2];
+
+        secs =  (buf[3] << 8) | buf[4];
+        secs =  secs / COUNTS_PER_SEC;
+        secs =  secs + (mins * 60);
+
+        /* Add back the initially subtracted number of seconds */
+        secs += get_elapsed_seconds(AB8500_RTC_EPOCH);
+
+        rtc_time_to_tm(secs, tm);
+        return rtc_valid_tm(tm);
+}
+
+static int ab8500_rtc_set_time(struct device *dev, struct rtc_time *tm)
+{
+        struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
+        int retval, i;
+        unsigned char buf[ARRAY_SIZE(ab8500_rtc_time_regs)];
+        unsigned long no_secs, no_mins, secs = 0;
+
+        if (tm->tm_year < (AB8500_RTC_EPOCH - 1900)) {
+                dev_dbg(dev, "year should be equal to or greater than %d\n",
+                                AB8500_RTC_EPOCH);
+                return -EINVAL;
+        }
+
+        /* Get the number of seconds since 1970 */
+        rtc_tm_to_time(tm, &secs);
+
+        /*
+         * Convert it to the number of seconds since 01-01-2000 00:00:00, since
+         * we only have a small counter in the RTC.
+         */
+        secs -= get_elapsed_seconds(AB8500_RTC_EPOCH);
+
+        no_mins = secs / 60;
+
+        no_secs = secs % 60;
+        /* Make the seconds count as per the RTC resolution */
+        no_secs = no_secs * COUNTS_PER_SEC;
+
+        buf[4] = no_secs & 0xFF;
+        buf[3] = (no_secs >> 8) & 0xFF;
+
+        buf[2] = no_mins & 0xFF;
+        buf[1] = (no_mins >> 8) & 0xFF;
+        buf[0] = (no_mins >> 16) & 0xFF;
+
+        for (i = 0; i < ARRAY_SIZE(ab8500_rtc_time_regs); i++) {
+                retval = ab8500_write(ab8500, ab8500_rtc_time_regs[i], buf[i]);
+                if (retval < 0)
+                        return retval;
+        }
+
+        /* Request a data write */
+        return ab8500_write(ab8500, AB8500_RTC_READ_REQ_REG, RTC_WRITE_REQUEST);
+}
+
+static int ab8500_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alarm)
+{
+        struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
+        int retval, i;
+        int rtc_ctrl;
+        unsigned char buf[ARRAY_SIZE(ab8500_rtc_alarm_regs)];
+        unsigned long secs, mins;
+
+        /* Check if the alarm is enabled or not */
+        rtc_ctrl = ab8500_read(ab8500, AB8500_RTC_STAT_REG);
+        if (rtc_ctrl < 0)
+                return rtc_ctrl;
+
+        if (rtc_ctrl & RTC_ALARM_ENA)
+                alarm->enabled = 1;
+        else
+                alarm->enabled = 0;
+
+        alarm->pending = 0;
+
+        for (i = 0; i < ARRAY_SIZE(ab8500_rtc_alarm_regs); i++) {
+                retval = ab8500_read(ab8500, ab8500_rtc_alarm_regs[i]);
+                if (retval < 0)
+                        return retval;
+                buf[i] = retval;
+        }
+
+        mins = (buf[0] << 16) | (buf[1] << 8) | (buf[2]);
+        secs = mins * 60;
+
+        /* Add back the initially subtracted number of seconds */
+        secs += get_elapsed_seconds(AB8500_RTC_EPOCH);
+
+        rtc_time_to_tm(secs, &alarm->time);
+
+        return rtc_valid_tm(&alarm->time);
+}
+
+static int ab8500_rtc_irq_enable(struct device *dev, unsigned int enabled)
+{
+        struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
+
+        return ab8500_set_bits(ab8500, AB8500_RTC_STAT_REG, RTC_ALARM_ENA,
+                               enabled ? RTC_ALARM_ENA : 0);
+}
+
+static int ab8500_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alarm)
+{
+        struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
+        int retval, i;
+        unsigned char buf[ARRAY_SIZE(ab8500_rtc_alarm_regs)];
+        unsigned long mins, secs = 0;
+
+        if (alarm->time.tm_year < (AB8500_RTC_EPOCH - 1900)) {
+                dev_dbg(dev, "year should be equal to or greater than %d\n",
+                                AB8500_RTC_EPOCH);
+                return -EINVAL;
+        }
+
+        /* Get the number of seconds since 1970 */
+        rtc_tm_to_time(&alarm->time, &secs);
+
+        /*
+         * Convert it to the number of seconds since 01-01-2000 00:00:00, since
+         * we only have a small counter in the RTC.
+         */
+        secs -= get_elapsed_seconds(AB8500_RTC_EPOCH);
+
+        mins = secs / 60;
+
+        buf[2] = mins & 0xFF;
+        buf[1] = (mins >> 8) & 0xFF;
+        buf[0] = (mins >> 16) & 0xFF;
+
+        /* Set the alarm time */
+        for (i = 0; i < ARRAY_SIZE(ab8500_rtc_alarm_regs); i++) {
+                retval = ab8500_write(ab8500, ab8500_rtc_alarm_regs[i], buf[i]);
+                if (retval < 0)
+                        return retval;
+        }
+
+        return ab8500_rtc_irq_enable(dev, alarm->enabled);
+}
+
+static irqreturn_t rtc_alarm_handler(int irq, void *data)
+{
+        struct rtc_device *rtc = data;
+        unsigned long events = RTC_IRQF | RTC_AF;
+
+        dev_dbg(&rtc->dev, "%s\n", __func__);
+        rtc_update_irq(rtc, 1, events);
+
+        return IRQ_HANDLED;
+}
+
+static const struct rtc_class_ops ab8500_rtc_ops = {
+        .read_time              = ab8500_rtc_read_time,
+        .set_time               = ab8500_rtc_set_time,
+        .read_alarm             = ab8500_rtc_read_alarm,
+        .set_alarm              = ab8500_rtc_set_alarm,
+        .alarm_irq_enable       = ab8500_rtc_irq_enable,
+};
+
+static int __devinit ab8500_rtc_probe(struct platform_device *pdev)
+{
+        struct ab8500 *ab8500 = dev_get_drvdata(pdev->dev.parent);
+        int err;
+        struct rtc_device *rtc;
+        int rtc_ctrl;
+        int irq;
+
+        irq = platform_get_irq_byname(pdev, "ALARM");
+        if (irq < 0)
+                return irq;
+
+        /* For RTC supply test */
+        err = ab8500_set_bits(ab8500, AB8500_RTC_STAT_REG, RTC_STATUS_DATA,
+                        RTC_STATUS_DATA);
+        if (err < 0)
+                return err;
+
+        /* Wait for reset by the PorRtc */
+        msleep(1);
+
+        rtc_ctrl = ab8500_read(ab8500, AB8500_RTC_STAT_REG);
+        if (rtc_ctrl < 0)
+                return rtc_ctrl;
+
+        /* Check if the RTC Supply fails */
+        if (!(rtc_ctrl & RTC_STATUS_DATA)) {
+                dev_err(&pdev->dev, "RTC supply failure\n");
+                return -ENODEV;
+        }
+
+        rtc = rtc_device_register("ab8500-rtc", &pdev->dev, &ab8500_rtc_ops,
+                        THIS_MODULE);
+        if (IS_ERR(rtc)) {
+                dev_err(&pdev->dev, "Registration failed\n");
+                err = PTR_ERR(rtc);
+                return err;
+        }
+
+        err = request_threaded_irq(irq, NULL, rtc_alarm_handler, 0,
+                                   "ab8500-rtc", rtc);
+        if (err < 0) {
+                rtc_device_unregister(rtc);
+                return err;
+        }
+
+        platform_set_drvdata(pdev, rtc);
+
+        return 0;
+}
+
+static int __devexit ab8500_rtc_remove(struct platform_device *pdev)
+{
+        struct rtc_device *rtc = platform_get_drvdata(pdev);
+        int irq = platform_get_irq_byname(pdev, "ALARM");
+
+        free_irq(irq, rtc);
+        rtc_device_unregister(rtc);
+        platform_set_drvdata(pdev, NULL);
+
+        return 0;
+}
+
+static struct platform_driver ab8500_rtc_driver = {
+        .driver = {
+                .name = "ab8500-rtc",
+                .owner = THIS_MODULE,
+        },
+        .probe  = ab8500_rtc_probe,
+        .remove = __devexit_p(ab8500_rtc_remove),
+};
+
+static int __init ab8500_rtc_init(void)
+{
+        return platform_driver_register(&ab8500_rtc_driver);
+}
+
+static void __exit ab8500_rtc_exit(void)
+{
+        platform_driver_unregister(&ab8500_rtc_driver);
+}
+
+module_init(ab8500_rtc_init);
+module_exit(ab8500_rtc_exit);
+MODULE_AUTHOR("Virupax Sadashivpetimath <virupax.sadashivpetimath@stericsson.com>");
+MODULE_DESCRIPTION("AB8500 RTC Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/rtc/rtc-m41t80.c b/drivers/rtc/rtc-m41t80.c
index 038095d99976..6dc4e6241418 100644
--- a/drivers/rtc/rtc-m41t80.c
+++ b/drivers/rtc/rtc-m41t80.c
@@ -595,10 +595,6 @@ static void wdt_disable(void)
 static ssize_t wdt_write(struct file *file, const char __user *buf,
                          size_t count, loff_t *ppos)
 {
-        /*  Can't seek (pwrite) on this device
-        if (ppos != &file->f_pos)
-        return -ESPIPE;
-        */
         if (count) {
                 wdt_ping();
                 return 1;
@@ -707,7 +703,7 @@ static int wdt_open(struct inode *inode, struct file *file)
                  */
                 wdt_is_open = 1;
                 unlock_kernel();
-                return 0;
+                return nonseekable_open(inode, file);
         }
         return -ENODEV;
 }
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 0e86247d791e..33975e922d65 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -1186,6 +1186,29 @@ void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm,
         dasd_schedule_device_bh(device);
 }
 
+enum uc_todo dasd_generic_uc_handler(struct ccw_device *cdev, struct irb *irb)
+{
+        struct dasd_device *device;
+
+        device = dasd_device_from_cdev_locked(cdev);
+
+        if (IS_ERR(device))
+                goto out;
+        if (test_bit(DASD_FLAG_OFFLINE, &device->flags) ||
+           device->state != device->target ||
+           !device->discipline->handle_unsolicited_interrupt){
+                dasd_put_device(device);
+                goto out;
+        }
+
+        dasd_device_clear_timer(device);
+        device->discipline->handle_unsolicited_interrupt(device, irb);
+        dasd_put_device(device);
+out:
+        return UC_TODO_RETRY;
+}
+EXPORT_SYMBOL_GPL(dasd_generic_uc_handler);
+
 /*
  * If we have an error on a dasd_block layer request then we cancel
  * and return all further requests from the same dasd_block as well.
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index 5b1cd8d6e971..ab84da5592e8 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -3436,6 +3436,7 @@ static struct ccw_driver dasd_eckd_driver = {
         .freeze      = dasd_generic_pm_freeze,
         .thaw        = dasd_generic_restore_device,
         .restore     = dasd_generic_restore_device,
+        .uc_handler  = dasd_generic_uc_handler,
 };
 
 /*
diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h
index 32fac186ba3f..49b431d135e0 100644
--- a/drivers/s390/block/dasd_int.h
+++ b/drivers/s390/block/dasd_int.h
@@ -617,6 +617,7 @@ int dasd_generic_notify(struct ccw_device *, int);
 void dasd_generic_handle_state_change(struct dasd_device *);
 int dasd_generic_pm_freeze(struct ccw_device *);
 int dasd_generic_restore_device(struct ccw_device *);
+enum uc_todo dasd_generic_uc_handler(struct ccw_device *, struct irb *);
 
 int dasd_generic_read_dev_chars(struct dasd_device *, int, void *, int);
 char *dasd_get_sense(struct irb *);
diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c
index 5f97ea2ee6b1..97b25d68e3e7 100644
--- a/drivers/s390/cio/ccwgroup.c
+++ b/drivers/s390/cio/ccwgroup.c
@@ -123,8 +123,10 @@ ccwgroup_release (struct device *dev)
 
         for (i = 0; i < gdev->count; i++) {
                 if (gdev->cdev[i]) {
+                        spin_lock_irq(gdev->cdev[i]->ccwlock);
                         if (dev_get_drvdata(&gdev->cdev[i]->dev) == gdev)
                                 dev_set_drvdata(&gdev->cdev[i]->dev, NULL);
+                        spin_unlock_irq(gdev->cdev[i]->ccwlock);
                         put_device(&gdev->cdev[i]->dev);
                 }
         }
@@ -262,11 +264,14 @@ int ccwgroup_create_from_string(struct device *root, unsigned int creator_id,
                         goto error;
                 }
                 /* Don't allow a device to belong to more than one group. */
+                spin_lock_irq(gdev->cdev[i]->ccwlock);
                 if (dev_get_drvdata(&gdev->cdev[i]->dev)) {
+                        spin_unlock_irq(gdev->cdev[i]->ccwlock);
                         rc = -EINVAL;
                         goto error;
                 }
                 dev_set_drvdata(&gdev->cdev[i]->dev, gdev);
+                spin_unlock_irq(gdev->cdev[i]->ccwlock);
         }
         /* Check for sufficient number of bus ids. */
         if (i < num_devices && !curr_buf) {
@@ -303,8 +308,10 @@ int ccwgroup_create_from_string(struct device *root, unsigned int creator_id,
 error:
         for (i = 0; i < num_devices; i++)
                 if (gdev->cdev[i]) {
+                        spin_lock_irq(gdev->cdev[i]->ccwlock);
                         if (dev_get_drvdata(&gdev->cdev[i]->dev) == gdev)
                                 dev_set_drvdata(&gdev->cdev[i]->dev, NULL);
+                        spin_unlock_irq(gdev->cdev[i]->ccwlock);
                         put_device(&gdev->cdev[i]->dev);
                         gdev->cdev[i] = NULL;
                 }
diff --git a/drivers/s390/cio/ccwreq.c b/drivers/s390/cio/ccwreq.c
index 37df42af05ec..7f206ed44fdf 100644
--- a/drivers/s390/cio/ccwreq.c
+++ b/drivers/s390/cio/ccwreq.c
@@ -159,6 +159,7 @@ static enum io_status ccwreq_status(struct ccw_device *cdev, struct irb *lcirb)
 {
         struct irb *irb = &cdev->private->irb;
         struct cmd_scsw *scsw = &irb->scsw.cmd;
+        enum uc_todo todo;
 
         /* Perform BASIC SENSE if needed. */
         if (ccw_device_accumulate_and_sense(cdev, lcirb))
@@ -178,6 +179,20 @@ static enum io_status ccwreq_status(struct ccw_device *cdev, struct irb *lcirb)
                 /* Check for command reject. */
                 if (irb->ecw[0] & SNS0_CMD_REJECT)
                         return IO_REJECTED;
+                /* Ask the driver what to do */
+                if (cdev->drv && cdev->drv->uc_handler) {
+                        todo = cdev->drv->uc_handler(cdev, lcirb);
+                        switch (todo) {
+                        case UC_TODO_RETRY:
+                                return IO_STATUS_ERROR;
+                        case UC_TODO_RETRY_ON_NEW_PATH:
+                                return IO_PATH_ERROR;
+                        case UC_TODO_STOP:
+                                return IO_REJECTED;
+                        default:
+                                return IO_STATUS_ERROR;
+                        }
+                }
                 /* Assume that unexpected SENSE data implies an error. */
                 return IO_STATUS_ERROR;
         }
diff --git a/drivers/s390/cio/ioasm.h b/drivers/s390/cio/ioasm.h
index 759262792633..fac06155773f 100644
--- a/drivers/s390/cio/ioasm.h
+++ b/drivers/s390/cio/ioasm.h
@@ -23,21 +23,6 @@ struct tpi_info {
  * Some S390 specific IO instructions as inline
  */
 
-static inline int stsch(struct subchannel_id schid, struct schib *addr)
-{
-        register struct subchannel_id reg1 asm ("1") = schid;
-        int ccode;
-
-        asm volatile(
-                "       stsch   0(%3)\n"
-                "       ipm     %0\n"
-                "       srl     %0,28"
-                : "=d" (ccode), "=m" (*addr)
-                : "d" (reg1), "a" (addr)
-                : "cc");
-        return ccode;
-}
-
 static inline int stsch_err(struct subchannel_id schid, struct schib *addr)
 {
         register struct subchannel_id reg1 asm ("1") = schid;
diff --git a/drivers/scsi/a2091.c b/drivers/scsi/a2091.c
index 308541ff85cf..1bb5d3f0e260 100644
--- a/drivers/scsi/a2091.c
+++ b/drivers/scsi/a2091.c
@@ -1,34 +1,31 @@
 #include <linux/types.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-#include <linux/blkdev.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/zorro.h>
 
-#include <asm/setup.h>
 #include <asm/page.h>
 #include <asm/pgtable.h>
 #include <asm/amigaints.h>
 #include <asm/amigahw.h>
-#include <linux/zorro.h>
-#include <asm/irq.h>
-#include <linux/spinlock.h>
 
 #include "scsi.h"
-#include <scsi/scsi_host.h>
 #include "wd33c93.h"
 #include "a2091.h"
 
-#include <linux/stat.h>
-
 
-static int a2091_release(struct Scsi_Host *instance);
+struct a2091_hostdata {
+        struct WD33C93_hostdata wh;
+        struct a2091_scsiregs *regs;
+};
 
 static irqreturn_t a2091_intr(int irq, void *data)
 {
         struct Scsi_Host *instance = data;
-        a2091_scsiregs *regs = (a2091_scsiregs *)(instance->base);
-        unsigned int status = regs->ISTR;
+        struct a2091_hostdata *hdata = shost_priv(instance);
+        unsigned int status = hdata->regs->ISTR;
         unsigned long flags;
 
         if (!(status & (ISTR_INT_F | ISTR_INT_P)) || !(status & ISTR_INTS))
@@ -43,38 +40,39 @@ static irqreturn_t a2091_intr(int irq, void *data)
 static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
 {
         struct Scsi_Host *instance = cmd->device->host;
-        struct WD33C93_hostdata *hdata = shost_priv(instance);
-        a2091_scsiregs *regs = (a2091_scsiregs *)(instance->base);
+        struct a2091_hostdata *hdata = shost_priv(instance);
+        struct WD33C93_hostdata *wh = &hdata->wh;
+        struct a2091_scsiregs *regs = hdata->regs;
         unsigned short cntr = CNTR_PDMD | CNTR_INTEN;
         unsigned long addr = virt_to_bus(cmd->SCp.ptr);
 
         /* don't allow DMA if the physical address is bad */
         if (addr & A2091_XFER_MASK) {
-                hdata->dma_bounce_len = (cmd->SCp.this_residual + 511) & ~0x1ff;
-                hdata->dma_bounce_buffer = kmalloc(hdata->dma_bounce_len,
-                                                   GFP_KERNEL);
+                wh->dma_bounce_len = (cmd->SCp.this_residual + 511) & ~0x1ff;
+                wh->dma_bounce_buffer = kmalloc(wh->dma_bounce_len,
+                                                GFP_KERNEL);
 
                 /* can't allocate memory; use PIO */
-                if (!hdata->dma_bounce_buffer) {
-                        hdata->dma_bounce_len = 0;
+                if (!wh->dma_bounce_buffer) {
+                        wh->dma_bounce_len = 0;
                         return 1;
                 }
 
                 /* get the physical address of the bounce buffer */
-                addr = virt_to_bus(hdata->dma_bounce_buffer);
+                addr = virt_to_bus(wh->dma_bounce_buffer);
 
                 /* the bounce buffer may not be in the first 16M of physmem */
                 if (addr & A2091_XFER_MASK) {
                         /* we could use chipmem... maybe later */
-                        kfree(hdata->dma_bounce_buffer);
-                        hdata->dma_bounce_buffer = NULL;
-                        hdata->dma_bounce_len = 0;
+                        kfree(wh->dma_bounce_buffer);
+                        wh->dma_bounce_buffer = NULL;
+                        wh->dma_bounce_len = 0;
                         return 1;
                 }
 
                 if (!dir_in) {
                         /* copy to bounce buffer for a write */
-                        memcpy(hdata->dma_bounce_buffer, cmd->SCp.ptr,
+                        memcpy(wh->dma_bounce_buffer, cmd->SCp.ptr,
                                cmd->SCp.this_residual);
                 }
         }
@@ -84,7 +82,7 @@ static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
                 cntr |= CNTR_DDIR;
 
         /* remember direction */
-        hdata->dma_dir = dir_in;
+        wh->dma_dir = dir_in;
 
         regs->CNTR = cntr;
 
@@ -108,20 +106,21 @@ static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
 static void dma_stop(struct Scsi_Host *instance, struct scsi_cmnd *SCpnt,
                      int status)
 {
-        struct WD33C93_hostdata *hdata = shost_priv(instance);
-        a2091_scsiregs *regs = (a2091_scsiregs *)(instance->base);
+        struct a2091_hostdata *hdata = shost_priv(instance);
+        struct WD33C93_hostdata *wh = &hdata->wh;
+        struct a2091_scsiregs *regs = hdata->regs;
 
         /* disable SCSI interrupts */
         unsigned short cntr = CNTR_PDMD;
 
-        if (!hdata->dma_dir)
+        if (!wh->dma_dir)
                 cntr |= CNTR_DDIR;
 
         /* disable SCSI interrupts */
         regs->CNTR = cntr;
 
         /* flush if we were reading */
-        if (hdata->dma_dir) {
+        if (wh->dma_dir) {
                 regs->FLUSH = 1;
                 while (!(regs->ISTR & ISTR_FE_FLG))
                         ;
@@ -137,95 +136,37 @@ static void dma_stop(struct Scsi_Host *instance, struct scsi_cmnd *SCpnt,
         regs->CNTR = CNTR_PDMD | CNTR_INTEN;
 
         /* copy from a bounce buffer, if necessary */
-        if (status && hdata->dma_bounce_buffer) {
-                if (hdata->dma_dir)
-                        memcpy(SCpnt->SCp.ptr, hdata->dma_bounce_buffer,
+        if (status && wh->dma_bounce_buffer) {
+                if (wh->dma_dir)
+                        memcpy(SCpnt->SCp.ptr, wh->dma_bounce_buffer,
                                SCpnt->SCp.this_residual);
-                kfree(hdata->dma_bounce_buffer);
-                hdata->dma_bounce_buffer = NULL;
-                hdata->dma_bounce_len = 0;
-        }
-}
-
-static int __init a2091_detect(struct scsi_host_template *tpnt)
-{
-        static unsigned char called = 0;
-        struct Scsi_Host *instance;
-        unsigned long address;
-        struct zorro_dev *z = NULL;
-        wd33c93_regs wdregs;
-        a2091_scsiregs *regs;
-        struct WD33C93_hostdata *hdata;
-        int num_a2091 = 0;
-
-        if (!MACH_IS_AMIGA || called)
-                return 0;
-        called = 1;
-
-        tpnt->proc_name = "A2091";
-        tpnt->proc_info = &wd33c93_proc_info;
-
-        while ((z = zorro_find_device(ZORRO_WILDCARD, z))) {
-                if (z->id != ZORRO_PROD_CBM_A590_A2091_1 &&
-                    z->id != ZORRO_PROD_CBM_A590_A2091_2)
-                        continue;
-                address = z->resource.start;
-                if (!request_mem_region(address, 256, "wd33c93"))
-                        continue;
-
-                instance = scsi_register(tpnt, sizeof(struct WD33C93_hostdata));
-                if (instance == NULL)
-                        goto release;
-                instance->base = ZTWO_VADDR(address);
-                instance->irq = IRQ_AMIGA_PORTS;
-                instance->unique_id = z->slotaddr;
-                regs = (a2091_scsiregs *)(instance->base);
-                regs->DAWR = DAWR_A2091;
-                wdregs.SASR = &regs->SASR;
-                wdregs.SCMD = &regs->SCMD;
-                hdata = shost_priv(instance);
-                hdata->no_sync = 0xff;
-                hdata->fast = 0;
-                hdata->dma_mode = CTRL_DMA;
-                wd33c93_init(instance, wdregs, dma_setup, dma_stop,
-                             WD33C93_FS_8_10);
-                if (request_irq(IRQ_AMIGA_PORTS, a2091_intr, IRQF_SHARED,
-                                "A2091 SCSI", instance))
-                        goto unregister;
-                regs->CNTR = CNTR_PDMD | CNTR_INTEN;
-                num_a2091++;
-                continue;
-
-unregister:
-                scsi_unregister(instance);
-release:
-                release_mem_region(address, 256);
+                kfree(wh->dma_bounce_buffer);
+                wh->dma_bounce_buffer = NULL;
+                wh->dma_bounce_len = 0;
         }
-
-        return num_a2091;
 }
 
 static int a2091_bus_reset(struct scsi_cmnd *cmd)
 {
+        struct Scsi_Host *instance = cmd->device->host;
+
         /* FIXME perform bus-specific reset */
 
         /* FIXME 2: kill this function, and let midlayer fall back
            to the same action, calling wd33c93_host_reset() */
 
-        spin_lock_irq(cmd->device->host->host_lock);
+        spin_lock_irq(instance->host_lock);
         wd33c93_host_reset(cmd);
-        spin_unlock_irq(cmd->device->host->host_lock);
+        spin_unlock_irq(instance->host_lock);
 
         return SUCCESS;
 }
 
-#define HOSTS_C
-
-static struct scsi_host_template driver_template = {
-        .proc_name              = "A2901",
+static struct scsi_host_template a2091_scsi_template = {
+        .module                 = THIS_MODULE,
         .name                   = "Commodore A2091/A590 SCSI",
-        .detect                 = a2091_detect,
-        .release                = a2091_release,
+        .proc_info              = wd33c93_proc_info,
+        .proc_name              = "A2901",
         .queuecommand           = wd33c93_queuecommand,
         .eh_abort_handler       = wd33c93_abort,
         .eh_bus_reset_handler   = a2091_bus_reset,
@@ -237,19 +178,103 @@ static struct scsi_host_template driver_template = {
         .use_clustering         = DISABLE_CLUSTERING
 };
 
+static int __devinit a2091_probe(struct zorro_dev *z,
+                                 const struct zorro_device_id *ent)
+{
+        struct Scsi_Host *instance;
+        int error;
+        struct a2091_scsiregs *regs;
+        wd33c93_regs wdregs;
+        struct a2091_hostdata *hdata;
 
-#include "scsi_module.c"
+        if (!request_mem_region(z->resource.start, 256, "wd33c93"))
+                return -EBUSY;
 
-static int a2091_release(struct Scsi_Host *instance)
+        instance = scsi_host_alloc(&a2091_scsi_template,
+                                   sizeof(struct a2091_hostdata));
+        if (!instance) {
+                error = -ENOMEM;
+                goto fail_alloc;
+        }
+
+        instance->irq = IRQ_AMIGA_PORTS;
+        instance->unique_id = z->slotaddr;
+
+        regs = (struct a2091_scsiregs *)ZTWO_VADDR(z->resource.start);
+        regs->DAWR = DAWR_A2091;
+
+        wdregs.SASR = &regs->SASR;
+        wdregs.SCMD = &regs->SCMD;
+
+        hdata = shost_priv(instance);
+        hdata->wh.no_sync = 0xff;
+        hdata->wh.fast = 0;
+        hdata->wh.dma_mode = CTRL_DMA;
+        hdata->regs = regs;
+
+        wd33c93_init(instance, wdregs, dma_setup, dma_stop, WD33C93_FS_8_10);
+        error = request_irq(IRQ_AMIGA_PORTS, a2091_intr, IRQF_SHARED,
+                            "A2091 SCSI", instance);
+        if (error)
+                goto fail_irq;
+
+        regs->CNTR = CNTR_PDMD | CNTR_INTEN;
+
+        error = scsi_add_host(instance, NULL);
+        if (error)
+                goto fail_host;
+
+        zorro_set_drvdata(z, instance);
+
+        scsi_scan_host(instance);
+        return 0;
+
+fail_host:
+        free_irq(IRQ_AMIGA_PORTS, instance);
+fail_irq:
+        scsi_host_put(instance);
+fail_alloc:
+        release_mem_region(z->resource.start, 256);
+        return error;
+}
+
+static void __devexit a2091_remove(struct zorro_dev *z)
 {
-#ifdef MODULE
-        a2091_scsiregs *regs = (a2091_scsiregs *)(instance->base);
+        struct Scsi_Host *instance = zorro_get_drvdata(z);
+        struct a2091_hostdata *hdata = shost_priv(instance);
 
-        regs->CNTR = 0;
-        release_mem_region(ZTWO_PADDR(instance->base), 256);
+        hdata->regs->CNTR = 0;
+        scsi_remove_host(instance);
         free_irq(IRQ_AMIGA_PORTS, instance);
-#endif
-        return 1;
+        scsi_host_put(instance);
+        release_mem_region(z->resource.start, 256);
+}
+
+static struct zorro_device_id a2091_zorro_tbl[] __devinitdata = {
+        { ZORRO_PROD_CBM_A590_A2091_1 },
+        { ZORRO_PROD_CBM_A590_A2091_2 },
+        { 0 }
+};
+MODULE_DEVICE_TABLE(zorro, a2091_zorro_tbl);
+
+static struct zorro_driver a2091_driver = {
+        .name           = "a2091",
+        .id_table       = a2091_zorro_tbl,
+        .probe          = a2091_probe,
+        .remove         = __devexit_p(a2091_remove),
+};
+
+static int __init a2091_init(void)
+{
+        return zorro_register_driver(&a2091_driver);
+}
+module_init(a2091_init);
+
+static void __exit a2091_exit(void)
+{
+        zorro_unregister_driver(&a2091_driver);
 }
+module_exit(a2091_exit);
 
+MODULE_DESCRIPTION("Commodore A2091/A590 SCSI");
 MODULE_LICENSE("GPL");
diff --git a/drivers/scsi/a2091.h b/drivers/scsi/a2091.h
index 1c3daa1fd754..794b8e65c711 100644
--- a/drivers/scsi/a2091.h
+++ b/drivers/scsi/a2091.h
@@ -25,7 +25,7 @@
  */
 #define A2091_XFER_MASK         (0xff000001)
 
-typedef struct {
+struct a2091_scsiregs {
                  unsigned char  pad1[64];
         volatile unsigned short ISTR;
         volatile unsigned short CNTR;
@@ -44,7 +44,7 @@ typedef struct {
         volatile unsigned short CINT;
                  unsigned char  pad7[2];
         volatile unsigned short FLUSH;
-} a2091_scsiregs;
+};
 
 #define DAWR_A2091              (3)
 
diff --git a/drivers/scsi/a3000.c b/drivers/scsi/a3000.c
index bc6eb69f5fd0..d9468027fb61 100644
--- a/drivers/scsi/a3000.c
+++ b/drivers/scsi/a3000.c
@@ -1,53 +1,52 @@
 #include <linux/types.h>
 #include <linux/mm.h>
-#include <linux/slab.h>
-#include <linux/blkdev.h>
 #include <linux/ioport.h>
 #include <linux/init.h>
+#include <linux/slab.h>
 #include <linux/spinlock.h>
 #include <linux/interrupt.h>
+#include <linux/platform_device.h>
 
-#include <asm/setup.h>
 #include <asm/page.h>
 #include <asm/pgtable.h>
 #include <asm/amigaints.h>
 #include <asm/amigahw.h>
-#include <asm/irq.h>
 
 #include "scsi.h"
-#include <scsi/scsi_host.h>
 #include "wd33c93.h"
 #include "a3000.h"
 
-#include <linux/stat.h>
-
 
-#define DMA(ptr)        ((a3000_scsiregs *)((ptr)->base))
-
-static struct Scsi_Host *a3000_host = NULL;
-
-static int a3000_release(struct Scsi_Host *instance);
+struct a3000_hostdata {
+        struct WD33C93_hostdata wh;
+        struct a3000_scsiregs *regs;
+};
 
-static irqreturn_t a3000_intr(int irq, void *dummy)
+static irqreturn_t a3000_intr(int irq, void *data)
 {
+        struct Scsi_Host *instance = data;
+        struct a3000_hostdata *hdata = shost_priv(instance);
+        unsigned int status = hdata->regs->ISTR;
         unsigned long flags;
-        unsigned int status = DMA(a3000_host)->ISTR;
 
         if (!(status & ISTR_INT_P))
                 return IRQ_NONE;
         if (status & ISTR_INTS) {
-                spin_lock_irqsave(a3000_host->host_lock, flags);
-                wd33c93_intr(a3000_host);
-                spin_unlock_irqrestore(a3000_host->host_lock, flags);
+                spin_lock_irqsave(instance->host_lock, flags);
+                wd33c93_intr(instance);
+                spin_unlock_irqrestore(instance->host_lock, flags);
                 return IRQ_HANDLED;
         }
-        printk("Non-serviced A3000 SCSI-interrupt? ISTR = %02x\n", status);
+        pr_warning("Non-serviced A3000 SCSI-interrupt? ISTR = %02x\n", status);
         return IRQ_NONE;
 }
 
 static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
 {
-        struct WD33C93_hostdata *hdata = shost_priv(a3000_host);
+        struct Scsi_Host *instance = cmd->device->host;
+        struct a3000_hostdata *hdata = shost_priv(instance);
+        struct WD33C93_hostdata *wh = &hdata->wh;
+        struct a3000_scsiregs *regs = hdata->regs;
         unsigned short cntr = CNTR_PDMD | CNTR_INTEN;
         unsigned long addr = virt_to_bus(cmd->SCp.ptr);
 
@@ -58,23 +57,23 @@ static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
          * buffer
          */
         if (addr & A3000_XFER_MASK) {
-                hdata->dma_bounce_len = (cmd->SCp.this_residual + 511) & ~0x1ff;
-                hdata->dma_bounce_buffer = kmalloc(hdata->dma_bounce_len,
-                                                   GFP_KERNEL);
+                wh->dma_bounce_len = (cmd->SCp.this_residual + 511) & ~0x1ff;
+                wh->dma_bounce_buffer = kmalloc(wh->dma_bounce_len,
+                                                GFP_KERNEL);
 
                 /* can't allocate memory; use PIO */
-                if (!hdata->dma_bounce_buffer) {
-                        hdata->dma_bounce_len = 0;
+                if (!wh->dma_bounce_buffer) {
+                        wh->dma_bounce_len = 0;
                         return 1;
                 }
 
                 if (!dir_in) {
                         /* copy to bounce buffer for a write */
-                        memcpy(hdata->dma_bounce_buffer, cmd->SCp.ptr,
+                        memcpy(wh->dma_bounce_buffer, cmd->SCp.ptr,
                                cmd->SCp.this_residual);
                 }
 
-                addr = virt_to_bus(hdata->dma_bounce_buffer);
+                addr = virt_to_bus(wh->dma_bounce_buffer);
         }
 
         /* setup dma direction */
@@ -82,12 +81,12 @@ static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
                 cntr |= CNTR_DDIR;
 
         /* remember direction */
-        hdata->dma_dir = dir_in;
+        wh->dma_dir = dir_in;
 
-        DMA(a3000_host)->CNTR = cntr;
+        regs->CNTR = cntr;
 
         /* setup DMA *physical* address */
-        DMA(a3000_host)->ACR = addr;
+        regs->ACR = addr;
 
         if (dir_in) {
                 /* invalidate any cache */
@@ -99,7 +98,7 @@ static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
 
         /* start DMA */
         mb();                   /* make sure setup is completed */
-        DMA(a3000_host)->ST_DMA = 1;
+        regs->ST_DMA = 1;
         mb();                   /* make sure DMA has started before next IO */
 
         /* return success */
@@ -109,22 +108,24 @@ static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
 static void dma_stop(struct Scsi_Host *instance, struct scsi_cmnd *SCpnt,
                      int status)
 {
-        struct WD33C93_hostdata *hdata = shost_priv(instance);
+        struct a3000_hostdata *hdata = shost_priv(instance);
+        struct WD33C93_hostdata *wh = &hdata->wh;
+        struct a3000_scsiregs *regs = hdata->regs;
 
         /* disable SCSI interrupts */
         unsigned short cntr = CNTR_PDMD;
 
-        if (!hdata->dma_dir)
+        if (!wh->dma_dir)
                 cntr |= CNTR_DDIR;
 
-        DMA(instance)->CNTR = cntr;
+        regs->CNTR = cntr;
         mb();                   /* make sure CNTR is updated before next IO */
 
         /* flush if we were reading */
-        if (hdata->dma_dir) {
-                DMA(instance)->FLUSH = 1;
+        if (wh->dma_dir) {
+                regs->FLUSH = 1;
                 mb();           /* don't allow prefetch */
-                while (!(DMA(instance)->ISTR & ISTR_FE_FLG))
+                while (!(regs->ISTR & ISTR_FE_FLG))
                         barrier();
                 mb();           /* no IO until FLUSH is done */
         }
@@ -133,96 +134,54 @@ static void dma_stop(struct Scsi_Host *instance, struct scsi_cmnd *SCpnt,
         /* I think that this CINT is only necessary if you are
          * using the terminal count features.   HM 7 Mar 1994
          */
-        DMA(instance)->CINT = 1;
+        regs->CINT = 1;
 
         /* stop DMA */
-        DMA(instance)->SP_DMA = 1;
+        regs->SP_DMA = 1;
         mb();                   /* make sure DMA is stopped before next IO */
 
         /* restore the CONTROL bits (minus the direction flag) */
-        DMA(instance)->CNTR = CNTR_PDMD | CNTR_INTEN;
+        regs->CNTR = CNTR_PDMD | CNTR_INTEN;
         mb();                   /* make sure CNTR is updated before next IO */
 
         /* copy from a bounce buffer, if necessary */
-        if (status && hdata->dma_bounce_buffer) {
+        if (status && wh->dma_bounce_buffer) {
                 if (SCpnt) {
-                        if (hdata->dma_dir && SCpnt)
-                                memcpy(SCpnt->SCp.ptr,
-                                       hdata->dma_bounce_buffer,
+                        if (wh->dma_dir && SCpnt)
+                                memcpy(SCpnt->SCp.ptr, wh->dma_bounce_buffer,
                                        SCpnt->SCp.this_residual);
-                        kfree(hdata->dma_bounce_buffer);
-                        hdata->dma_bounce_buffer = NULL;
-                        hdata->dma_bounce_len = 0;
+                        kfree(wh->dma_bounce_buffer);
+                        wh->dma_bounce_buffer = NULL;
+                        wh->dma_bounce_len = 0;
                 } else {
-                        kfree(hdata->dma_bounce_buffer);
-                        hdata->dma_bounce_buffer = NULL;
-                        hdata->dma_bounce_len = 0;
+                        kfree(wh->dma_bounce_buffer);
+                        wh->dma_bounce_buffer = NULL;
+                        wh->dma_bounce_len = 0;
                 }
         }
 }
 
-static int __init a3000_detect(struct scsi_host_template *tpnt)
-{
-        wd33c93_regs regs;
-        struct WD33C93_hostdata *hdata;
-
-        if (!MACH_IS_AMIGA || !AMIGAHW_PRESENT(A3000_SCSI))
-                return 0;
-        if (!request_mem_region(0xDD0000, 256, "wd33c93"))
-                return 0;
-
-        tpnt->proc_name = "A3000";
-        tpnt->proc_info = &wd33c93_proc_info;
-
-        a3000_host = scsi_register(tpnt, sizeof(struct WD33C93_hostdata));
-        if (a3000_host == NULL)
-                goto fail_register;
-
-        a3000_host->base = ZTWO_VADDR(0xDD0000);
-        a3000_host->irq = IRQ_AMIGA_PORTS;
-        DMA(a3000_host)->DAWR = DAWR_A3000;
-        regs.SASR = &(DMA(a3000_host)->SASR);
-        regs.SCMD = &(DMA(a3000_host)->SCMD);
-        hdata = shost_priv(a3000_host);
-        hdata->no_sync = 0xff;
-        hdata->fast = 0;
-        hdata->dma_mode = CTRL_DMA;
-        wd33c93_init(a3000_host, regs, dma_setup, dma_stop, WD33C93_FS_12_15);
-        if (request_irq(IRQ_AMIGA_PORTS, a3000_intr, IRQF_SHARED, "A3000 SCSI",
-                        a3000_intr))
-                goto fail_irq;
-        DMA(a3000_host)->CNTR = CNTR_PDMD | CNTR_INTEN;
-
-        return 1;
-
-fail_irq:
-        scsi_unregister(a3000_host);
-fail_register:
-        release_mem_region(0xDD0000, 256);
-        return 0;
-}
-
 static int a3000_bus_reset(struct scsi_cmnd *cmd)
 {
+        struct Scsi_Host *instance = cmd->device->host;
+
         /* FIXME perform bus-specific reset */
 
         /* FIXME 2: kill this entire function, which should
            cause mid-layer to call wd33c93_host_reset anyway? */
 
-        spin_lock_irq(cmd->device->host->host_lock);
+        spin_lock_irq(instance->host_lock);
         wd33c93_host_reset(cmd);
-        spin_unlock_irq(cmd->device->host->host_lock);
+        spin_unlock_irq(instance->host_lock);
 
         return SUCCESS;
 }
 
-#define HOSTS_C
-
-static struct scsi_host_template driver_template = {
-        .proc_name              = "A3000",
+static struct scsi_host_template amiga_a3000_scsi_template = {
+        .module                 = THIS_MODULE,
         .name                   = "Amiga 3000 built-in SCSI",
-        .detect                 = a3000_detect,
-        .release                = a3000_release,
+        .proc_info              = wd33c93_proc_info,
+        .proc_name              = "A3000",
         .queuecommand           = wd33c93_queuecommand,
         .eh_abort_handler       = wd33c93_abort,
         .eh_bus_reset_handler   = a3000_bus_reset,
@@ -234,15 +193,104 @@ static struct scsi_host_template driver_template = {
         .use_clustering         = ENABLE_CLUSTERING
 };
 
+static int __init amiga_a3000_scsi_probe(struct platform_device *pdev)
+{
+        struct resource *res;
+        struct Scsi_Host *instance;
+        int error;
+        struct a3000_scsiregs *regs;
+        wd33c93_regs wdregs;
+        struct a3000_hostdata *hdata;
+
+        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+        if (!res)
+                return -ENODEV;
+
+        if (!request_mem_region(res->start, resource_size(res), "wd33c93"))
+                return -EBUSY;
+
+        instance = scsi_host_alloc(&amiga_a3000_scsi_template,
+                                   sizeof(struct a3000_hostdata));
+        if (!instance) {
+                error = -ENOMEM;
+                goto fail_alloc;
+        }
+
+        instance->irq = IRQ_AMIGA_PORTS;
 
-#include "scsi_module.c"
+        regs = (struct a3000_scsiregs *)ZTWO_VADDR(res->start);
+        regs->DAWR = DAWR_A3000;
+
+        wdregs.SASR = &regs->SASR;
+        wdregs.SCMD = &regs->SCMD;
+
+        hdata = shost_priv(instance);
+        hdata->wh.no_sync = 0xff;
+        hdata->wh.fast = 0;
+        hdata->wh.dma_mode = CTRL_DMA;
+        hdata->regs = regs;
+
+        wd33c93_init(instance, wdregs, dma_setup, dma_stop, WD33C93_FS_12_15);
+        error = request_irq(IRQ_AMIGA_PORTS, a3000_intr, IRQF_SHARED,
+                            "A3000 SCSI", instance);
+        if (error)
+                goto fail_irq;
+
+        regs->CNTR = CNTR_PDMD | CNTR_INTEN;
+
+        error = scsi_add_host(instance, NULL);
+        if (error)
+                goto fail_host;
+
+        platform_set_drvdata(pdev, instance);
+
+        scsi_scan_host(instance);
+        return 0;
+
+fail_host:
+        free_irq(IRQ_AMIGA_PORTS, instance);
+fail_irq:
+        scsi_host_put(instance);
+fail_alloc:
+        release_mem_region(res->start, resource_size(res));
+        return error;
+}
+
+static int __exit amiga_a3000_scsi_remove(struct platform_device *pdev)
+{
+        struct Scsi_Host *instance = platform_get_drvdata(pdev);
+        struct a3000_hostdata *hdata = shost_priv(instance);
+        struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+        hdata->regs->CNTR = 0;
+        scsi_remove_host(instance);
+        free_irq(IRQ_AMIGA_PORTS, instance);
+        scsi_host_put(instance);
+        release_mem_region(res->start, resource_size(res));
+        return 0;
+}
+
+static struct platform_driver amiga_a3000_scsi_driver = {
+        .remove = __exit_p(amiga_a3000_scsi_remove),
+        .driver   = {
+                .name   = "amiga-a3000-scsi",
+                .owner  = THIS_MODULE,
+        },
+};
+
+static int __init amiga_a3000_scsi_init(void)
+{
+        return platform_driver_probe(&amiga_a3000_scsi_driver,
+                                     amiga_a3000_scsi_probe);
+}
+module_init(amiga_a3000_scsi_init);
 
-static int a3000_release(struct Scsi_Host *instance)
+static void __exit amiga_a3000_scsi_exit(void)
 {
-        DMA(instance)->CNTR = 0;
-        release_mem_region(0xDD0000, 256);
-        free_irq(IRQ_AMIGA_PORTS, a3000_intr);
-        return 1;
+        platform_driver_unregister(&amiga_a3000_scsi_driver);
 }
+module_exit(amiga_a3000_scsi_exit);
 
+MODULE_DESCRIPTION("Amiga 3000 built-in SCSI");
 MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:amiga-a3000-scsi");
diff --git a/drivers/scsi/a3000.h b/drivers/scsi/a3000.h
index 684813ee378c..49db4a335aab 100644
--- a/drivers/scsi/a3000.h
+++ b/drivers/scsi/a3000.h
@@ -25,7 +25,7 @@
  */
 #define A3000_XFER_MASK         (0x00000003)
 
-typedef struct {
+struct a3000_scsiregs {
                  unsigned char  pad1[2];
         volatile unsigned short DAWR;
         volatile unsigned int   WTC;
@@ -46,7 +46,7 @@ typedef struct {
         volatile unsigned char  SASR;
                  unsigned char  pad9;
         volatile unsigned char  SCMD;
-} a3000_scsiregs;
+};
 
 #define DAWR_A3000              (3)
 
diff --git a/drivers/scsi/a4000t.c b/drivers/scsi/a4000t.c
index 11ae6be8aeaf..23c76f41883c 100644
--- a/drivers/scsi/a4000t.c
+++ b/drivers/scsi/a4000t.c
@@ -20,10 +20,6 @@
 
 #include "53c700.h"
 
-MODULE_AUTHOR("Alan Hourihane <alanh@fairlite.demon.co.uk> / Kars de Jong <jongk@linux-m68k.org>");
-MODULE_DESCRIPTION("Amiga A4000T NCR53C710 driver");
-MODULE_LICENSE("GPL");
-
 
 static struct scsi_host_template a4000t_scsi_driver_template = {
         .name           = "A4000T builtin SCSI",
@@ -32,30 +28,35 @@ static struct scsi_host_template a4000t_scsi_driver_template = {
         .module         = THIS_MODULE,
 };
 
-static struct platform_device *a4000t_scsi_device;
 
-#define A4000T_SCSI_ADDR 0xdd0040
+#define A4000T_SCSI_OFFSET      0x40
 
-static int __devinit a4000t_probe(struct platform_device *dev)
+static int __init amiga_a4000t_scsi_probe(struct platform_device *pdev)
 {
-        struct Scsi_Host *host;
+        struct resource *res;
+        phys_addr_t scsi_addr;
         struct NCR_700_Host_Parameters *hostdata;
+        struct Scsi_Host *host;
 
-        if (!(MACH_IS_AMIGA && AMIGAHW_PRESENT(A4000_SCSI)))
-                goto out;
+        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+        if (!res)
+                return -ENODEV;
 
-        if (!request_mem_region(A4000T_SCSI_ADDR, 0x1000,
+        if (!request_mem_region(res->start, resource_size(res),
                                 "A4000T builtin SCSI"))
-                goto out;
+                return -EBUSY;
 
-        hostdata = kzalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL);
+        hostdata = kzalloc(sizeof(struct NCR_700_Host_Parameters),
+                           GFP_KERNEL);
         if (!hostdata) {
-                printk(KERN_ERR "a4000t-scsi: Failed to allocate host data\n");
+                dev_err(&pdev->dev, "Failed to allocate host data\n");
                 goto out_release;
         }
 
+        scsi_addr = res->start + A4000T_SCSI_OFFSET;
+
         /* Fill in the required pieces of hostdata */
-        hostdata->base = (void __iomem *)ZTWO_VADDR(A4000T_SCSI_ADDR);
+        hostdata->base = (void __iomem *)ZTWO_VADDR(scsi_addr);
         hostdata->clock = 50;
         hostdata->chip710 = 1;
         hostdata->dmode_extra = DMODE_FC2;
@@ -63,26 +64,25 @@ static int __devinit a4000t_probe(struct platform_device *dev)
 
         /* and register the chip */
         host = NCR_700_detect(&a4000t_scsi_driver_template, hostdata,
-                              &dev->dev);
+                              &pdev->dev);
         if (!host) {
-                printk(KERN_ERR "a4000t-scsi: No host detected; "
-                                "board configuration problem?\n");
+                dev_err(&pdev->dev,
+                        "No host detected; board configuration problem?\n");
                 goto out_free;
         }
 
         host->this_id = 7;
-        host->base = A4000T_SCSI_ADDR;
+        host->base = scsi_addr;
         host->irq = IRQ_AMIGA_PORTS;
 
         if (request_irq(host->irq, NCR_700_intr, IRQF_SHARED, "a4000t-scsi",
                         host)) {
-                printk(KERN_ERR "a4000t-scsi: request_irq failed\n");
+                dev_err(&pdev->dev, "request_irq failed\n");
                 goto out_put_host;
         }
 
-        platform_set_drvdata(dev, host);
+        platform_set_drvdata(pdev, host);
         scsi_scan_host(host);
-
         return 0;
 
  out_put_host:
@@ -90,58 +90,49 @@ static int __devinit a4000t_probe(struct platform_device *dev)
  out_free:
         kfree(hostdata);
  out_release:
-        release_mem_region(A4000T_SCSI_ADDR, 0x1000);
- out:
+        release_mem_region(res->start, resource_size(res));
         return -ENODEV;
 }
 
-static __devexit int a4000t_device_remove(struct platform_device *dev)
+static int __exit amiga_a4000t_scsi_remove(struct platform_device *pdev)
 {
-        struct Scsi_Host *host = platform_get_drvdata(dev);
+        struct Scsi_Host *host = platform_get_drvdata(pdev);
         struct NCR_700_Host_Parameters *hostdata = shost_priv(host);
+        struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
         scsi_remove_host(host);
-
         NCR_700_release(host);
         kfree(hostdata);
         free_irq(host->irq, host);
-        release_mem_region(A4000T_SCSI_ADDR, 0x1000);
-
+        release_mem_region(res->start, resource_size(res));
         return 0;
 }
 
-static struct platform_driver a4000t_scsi_driver = {
-        .driver = {
-                .name           = "a4000t-scsi",
-                .owner          = THIS_MODULE,
+static struct platform_driver amiga_a4000t_scsi_driver = {
+        .remove = __exit_p(amiga_a4000t_scsi_remove),
+        .driver   = {
+                .name   = "amiga-a4000t-scsi",
+                .owner  = THIS_MODULE,
         },
-        .probe          = a4000t_probe,
-        .remove         = __devexit_p(a4000t_device_remove),
 };
 
-static int __init a4000t_scsi_init(void)
+static int __init amiga_a4000t_scsi_init(void)
 {
-        int err;
-
-        err = platform_driver_register(&a4000t_scsi_driver);
-        if (err)
-                return err;
-
-        a4000t_scsi_device = platform_device_register_simple("a4000t-scsi",
-                        -1, NULL, 0);
-        if (IS_ERR(a4000t_scsi_device)) {
-                platform_driver_unregister(&a4000t_scsi_driver);
-                return PTR_ERR(a4000t_scsi_device);
-        }
-
-        return err;
+        return platform_driver_probe(&amiga_a4000t_scsi_driver,
+                                     amiga_a4000t_scsi_probe);
 }
 
-static void __exit a4000t_scsi_exit(void)
+module_init(amiga_a4000t_scsi_init);
+
+static void __exit amiga_a4000t_scsi_exit(void)
 {
-        platform_device_unregister(a4000t_scsi_device);
-        platform_driver_unregister(&a4000t_scsi_driver);
+        platform_driver_unregister(&amiga_a4000t_scsi_driver);
 }
 
-module_init(a4000t_scsi_init);
-module_exit(a4000t_scsi_exit);
+module_exit(amiga_a4000t_scsi_exit);
+
+MODULE_AUTHOR("Alan Hourihane <alanh@fairlite.demon.co.uk> / "
+              "Kars de Jong <jongk@linux-m68k.org>");
+MODULE_DESCRIPTION("Amiga A4000T NCR53C710 driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:amiga-a4000t-scsi");
diff --git a/drivers/scsi/aacraid/commctrl.c b/drivers/scsi/aacraid/commctrl.c
index 9c0c91178538..1a5bf5724750 100644
--- a/drivers/scsi/aacraid/commctrl.c
+++ b/drivers/scsi/aacraid/commctrl.c
@@ -655,9 +655,9 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
                                 /* Does this really need to be GFP_DMA? */
                                 p = kmalloc(usg->sg[i].count,GFP_KERNEL|__GFP_DMA);
                                 if(!p) {
-                                        kfree (usg);
-                                        dprintk((KERN_DEBUG"aacraid: Could not allocate SG buffer - size = %d buffer number %d of %d\n",
+                                        dprintk((KERN_DEBUG "aacraid: Could not allocate SG buffer - size = %d buffer number %d of %d\n",
                                           usg->sg[i].count,i,usg->count));
+                                        kfree(usg);
                                         rcode = -ENOMEM;
                                         goto cleanup;
                                 }
diff --git a/drivers/scsi/arcmsr/arcmsr.h b/drivers/scsi/arcmsr/arcmsr.h
index ab646e580d64..ce5371b3cdd5 100644
--- a/drivers/scsi/arcmsr/arcmsr.h
+++ b/drivers/scsi/arcmsr/arcmsr.h
@@ -48,7 +48,7 @@ struct device_attribute;
 /*The limit of outstanding scsi command that firmware can handle*/
 #define ARCMSR_MAX_OUTSTANDING_CMD                                              256
 #define ARCMSR_MAX_FREECCB_NUM                                                  320
-#define ARCMSR_DRIVER_VERSION                "Driver Version 1.20.00.15 2008/02/27"
+#define ARCMSR_DRIVER_VERSION                "Driver Version 1.20.00.15 2008/11/03"
 #define ARCMSR_SCSI_INITIATOR_ID                                                255
 #define ARCMSR_MAX_XFER_SECTORS                                                 512
 #define ARCMSR_MAX_XFER_SECTORS_B                                               4096
@@ -110,6 +110,8 @@ struct CMD_MESSAGE_FIELD
 #define FUNCTION_SAY_HELLO                      0x0807
 #define FUNCTION_SAY_GOODBYE                    0x0808
 #define FUNCTION_FLUSH_ADAPTER_CACHE            0x0809
+#define FUNCTION_GET_FIRMWARE_STATUS                    0x080A
+#define FUNCTION_HARDWARE_RESET                 0x080B
 /* ARECA IO CONTROL CODE*/
 #define ARCMSR_MESSAGE_READ_RQBUFFER       \
         ARECA_SATA_RAID | FUNCTION_READ_RQBUFFER
@@ -133,6 +135,7 @@ struct CMD_MESSAGE_FIELD
 #define ARCMSR_MESSAGE_RETURNCODE_OK              0x00000001
 #define ARCMSR_MESSAGE_RETURNCODE_ERROR           0x00000006
 #define ARCMSR_MESSAGE_RETURNCODE_3F              0x0000003F
+#define ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON   0x00000088
 /*
 *************************************************************
 **   structure for holding DMA address data
@@ -341,13 +344,13 @@ struct MessageUnit_B
         uint32_t        done_qbuffer[ARCMSR_MAX_HBB_POSTQUEUE];
         uint32_t        postq_index;
         uint32_t        doneq_index;
-        void            __iomem *drv2iop_doorbell_reg;
-        void            __iomem *drv2iop_doorbell_mask_reg;
-        void            __iomem *iop2drv_doorbell_reg;
-        void            __iomem *iop2drv_doorbell_mask_reg;
-        void            __iomem *msgcode_rwbuffer_reg;
-        void            __iomem *ioctl_wbuffer_reg;
-        void            __iomem *ioctl_rbuffer_reg;
+        uint32_t                __iomem *drv2iop_doorbell_reg;
+        uint32_t                __iomem *drv2iop_doorbell_mask_reg;
+        uint32_t                __iomem *iop2drv_doorbell_reg;
+        uint32_t                __iomem *iop2drv_doorbell_mask_reg;
+        uint32_t                __iomem *msgcode_rwbuffer_reg;
+        uint32_t                __iomem *ioctl_wbuffer_reg;
+        uint32_t                __iomem *ioctl_rbuffer_reg;
 };
 
 /*
@@ -375,6 +378,7 @@ struct AdapterControlBlock
         /* message unit ATU inbound base address0 */
 
         uint32_t                        acb_flags;
+        uint8_t                                 adapter_index;
         #define ACB_F_SCSISTOPADAPTER           0x0001
         #define ACB_F_MSG_STOP_BGRB             0x0002
         /* stop RAID background rebuild */
@@ -390,7 +394,7 @@ struct AdapterControlBlock
         #define ACB_F_BUS_RESET                 0x0080
         #define ACB_F_IOP_INITED                0x0100
         /* iop init */
-
+        #define ACB_F_FIRMWARE_TRAP                     0x0400
         struct CommandControlBlock *                    pccb_pool[ARCMSR_MAX_FREECCB_NUM];
         /* used for memory free */
         struct list_head                ccb_free_list;
@@ -423,12 +427,19 @@ struct AdapterControlBlock
 #define ARECA_RAID_GOOD               0xaa
         uint32_t                        num_resets;
         uint32_t                        num_aborts;
+        uint32_t                        signature;
         uint32_t                        firm_request_len;
         uint32_t                        firm_numbers_queue;
         uint32_t                        firm_sdram_size;
         uint32_t                        firm_hd_channels;
         char                            firm_model[12];
         char                            firm_version[20];
+        char                    device_map[20];                 /*21,84-99*/
+        struct work_struct              arcmsr_do_message_isr_bh;
+        struct timer_list               eternal_timer;
+        unsigned short          fw_state;
+        atomic_t                        rq_map_token;
+        int                     ante_token_value;
 };/* HW_DEVICE_EXTENSION */
 /*
 *******************************************************************************
diff --git a/drivers/scsi/arcmsr/arcmsr_attr.c b/drivers/scsi/arcmsr/arcmsr_attr.c
index a4e04c50c436..07fdfe57e38e 100644
--- a/drivers/scsi/arcmsr/arcmsr_attr.c
+++ b/drivers/scsi/arcmsr/arcmsr_attr.c
@@ -192,6 +192,7 @@ static struct bin_attribute arcmsr_sysfs_message_read_attr = {
         .attr = {
                 .name = "mu_read",
                 .mode = S_IRUSR ,
+                .owner = THIS_MODULE,
         },
         .size = 1032,
         .read = arcmsr_sysfs_iop_message_read,
@@ -201,6 +202,7 @@ static struct bin_attribute arcmsr_sysfs_message_write_attr = {
         .attr = {
                 .name = "mu_write",
                 .mode = S_IWUSR,
+                .owner = THIS_MODULE,
         },
         .size = 1032,
         .write = arcmsr_sysfs_iop_message_write,
@@ -210,6 +212,7 @@ static struct bin_attribute arcmsr_sysfs_message_clear_attr = {
         .attr = {
                 .name = "mu_clear",
                 .mode = S_IWUSR,
+                .owner = THIS_MODULE,
         },
         .size = 1,
         .write = arcmsr_sysfs_iop_message_clear,
diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c
index ffbe2192da3c..ffa54792bb33 100644
--- a/drivers/scsi/arcmsr/arcmsr_hba.c
+++ b/drivers/scsi/arcmsr/arcmsr_hba.c
@@ -72,8 +72,16 @@
 #include <scsi/scsicam.h>
 #include "arcmsr.h"
 
+#ifdef CONFIG_SCSI_ARCMSR_RESET
+        static int sleeptime = 20;
+        static int retrycount = 12;
+        module_param(sleeptime, int, S_IRUGO|S_IWUSR);
+        MODULE_PARM_DESC(sleeptime, "The waiting period for FW ready while bus reset");
+        module_param(retrycount, int, S_IRUGO|S_IWUSR);
+        MODULE_PARM_DESC(retrycount, "The retry count for FW ready while bus reset");
+#endif
 MODULE_AUTHOR("Erich Chen <support@areca.com.tw>");
-MODULE_DESCRIPTION("ARECA (ARC11xx/12xx/13xx/16xx) SATA/SAS RAID HOST Adapter");
+MODULE_DESCRIPTION("ARECA (ARC11xx/12xx/13xx/16xx) SATA/SAS RAID Host Bus Adapter");
 MODULE_LICENSE("Dual BSD/GPL");
 MODULE_VERSION(ARCMSR_DRIVER_VERSION);
 
@@ -96,6 +104,13 @@ static u32 arcmsr_disable_outbound_ints(struct AdapterControlBlock *acb);
 static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb);
 static void arcmsr_flush_hba_cache(struct AdapterControlBlock *acb);
 static void arcmsr_flush_hbb_cache(struct AdapterControlBlock *acb);
+static void arcmsr_request_device_map(unsigned long pacb);
+static void arcmsr_request_hba_device_map(struct AdapterControlBlock *acb);
+static void arcmsr_request_hbb_device_map(struct AdapterControlBlock *acb);
+static void arcmsr_message_isr_bh_fn(struct work_struct *work);
+static void *arcmsr_get_firmware_spec(struct AdapterControlBlock *acb, int mode);
+static void arcmsr_start_adapter_bgrb(struct AdapterControlBlock *acb);
+
 static const char *arcmsr_info(struct Scsi_Host *);
 static irqreturn_t arcmsr_interrupt(struct AdapterControlBlock *acb);
 static int arcmsr_adjust_disk_queue_depth(struct scsi_device *sdev,
@@ -112,7 +127,7 @@ static int arcmsr_adjust_disk_queue_depth(struct scsi_device *sdev,
 
 static struct scsi_host_template arcmsr_scsi_host_template = {
         .module                 = THIS_MODULE,
-        .name                   = "ARCMSR ARECA SATA/SAS RAID HOST Adapter"
+        .name                   = "ARCMSR ARECA SATA/SAS RAID Host Bus Adapter"
                                                         ARCMSR_DRIVER_VERSION,
         .info                   = arcmsr_info,
         .queuecommand           = arcmsr_queue_command,
@@ -128,16 +143,6 @@ static struct scsi_host_template arcmsr_scsi_host_template = {
         .use_clustering         = ENABLE_CLUSTERING,
         .shost_attrs            = arcmsr_host_attrs,
 };
-#ifdef CONFIG_SCSI_ARCMSR_AER
-static pci_ers_result_t arcmsr_pci_slot_reset(struct pci_dev *pdev);
-static pci_ers_result_t arcmsr_pci_error_detected(struct pci_dev *pdev,
-                                                pci_channel_state_t state);
-
-static struct pci_error_handlers arcmsr_pci_error_handlers = {
-        .error_detected         = arcmsr_pci_error_detected,
-        .slot_reset             = arcmsr_pci_slot_reset,
-};
-#endif
 static struct pci_device_id arcmsr_device_id_table[] = {
         {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1110)},
         {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1120)},
@@ -166,9 +171,6 @@ static struct pci_driver arcmsr_pci_driver = {
         .probe                  = arcmsr_probe,
         .remove                 = arcmsr_remove,
         .shutdown               = arcmsr_shutdown,
-        #ifdef CONFIG_SCSI_ARCMSR_AER
-        .err_handler            = &arcmsr_pci_error_handlers,
-        #endif
 };
 
 static irqreturn_t arcmsr_do_interrupt(int irq, void *dev_id)
@@ -236,10 +238,9 @@ static int arcmsr_alloc_ccb_pool(struct AdapterControlBlock *acb)
                 void *dma_coherent;
                 dma_addr_t dma_coherent_handle, dma_addr;
                 struct CommandControlBlock *ccb_tmp;
-                uint32_t intmask_org;
                 int i, j;
 
-                acb->pmuA = pci_ioremap_bar(pdev, 0);
+                acb->pmuA = ioremap(pci_resource_start(pdev, 0), pci_resource_len(pdev, 0));
                 if (!acb->pmuA) {
                         printk(KERN_NOTICE "arcmsr%d: memory mapping region fail \n",
                                                         acb->host->host_no);
@@ -281,12 +282,6 @@ static int arcmsr_alloc_ccb_pool(struct AdapterControlBlock *acb)
                 for (i = 0; i < ARCMSR_MAX_TARGETID; i++)
                         for (j = 0; j < ARCMSR_MAX_TARGETLUN; j++)
                                 acb->devstate[i][j] = ARECA_RAID_GONE;
-
-                /*
-                ** here we need to tell iop 331 our ccb_tmp.HighPart
-                ** if ccb_tmp.HighPart is not zero
-                */
-                intmask_org = arcmsr_disable_outbound_ints(acb);
                 }
                 break;
 
@@ -297,7 +292,6 @@ static int arcmsr_alloc_ccb_pool(struct AdapterControlBlock *acb)
                 void __iomem *mem_base0, *mem_base1;
                 void *dma_coherent;
                 dma_addr_t dma_coherent_handle, dma_addr;
-                uint32_t intmask_org;
                 struct CommandControlBlock *ccb_tmp;
                 int i, j;
 
@@ -333,11 +327,13 @@ static int arcmsr_alloc_ccb_pool(struct AdapterControlBlock *acb)
                 reg = (struct MessageUnit_B *)(dma_coherent +
                 ARCMSR_MAX_FREECCB_NUM * sizeof(struct CommandControlBlock));
                 acb->pmuB = reg;
-                mem_base0 = pci_ioremap_bar(pdev, 0);
+                mem_base0 = ioremap(pci_resource_start(pdev, 0),
+                                        pci_resource_len(pdev, 0));
                 if (!mem_base0)
                         goto out;
 
-                mem_base1 = pci_ioremap_bar(pdev, 2);
+                mem_base1 = ioremap(pci_resource_start(pdev, 2),
+                                        pci_resource_len(pdev, 2));
                 if (!mem_base1) {
                         iounmap(mem_base0);
                         goto out;
@@ -357,12 +353,6 @@ static int arcmsr_alloc_ccb_pool(struct AdapterControlBlock *acb)
                 for (i = 0; i < ARCMSR_MAX_TARGETID; i++)
                         for (j = 0; j < ARCMSR_MAX_TARGETLUN; j++)
                                 acb->devstate[i][j] = ARECA_RAID_GOOD;
-
-                /*
-                ** here we need to tell iop 331 our ccb_tmp.HighPart
-                ** if ccb_tmp.HighPart is not zero
-                */
-                intmask_org = arcmsr_disable_outbound_ints(acb);
                 }
                 break;
         }
@@ -374,6 +364,88 @@ out:
                 sizeof(struct MessageUnit_B)), acb->dma_coherent, acb->dma_coherent_handle);
         return -ENOMEM;
 }
+static void arcmsr_message_isr_bh_fn(struct work_struct *work)
+{
+        struct AdapterControlBlock *acb = container_of(work, struct AdapterControlBlock, arcmsr_do_message_isr_bh);
+
+        switch (acb->adapter_type) {
+                case ACB_ADAPTER_TYPE_A: {
+
+                        struct MessageUnit_A __iomem *reg  = acb->pmuA;
+                        char *acb_dev_map = (char *)acb->device_map;
+                        uint32_t __iomem *signature = (uint32_t __iomem *) (&reg->message_rwbuffer[0]);
+                        char __iomem *devicemap = (char __iomem *) (&reg->message_rwbuffer[21]);
+                        int target, lun;
+                        struct scsi_device *psdev;
+                        char diff;
+
+                        atomic_inc(&acb->rq_map_token);
+                        if (readl(signature) == ARCMSR_SIGNATURE_GET_CONFIG) {
+                                for (target = 0; target < ARCMSR_MAX_TARGETID - 1; target++) {
+                                        diff = (*acb_dev_map)^readb(devicemap);
+                                        if (diff != 0) {
+                                                char temp;
+                                                *acb_dev_map = readb(devicemap);
+                                                temp = *acb_dev_map;
+                                                for (lun = 0; lun < ARCMSR_MAX_TARGETLUN; lun++) {
+                                                        if ((temp & 0x01) == 1 && (diff & 0x01) == 1) {
+                                                                scsi_add_device(acb->host, 0, target, lun);
+                                                        } else if ((temp & 0x01) == 0 && (diff & 0x01) == 1) {
+                                                                psdev = scsi_device_lookup(acb->host, 0, target, lun);
+                                                                if (psdev != NULL) {
+                                                                        scsi_remove_device(psdev);
+                                                                        scsi_device_put(psdev);
+                                                                }
+                                                        }
+                                                        temp >>= 1;
+                                                        diff >>= 1;
+                                                }
+                                        }
+                                        devicemap++;
+                                        acb_dev_map++;
+                                }
+                        }
+                        break;
+                }
+
+                case ACB_ADAPTER_TYPE_B: {
+                        struct MessageUnit_B *reg  = acb->pmuB;
+                        char *acb_dev_map = (char *)acb->device_map;
+                        uint32_t __iomem *signature = (uint32_t __iomem *)(&reg->msgcode_rwbuffer_reg[0]);
+                        char __iomem *devicemap = (char __iomem *)(&reg->msgcode_rwbuffer_reg[21]);
+                        int target, lun;
+                        struct scsi_device *psdev;
+                        char diff;
+
+                        atomic_inc(&acb->rq_map_token);
+                        if (readl(signature) == ARCMSR_SIGNATURE_GET_CONFIG) {
+                                for (target = 0; target < ARCMSR_MAX_TARGETID - 1; target++) {
+                                        diff = (*acb_dev_map)^readb(devicemap);
+                                        if (diff != 0) {
+                                                char temp;
+                                                *acb_dev_map = readb(devicemap);
+                                                temp = *acb_dev_map;
+                                                for (lun = 0; lun < ARCMSR_MAX_TARGETLUN; lun++) {
+                                                        if ((temp & 0x01) == 1 && (diff & 0x01) == 1) {
+                                                                scsi_add_device(acb->host, 0, target, lun);
+                                                        } else if ((temp & 0x01) == 0 && (diff & 0x01) == 1) {
+                                                                psdev = scsi_device_lookup(acb->host, 0, target, lun);
+                                                                if (psdev != NULL) {
+                                                                        scsi_remove_device(psdev);
+                                                                        scsi_device_put(psdev);
+                                                                }
+                                                        }
+                                                        temp >>= 1;
+                                                        diff >>= 1;
+                                                }
+                                        }
+                                        devicemap++;
+                                        acb_dev_map++;
+                                }
+                        }
+                }
+        }
+}
 
 static int arcmsr_probe(struct pci_dev *pdev,
         const struct pci_device_id *id)
@@ -432,17 +504,17 @@ static int arcmsr_probe(struct pci_dev *pdev,
                            ACB_F_MESSAGE_WQBUFFER_READED);
         acb->acb_flags &= ~ACB_F_SCSISTOPADAPTER;
         INIT_LIST_HEAD(&acb->ccb_free_list);
-
+        INIT_WORK(&acb->arcmsr_do_message_isr_bh, arcmsr_message_isr_bh_fn);
         error = arcmsr_alloc_ccb_pool(acb);
         if (error)
                 goto out_release_regions;
 
+        arcmsr_iop_init(acb);
         error = request_irq(pdev->irq, arcmsr_do_interrupt,
                             IRQF_SHARED, "arcmsr", acb);
         if (error)
                 goto out_free_ccb_pool;
 
-        arcmsr_iop_init(acb);
         pci_set_drvdata(pdev, host);
         if (strncmp(acb->firm_version, "V1.42", 5) >= 0)
                 host->max_sectors= ARCMSR_MAX_XFER_SECTORS_B;
@@ -459,6 +531,14 @@ static int arcmsr_probe(struct pci_dev *pdev,
         #ifdef CONFIG_SCSI_ARCMSR_AER
         pci_enable_pcie_error_reporting(pdev);
         #endif
+        atomic_set(&acb->rq_map_token, 16);
+        acb->fw_state = true;
+        init_timer(&acb->eternal_timer);
+        acb->eternal_timer.expires = jiffies + msecs_to_jiffies(10*HZ);
+        acb->eternal_timer.data = (unsigned long) acb;
+        acb->eternal_timer.function = &arcmsr_request_device_map;
+        add_timer(&acb->eternal_timer);
+
         return 0;
  out_free_sysfs:
  out_free_irq:
@@ -518,40 +598,48 @@ static uint8_t arcmsr_hbb_wait_msgint_ready(struct AdapterControlBlock *acb)
         return 0xff;
 }
 
-static void arcmsr_abort_hba_allcmd(struct AdapterControlBlock *acb)
+static uint8_t arcmsr_abort_hba_allcmd(struct AdapterControlBlock *acb)
 {
         struct MessageUnit_A __iomem *reg = acb->pmuA;
 
         writel(ARCMSR_INBOUND_MESG0_ABORT_CMD, &reg->inbound_msgaddr0);
-        if (arcmsr_hba_wait_msgint_ready(acb))
+        if (arcmsr_hba_wait_msgint_ready(acb)) {
                 printk(KERN_NOTICE
                         "arcmsr%d: wait 'abort all outstanding command' timeout \n"
                         , acb->host->host_no);
+                return 0xff;
+        }
+        return 0x00;
 }
 
-static void arcmsr_abort_hbb_allcmd(struct AdapterControlBlock *acb)
+static uint8_t arcmsr_abort_hbb_allcmd(struct AdapterControlBlock *acb)
 {
         struct MessageUnit_B *reg = acb->pmuB;
 
         writel(ARCMSR_MESSAGE_ABORT_CMD, reg->drv2iop_doorbell_reg);
-        if (arcmsr_hbb_wait_msgint_ready(acb))
+        if (arcmsr_hbb_wait_msgint_ready(acb)) {
                 printk(KERN_NOTICE
                         "arcmsr%d: wait 'abort all outstanding command' timeout \n"
                         , acb->host->host_no);
+                return 0xff;
+        }
+        return 0x00;
 }
 
-static void arcmsr_abort_allcmd(struct AdapterControlBlock *acb)
+static uint8_t arcmsr_abort_allcmd(struct AdapterControlBlock *acb)
 {
+        uint8_t rtnval = 0;
         switch (acb->adapter_type) {
         case ACB_ADAPTER_TYPE_A: {
-                arcmsr_abort_hba_allcmd(acb);
+                rtnval = arcmsr_abort_hba_allcmd(acb);
                 }
                 break;
 
         case ACB_ADAPTER_TYPE_B: {
-                arcmsr_abort_hbb_allcmd(acb);
+                rtnval = arcmsr_abort_hbb_allcmd(acb);
                 }
         }
+        return rtnval;
 }
 
 static void arcmsr_pci_unmap_dma(struct CommandControlBlock *ccb)
@@ -649,8 +737,7 @@ static u32 arcmsr_disable_outbound_ints(struct AdapterControlBlock *acb)
 
         case ACB_ADAPTER_TYPE_A : {
                 struct MessageUnit_A __iomem *reg = acb->pmuA;
-                orig_mask = readl(&reg->outbound_intmask)|\
-                                ARCMSR_MU_OUTBOUND_MESSAGE0_INTMASKENABLE;
+                orig_mask = readl(&reg->outbound_intmask);
                 writel(orig_mask|ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE, \
                                                 &reg->outbound_intmask);
                 }
@@ -658,8 +745,7 @@ static u32 arcmsr_disable_outbound_ints(struct AdapterControlBlock *acb)
 
         case ACB_ADAPTER_TYPE_B : {
                 struct MessageUnit_B *reg = acb->pmuB;
-                orig_mask = readl(reg->iop2drv_doorbell_mask_reg) & \
-                                        (~ARCMSR_IOP2DRV_MESSAGE_CMD_DONE);
+                orig_mask = readl(reg->iop2drv_doorbell_mask_reg);
                 writel(0, reg->iop2drv_doorbell_mask_reg);
                 }
                 break;
@@ -795,12 +881,13 @@ static void arcmsr_remove(struct pci_dev *pdev)
         struct AdapterControlBlock *acb =
                 (struct AdapterControlBlock *) host->hostdata;
         int poll_count = 0;
-
         arcmsr_free_sysfs_attr(acb);
         scsi_remove_host(host);
+        flush_scheduled_work();
+        del_timer_sync(&acb->eternal_timer);
+        arcmsr_disable_outbound_ints(acb);
         arcmsr_stop_adapter_bgrb(acb);
         arcmsr_flush_adapter_cache(acb);
-        arcmsr_disable_outbound_ints(acb);
         acb->acb_flags |= ACB_F_SCSISTOPADAPTER;
         acb->acb_flags &= ~ACB_F_IOP_INITED;
 
@@ -841,7 +928,9 @@ static void arcmsr_shutdown(struct pci_dev *pdev)
         struct Scsi_Host *host = pci_get_drvdata(pdev);
         struct AdapterControlBlock *acb =
                 (struct AdapterControlBlock *)host->hostdata;
-
+        del_timer_sync(&acb->eternal_timer);
+        arcmsr_disable_outbound_ints(acb);
+        flush_scheduled_work();
         arcmsr_stop_adapter_bgrb(acb);
         arcmsr_flush_adapter_cache(acb);
 }
@@ -861,7 +950,7 @@ static void arcmsr_module_exit(void)
 module_init(arcmsr_module_init);
 module_exit(arcmsr_module_exit);
 
-static void arcmsr_enable_outbound_ints(struct AdapterControlBlock *acb, \
+static void arcmsr_enable_outbound_ints(struct AdapterControlBlock *acb,
                                                 u32 intmask_org)
 {
         u32 mask;
@@ -871,7 +960,8 @@ static void arcmsr_enable_outbound_ints(struct AdapterControlBlock *acb, \
         case ACB_ADAPTER_TYPE_A : {
                 struct MessageUnit_A __iomem *reg = acb->pmuA;
                 mask = intmask_org & ~(ARCMSR_MU_OUTBOUND_POSTQUEUE_INTMASKENABLE |
-                             ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE);
+                             ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE|
+                             ARCMSR_MU_OUTBOUND_MESSAGE0_INTMASKENABLE);
                 writel(mask, &reg->outbound_intmask);
                 acb->outbound_int_enable = ~(intmask_org & mask) & 0x000000ff;
                 }
@@ -879,8 +969,10 @@ static void arcmsr_enable_outbound_ints(struct AdapterControlBlock *acb, \
 
         case ACB_ADAPTER_TYPE_B : {
                 struct MessageUnit_B *reg = acb->pmuB;
-                mask = intmask_org | (ARCMSR_IOP2DRV_DATA_WRITE_OK | \
-                        ARCMSR_IOP2DRV_DATA_READ_OK | ARCMSR_IOP2DRV_CDB_DONE);
+                mask = intmask_org | (ARCMSR_IOP2DRV_DATA_WRITE_OK |
+                        ARCMSR_IOP2DRV_DATA_READ_OK |
+                        ARCMSR_IOP2DRV_CDB_DONE |
+                        ARCMSR_IOP2DRV_MESSAGE_CMD_DONE);
                 writel(mask, reg->iop2drv_doorbell_mask_reg);
                 acb->outbound_int_enable = (intmask_org | mask) & 0x0000000f;
                 }
@@ -1048,8 +1140,8 @@ static void arcmsr_free_ccb_pool(struct AdapterControlBlock *acb)
         }
         case ACB_ADAPTER_TYPE_B: {
                 struct MessageUnit_B *reg = acb->pmuB;
-                iounmap(reg->drv2iop_doorbell_reg - ARCMSR_DRV2IOP_DOORBELL);
-                iounmap(reg->ioctl_wbuffer_reg - ARCMSR_IOCTL_WBUFFER);
+                iounmap((u8 *)reg->drv2iop_doorbell_reg - ARCMSR_DRV2IOP_DOORBELL);
+                iounmap((u8 *)reg->ioctl_wbuffer_reg - ARCMSR_IOCTL_WBUFFER);
                 dma_free_coherent(&acb->pdev->dev,
                 (ARCMSR_MAX_FREECCB_NUM * sizeof(struct CommandControlBlock) + 0x20 +
                 sizeof(struct MessageUnit_B)), acb->dma_coherent, acb->dma_coherent_handle);
@@ -1249,13 +1341,36 @@ static void arcmsr_hbb_postqueue_isr(struct AdapterControlBlock *acb)
                 reg->doneq_index = index;
         }
 }
+/*
+**********************************************************************************
+** Handle a message interrupt
+**
+** The only message interrupt we expect is in response to a query for the current adapter config.
+** We want this in order to compare the drivemap so that we can detect newly-attached drives.
+**********************************************************************************
+*/
+static void arcmsr_hba_message_isr(struct AdapterControlBlock *acb)
+{
+        struct MessageUnit_A *reg  = acb->pmuA;
+
+        /*clear interrupt and message state*/
+        writel(ARCMSR_MU_OUTBOUND_MESSAGE0_INT, &reg->outbound_intstatus);
+        schedule_work(&acb->arcmsr_do_message_isr_bh);
+}
+static void arcmsr_hbb_message_isr(struct AdapterControlBlock *acb)
+{
+        struct MessageUnit_B *reg  = acb->pmuB;
 
+        /*clear interrupt and message state*/
+        writel(ARCMSR_MESSAGE_INT_CLEAR_PATTERN, reg->iop2drv_doorbell_reg);
+        schedule_work(&acb->arcmsr_do_message_isr_bh);
+}
 static int arcmsr_handle_hba_isr(struct AdapterControlBlock *acb)
 {
         uint32_t outbound_intstatus;
         struct MessageUnit_A __iomem *reg = acb->pmuA;
 
-        outbound_intstatus = readl(&reg->outbound_intstatus) & \
+        outbound_intstatus = readl(&reg->outbound_intstatus) &
                                                         acb->outbound_int_enable;
         if (!(outbound_intstatus & ARCMSR_MU_OUTBOUND_HANDLE_INT))      {
                 return 1;
@@ -1267,6 +1382,10 @@ static int arcmsr_handle_hba_isr(struct AdapterControlBlock *acb)
         if (outbound_intstatus & ARCMSR_MU_OUTBOUND_POSTQUEUE_INT) {
                 arcmsr_hba_postqueue_isr(acb);
         }
+        if (outbound_intstatus & ARCMSR_MU_OUTBOUND_MESSAGE0_INT)       {
+                /* messenger of "driver to iop commands" */
+                arcmsr_hba_message_isr(acb);
+        }
         return 0;
 }
 
@@ -1275,13 +1394,14 @@ static int arcmsr_handle_hbb_isr(struct AdapterControlBlock *acb)
         uint32_t outbound_doorbell;
         struct MessageUnit_B *reg = acb->pmuB;
 
-        outbound_doorbell = readl(reg->iop2drv_doorbell_reg) & \
+        outbound_doorbell = readl(reg->iop2drv_doorbell_reg) &
                                                         acb->outbound_int_enable;
         if (!outbound_doorbell)
                 return 1;
 
         writel(~outbound_doorbell, reg->iop2drv_doorbell_reg);
-        /*in case the last action of doorbell interrupt clearance is cached, this action can push HW to write down the clear bit*/
+        /*in case the last action of doorbell interrupt clearance is cached,
+        this action can push HW to write down the clear bit*/
         readl(reg->iop2drv_doorbell_reg);
         writel(ARCMSR_DRV2IOP_END_OF_INTERRUPT, reg->drv2iop_doorbell_reg);
         if (outbound_doorbell & ARCMSR_IOP2DRV_DATA_WRITE_OK)   {
@@ -1293,6 +1413,10 @@ static int arcmsr_handle_hbb_isr(struct AdapterControlBlock *acb)
         if (outbound_doorbell & ARCMSR_IOP2DRV_CDB_DONE) {
                 arcmsr_hbb_postqueue_isr(acb);
         }
+        if (outbound_doorbell & ARCMSR_IOP2DRV_MESSAGE_CMD_DONE) {
+                /* messenger of "driver to iop commands" */
+                arcmsr_hbb_message_isr(acb);
+        }
 
         return 0;
 }
@@ -1360,7 +1484,7 @@ void arcmsr_post_ioctldata2iop(struct AdapterControlBlock *acb)
         }
 }
 
-static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, \
+static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb,
                                         struct scsi_cmnd *cmd)
 {
         struct CMD_MESSAGE_FIELD *pcmdmessagefld;
@@ -1398,6 +1522,13 @@ static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, \
                         retvalue = ARCMSR_MESSAGE_FAIL;
                         goto message_out;
                 }
+
+                if (!acb->fw_state) {
+                        pcmdmessagefld->cmdmessage.ReturnCode =
+                        ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
+                        goto message_out;
+                }
+
                 ptmpQbuffer = ver_addr;
                 while ((acb->rqbuf_firstindex != acb->rqbuf_lastindex)
                         && (allxfer_len < 1031)) {
@@ -1444,6 +1575,12 @@ static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, \
                         retvalue = ARCMSR_MESSAGE_FAIL;
                         goto message_out;
                 }
+                if (!acb->fw_state) {
+                        pcmdmessagefld->cmdmessage.ReturnCode =
+                        ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
+                        goto message_out;
+                }
+
                 ptmpuserbuffer = ver_addr;
                 user_len = pcmdmessagefld->cmdmessage.Length;
                 memcpy(ptmpuserbuffer, pcmdmessagefld->messagedatabuffer, user_len);
@@ -1496,6 +1633,11 @@ static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, \
 
         case ARCMSR_MESSAGE_CLEAR_RQBUFFER: {
                 uint8_t *pQbuffer = acb->rqbuffer;
+                if (!acb->fw_state) {
+                        pcmdmessagefld->cmdmessage.ReturnCode =
+                        ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
+                        goto message_out;
+                }
 
                 if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
                         acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
@@ -1511,6 +1653,11 @@ static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, \
 
         case ARCMSR_MESSAGE_CLEAR_WQBUFFER: {
                 uint8_t *pQbuffer = acb->wqbuffer;
+                if (!acb->fw_state) {
+                        pcmdmessagefld->cmdmessage.ReturnCode =
+                        ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
+                        goto message_out;
+                }
 
                 if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
                         acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
@@ -1529,6 +1676,11 @@ static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, \
 
         case ARCMSR_MESSAGE_CLEAR_ALLQBUFFER: {
                 uint8_t *pQbuffer;
+                if (!acb->fw_state) {
+                        pcmdmessagefld->cmdmessage.ReturnCode =
+                        ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
+                        goto message_out;
+                }
 
                 if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
                         acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
@@ -1551,13 +1703,22 @@ static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, \
                 break;
 
         case ARCMSR_MESSAGE_RETURN_CODE_3F: {
+                if (!acb->fw_state) {
+                        pcmdmessagefld->cmdmessage.ReturnCode =
+                        ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
+                        goto message_out;
+                }
                 pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_3F;
                 }
                 break;
 
         case ARCMSR_MESSAGE_SAY_HELLO: {
                 int8_t *hello_string = "Hello! I am ARCMSR";
-
+                if (!acb->fw_state) {
+                        pcmdmessagefld->cmdmessage.ReturnCode =
+                        ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
+                        goto message_out;
+                }
                 memcpy(pcmdmessagefld->messagedatabuffer, hello_string
                         , (int16_t)strlen(hello_string));
                 pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
@@ -1565,10 +1726,20 @@ static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, \
                 break;
 
         case ARCMSR_MESSAGE_SAY_GOODBYE:
+                if (!acb->fw_state) {
+                        pcmdmessagefld->cmdmessage.ReturnCode =
+                        ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
+                        goto message_out;
+                }
                 arcmsr_iop_parking(acb);
                 break;
 
         case ARCMSR_MESSAGE_FLUSH_ADAPTER_CACHE:
+                if (!acb->fw_state) {
+                        pcmdmessagefld->cmdmessage.ReturnCode =
+                        ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
+                        goto message_out;
+                }
                 arcmsr_flush_adapter_cache(acb);
                 break;
 
@@ -1651,16 +1822,57 @@ static int arcmsr_queue_command(struct scsi_cmnd *cmd,
         struct CommandControlBlock *ccb;
         int target = cmd->device->id;
         int lun = cmd->device->lun;
-
+        uint8_t scsicmd = cmd->cmnd[0];
         cmd->scsi_done = done;
         cmd->host_scribble = NULL;
         cmd->result = 0;
+
+        if ((scsicmd == SYNCHRONIZE_CACHE) || (scsicmd == SEND_DIAGNOSTIC)) {
+                if (acb->devstate[target][lun] == ARECA_RAID_GONE) {
+                        cmd->result = (DID_NO_CONNECT << 16);
+                }
+                cmd->scsi_done(cmd);
+                return 0;
+        }
+
         if (acb->acb_flags & ACB_F_BUS_RESET) {
-                printk(KERN_NOTICE "arcmsr%d: bus reset"
-                        " and return busy \n"
-                        , acb->host->host_no);
+                switch (acb->adapter_type) {
+                        case ACB_ADAPTER_TYPE_A: {
+                                struct MessageUnit_A __iomem *reg = acb->pmuA;
+                                uint32_t intmask_org, outbound_doorbell;
+
+                                if ((readl(&reg->outbound_msgaddr1) &
+                                        ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK) == 0) {
+                                        printk(KERN_NOTICE "arcmsr%d: bus reset and return busy\n",
+                                                acb->host->host_no);
                 return SCSI_MLQUEUE_HOST_BUSY;
         }
+
+                                acb->acb_flags &= ~ACB_F_FIRMWARE_TRAP;
+                                printk(KERN_NOTICE "arcmsr%d: hardware bus reset and reset ok\n",
+                                        acb->host->host_no);
+                                /* disable all outbound interrupt */
+                                intmask_org = arcmsr_disable_outbound_ints(acb);
+                                arcmsr_get_firmware_spec(acb, 1);
+                                /*start background rebuild*/
+                                arcmsr_start_adapter_bgrb(acb);
+                                /* clear Qbuffer if door bell ringed */
+                                outbound_doorbell = readl(&reg->outbound_doorbell);
+                                /*clear interrupt */
+                                writel(outbound_doorbell, &reg->outbound_doorbell);
+                                writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK,
+                                        &reg->inbound_doorbell);
+                                /* enable outbound Post Queue,outbound doorbell Interrupt */
+                                arcmsr_enable_outbound_ints(acb, intmask_org);
+                                acb->acb_flags |= ACB_F_IOP_INITED;
+                                acb->acb_flags &= ~ACB_F_BUS_RESET;
+                        }
+                        break;
+                        case ACB_ADAPTER_TYPE_B: {
+                        }
+                }
+        }
+
         if (target == 16) {
                 /* virtual device for iop message transfer */
                 arcmsr_handle_virtual_command(acb, cmd);
@@ -1699,21 +1911,25 @@ static int arcmsr_queue_command(struct scsi_cmnd *cmd,
         return 0;
 }
 
-static void arcmsr_get_hba_config(struct AdapterControlBlock *acb)
+static void *arcmsr_get_hba_config(struct AdapterControlBlock *acb, int mode)
 {
         struct MessageUnit_A __iomem *reg = acb->pmuA;
         char *acb_firm_model = acb->firm_model;
         char *acb_firm_version = acb->firm_version;
+        char *acb_device_map = acb->device_map;
         char __iomem *iop_firm_model = (char __iomem *)(&reg->message_rwbuffer[15]);
         char __iomem *iop_firm_version = (char __iomem *)(&reg->message_rwbuffer[17]);
+        char __iomem *iop_device_map = (char __iomem *) (&reg->message_rwbuffer[21]);
         int count;
 
         writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, &reg->inbound_msgaddr0);
         if (arcmsr_hba_wait_msgint_ready(acb)) {
                 printk(KERN_NOTICE "arcmsr%d: wait 'get adapter firmware \
                         miscellaneous data' timeout \n", acb->host->host_no);
+                return NULL;
         }
 
+        if (mode == 1) {
         count = 8;
         while (count) {
                 *acb_firm_model = readb(iop_firm_model);
@@ -1730,34 +1946,48 @@ static void arcmsr_get_hba_config(struct AdapterControlBlock *acb)
                 count--;
         }
 
+                count = 16;
+                while (count) {
+                        *acb_device_map = readb(iop_device_map);
+                        acb_device_map++;
+                        iop_device_map++;
+                        count--;
+                }
+
         printk(KERN_INFO        "ARECA RAID ADAPTER%d: FIRMWARE VERSION %s \n"
                 , acb->host->host_no
                 , acb->firm_version);
-
+                acb->signature = readl(&reg->message_rwbuffer[0]);
         acb->firm_request_len = readl(&reg->message_rwbuffer[1]);
         acb->firm_numbers_queue = readl(&reg->message_rwbuffer[2]);
         acb->firm_sdram_size = readl(&reg->message_rwbuffer[3]);
         acb->firm_hd_channels = readl(&reg->message_rwbuffer[4]);
 }
-
-static void arcmsr_get_hbb_config(struct AdapterControlBlock *acb)
+        return reg->message_rwbuffer;
+}
+static void __iomem *arcmsr_get_hbb_config(struct AdapterControlBlock *acb, int mode)
 {
         struct MessageUnit_B *reg = acb->pmuB;
         uint32_t __iomem *lrwbuffer = reg->msgcode_rwbuffer_reg;
         char *acb_firm_model = acb->firm_model;
         char *acb_firm_version = acb->firm_version;
+        char *acb_device_map = acb->device_map;
         char __iomem *iop_firm_model = (char __iomem *)(&lrwbuffer[15]);
         /*firm_model,15,60-67*/
         char __iomem *iop_firm_version = (char __iomem *)(&lrwbuffer[17]);
         /*firm_version,17,68-83*/
+        char __iomem *iop_device_map = (char __iomem *) (&lrwbuffer[21]);
+        /*firm_version,21,84-99*/
         int count;
 
         writel(ARCMSR_MESSAGE_GET_CONFIG, reg->drv2iop_doorbell_reg);
         if (arcmsr_hbb_wait_msgint_ready(acb)) {
                 printk(KERN_NOTICE "arcmsr%d: wait 'get adapter firmware \
                         miscellaneous data' timeout \n", acb->host->host_no);
+                return NULL;
         }
 
+        if (mode == 1) {
         count = 8;
         while (count)
         {
@@ -1776,11 +2006,20 @@ static void arcmsr_get_hbb_config(struct AdapterControlBlock *acb)
                 count--;
         }
 
+                count = 16;
+                while (count) {
+                        *acb_device_map = readb(iop_device_map);
+                        acb_device_map++;
+                        iop_device_map++;
+                        count--;
+                }
+
         printk(KERN_INFO "ARECA RAID ADAPTER%d: FIRMWARE VERSION %s \n",
                         acb->host->host_no,
                         acb->firm_version);
 
-        lrwbuffer++;
+                acb->signature = readl(lrwbuffer++);
+                /*firm_signature,1,00-03*/
         acb->firm_request_len = readl(lrwbuffer++);
         /*firm_request_len,1,04-07*/
         acb->firm_numbers_queue = readl(lrwbuffer++);
@@ -1790,20 +2029,23 @@ static void arcmsr_get_hbb_config(struct AdapterControlBlock *acb)
         acb->firm_hd_channels = readl(lrwbuffer);
         /*firm_ide_channels,4,16-19*/
 }
-
-static void arcmsr_get_firmware_spec(struct AdapterControlBlock *acb)
+        return reg->msgcode_rwbuffer_reg;
+}
+static void *arcmsr_get_firmware_spec(struct AdapterControlBlock *acb, int mode)
 {
+        void *rtnval = 0;
         switch (acb->adapter_type) {
         case ACB_ADAPTER_TYPE_A: {
-                arcmsr_get_hba_config(acb);
+                rtnval = arcmsr_get_hba_config(acb, mode);
                 }
                 break;
 
         case ACB_ADAPTER_TYPE_B: {
-                arcmsr_get_hbb_config(acb);
+                rtnval = arcmsr_get_hbb_config(acb, mode);
                 }
                 break;
         }
+        return rtnval;
 }
 
 static void arcmsr_polling_hba_ccbdone(struct AdapterControlBlock *acb,
@@ -2043,6 +2285,66 @@ static void arcmsr_wait_firmware_ready(struct AdapterControlBlock *acb)
         }
 }
 
+static void arcmsr_request_hba_device_map(struct AdapterControlBlock *acb)
+{
+        struct MessageUnit_A __iomem *reg = acb->pmuA;
+
+        if (unlikely(atomic_read(&acb->rq_map_token) == 0)) {
+                acb->fw_state = false;
+        } else {
+        /*to prevent rq_map_token from changing by other interrupt, then
+        avoid the dead-lock*/
+                acb->fw_state = true;
+                atomic_dec(&acb->rq_map_token);
+                if (!(acb->fw_state) ||
+                        (acb->ante_token_value == atomic_read(&acb->rq_map_token))) {
+                        atomic_set(&acb->rq_map_token, 16);
+                }
+                acb->ante_token_value = atomic_read(&acb->rq_map_token);
+                writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, &reg->inbound_msgaddr0);
+        }
+        mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6000));
+        return;
+}
+
+static void arcmsr_request_hbb_device_map(struct AdapterControlBlock *acb)
+{
+        struct MessageUnit_B __iomem *reg = acb->pmuB;
+
+        if (unlikely(atomic_read(&acb->rq_map_token) == 0)) {
+                acb->fw_state = false;
+        } else {
+        /*to prevent rq_map_token from changing by other interrupt, then
+        avoid the dead-lock*/
+                acb->fw_state = true;
+                atomic_dec(&acb->rq_map_token);
+                if (!(acb->fw_state) ||
+                        (acb->ante_token_value == atomic_read(&acb->rq_map_token))) {
+                        atomic_set(&acb->rq_map_token, 16);
+                }
+                acb->ante_token_value = atomic_read(&acb->rq_map_token);
+                writel(ARCMSR_MESSAGE_GET_CONFIG, reg->drv2iop_doorbell_reg);
+        }
+        mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6000));
+        return;
+}
+
+static void arcmsr_request_device_map(unsigned long pacb)
+{
+        struct AdapterControlBlock *acb = (struct AdapterControlBlock *)pacb;
+
+        switch (acb->adapter_type) {
+                case ACB_ADAPTER_TYPE_A: {
+                        arcmsr_request_hba_device_map(acb);
+                }
+                break;
+                case ACB_ADAPTER_TYPE_B: {
+                        arcmsr_request_hbb_device_map(acb);
+                }
+                break;
+        }
+}
+
 static void arcmsr_start_hba_bgrb(struct AdapterControlBlock *acb)
 {
         struct MessageUnit_A __iomem *reg = acb->pmuA;
@@ -2121,6 +2423,60 @@ static void arcmsr_enable_eoi_mode(struct AdapterControlBlock *acb)
         return;
 }
 
+static void arcmsr_hardware_reset(struct AdapterControlBlock *acb)
+{
+        uint8_t value[64];
+        int i;
+
+        /* backup pci config data */
+        for (i = 0; i < 64; i++) {
+                pci_read_config_byte(acb->pdev, i, &value[i]);
+        }
+        /* hardware reset signal */
+        pci_write_config_byte(acb->pdev, 0x84, 0x20);
+        msleep(1000);
+        /* write back pci config data */
+        for (i = 0; i < 64; i++) {
+                pci_write_config_byte(acb->pdev, i, value[i]);
+        }
+        msleep(1000);
+        return;
+}
+/*
+****************************************************************************
+****************************************************************************
+*/
+#ifdef CONFIG_SCSI_ARCMSR_RESET
+        int arcmsr_sleep_for_bus_reset(struct scsi_cmnd *cmd)
+        {
+                        struct Scsi_Host *shost = NULL;
+                        spinlock_t *host_lock = NULL;
+                        int i, isleep;
+
+                        shost = cmd->device->host;
+                        host_lock = shost->host_lock;
+
+                        printk(KERN_NOTICE "Host %d bus reset over, sleep %d seconds (busy %d, can queue %d) ...........\n",
+                                        shost->host_no, sleeptime, shost->host_busy, shost->can_queue);
+                        isleep = sleeptime / 10;
+                        spin_unlock_irq(host_lock);
+                        if (isleep > 0) {
+                                for (i = 0; i < isleep; i++) {
+                                        msleep(10000);
+                                        printk(KERN_NOTICE "^%d^\n", i);
+                                }
+                        }
+
+                        isleep = sleeptime % 10;
+                        if (isleep > 0) {
+                                msleep(isleep * 1000);
+                                printk(KERN_NOTICE "^v^\n");
+                        }
+                        spin_lock_irq(host_lock);
+                        printk(KERN_NOTICE "***** wake up *****\n");
+                        return 0;
+        }
+#endif
 static void arcmsr_iop_init(struct AdapterControlBlock *acb)
 {
         uint32_t intmask_org;
@@ -2129,7 +2485,7 @@ static void arcmsr_iop_init(struct AdapterControlBlock *acb)
        intmask_org = arcmsr_disable_outbound_ints(acb);
         arcmsr_wait_firmware_ready(acb);
         arcmsr_iop_confirm(acb);
-        arcmsr_get_firmware_spec(acb);
+        arcmsr_get_firmware_spec(acb, 1);
         /*start background rebuild*/
         arcmsr_start_adapter_bgrb(acb);
         /* empty doorbell Qbuffer if door bell ringed */
@@ -2140,51 +2496,110 @@ static void arcmsr_iop_init(struct AdapterControlBlock *acb)
         acb->acb_flags |= ACB_F_IOP_INITED;
 }
 
-static void arcmsr_iop_reset(struct AdapterControlBlock *acb)
+static uint8_t arcmsr_iop_reset(struct AdapterControlBlock *acb)
 {
         struct CommandControlBlock *ccb;
         uint32_t intmask_org;
+        uint8_t rtnval = 0x00;
         int i = 0;
 
         if (atomic_read(&acb->ccboutstandingcount) != 0) {
+                /* disable all outbound interrupt */
+                intmask_org = arcmsr_disable_outbound_ints(acb);
                 /* talk to iop 331 outstanding command aborted */
-                arcmsr_abort_allcmd(acb);
-
+                rtnval = arcmsr_abort_allcmd(acb);
                 /* wait for 3 sec for all command aborted*/
                 ssleep(3);
-
-                /* disable all outbound interrupt */
-                intmask_org = arcmsr_disable_outbound_ints(acb);
                 /* clear all outbound posted Q */
                 arcmsr_done4abort_postqueue(acb);
                 for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) {
                         ccb = acb->pccb_pool[i];
                         if (ccb->startdone == ARCMSR_CCB_START) {
-                                ccb->startdone = ARCMSR_CCB_ABORTED;
                                 arcmsr_ccb_complete(ccb, 1);
                         }
                 }
+                atomic_set(&acb->ccboutstandingcount, 0);
                 /* enable all outbound interrupt */
                 arcmsr_enable_outbound_ints(acb, intmask_org);
+                return rtnval;
         }
+        return rtnval;
 }
 
 static int arcmsr_bus_reset(struct scsi_cmnd *cmd)
 {
         struct AdapterControlBlock *acb =
                 (struct AdapterControlBlock *)cmd->device->host->hostdata;
-        int i;
+        int retry = 0;
 
-        acb->num_resets++;
+        if (acb->acb_flags & ACB_F_BUS_RESET)
+                return SUCCESS;
+
+        printk(KERN_NOTICE "arcmsr%d: bus reset ..... \n", acb->adapter_index);
         acb->acb_flags |= ACB_F_BUS_RESET;
-        for (i = 0; i < 400; i++) {
-                if (!atomic_read(&acb->ccboutstandingcount))
+        acb->num_resets++;
+        while (atomic_read(&acb->ccboutstandingcount) != 0 && retry < 4) {
+                arcmsr_interrupt(acb);
+                retry++;
+        }
+
+        if (arcmsr_iop_reset(acb)) {
+                switch (acb->adapter_type) {
+                case ACB_ADAPTER_TYPE_A: {
+                        printk(KERN_NOTICE "arcmsr%d: do hardware bus reset, num_resets = %d num_aborts = %d \n",
+                                acb->adapter_index, acb->num_resets, acb->num_aborts);
+                        arcmsr_hardware_reset(acb);
+                        acb->acb_flags |= ACB_F_FIRMWARE_TRAP;
+                        acb->acb_flags &= ~ACB_F_IOP_INITED;
+                        #ifdef CONFIG_SCSI_ARCMSR_RESET
+                        struct MessageUnit_A __iomem *reg = acb->pmuA;
+                        uint32_t intmask_org, outbound_doorbell;
+                        int retry_count = 0;
+sleep_again:
+                        arcmsr_sleep_for_bus_reset(cmd);
+                        if ((readl(&reg->outbound_msgaddr1) &
+                        ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK) == 0) {
+                        printk(KERN_NOTICE "arcmsr%d: hardware bus reset and return busy, retry=%d \n",
+                        acb->host->host_no, retry_count);
+                        if (retry_count > retrycount) {
+                                printk(KERN_NOTICE "arcmsr%d: hardware bus reset and return busy, retry aborted \n",
+                                acb->host->host_no);
+                        return SUCCESS;
+                        }
+                        retry_count++;
+                        goto sleep_again;
+                        }
+                        acb->acb_flags &= ~ACB_F_FIRMWARE_TRAP;
+                        acb->acb_flags |= ACB_F_IOP_INITED;
+                        acb->acb_flags &= ~ACB_F_BUS_RESET;
+                        printk(KERN_NOTICE "arcmsr%d: hardware bus reset and reset ok \n",
+                                acb->host->host_no);
+                        /* disable all outbound interrupt */
+                        intmask_org = arcmsr_disable_outbound_ints(acb);
+                        arcmsr_get_firmware_spec(acb, 1);
+                        /*start background rebuild*/
+                        arcmsr_start_adapter_bgrb(acb);
+                        /* clear Qbuffer if door bell ringed */
+                        outbound_doorbell = readl(&reg->outbound_doorbell);
+                        writel(outbound_doorbell, &reg->outbound_doorbell); /*clear interrupt */
+                        writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK, &reg->inbound_doorbell);
+                        /* enable outbound Post Queue,outbound doorbell Interrupt */
+                        arcmsr_enable_outbound_ints(acb, intmask_org);
+                        atomic_set(&acb->rq_map_token, 16);
+                        init_timer(&acb->eternal_timer);
+                        acb->eternal_timer.expires = jiffies + msecs_to_jiffies(20*HZ);
+                        acb->eternal_timer.data = (unsigned long) acb;
+                        acb->eternal_timer.function = &arcmsr_request_device_map;
+                        add_timer(&acb->eternal_timer);
+                        #endif
+                }
                         break;
-                arcmsr_interrupt(acb);/* FIXME: need spinlock */
-                msleep(25);
+                case ACB_ADAPTER_TYPE_B: {
         }
-        arcmsr_iop_reset(acb);
+                }
+        } else {
         acb->acb_flags &= ~ACB_F_BUS_RESET;
+        }
         return SUCCESS;
 }
 
@@ -2277,98 +2692,3 @@ static const char *arcmsr_info(struct Scsi_Host *host)
                         ARCMSR_DRIVER_VERSION);
         return buf;
 }
-#ifdef CONFIG_SCSI_ARCMSR_AER
-static pci_ers_result_t arcmsr_pci_slot_reset(struct pci_dev *pdev)
-{
-        struct Scsi_Host *host = pci_get_drvdata(pdev);
-        struct AdapterControlBlock *acb =
-                (struct AdapterControlBlock *) host->hostdata;
-        uint32_t intmask_org;
-        int i, j;
-
-        if (pci_enable_device(pdev)) {
-                return PCI_ERS_RESULT_DISCONNECT;
-        }
-        pci_set_master(pdev);
-        intmask_org = arcmsr_disable_outbound_ints(acb);
-        acb->acb_flags |= (ACB_F_MESSAGE_WQBUFFER_CLEARED |
-                           ACB_F_MESSAGE_RQBUFFER_CLEARED |
-                           ACB_F_MESSAGE_WQBUFFER_READED);
-        acb->acb_flags &= ~ACB_F_SCSISTOPADAPTER;
-        for (i = 0; i < ARCMSR_MAX_TARGETID; i++)
-                for (j = 0; j < ARCMSR_MAX_TARGETLUN; j++)
-                        acb->devstate[i][j] = ARECA_RAID_GONE;
-
-        arcmsr_wait_firmware_ready(acb);
-        arcmsr_iop_confirm(acb);
-       /* disable all outbound interrupt */
-        arcmsr_get_firmware_spec(acb);
-        /*start background rebuild*/
-        arcmsr_start_adapter_bgrb(acb);
-        /* empty doorbell Qbuffer if door bell ringed */
-        arcmsr_clear_doorbell_queue_buffer(acb);
-        arcmsr_enable_eoi_mode(acb);
-        /* enable outbound Post Queue,outbound doorbell Interrupt */
-        arcmsr_enable_outbound_ints(acb, intmask_org);
-        acb->acb_flags |= ACB_F_IOP_INITED;
-
-        pci_enable_pcie_error_reporting(pdev);
-        return PCI_ERS_RESULT_RECOVERED;
-}
-
-static void arcmsr_pci_ers_need_reset_forepart(struct pci_dev *pdev)
-{
-        struct Scsi_Host *host = pci_get_drvdata(pdev);
-        struct AdapterControlBlock *acb = (struct AdapterControlBlock *)host->hostdata;
-        struct CommandControlBlock *ccb;
-        uint32_t intmask_org;
-        int i = 0;
-
-        if (atomic_read(&acb->ccboutstandingcount) != 0) {
-                /* talk to iop 331 outstanding command aborted */
-                arcmsr_abort_allcmd(acb);
-                /* wait for 3 sec for all command aborted*/
-                ssleep(3);
-                /* disable all outbound interrupt */
-                intmask_org = arcmsr_disable_outbound_ints(acb);
-                /* clear all outbound posted Q */
-                arcmsr_done4abort_postqueue(acb);
-                for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) {
-                        ccb = acb->pccb_pool[i];
-                        if (ccb->startdone == ARCMSR_CCB_START) {
-                                ccb->startdone = ARCMSR_CCB_ABORTED;
-                                arcmsr_ccb_complete(ccb, 1);
-                        }
-                }
-                /* enable all outbound interrupt */
-                arcmsr_enable_outbound_ints(acb, intmask_org);
-        }
-        pci_disable_device(pdev);
-}
-
-static void arcmsr_pci_ers_disconnect_forepart(struct pci_dev *pdev)
-{
-                        struct Scsi_Host *host = pci_get_drvdata(pdev);
-                        struct AdapterControlBlock *acb = \
-                                (struct AdapterControlBlock *)host->hostdata;
-
-                        arcmsr_stop_adapter_bgrb(acb);
-                        arcmsr_flush_adapter_cache(acb);
-}
-
-static pci_ers_result_t arcmsr_pci_error_detected(struct pci_dev *pdev,
-                                                pci_channel_state_t state)
-{
-        switch (state) {
-        case pci_channel_io_frozen:
-                        arcmsr_pci_ers_need_reset_forepart(pdev);
-                        return PCI_ERS_RESULT_NEED_RESET;
-        case pci_channel_io_perm_failure:
-                        arcmsr_pci_ers_disconnect_forepart(pdev);
-                        return PCI_ERS_RESULT_DISCONNECT;
-                        break;
-        default:
-                        return PCI_ERS_RESULT_NEED_RESET;
-          }
-}
-#endif
diff --git a/drivers/scsi/be2iscsi/be_mgmt.c b/drivers/scsi/be2iscsi/be_mgmt.c
index e641922f20bc..350cbeaae160 100644
--- a/drivers/scsi/be2iscsi/be_mgmt.c
+++ b/drivers/scsi/be2iscsi/be_mgmt.c
@@ -167,10 +167,9 @@ unsigned char mgmt_invalidate_icds(struct beiscsi_hba *phba,
                                 &nonemb_cmd.dma);
         if (nonemb_cmd.va == NULL) {
                 SE_DEBUG(DBG_LVL_1,
-                         "Failed to allocate memory for"
-                         "mgmt_invalidate_icds \n");
+                         "Failed to allocate memory for mgmt_invalidate_icds\n");
                 spin_unlock(&ctrl->mbox_lock);
-                return -1;
+                return 0;
         }
         nonemb_cmd.size = sizeof(struct invalidate_commands_params_in);
         req = nonemb_cmd.va;
diff --git a/drivers/scsi/bfa/bfa_core.c b/drivers/scsi/bfa/bfa_core.c
index 0c08e185a766..3a7b3f88932f 100644
--- a/drivers/scsi/bfa/bfa_core.c
+++ b/drivers/scsi/bfa/bfa_core.c
@@ -84,11 +84,32 @@ bfa_cfg_get_meminfo(struct bfa_iocfc_cfg_s *cfg, struct bfa_meminfo_s *meminfo)
         for (i = 0; hal_mods[i]; i++)
                 hal_mods[i]->meminfo(cfg, &km_len, &dm_len);
 
+        dm_len += bfa_port_meminfo();
 
         meminfo->meminfo[BFA_MEM_TYPE_KVA - 1].mem_len = km_len;
         meminfo->meminfo[BFA_MEM_TYPE_DMA - 1].mem_len = dm_len;
 }
 
+static void
+bfa_com_port_attach(struct bfa_s *bfa, struct bfa_meminfo_s *mi)
+{
+        struct bfa_port_s       *port = &bfa->modules.port;
+        uint32_t                dm_len;
+        uint8_t                 *dm_kva;
+        uint64_t                dm_pa;
+
+        dm_len = bfa_port_meminfo();
+        dm_kva = bfa_meminfo_dma_virt(mi);
+        dm_pa  = bfa_meminfo_dma_phys(mi);
+
+        memset(port, 0, sizeof(struct bfa_port_s));
+        bfa_port_attach(port, &bfa->ioc, bfa, bfa->trcmod, bfa->logm);
+        bfa_port_mem_claim(port, dm_kva, dm_pa);
+
+        bfa_meminfo_dma_virt(mi) = dm_kva + dm_len;
+        bfa_meminfo_dma_phys(mi) = dm_pa + dm_len;
+}
+
 /**
  * Use this function to do attach the driver instance with the BFA
  * library. This function will not trigger any HW initialization
@@ -140,6 +161,7 @@ bfa_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
         for (i = 0; hal_mods[i]; i++)
                 hal_mods[i]->attach(bfa, bfad, cfg, meminfo, pcidev);
 
+        bfa_com_port_attach(bfa, meminfo);
 }
 
 /**
diff --git a/drivers/scsi/gvp11.c b/drivers/scsi/gvp11.c
index 18b7102bb80e..2ce26eb7a1ec 100644
--- a/drivers/scsi/gvp11.c
+++ b/drivers/scsi/gvp11.c
@@ -1,36 +1,35 @@
 #include <linux/types.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-#include <linux/blkdev.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/zorro.h>
 
-#include <asm/setup.h>
 #include <asm/page.h>
 #include <asm/pgtable.h>
 #include <asm/amigaints.h>
 #include <asm/amigahw.h>
-#include <linux/zorro.h>
-#include <asm/irq.h>
-#include <linux/spinlock.h>
 
 #include "scsi.h"
-#include <scsi/scsi_host.h>
 #include "wd33c93.h"
 #include "gvp11.h"
 
-#include <linux/stat.h>
 
+#define CHECK_WD33C93
 
-#define DMA(ptr)        ((gvp11_scsiregs *)((ptr)->base))
+struct gvp11_hostdata {
+        struct WD33C93_hostdata wh;
+        struct gvp11_scsiregs *regs;
+};
 
-static irqreturn_t gvp11_intr(int irq, void *_instance)
+static irqreturn_t gvp11_intr(int irq, void *data)
 {
+        struct Scsi_Host *instance = data;
+        struct gvp11_hostdata *hdata = shost_priv(instance);
+        unsigned int status = hdata->regs->CNTR;
         unsigned long flags;
-        unsigned int status;
-        struct Scsi_Host *instance = (struct Scsi_Host *)_instance;
 
-        status = DMA(instance)->CNTR;
         if (!(status & GVP11_DMAC_INT_PENDING))
                 return IRQ_NONE;
 
@@ -50,64 +49,66 @@ void gvp11_setup(char *str, int *ints)
 static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
 {
         struct Scsi_Host *instance = cmd->device->host;
-        struct WD33C93_hostdata *hdata = shost_priv(instance);
+        struct gvp11_hostdata *hdata = shost_priv(instance);
+        struct WD33C93_hostdata *wh = &hdata->wh;
+        struct gvp11_scsiregs *regs = hdata->regs;
         unsigned short cntr = GVP11_DMAC_INT_ENABLE;
         unsigned long addr = virt_to_bus(cmd->SCp.ptr);
         int bank_mask;
         static int scsi_alloc_out_of_range = 0;
 
         /* use bounce buffer if the physical address is bad */
-        if (addr & hdata->dma_xfer_mask) {
-                hdata->dma_bounce_len = (cmd->SCp.this_residual + 511) & ~0x1ff;
+        if (addr & wh->dma_xfer_mask) {
+                wh->dma_bounce_len = (cmd->SCp.this_residual + 511) & ~0x1ff;
 
                 if (!scsi_alloc_out_of_range) {
-                        hdata->dma_bounce_buffer =
-                                kmalloc(hdata->dma_bounce_len, GFP_KERNEL);
-                        hdata->dma_buffer_pool = BUF_SCSI_ALLOCED;
+                        wh->dma_bounce_buffer =
+                                kmalloc(wh->dma_bounce_len, GFP_KERNEL);
+                        wh->dma_buffer_pool = BUF_SCSI_ALLOCED;
                 }
 
                 if (scsi_alloc_out_of_range ||
-                    !hdata->dma_bounce_buffer) {
-                        hdata->dma_bounce_buffer =
-                                amiga_chip_alloc(hdata->dma_bounce_len,
+                    !wh->dma_bounce_buffer) {
+                        wh->dma_bounce_buffer =
+                                amiga_chip_alloc(wh->dma_bounce_len,
                                                  "GVP II SCSI Bounce Buffer");
 
-                        if (!hdata->dma_bounce_buffer) {
-                                hdata->dma_bounce_len = 0;
+                        if (!wh->dma_bounce_buffer) {
+                                wh->dma_bounce_len = 0;
                                 return 1;
                         }
 
-                        hdata->dma_buffer_pool = BUF_CHIP_ALLOCED;
+                        wh->dma_buffer_pool = BUF_CHIP_ALLOCED;
                 }
 
                 /* check if the address of the bounce buffer is OK */
-                addr = virt_to_bus(hdata->dma_bounce_buffer);
+                addr = virt_to_bus(wh->dma_bounce_buffer);
 
-                if (addr & hdata->dma_xfer_mask) {
+                if (addr & wh->dma_xfer_mask) {
                         /* fall back to Chip RAM if address out of range */
-                        if (hdata->dma_buffer_pool == BUF_SCSI_ALLOCED) {
-                                kfree(hdata->dma_bounce_buffer);
+                        if (wh->dma_buffer_pool == BUF_SCSI_ALLOCED) {
+                                kfree(wh->dma_bounce_buffer);
                                 scsi_alloc_out_of_range = 1;
                         } else {
-                                amiga_chip_free(hdata->dma_bounce_buffer);
+                                amiga_chip_free(wh->dma_bounce_buffer);
                         }
 
-                        hdata->dma_bounce_buffer =
-                                amiga_chip_alloc(hdata->dma_bounce_len,
+                        wh->dma_bounce_buffer =
+                                amiga_chip_alloc(wh->dma_bounce_len,
                                                  "GVP II SCSI Bounce Buffer");
 
-                        if (!hdata->dma_bounce_buffer) {
-                                hdata->dma_bounce_len = 0;
+                        if (!wh->dma_bounce_buffer) {
+                                wh->dma_bounce_len = 0;
                                 return 1;
                         }
 
-                        addr = virt_to_bus(hdata->dma_bounce_buffer);
-                        hdata->dma_buffer_pool = BUF_CHIP_ALLOCED;
+                        addr = virt_to_bus(wh->dma_bounce_buffer);
+                        wh->dma_buffer_pool = BUF_CHIP_ALLOCED;
                 }
 
                 if (!dir_in) {
                         /* copy to bounce buffer for a write */
-                        memcpy(hdata->dma_bounce_buffer, cmd->SCp.ptr,
+                        memcpy(wh->dma_bounce_buffer, cmd->SCp.ptr,
                                cmd->SCp.this_residual);
                 }
         }
@@ -116,11 +117,11 @@ static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
         if (!dir_in)
                 cntr |= GVP11_DMAC_DIR_WRITE;
 
-        hdata->dma_dir = dir_in;
-        DMA(cmd->device->host)->CNTR = cntr;
+        wh->dma_dir = dir_in;
+        regs->CNTR = cntr;
 
         /* setup DMA *physical* address */
-        DMA(cmd->device->host)->ACR = addr;
+        regs->ACR = addr;
 
         if (dir_in) {
                 /* invalidate any cache */
@@ -130,12 +131,12 @@ static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
                 cache_push(addr, cmd->SCp.this_residual);
         }
 
-        bank_mask = (~hdata->dma_xfer_mask >> 18) & 0x01c0;
+        bank_mask = (~wh->dma_xfer_mask >> 18) & 0x01c0;
         if (bank_mask)
-                DMA(cmd->device->host)->BANK = bank_mask & (addr >> 18);
+                regs->BANK = bank_mask & (addr >> 18);
 
         /* start DMA */
-        DMA(cmd->device->host)->ST_DMA = 1;
+        regs->ST_DMA = 1;
 
         /* return success */
         return 0;
@@ -144,236 +145,53 @@ static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
 static void dma_stop(struct Scsi_Host *instance, struct scsi_cmnd *SCpnt,
                      int status)
 {
-        struct WD33C93_hostdata *hdata = shost_priv(instance);
+        struct gvp11_hostdata *hdata = shost_priv(instance);
+        struct WD33C93_hostdata *wh = &hdata->wh;
+        struct gvp11_scsiregs *regs = hdata->regs;
 
         /* stop DMA */
-        DMA(instance)->SP_DMA = 1;
+        regs->SP_DMA = 1;
         /* remove write bit from CONTROL bits */
-        DMA(instance)->CNTR = GVP11_DMAC_INT_ENABLE;
+        regs->CNTR = GVP11_DMAC_INT_ENABLE;
 
         /* copy from a bounce buffer, if necessary */
-        if (status && hdata->dma_bounce_buffer) {
-                if (hdata->dma_dir && SCpnt)
-                        memcpy(SCpnt->SCp.ptr, hdata->dma_bounce_buffer,
+        if (status && wh->dma_bounce_buffer) {
+                if (wh->dma_dir && SCpnt)
+                        memcpy(SCpnt->SCp.ptr, wh->dma_bounce_buffer,
                                SCpnt->SCp.this_residual);
 
-                if (hdata->dma_buffer_pool == BUF_SCSI_ALLOCED)
-                        kfree(hdata->dma_bounce_buffer);
-                else
-                        amiga_chip_free(hdata->dma_bounce_buffer);
-
-                hdata->dma_bounce_buffer = NULL;
-                hdata->dma_bounce_len = 0;
-        }
-}
-
-#define CHECK_WD33C93
-
-int __init gvp11_detect(struct scsi_host_template *tpnt)
-{
-        static unsigned char called = 0;
-        struct Scsi_Host *instance;
-        unsigned long address;
-        unsigned int epc;
-        struct zorro_dev *z = NULL;
-        unsigned int default_dma_xfer_mask;
-        struct WD33C93_hostdata *hdata;
-        wd33c93_regs regs;
-        int num_gvp11 = 0;
-#ifdef CHECK_WD33C93
-        volatile unsigned char *sasr_3393, *scmd_3393;
-        unsigned char save_sasr;
-        unsigned char q, qq;
-#endif
-
-        if (!MACH_IS_AMIGA || called)
-                return 0;
-        called = 1;
-
-        tpnt->proc_name = "GVP11";
-        tpnt->proc_info = &wd33c93_proc_info;
-
-        while ((z = zorro_find_device(ZORRO_WILDCARD, z))) {
-                /*
-                 * This should (hopefully) be the correct way to identify
-                 * all the different GVP SCSI controllers (except for the
-                 * SERIES I though).
-                 */
-
-                if (z->id == ZORRO_PROD_GVP_COMBO_030_R3_SCSI ||
-                    z->id == ZORRO_PROD_GVP_SERIES_II)
-                        default_dma_xfer_mask = ~0x00ffffff;
-                else if (z->id == ZORRO_PROD_GVP_GFORCE_030_SCSI ||
-                         z->id == ZORRO_PROD_GVP_A530_SCSI ||
-                         z->id == ZORRO_PROD_GVP_COMBO_030_R4_SCSI)
-                        default_dma_xfer_mask = ~0x01ffffff;
-                else if (z->id == ZORRO_PROD_GVP_A1291 ||
-                         z->id == ZORRO_PROD_GVP_GFORCE_040_SCSI_1)
-                        default_dma_xfer_mask = ~0x07ffffff;
+                if (wh->dma_buffer_pool == BUF_SCSI_ALLOCED)
+                        kfree(wh->dma_bounce_buffer);
                 else
-                        continue;
-
-                /*
-                 * Rumors state that some GVP ram boards use the same product
-                 * code as the SCSI controllers. Therefore if the board-size
-                 * is not 64KB we asume it is a ram board and bail out.
-                 */
-                if (z->resource.end - z->resource.start != 0xffff)
-                        continue;
+                        amiga_chip_free(wh->dma_bounce_buffer);
 
-                address = z->resource.start;
-                if (!request_mem_region(address, 256, "wd33c93"))
-                        continue;
-
-#ifdef CHECK_WD33C93
-
-                /*
-                 * These darn GVP boards are a problem - it can be tough to tell
-                 * whether or not they include a SCSI controller. This is the
-                 * ultimate Yet-Another-GVP-Detection-Hack in that it actually
-                 * probes for a WD33c93 chip: If we find one, it's extremely
-                 * likely that this card supports SCSI, regardless of Product_
-                 * Code, Board_Size, etc.
-                 */
-
-                /* Get pointers to the presumed register locations and save contents */
-
-                sasr_3393 = &(((gvp11_scsiregs *)(ZTWO_VADDR(address)))->SASR);
-                scmd_3393 = &(((gvp11_scsiregs *)(ZTWO_VADDR(address)))->SCMD);
-                save_sasr = *sasr_3393;
-
-                /* First test the AuxStatus Reg */
-
-                q = *sasr_3393; /* read it */
-                if (q & 0x08)   /* bit 3 should always be clear */
-                        goto release;
-                *sasr_3393 = WD_AUXILIARY_STATUS;       /* setup indirect address */
-                if (*sasr_3393 == WD_AUXILIARY_STATUS) {        /* shouldn't retain the write */
-                        *sasr_3393 = save_sasr; /* Oops - restore this byte */
-                        goto release;
-                }
-                if (*sasr_3393 != q) {  /* should still read the same */
-                        *sasr_3393 = save_sasr; /* Oops - restore this byte */
-                        goto release;
-                }
-                if (*scmd_3393 != q)    /* and so should the image at 0x1f */
-                        goto release;
-
-                /*
-                 * Ok, we probably have a wd33c93, but let's check a few other places
-                 * for good measure. Make sure that this works for both 'A and 'B
-                 * chip versions.
-                 */
-
-                *sasr_3393 = WD_SCSI_STATUS;
-                q = *scmd_3393;
-                *sasr_3393 = WD_SCSI_STATUS;
-                *scmd_3393 = ~q;
-                *sasr_3393 = WD_SCSI_STATUS;
-                qq = *scmd_3393;
-                *sasr_3393 = WD_SCSI_STATUS;
-                *scmd_3393 = q;
-                if (qq != q)    /* should be read only */
-                        goto release;
-                *sasr_3393 = 0x1e;      /* this register is unimplemented */
-                q = *scmd_3393;
-                *sasr_3393 = 0x1e;
-                *scmd_3393 = ~q;
-                *sasr_3393 = 0x1e;
-                qq = *scmd_3393;
-                *sasr_3393 = 0x1e;
-                *scmd_3393 = q;
-                if (qq != q || qq != 0xff)      /* should be read only, all 1's */
-                        goto release;
-                *sasr_3393 = WD_TIMEOUT_PERIOD;
-                q = *scmd_3393;
-                *sasr_3393 = WD_TIMEOUT_PERIOD;
-                *scmd_3393 = ~q;
-                *sasr_3393 = WD_TIMEOUT_PERIOD;
-                qq = *scmd_3393;
-                *sasr_3393 = WD_TIMEOUT_PERIOD;
-                *scmd_3393 = q;
-                if (qq != (~q & 0xff))  /* should be read/write */
-                        goto release;
-#endif
-
-                instance = scsi_register(tpnt, sizeof(struct WD33C93_hostdata));
-                if (instance == NULL)
-                        goto release;
-                instance->base = ZTWO_VADDR(address);
-                instance->irq = IRQ_AMIGA_PORTS;
-                instance->unique_id = z->slotaddr;
-
-                hdata = shost_priv(instance);
-                if (gvp11_xfer_mask)
-                        hdata->dma_xfer_mask = gvp11_xfer_mask;
-                else
-                        hdata->dma_xfer_mask = default_dma_xfer_mask;
-
-                DMA(instance)->secret2 = 1;
-                DMA(instance)->secret1 = 0;
-                DMA(instance)->secret3 = 15;
-                while (DMA(instance)->CNTR & GVP11_DMAC_BUSY)
-                        ;
-                DMA(instance)->CNTR = 0;
-
-                DMA(instance)->BANK = 0;
-
-                epc = *(unsigned short *)(ZTWO_VADDR(address) + 0x8000);
-
-                /*
-                 * Check for 14MHz SCSI clock
-                 */
-                regs.SASR = &(DMA(instance)->SASR);
-                regs.SCMD = &(DMA(instance)->SCMD);
-                hdata->no_sync = 0xff;
-                hdata->fast = 0;
-                hdata->dma_mode = CTRL_DMA;
-                wd33c93_init(instance, regs, dma_setup, dma_stop,
-                             (epc & GVP_SCSICLKMASK) ? WD33C93_FS_8_10
-                                                     : WD33C93_FS_12_15);
-
-                if (request_irq(IRQ_AMIGA_PORTS, gvp11_intr, IRQF_SHARED,
-                                "GVP11 SCSI", instance))
-                        goto unregister;
-                DMA(instance)->CNTR = GVP11_DMAC_INT_ENABLE;
-                num_gvp11++;
-                continue;
-
-unregister:
-                scsi_unregister(instance);
-release:
-                release_mem_region(address, 256);
+                wh->dma_bounce_buffer = NULL;
+                wh->dma_bounce_len = 0;
         }
-
-        return num_gvp11;
 }
 
 static int gvp11_bus_reset(struct scsi_cmnd *cmd)
 {
+        struct Scsi_Host *instance = cmd->device->host;
+
         /* FIXME perform bus-specific reset */
 
         /* FIXME 2: shouldn't we no-op this function (return
            FAILED), and fall back to host reset function,
            wd33c93_host_reset ? */
 
-        spin_lock_irq(cmd->device->host->host_lock);
+        spin_lock_irq(instance->host_lock);
         wd33c93_host_reset(cmd);
-        spin_unlock_irq(cmd->device->host->host_lock);
+        spin_unlock_irq(instance->host_lock);
 
         return SUCCESS;
 }
 
-
-#define HOSTS_C
-
-#include "gvp11.h"
-
-static struct scsi_host_template driver_template = {
-        .proc_name              = "GVP11",
+static struct scsi_host_template gvp11_scsi_template = {
+        .module                 = THIS_MODULE,
         .name                   = "GVP Series II SCSI",
-        .detect                 = gvp11_detect,
-        .release                = gvp11_release,
+        .proc_info              = wd33c93_proc_info,
+        .proc_name              = "GVP11",
         .queuecommand           = wd33c93_queuecommand,
         .eh_abort_handler       = wd33c93_abort,
         .eh_bus_reset_handler   = gvp11_bus_reset,
@@ -385,17 +203,230 @@ static struct scsi_host_template driver_template = {
         .use_clustering         = DISABLE_CLUSTERING
 };
 
+static int __devinit check_wd33c93(struct gvp11_scsiregs *regs)
+{
+#ifdef CHECK_WD33C93
+        volatile unsigned char *sasr_3393, *scmd_3393;
+        unsigned char save_sasr;
+        unsigned char q, qq;
 
-#include "scsi_module.c"
+        /*
+         * These darn GVP boards are a problem - it can be tough to tell
+         * whether or not they include a SCSI controller. This is the
+         * ultimate Yet-Another-GVP-Detection-Hack in that it actually
+         * probes for a WD33c93 chip: If we find one, it's extremely
+         * likely that this card supports SCSI, regardless of Product_
+         * Code, Board_Size, etc.
+         */
+
+        /* Get pointers to the presumed register locations and save contents */
+
+        sasr_3393 = &regs->SASR;
+        scmd_3393 = &regs->SCMD;
+        save_sasr = *sasr_3393;
+
+        /* First test the AuxStatus Reg */
+
+        q = *sasr_3393; /* read it */
+        if (q & 0x08)   /* bit 3 should always be clear */
+                return -ENODEV;
+        *sasr_3393 = WD_AUXILIARY_STATUS;       /* setup indirect address */
+        if (*sasr_3393 == WD_AUXILIARY_STATUS) {        /* shouldn't retain the write */
+                *sasr_3393 = save_sasr; /* Oops - restore this byte */
+                return -ENODEV;
+        }
+        if (*sasr_3393 != q) {  /* should still read the same */
+                *sasr_3393 = save_sasr; /* Oops - restore this byte */
+                return -ENODEV;
+        }
+        if (*scmd_3393 != q)    /* and so should the image at 0x1f */
+                return -ENODEV;
+
+        /*
+         * Ok, we probably have a wd33c93, but let's check a few other places
+         * for good measure. Make sure that this works for both 'A and 'B
+         * chip versions.
+         */
+
+        *sasr_3393 = WD_SCSI_STATUS;
+        q = *scmd_3393;
+        *sasr_3393 = WD_SCSI_STATUS;
+        *scmd_3393 = ~q;
+        *sasr_3393 = WD_SCSI_STATUS;
+        qq = *scmd_3393;
+        *sasr_3393 = WD_SCSI_STATUS;
+        *scmd_3393 = q;
+        if (qq != q)    /* should be read only */
+                return -ENODEV;
+        *sasr_3393 = 0x1e;      /* this register is unimplemented */
+        q = *scmd_3393;
+        *sasr_3393 = 0x1e;
+        *scmd_3393 = ~q;
+        *sasr_3393 = 0x1e;
+        qq = *scmd_3393;
+        *sasr_3393 = 0x1e;
+        *scmd_3393 = q;
+        if (qq != q || qq != 0xff)      /* should be read only, all 1's */
+                return -ENODEV;
+        *sasr_3393 = WD_TIMEOUT_PERIOD;
+        q = *scmd_3393;
+        *sasr_3393 = WD_TIMEOUT_PERIOD;
+        *scmd_3393 = ~q;
+        *sasr_3393 = WD_TIMEOUT_PERIOD;
+        qq = *scmd_3393;
+        *sasr_3393 = WD_TIMEOUT_PERIOD;
+        *scmd_3393 = q;
+        if (qq != (~q & 0xff))  /* should be read/write */
+                return -ENODEV;
+#endif /* CHECK_WD33C93 */
 
-int gvp11_release(struct Scsi_Host *instance)
+        return 0;
+}
+
+static int __devinit gvp11_probe(struct zorro_dev *z,
+                                 const struct zorro_device_id *ent)
 {
-#ifdef MODULE
-        DMA(instance)->CNTR = 0;
-        release_mem_region(ZTWO_PADDR(instance->base), 256);
+        struct Scsi_Host *instance;
+        unsigned long address;
+        int error;
+        unsigned int epc;
+        unsigned int default_dma_xfer_mask;
+        struct gvp11_hostdata *hdata;
+        struct gvp11_scsiregs *regs;
+        wd33c93_regs wdregs;
+
+        default_dma_xfer_mask = ent->driver_data;
+
+        /*
+         * Rumors state that some GVP ram boards use the same product
+         * code as the SCSI controllers. Therefore if the board-size
+         * is not 64KB we asume it is a ram board and bail out.
+         */
+        if (zorro_resource_len(z) != 0x10000)
+                return -ENODEV;
+
+        address = z->resource.start;
+        if (!request_mem_region(address, 256, "wd33c93"))
+                return -EBUSY;
+
+        regs = (struct gvp11_scsiregs *)(ZTWO_VADDR(address));
+
+        error = check_wd33c93(regs);
+        if (error)
+                goto fail_check_or_alloc;
+
+        instance = scsi_host_alloc(&gvp11_scsi_template,
+                                   sizeof(struct gvp11_hostdata));
+        if (!instance) {
+                error = -ENOMEM;
+                goto fail_check_or_alloc;
+        }
+
+        instance->irq = IRQ_AMIGA_PORTS;
+        instance->unique_id = z->slotaddr;
+
+        regs->secret2 = 1;
+        regs->secret1 = 0;
+        regs->secret3 = 15;
+        while (regs->CNTR & GVP11_DMAC_BUSY)
+                ;
+        regs->CNTR = 0;
+        regs->BANK = 0;
+
+        wdregs.SASR = &regs->SASR;
+        wdregs.SCMD = &regs->SCMD;
+
+        hdata = shost_priv(instance);
+        if (gvp11_xfer_mask)
+                hdata->wh.dma_xfer_mask = gvp11_xfer_mask;
+        else
+                hdata->wh.dma_xfer_mask = default_dma_xfer_mask;
+
+        hdata->wh.no_sync = 0xff;
+        hdata->wh.fast = 0;
+        hdata->wh.dma_mode = CTRL_DMA;
+        hdata->regs = regs;
+
+        /*
+         * Check for 14MHz SCSI clock
+         */
+        epc = *(unsigned short *)(ZTWO_VADDR(address) + 0x8000);
+        wd33c93_init(instance, wdregs, dma_setup, dma_stop,
+                     (epc & GVP_SCSICLKMASK) ? WD33C93_FS_8_10
+                                             : WD33C93_FS_12_15);
+
+        error = request_irq(IRQ_AMIGA_PORTS, gvp11_intr, IRQF_SHARED,
+                            "GVP11 SCSI", instance);
+        if (error)
+                goto fail_irq;
+
+        regs->CNTR = GVP11_DMAC_INT_ENABLE;
+
+        error = scsi_add_host(instance, NULL);
+        if (error)
+                goto fail_host;
+
+        zorro_set_drvdata(z, instance);
+        scsi_scan_host(instance);
+        return 0;
+
+fail_host:
         free_irq(IRQ_AMIGA_PORTS, instance);
-#endif
-        return 1;
+fail_irq:
+        scsi_host_put(instance);
+fail_check_or_alloc:
+        release_mem_region(address, 256);
+        return error;
+}
+
+static void __devexit gvp11_remove(struct zorro_dev *z)
+{
+        struct Scsi_Host *instance = zorro_get_drvdata(z);
+        struct gvp11_hostdata *hdata = shost_priv(instance);
+
+        hdata->regs->CNTR = 0;
+        scsi_remove_host(instance);
+        free_irq(IRQ_AMIGA_PORTS, instance);
+        scsi_host_put(instance);
+        release_mem_region(z->resource.start, 256);
+}
+
+        /*
+         * This should (hopefully) be the correct way to identify
+         * all the different GVP SCSI controllers (except for the
+         * SERIES I though).
+         */
+
+static struct zorro_device_id gvp11_zorro_tbl[] __devinitdata = {
+        { ZORRO_PROD_GVP_COMBO_030_R3_SCSI,     ~0x00ffffff },
+        { ZORRO_PROD_GVP_SERIES_II,             ~0x00ffffff },
+        { ZORRO_PROD_GVP_GFORCE_030_SCSI,       ~0x01ffffff },
+        { ZORRO_PROD_GVP_A530_SCSI,             ~0x01ffffff },
+        { ZORRO_PROD_GVP_COMBO_030_R4_SCSI,     ~0x01ffffff },
+        { ZORRO_PROD_GVP_A1291,                 ~0x07ffffff },
+        { ZORRO_PROD_GVP_GFORCE_040_SCSI_1,     ~0x07ffffff },
+        { 0 }
+};
+MODULE_DEVICE_TABLE(zorro, gvp11_zorro_tbl);
+
+static struct zorro_driver gvp11_driver = {
+        .name           = "gvp11",
+        .id_table       = gvp11_zorro_tbl,
+        .probe          = gvp11_probe,
+        .remove         = __devexit_p(gvp11_remove),
+};
+
+static int __init gvp11_init(void)
+{
+        return zorro_register_driver(&gvp11_driver);
+}
+module_init(gvp11_init);
+
+static void __exit gvp11_exit(void)
+{
+        zorro_unregister_driver(&gvp11_driver);
 }
+module_exit(gvp11_exit);
 
+MODULE_DESCRIPTION("GVP Series II SCSI");
 MODULE_LICENSE("GPL");
diff --git a/drivers/scsi/gvp11.h b/drivers/scsi/gvp11.h
index e2efdf9601ef..852913cde5dd 100644
--- a/drivers/scsi/gvp11.h
+++ b/drivers/scsi/gvp11.h
@@ -11,9 +11,6 @@
 
 #include <linux/types.h>
 
-int gvp11_detect(struct scsi_host_template *);
-int gvp11_release(struct Scsi_Host *);
-
 #ifndef CMD_PER_LUN
 #define CMD_PER_LUN             2
 #endif
@@ -22,15 +19,13 @@ int gvp11_release(struct Scsi_Host *);
 #define CAN_QUEUE               16
 #endif
 
-#ifndef HOSTS_C
-
 /*
  * if the transfer address ANDed with this results in a non-zero
  * result, then we can't use DMA.
  */
 #define GVP11_XFER_MASK         (0xff000001)
 
-typedef struct {
+struct gvp11_scsiregs {
                  unsigned char  pad1[64];
         volatile unsigned short CNTR;
                  unsigned char  pad2[31];
@@ -46,7 +41,7 @@ typedef struct {
         volatile unsigned short SP_DMA;
         volatile unsigned short secret2; /* store 1 here */
         volatile unsigned short secret3; /* store 15 here */
-} gvp11_scsiregs;
+};
 
 /* bits in CNTR */
 #define GVP11_DMAC_BUSY         (1<<0)
@@ -54,6 +49,4 @@ typedef struct {
 #define GVP11_DMAC_INT_ENABLE   (1<<3)
 #define GVP11_DMAC_DIR_WRITE    (1<<4)
 
-#endif /* else def HOSTS_C */
-
 #endif /* GVP11_H */
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index 6a6661c35b2f..82ea4a8226b0 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -567,7 +567,8 @@ static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd,
 static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
 {
         struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
-        struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
+        struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
+        struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
         dma_addr_t dma_addr = ipr_cmd->dma_addr;
 
         memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
@@ -576,19 +577,19 @@ static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
         ioarcb->ioadl_len = 0;
         ioarcb->read_ioadl_len = 0;
 
-        if (ipr_cmd->ioa_cfg->sis64)
+        if (ipr_cmd->ioa_cfg->sis64) {
                 ioarcb->u.sis64_addr_data.data_ioadl_addr =
                         cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
-        else {
+                ioasa64->u.gata.status = 0;
+        } else {
                 ioarcb->write_ioadl_addr =
                         cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
                 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
+                ioasa->u.gata.status = 0;
         }
 
-        ioasa->ioasc = 0;
-        ioasa->residual_data_len = 0;
-        ioasa->u.gata.status = 0;
-
+        ioasa->hdr.ioasc = 0;
+        ioasa->hdr.residual_data_len = 0;
         ipr_cmd->scsi_cmd = NULL;
         ipr_cmd->qc = NULL;
         ipr_cmd->sense_buffer[0] = 0;
@@ -768,8 +769,8 @@ static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg)
         list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) {
                 list_del(&ipr_cmd->queue);
 
-                ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET);
-                ipr_cmd->ioasa.ilid = cpu_to_be32(IPR_DRIVER_ILID);
+                ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET);
+                ipr_cmd->s.ioasa.hdr.ilid = cpu_to_be32(IPR_DRIVER_ILID);
 
                 if (ipr_cmd->scsi_cmd)
                         ipr_cmd->done = ipr_scsi_eh_done;
@@ -1040,7 +1041,7 @@ static void ipr_init_res_entry(struct ipr_resource_entry *res,
                 proto = cfgtew->u.cfgte64->proto;
                 res->res_flags = cfgtew->u.cfgte64->res_flags;
                 res->qmodel = IPR_QUEUEING_MODEL64(res);
-                res->type = cfgtew->u.cfgte64->res_type & 0x0f;
+                res->type = cfgtew->u.cfgte64->res_type;
 
                 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
                         sizeof(res->res_path));
@@ -1319,7 +1320,7 @@ static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
 {
         struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
         struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
-        u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
+        u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
 
         list_del(&hostrcb->queue);
         list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
@@ -2354,7 +2355,7 @@ static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
 {
         struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
         struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
-        u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
+        u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
         u32 fd_ioasc;
 
         if (ioa_cfg->sis64)
@@ -4509,11 +4510,16 @@ static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
         }
 
         ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
-        ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
+        ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
         list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
-        if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET)
-                memcpy(&res->sata_port->ioasa, &ipr_cmd->ioasa.u.gata,
-                       sizeof(struct ipr_ioasa_gata));
+        if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) {
+                if (ipr_cmd->ioa_cfg->sis64)
+                        memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
+                               sizeof(struct ipr_ioasa_gata));
+                else
+                        memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
+                               sizeof(struct ipr_ioasa_gata));
+        }
 
         LEAVE;
         return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0);
@@ -4768,7 +4774,7 @@ static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd)
         scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
                     scsi_cmd->cmnd[0]);
         ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
-        ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
+        ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
 
         /*
          * If the abort task timed out and we sent a bus reset, we will get
@@ -4812,15 +4818,39 @@ static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd)
 /**
  * ipr_handle_other_interrupt - Handle "other" interrupts
  * @ioa_cfg:    ioa config struct
- * @int_reg:    interrupt register
  *
  * Return value:
  *      IRQ_NONE / IRQ_HANDLED
  **/
-static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
-                                              volatile u32 int_reg)
+static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg)
 {
         irqreturn_t rc = IRQ_HANDLED;
+        volatile u32 int_reg, int_mask_reg;
+
+        int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
+        int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32) & ~int_mask_reg;
+
+        /* If an interrupt on the adapter did not occur, ignore it.
+         * Or in the case of SIS 64, check for a stage change interrupt.
+         */
+        if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) {
+                if (ioa_cfg->sis64) {
+                        int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
+                        int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
+                        if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
+
+                                /* clear stage change */
+                                writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
+                                int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
+                                list_del(&ioa_cfg->reset_cmd->queue);
+                                del_timer(&ioa_cfg->reset_cmd->timer);
+                                ipr_reset_ioa_job(ioa_cfg->reset_cmd);
+                                return IRQ_HANDLED;
+                        }
+                }
+
+                return IRQ_NONE;
+        }
 
         if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
                 /* Mask the interrupt */
@@ -4881,7 +4911,7 @@ static irqreturn_t ipr_isr(int irq, void *devp)
 {
         struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
         unsigned long lock_flags = 0;
-        volatile u32 int_reg, int_mask_reg;
+        volatile u32 int_reg;
         u32 ioasc;
         u16 cmd_index;
         int num_hrrq = 0;
@@ -4896,33 +4926,6 @@ static irqreturn_t ipr_isr(int irq, void *devp)
                 return IRQ_NONE;
         }
 
-        int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
-        int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32) & ~int_mask_reg;
-
-        /* If an interrupt on the adapter did not occur, ignore it.
-         * Or in the case of SIS 64, check for a stage change interrupt.
-         */
-        if (unlikely((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0)) {
-                if (ioa_cfg->sis64) {
-                        int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
-                        int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
-                        if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
-
-                                /* clear stage change */
-                                writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
-                                int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
-                                list_del(&ioa_cfg->reset_cmd->queue);
-                                del_timer(&ioa_cfg->reset_cmd->timer);
-                                ipr_reset_ioa_job(ioa_cfg->reset_cmd);
-                                spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
-                                return IRQ_HANDLED;
-                        }
-                }
-
-                spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
-                return IRQ_NONE;
-        }
-
         while (1) {
                 ipr_cmd = NULL;
 
@@ -4940,7 +4943,7 @@ static irqreturn_t ipr_isr(int irq, void *devp)
 
                         ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
 
-                        ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
+                        ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
 
                         ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
 
@@ -4962,7 +4965,7 @@ static irqreturn_t ipr_isr(int irq, void *devp)
                         /* Clear the PCI interrupt */
                         do {
                                 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
-                                int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32) & ~int_mask_reg;
+                                int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
                         } while (int_reg & IPR_PCII_HRRQ_UPDATED &&
                                         num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
 
@@ -4977,7 +4980,7 @@ static irqreturn_t ipr_isr(int irq, void *devp)
         }
 
         if (unlikely(rc == IRQ_NONE))
-                rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
+                rc = ipr_handle_other_interrupt(ioa_cfg);
 
         spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
         return rc;
@@ -5014,6 +5017,10 @@ static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
 
         ipr_cmd->dma_use_sg = nseg;
 
+        ioarcb->data_transfer_length = cpu_to_be32(length);
+        ioarcb->ioadl_len =
+                cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
+
         if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
                 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
                 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
@@ -5135,7 +5142,7 @@ static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
         struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
         struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
         struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
-        u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
+        u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
 
         if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
                 scsi_cmd->result |= (DID_ERROR << 16);
@@ -5166,7 +5173,7 @@ static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
 static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
 {
         struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
-        struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
+        struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
         dma_addr_t dma_addr = ipr_cmd->dma_addr;
 
         memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
@@ -5174,8 +5181,8 @@ static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
         ioarcb->read_data_transfer_length = 0;
         ioarcb->ioadl_len = 0;
         ioarcb->read_ioadl_len = 0;
-        ioasa->ioasc = 0;
-        ioasa->residual_data_len = 0;
+        ioasa->hdr.ioasc = 0;
+        ioasa->hdr.residual_data_len = 0;
 
         if (ipr_cmd->ioa_cfg->sis64)
                 ioarcb->u.sis64_addr_data.data_ioadl_addr =
@@ -5200,7 +5207,7 @@ static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
 static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
 {
         struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
-        u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
+        u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
 
         if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
                 ipr_erp_done(ipr_cmd);
@@ -5277,12 +5284,12 @@ static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
         int i;
         u16 data_len;
         u32 ioasc, fd_ioasc;
-        struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
+        struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
         __be32 *ioasa_data = (__be32 *)ioasa;
         int error_index;
 
-        ioasc = be32_to_cpu(ioasa->ioasc) & IPR_IOASC_IOASC_MASK;
-        fd_ioasc = be32_to_cpu(ioasa->fd_ioasc) & IPR_IOASC_IOASC_MASK;
+        ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK;
+        fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK;
 
         if (0 == ioasc)
                 return;
@@ -5297,7 +5304,7 @@ static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
 
         if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
                 /* Don't log an error if the IOA already logged one */
-                if (ioasa->ilid != 0)
+                if (ioasa->hdr.ilid != 0)
                         return;
 
                 if (!ipr_is_gscsi(res))
@@ -5309,10 +5316,11 @@ static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
 
         ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
 
-        if (sizeof(struct ipr_ioasa) < be16_to_cpu(ioasa->ret_stat_len))
+        data_len = be16_to_cpu(ioasa->hdr.ret_stat_len);
+        if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len)
+                data_len = sizeof(struct ipr_ioasa64);
+        else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len)
                 data_len = sizeof(struct ipr_ioasa);
-        else
-                data_len = be16_to_cpu(ioasa->ret_stat_len);
 
         ipr_err("IOASA Dump:\n");
 
@@ -5338,8 +5346,8 @@ static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
         u32 failing_lba;
         u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
         struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
-        struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
-        u32 ioasc = be32_to_cpu(ioasa->ioasc);
+        struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
+        u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc);
 
         memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
 
@@ -5382,7 +5390,7 @@ static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
 
                 /* Illegal request */
                 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
-                    (be32_to_cpu(ioasa->ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
+                    (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
                         sense_buf[7] = 10;      /* additional length */
 
                         /* IOARCB was in error */
@@ -5393,10 +5401,10 @@ static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
 
                         sense_buf[16] =
                             ((IPR_FIELD_POINTER_MASK &
-                              be32_to_cpu(ioasa->ioasc_specific)) >> 8) & 0xff;
+                              be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff;
                         sense_buf[17] =
                             (IPR_FIELD_POINTER_MASK &
-                             be32_to_cpu(ioasa->ioasc_specific)) & 0xff;
+                             be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff;
                 } else {
                         if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
                                 if (ipr_is_vset_device(res))
@@ -5428,14 +5436,20 @@ static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
  **/
 static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
 {
-        struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
+        struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
+        struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
 
-        if ((be32_to_cpu(ioasa->ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
+        if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
                 return 0;
 
-        memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
-               min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
-                   SCSI_SENSE_BUFFERSIZE));
+        if (ipr_cmd->ioa_cfg->sis64)
+                memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data,
+                       min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len),
+                           SCSI_SENSE_BUFFERSIZE));
+        else
+                memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
+                       min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
+                           SCSI_SENSE_BUFFERSIZE));
         return 1;
 }
 
@@ -5455,7 +5469,7 @@ static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
 {
         struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
         struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
-        u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
+        u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
         u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
 
         if (!res) {
@@ -5547,9 +5561,9 @@ static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
 {
         struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
         struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
-        u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
+        u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
 
-        scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->ioasa.residual_data_len));
+        scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
 
         if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
                 scsi_dma_unmap(ipr_cmd->scsi_cmd);
@@ -5839,19 +5853,23 @@ static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
         struct ata_queued_cmd *qc = ipr_cmd->qc;
         struct ipr_sata_port *sata_port = qc->ap->private_data;
         struct ipr_resource_entry *res = sata_port->res;
-        u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
+        u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
 
-        memcpy(&sata_port->ioasa, &ipr_cmd->ioasa.u.gata,
-               sizeof(struct ipr_ioasa_gata));
+        if (ipr_cmd->ioa_cfg->sis64)
+                memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
+                       sizeof(struct ipr_ioasa_gata));
+        else
+                memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
+                       sizeof(struct ipr_ioasa_gata));
         ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
 
-        if (be32_to_cpu(ipr_cmd->ioasa.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
+        if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
                 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target);
 
         if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
-                qc->err_mask |= __ac_err_mask(ipr_cmd->ioasa.u.gata.status);
+                qc->err_mask |= __ac_err_mask(sata_port->ioasa.status);
         else
-                qc->err_mask |= ac_err_mask(ipr_cmd->ioasa.u.gata.status);
+                qc->err_mask |= ac_err_mask(sata_port->ioasa.status);
         list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
         ata_qc_complete(qc);
 }
@@ -6520,7 +6538,7 @@ static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
 static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
 {
         struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
-        u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
+        u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
 
         dev_err(&ioa_cfg->pdev->dev,
                 "0x%02X failed with IOASC: 0x%08X\n",
@@ -6544,7 +6562,7 @@ static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
 static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
 {
         struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
-        u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
+        u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
 
         if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
                 ipr_cmd->job_step = ipr_set_supported_devs;
@@ -6634,7 +6652,7 @@ static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
  **/
 static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
 {
-        u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
+        u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
 
         if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
                 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
@@ -6706,7 +6724,7 @@ static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
                 list_move_tail(&res->queue, &old_res);
 
         if (ioa_cfg->sis64)
-                entries = ioa_cfg->u.cfg_table64->hdr64.num_entries;
+                entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries);
         else
                 entries = ioa_cfg->u.cfg_table->hdr.num_entries;
 
@@ -6792,6 +6810,7 @@ static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
         ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
 
         ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
+        ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff;
         ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff;
         ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff;
 
@@ -7122,7 +7141,9 @@ static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
         ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time);
 
         /* sanity check the stage_time value */
-        if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME)
+        if (stage_time == 0)
+                stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME;
+        else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME)
                 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME;
         else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT)
                 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT;
@@ -7165,13 +7186,14 @@ static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
 {
         struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
         volatile u32 int_reg;
+        volatile u64 maskval;
 
         ENTER;
         ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
         ipr_init_ioa_mem(ioa_cfg);
 
         ioa_cfg->allow_interrupts = 1;
-        int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
+        int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
 
         if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
                 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
@@ -7183,9 +7205,12 @@ static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
         /* Enable destructive diagnostics on IOA */
         writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32);
 
-        writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32);
-        if (ioa_cfg->sis64)
-                writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_mask_reg);
+        if (ioa_cfg->sis64) {
+                maskval = IPR_PCII_IPL_STAGE_CHANGE;
+                maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS;
+                writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg);
+        } else
+                writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32);
 
         int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
 
@@ -7332,12 +7357,12 @@ static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
         rc = pci_restore_state(ioa_cfg->pdev);
 
         if (rc != PCIBIOS_SUCCESSFUL) {
-                ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
+                ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
                 return IPR_RC_JOB_CONTINUE;
         }
 
         if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
-                ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
+                ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
                 return IPR_RC_JOB_CONTINUE;
         }
 
@@ -7364,7 +7389,7 @@ static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
                 }
         }
 
-        ENTER;
+        LEAVE;
         return IPR_RC_JOB_CONTINUE;
 }
 
@@ -7406,7 +7431,7 @@ static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
 
         if (rc != PCIBIOS_SUCCESSFUL) {
                 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
-                ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
+                ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
                 rc = IPR_RC_JOB_CONTINUE;
         } else {
                 ipr_cmd->job_step = ipr_reset_bist_done;
@@ -7665,7 +7690,7 @@ static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
         struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
 
         do {
-                ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
+                ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
 
                 if (ioa_cfg->reset_cmd != ipr_cmd) {
                         /*
@@ -8048,13 +8073,13 @@ static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
                         ioarcb->u.sis64_addr_data.data_ioadl_addr =
                                 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
                         ioarcb->u.sis64_addr_data.ioasa_host_pci_addr =
-                                cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, ioasa));
+                                cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64));
                 } else {
                         ioarcb->write_ioadl_addr =
                                 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
                         ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
                         ioarcb->ioasa_host_pci_addr =
-                                cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioasa));
+                                cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa));
                 }
                 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
                 ipr_cmd->cmd_index = i;
diff --git a/drivers/scsi/ipr.h b/drivers/scsi/ipr.h
index 4c267b5e0b96..9ecd2259eb39 100644
--- a/drivers/scsi/ipr.h
+++ b/drivers/scsi/ipr.h
@@ -244,6 +244,7 @@
 #define IPR_RUNTIME_RESET                               0x40000000
 
 #define IPR_IPL_INIT_MIN_STAGE_TIME                     5
+#define IPR_IPL_INIT_DEFAULT_STAGE_TIME                 15
 #define IPR_IPL_INIT_STAGE_UNKNOWN                      0x0
 #define IPR_IPL_INIT_STAGE_TRANSOP                      0xB0000000
 #define IPR_IPL_INIT_STAGE_MASK                         0xff000000
@@ -613,7 +614,7 @@ struct ipr_auto_sense {
         __be32 data[SCSI_SENSE_BUFFERSIZE/sizeof(__be32)];
 };
 
-struct ipr_ioasa {
+struct ipr_ioasa_hdr {
         __be32 ioasc;
 #define IPR_IOASC_SENSE_KEY(ioasc) ((ioasc) >> 24)
 #define IPR_IOASC_SENSE_CODE(ioasc) (((ioasc) & 0x00ff0000) >> 16)
@@ -645,6 +646,25 @@ struct ipr_ioasa {
 #define IPR_FIELD_POINTER_VALID         (0x80000000 >> 8)
 #define IPR_FIELD_POINTER_MASK          0x0000ffff
 
+}__attribute__((packed, aligned (4)));
+
+struct ipr_ioasa {
+        struct ipr_ioasa_hdr hdr;
+
+        union {
+                struct ipr_ioasa_vset vset;
+                struct ipr_ioasa_af_dasd dasd;
+                struct ipr_ioasa_gpdd gpdd;
+                struct ipr_ioasa_gata gata;
+        } u;
+
+        struct ipr_auto_sense auto_sense;
+}__attribute__((packed, aligned (4)));
+
+struct ipr_ioasa64 {
+        struct ipr_ioasa_hdr hdr;
+        u8 fd_res_path[8];
+
         union {
                 struct ipr_ioasa_vset vset;
                 struct ipr_ioasa_af_dasd dasd;
@@ -804,7 +824,7 @@ struct ipr_hostrcb_array_data_entry_enhanced {
 }__attribute__((packed, aligned (4)));
 
 struct ipr_hostrcb_type_ff_error {
-        __be32 ioa_data[502];
+        __be32 ioa_data[758];
 }__attribute__((packed, aligned (4)));
 
 struct ipr_hostrcb_type_01_error {
@@ -1181,7 +1201,7 @@ struct ipr_resource_entry {
         u8 flags;
         __be16 res_flags;
 
-        __be32 type;
+        u8 type;
 
         u8 qmodel;
         struct ipr_std_inq_data std_inq_data;
@@ -1464,7 +1484,10 @@ struct ipr_cmnd {
                 struct ipr_ioadl64_desc ioadl64[IPR_NUM_IOADL_ENTRIES];
                 struct ipr_ata64_ioadl ata_ioadl;
         } i;
-        struct ipr_ioasa ioasa;
+        union {
+                struct ipr_ioasa ioasa;
+                struct ipr_ioasa64 ioasa64;
+        } s;
         struct list_head queue;
         struct scsi_cmnd *scsi_cmd;
         struct ata_queued_cmd *qc;
diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c
index bf55d3057413..fec47de72535 100644
--- a/drivers/scsi/iscsi_tcp.c
+++ b/drivers/scsi/iscsi_tcp.c
@@ -601,10 +601,8 @@ static void iscsi_sw_tcp_conn_stop(struct iscsi_cls_conn *cls_conn, int flag)
         set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_rx);
         write_unlock_bh(&tcp_sw_conn->sock->sk->sk_callback_lock);
 
-        if (sk_sleep(sock->sk)) {
-                sock->sk->sk_err = EIO;
-                wake_up_interruptible(sk_sleep(sock->sk));
-        }
+        sock->sk->sk_err = EIO;
+        wake_up_interruptible(sk_sleep(sock->sk));
 
         iscsi_conn_stop(cls_conn, flag);
         iscsi_sw_tcp_release_conn(conn);
diff --git a/drivers/scsi/mvme147.c b/drivers/scsi/mvme147.c
index 716d1785cda7..c29d0dbb9660 100644
--- a/drivers/scsi/mvme147.c
+++ b/drivers/scsi/mvme147.c
@@ -16,12 +16,12 @@
 #include <linux/stat.h>
 
 
-static struct Scsi_Host *mvme147_host = NULL;
-
-static irqreturn_t mvme147_intr(int irq, void *dummy)
+static irqreturn_t mvme147_intr(int irq, void *data)
 {
+        struct Scsi_Host *instance = data;
+
         if (irq == MVME147_IRQ_SCSI_PORT)
-                wd33c93_intr(mvme147_host);
+                wd33c93_intr(instance);
         else
                 m147_pcc->dma_intr = 0x89;      /* Ack and enable ints */
         return IRQ_HANDLED;
@@ -29,7 +29,8 @@ static irqreturn_t mvme147_intr(int irq, void *dummy)
 
 static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
 {
-        struct WD33C93_hostdata *hdata = shost_priv(mvme147_host);
+        struct Scsi_Host *instance = cmd->device->host;
+        struct WD33C93_hostdata *hdata = shost_priv(instance);
         unsigned char flags = 0x01;
         unsigned long addr = virt_to_bus(cmd->SCp.ptr);
 
@@ -66,6 +67,7 @@ static void dma_stop(struct Scsi_Host *instance, struct scsi_cmnd *SCpnt,
 int mvme147_detect(struct scsi_host_template *tpnt)
 {
         static unsigned char called = 0;
+        struct Scsi_Host *instance;
         wd33c93_regs regs;
         struct WD33C93_hostdata *hdata;
 
@@ -76,25 +78,25 @@ int mvme147_detect(struct scsi_host_template *tpnt)
         tpnt->proc_name = "MVME147";
         tpnt->proc_info = &wd33c93_proc_info;
 
-        mvme147_host = scsi_register(tpnt, sizeof(struct WD33C93_hostdata));
-        if (!mvme147_host)
+        instance = scsi_register(tpnt, sizeof(struct WD33C93_hostdata));
+        if (!instance)
                 goto err_out;
 
-        mvme147_host->base = 0xfffe4000;
-        mvme147_host->irq = MVME147_IRQ_SCSI_PORT;
+        instance->base = 0xfffe4000;
+        instance->irq = MVME147_IRQ_SCSI_PORT;
         regs.SASR = (volatile unsigned char *)0xfffe4000;
         regs.SCMD = (volatile unsigned char *)0xfffe4001;
-        hdata = shost_priv(mvme147_host);
+        hdata = shost_priv(instance);
         hdata->no_sync = 0xff;
         hdata->fast = 0;
         hdata->dma_mode = CTRL_DMA;
-        wd33c93_init(mvme147_host, regs, dma_setup, dma_stop, WD33C93_FS_8_10);
+        wd33c93_init(instance, regs, dma_setup, dma_stop, WD33C93_FS_8_10);
 
         if (request_irq(MVME147_IRQ_SCSI_PORT, mvme147_intr, 0,
-                        "MVME147 SCSI PORT", mvme147_intr))
+                        "MVME147 SCSI PORT", instance))
                 goto err_unregister;
         if (request_irq(MVME147_IRQ_SCSI_DMA, mvme147_intr, 0,
-                        "MVME147 SCSI DMA", mvme147_intr))
+                        "MVME147 SCSI DMA", instance))
                 goto err_free_irq;
 #if 0   /* Disabled; causes problems booting */
         m147_pcc->scsi_interrupt = 0x10;        /* Assert SCSI bus reset */
@@ -113,7 +115,7 @@ int mvme147_detect(struct scsi_host_template *tpnt)
 err_free_irq:
         free_irq(MVME147_IRQ_SCSI_PORT, mvme147_intr);
 err_unregister:
-        scsi_unregister(mvme147_host);
+        scsi_unregister(instance);
 err_out:
         return 0;
 }
@@ -132,9 +134,6 @@ static int mvme147_bus_reset(struct scsi_cmnd *cmd)
         return SUCCESS;
 }
 
-#define HOSTS_C
-
-#include "mvme147.h"
 
 static struct scsi_host_template driver_template = {
         .proc_name              = "MVME147",
diff --git a/drivers/scsi/osst.c b/drivers/scsi/osst.c
index 8dbf1c3afb7b..d64b7178fa08 100644
--- a/drivers/scsi/osst.c
+++ b/drivers/scsi/osst.c
@@ -3587,7 +3587,7 @@ if (SRpnt) printk(KERN_ERR "%s:A: Not supposed to have SRpnt at line %d\n", name
                 if (i == (-ENOSPC)) {
                         transfer = STp->buffer->writing;        /* FIXME -- check this logic */
                         if (transfer <= do_count) {
-                                filp->f_pos += do_count - transfer;
+                                *ppos += do_count - transfer;
                                 count -= do_count - transfer;
                                 if (STps->drv_block >= 0) {
                                         STps->drv_block += (do_count - transfer) / STp->block_size;
@@ -3625,7 +3625,7 @@ if (SRpnt) printk(KERN_ERR "%s:A: Not supposed to have SRpnt at line %d\n", name
                         goto out;
                 }
 
-                filp->f_pos += do_count;
+                *ppos += do_count;
                 b_point += do_count;
                 count -= do_count;
                 if (STps->drv_block >= 0) {
@@ -3647,7 +3647,7 @@ if (SRpnt) printk(KERN_ERR "%s:A: Not supposed to have SRpnt at line %d\n", name
                 if (STps->drv_block >= 0) {
                         STps->drv_block += blks;
                 }
-                filp->f_pos += count;
+                *ppos += count;
                 count = 0;
         }
 
@@ -3823,7 +3823,7 @@ static ssize_t osst_read(struct file * filp, char __user * buf, size_t count, lo
                         }
                         STp->logical_blk_num += transfer / STp->block_size;
                         STps->drv_block      += transfer / STp->block_size;
-                        filp->f_pos          += transfer;
+                        *ppos          += transfer;
                         buf                  += transfer;
                         total                += transfer;
                 }
@@ -5626,6 +5626,7 @@ static const struct file_operations osst_fops = {
         .open =         os_scsi_tape_open,
         .flush =        os_scsi_tape_flush,
         .release =      os_scsi_tape_close,
+        .llseek =       noop_llseek,
 };
 
 static int osst_supports(struct scsi_device * SDp)
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index 9798c2c06b93..1c027a97d8b9 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -492,19 +492,20 @@ void scsi_target_reap(struct scsi_target *starget)
         struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
         unsigned long flags;
         enum scsi_target_state state;
-        int empty;
+        int empty = 0;
 
         spin_lock_irqsave(shost->host_lock, flags);
         state = starget->state;
-        empty = --starget->reap_ref == 0 &&
-                list_empty(&starget->devices) ? 1 : 0;
+        if (--starget->reap_ref == 0 && list_empty(&starget->devices)) {
+                empty = 1;
+                starget->state = STARGET_DEL;
+        }
         spin_unlock_irqrestore(shost->host_lock, flags);
 
         if (!empty)
                 return;
 
         BUG_ON(state == STARGET_DEL);
-        starget->state = STARGET_DEL;
         if (state == STARGET_CREATED)
                 scsi_target_destroy(starget);
         else
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index 3ea1a713ef25..24211d0efa6d 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -3962,6 +3962,7 @@ static const struct file_operations st_fops =
         .open =         st_open,
         .flush =        st_flush,
         .release =      st_release,
+        .llseek =       noop_llseek,
 };
 
 static int st_probe(struct device *dev)
diff --git a/drivers/sfi/sfi_acpi.c b/drivers/sfi/sfi_acpi.c
index 34aba30eb84b..f5b4ca581541 100644
--- a/drivers/sfi/sfi_acpi.c
+++ b/drivers/sfi/sfi_acpi.c
@@ -173,3 +173,44 @@ int sfi_acpi_table_parse(char *signature, char *oem_id, char *oem_table_id,
         sfi_acpi_put_table(table);
         return ret;
 }
+
+static ssize_t sfi_acpi_table_show(struct file *filp, struct kobject *kobj,
+                               struct bin_attribute *bin_attr, char *buf,
+                               loff_t offset, size_t count)
+{
+        struct sfi_table_attr *tbl_attr =
+            container_of(bin_attr, struct sfi_table_attr, attr);
+        struct acpi_table_header *th = NULL;
+        struct sfi_table_key key;
+        ssize_t cnt;
+
+        key.sig = tbl_attr->name;
+        key.oem_id = NULL;
+        key.oem_table_id = NULL;
+
+        th = sfi_acpi_get_table(&key);
+        if (!th)
+                return 0;
+
+        cnt =  memory_read_from_buffer(buf, count, &offset,
+                                        th, th->length);
+        sfi_acpi_put_table(th);
+
+        return cnt;
+}
+
+
+void __init sfi_acpi_sysfs_init(void)
+{
+        u32 tbl_cnt, i;
+        struct sfi_table_attr *tbl_attr;
+
+        tbl_cnt = XSDT_GET_NUM_ENTRIES(xsdt_va, u64);
+        for (i = 0; i < tbl_cnt; i++) {
+                tbl_attr =
+                        sfi_sysfs_install_table(xsdt_va->table_offset_entry[i]);
+                tbl_attr->attr.read = sfi_acpi_table_show;
+        }
+
+        return;
+}
diff --git a/drivers/sfi/sfi_core.c b/drivers/sfi/sfi_core.c
index b204a0929139..005195958647 100644
--- a/drivers/sfi/sfi_core.c
+++ b/drivers/sfi/sfi_core.c
@@ -67,6 +67,7 @@
 #include <linux/acpi.h>
 #include <linux/init.h>
 #include <linux/sfi.h>
+#include <linux/slab.h>
 
 #include "sfi_core.h"
 
@@ -382,6 +383,102 @@ static __init int sfi_find_syst(void)
         return -1;
 }
 
+static struct kobject *sfi_kobj;
+static struct kobject *tables_kobj;
+
+static ssize_t sfi_table_show(struct file *filp, struct kobject *kobj,
+                               struct bin_attribute *bin_attr, char *buf,
+                               loff_t offset, size_t count)
+{
+        struct sfi_table_attr *tbl_attr =
+            container_of(bin_attr, struct sfi_table_attr, attr);
+        struct sfi_table_header *th = NULL;
+        struct sfi_table_key key;
+        ssize_t cnt;
+
+        key.sig = tbl_attr->name;
+        key.oem_id = NULL;
+        key.oem_table_id = NULL;
+
+        if (strncmp(SFI_SIG_SYST, tbl_attr->name, SFI_SIGNATURE_SIZE)) {
+                th = sfi_get_table(&key);
+                if (!th)
+                        return 0;
+
+                cnt =  memory_read_from_buffer(buf, count, &offset,
+                                                th, th->len);
+                sfi_put_table(th);
+        } else
+                cnt =  memory_read_from_buffer(buf, count, &offset,
+                                        syst_va, syst_va->header.len);
+
+        return cnt;
+}
+
+struct sfi_table_attr __init *sfi_sysfs_install_table(u64 pa)
+{
+        struct sfi_table_attr *tbl_attr;
+        struct sfi_table_header *th;
+        int ret;
+
+        tbl_attr = kzalloc(sizeof(struct sfi_table_attr), GFP_KERNEL);
+        if (!tbl_attr)
+                return NULL;
+
+        th = sfi_map_table(pa);
+        if (!th || !th->sig[0]) {
+                kfree(tbl_attr);
+                return NULL;
+        }
+
+        sysfs_attr_init(&tbl_attr->attr.attr);
+        memcpy(tbl_attr->name, th->sig, SFI_SIGNATURE_SIZE);
+
+        tbl_attr->attr.size = 0;
+        tbl_attr->attr.read = sfi_table_show;
+        tbl_attr->attr.attr.name = tbl_attr->name;
+        tbl_attr->attr.attr.mode = 0400;
+
+        ret = sysfs_create_bin_file(tables_kobj,
+                                  &tbl_attr->attr);
+        if (ret)
+                kfree(tbl_attr);
+
+        sfi_unmap_table(th);
+        return tbl_attr;
+}
+
+static int __init sfi_sysfs_init(void)
+{
+        int tbl_cnt, i;
+
+        if (sfi_disabled)
+                return 0;
+
+        sfi_kobj = kobject_create_and_add("sfi", firmware_kobj);
+        if (!sfi_kobj)
+                return 0;
+
+        tables_kobj = kobject_create_and_add("tables", sfi_kobj);
+        if (!tables_kobj) {
+                kobject_put(sfi_kobj);
+                return 0;
+        }
+
+        sfi_sysfs_install_table(syst_pa);
+
+        tbl_cnt = SFI_GET_NUM_ENTRIES(syst_va, u64);
+
+        for (i = 0; i < tbl_cnt; i++)
+                sfi_sysfs_install_table(syst_va->pentry[i]);
+
+        sfi_acpi_sysfs_init();
+        kobject_uevent(sfi_kobj, KOBJ_ADD);
+        kobject_uevent(tables_kobj, KOBJ_ADD);
+        pr_info("SFI sysfs interfaces init success\n");
+        return 0;
+}
+
 void __init sfi_init(void)
 {
         if (!acpi_disabled)
@@ -390,7 +487,7 @@ void __init sfi_init(void)
         if (sfi_disabled)
                 return;
 
-        pr_info("Simple Firmware Interface v0.7 http://simplefirmware.org\n");
+        pr_info("Simple Firmware Interface v0.81 http://simplefirmware.org\n");
 
         if (sfi_find_syst() || sfi_parse_syst() || sfi_platform_init())
                 disable_sfi();
@@ -414,3 +511,9 @@ void __init sfi_init_late(void)
 
         sfi_acpi_init();
 }
+
+/*
+ * The reason we put it here becasue we need wait till the /sys/firmware
+ * is setup, then our interface can be registered in /sys/firmware/sfi
+ */
+core_initcall(sfi_sysfs_init);
diff --git a/drivers/sfi/sfi_core.h b/drivers/sfi/sfi_core.h
index da82d39e104d..b7cf220d44ec 100644
--- a/drivers/sfi/sfi_core.h
+++ b/drivers/sfi/sfi_core.h
@@ -61,6 +61,12 @@ struct sfi_table_key{
         char    *oem_table_id;
 };
 
+/* sysfs interface */
+struct sfi_table_attr {
+        struct bin_attribute attr;
+        char name[8];
+};
+
 #define SFI_ANY_KEY { .sig = NULL, .oem_id = NULL, .oem_table_id = NULL }
 
 extern int __init sfi_acpi_init(void);
@@ -68,3 +74,5 @@ extern  struct sfi_table_header *sfi_check_table(u64 paddr,
                                         struct sfi_table_key *key);
 struct sfi_table_header *sfi_get_table(struct sfi_table_key *key);
 extern void sfi_put_table(struct sfi_table_header *table);
+extern struct sfi_table_attr __init *sfi_sysfs_install_table(u64 pa);
+extern void __init sfi_acpi_sysfs_init(void);
diff --git a/drivers/staging/go7007/saa7134-go7007.c b/drivers/staging/go7007/saa7134-go7007.c
index 49f0d31c118a..cf7c34a99459 100644
--- a/drivers/staging/go7007/saa7134-go7007.c
+++ b/drivers/staging/go7007/saa7134-go7007.c
@@ -242,13 +242,13 @@ static void saa7134_go7007_irq_ts_done(struct saa7134_dev *dev,
                 printk(KERN_DEBUG "saa7134-go7007: irq: lost %ld\n",
                                 (status >> 16) & 0x0f);
         if (status & 0x100000) {
-                dma_sync_single(&dev->pci->dev,
-                                saa->bottom_dma, PAGE_SIZE, DMA_FROM_DEVICE);
+                dma_sync_single_for_cpu(&dev->pci->dev,
+                                        saa->bottom_dma, PAGE_SIZE, DMA_FROM_DEVICE);
                 go7007_parse_video_stream(go, saa->bottom, PAGE_SIZE);
                 saa_writel(SAA7134_RS_BA2(5), cpu_to_le32(saa->bottom_dma));
         } else {
-                dma_sync_single(&dev->pci->dev,
-                                saa->top_dma, PAGE_SIZE, DMA_FROM_DEVICE);
+                dma_sync_single_for_cpu(&dev->pci->dev,
+                                        saa->top_dma, PAGE_SIZE, DMA_FROM_DEVICE);
                 go7007_parse_video_stream(go, saa->top, PAGE_SIZE);
                 saa_writel(SAA7134_RS_BA1(5), cpu_to_le32(saa->top_dma));
         }
diff --git a/drivers/telephony/ixj.c b/drivers/telephony/ixj.c
index e89304c72568..b53deee25d74 100644
--- a/drivers/telephony/ixj.c
+++ b/drivers/telephony/ixj.c
@@ -5879,20 +5879,13 @@ out:
 static int ixj_build_filter_cadence(IXJ *j, IXJ_FILTER_CADENCE __user * cp)
 {
         IXJ_FILTER_CADENCE *lcp;
-        lcp = kmalloc(sizeof(IXJ_FILTER_CADENCE), GFP_KERNEL);
-        if (lcp == NULL) {
+        lcp = memdup_user(cp, sizeof(IXJ_FILTER_CADENCE));
+        if (IS_ERR(lcp)) {
                 if(ixjdebug & 0x0001) {
-                        printk(KERN_INFO "Could not allocate memory for cadence\n");
+                        printk(KERN_INFO "Could not allocate memory for cadence or could not copy cadence to kernel\n");
                 }
-                return -ENOMEM;
+                return PTR_ERR(lcp);
         }
-        if (copy_from_user(lcp, cp, sizeof(IXJ_FILTER_CADENCE))) {
-                if(ixjdebug & 0x0001) {
-                        printk(KERN_INFO "Could not copy cadence to kernel\n");
-                }
-                kfree(lcp);
-                return -EFAULT;
-        }
         if (lcp->filter > 5) {
                 if(ixjdebug & 0x0001) {
                         printk(KERN_INFO "Cadence out of range\n");
diff --git a/drivers/video/bf54x-lq043fb.c b/drivers/video/bf54x-lq043fb.c
index 23b2a8c0dbfc..b020ba7f1cf2 100644
--- a/drivers/video/bf54x-lq043fb.c
+++ b/drivers/video/bf54x-lq043fb.c
@@ -501,7 +501,9 @@ static irqreturn_t bfin_bf54x_irq_error(int irq, void *dev_id)
 
 static int __devinit bfin_bf54x_probe(struct platform_device *pdev)
 {
+#ifndef NO_BL_SUPPORT
         struct backlight_properties props;
+#endif
         struct bfin_bf54xfb_info *info;
         struct fb_info *fbinfo;
         int ret;
@@ -654,7 +656,8 @@ static int __devinit bfin_bf54x_probe(struct platform_device *pdev)
                 printk(KERN_ERR DRIVER_NAME
                         ": unable to register backlight.\n");
                 ret = -EINVAL;
-                goto out9;
+                unregister_framebuffer(fbinfo);
+                goto out8;
         }
 
         lcd_dev = lcd_device_register(DRIVER_NAME, &pdev->dev, NULL, &bfin_lcd_ops);
@@ -663,8 +666,6 @@ static int __devinit bfin_bf54x_probe(struct platform_device *pdev)
 
         return 0;
 
-out9:
-        unregister_framebuffer(fbinfo);
 out8:
         free_irq(info->irq, info);
 out7:
diff --git a/drivers/video/bfin-t350mcqb-fb.c b/drivers/video/bfin-t350mcqb-fb.c
index c2ec3dcd4e91..7a50272eaab9 100644
--- a/drivers/video/bfin-t350mcqb-fb.c
+++ b/drivers/video/bfin-t350mcqb-fb.c
@@ -420,7 +420,9 @@ static irqreturn_t bfin_t350mcqb_irq_error(int irq, void *dev_id)
 
 static int __devinit bfin_t350mcqb_probe(struct platform_device *pdev)
 {
+#ifndef NO_BL_SUPPORT
         struct backlight_properties props;
+#endif
         struct bfin_t350mcqbfb_info *info;
         struct fb_info *fbinfo;
         int ret;
@@ -550,7 +552,8 @@ static int __devinit bfin_t350mcqb_probe(struct platform_device *pdev)
                 printk(KERN_ERR DRIVER_NAME
                         ": unable to register backlight.\n");
                 ret = -EINVAL;
-                goto out9;
+                unregister_framebuffer(fbinfo);
+                goto out8;
         }
 
         lcd_dev = lcd_device_register(DRIVER_NAME, NULL, &bfin_lcd_ops);
@@ -559,8 +562,6 @@ static int __devinit bfin_t350mcqb_probe(struct platform_device *pdev)
 
         return 0;
 
-out9:
-        unregister_framebuffer(fbinfo);
 out8:
         free_irq(info->irq, info);
 out7:
diff --git a/drivers/video/s3fb.c b/drivers/video/s3fb.c
index d4471b4c0374..dce8c97b4333 100644
--- a/drivers/video/s3fb.c
+++ b/drivers/video/s3fb.c
@@ -71,7 +71,8 @@ static const char * const s3_names[] = {"S3 Unknown", "S3 Trio32", "S3 Trio64",
                         "S3 Trio64UV+", "S3 Trio64V2/DX", "S3 Trio64V2/GX",
                         "S3 Plato/PX", "S3 Aurora64VP", "S3 Virge",
                         "S3 Virge/VX", "S3 Virge/DX", "S3 Virge/GX",
-                        "S3 Virge/GX2", "S3 Virge/GX2P", "S3 Virge/GX2P"};
+                        "S3 Virge/GX2", "S3 Virge/GX2P", "S3 Virge/GX2P",
+                        "S3 Trio3D/1X", "S3 Trio3D/2X", "S3 Trio3D/2X"};
 
 #define CHIP_UNKNOWN            0x00
 #define CHIP_732_TRIO32         0x01
@@ -89,10 +90,14 @@ static const char * const s3_names[] = {"S3 Unknown", "S3 Trio32", "S3 Trio64",
 #define CHIP_356_VIRGE_GX2      0x0D
 #define CHIP_357_VIRGE_GX2P     0x0E
 #define CHIP_359_VIRGE_GX2P     0x0F
+#define CHIP_360_TRIO3D_1X      0x10
+#define CHIP_362_TRIO3D_2X      0x11
+#define CHIP_368_TRIO3D_2X      0x12
 
 #define CHIP_XXX_TRIO           0x80
 #define CHIP_XXX_TRIO64V2_DXGX  0x81
 #define CHIP_XXX_VIRGE_DXGX     0x82
+#define CHIP_36X_TRIO3D_1X_2X   0x83
 
 #define CHIP_UNDECIDED_FLAG     0x80
 #define CHIP_MASK               0xFF
@@ -324,6 +329,7 @@ static void s3fb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
 
 static void s3_set_pixclock(struct fb_info *info, u32 pixclock)
 {
+        struct s3fb_info *par = info->par;
         u16 m, n, r;
         u8 regval;
         int rv;
@@ -339,7 +345,13 @@ static void s3_set_pixclock(struct fb_info *info, u32 pixclock)
         vga_w(NULL, VGA_MIS_W, regval | VGA_MIS_ENB_PLL_LOAD);
 
         /* Set S3 clock registers */
-        vga_wseq(NULL, 0x12, ((n - 2) | (r << 5)));
+        if (par->chip == CHIP_360_TRIO3D_1X ||
+            par->chip == CHIP_362_TRIO3D_2X ||
+            par->chip == CHIP_368_TRIO3D_2X) {
+                vga_wseq(NULL, 0x12, (n - 2) | ((r & 3) << 6)); /* n and two bits of r */
+                vga_wseq(NULL, 0x29, r >> 2); /* remaining highest bit of r */
+        } else
+                vga_wseq(NULL, 0x12, (n - 2) | (r << 5));
         vga_wseq(NULL, 0x13, m - 2);
 
         udelay(1000);
@@ -456,7 +468,7 @@ static int s3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
 static int s3fb_set_par(struct fb_info *info)
 {
         struct s3fb_info *par = info->par;
-        u32 value, mode, hmul, offset_value, screen_size, multiplex;
+        u32 value, mode, hmul, offset_value, screen_size, multiplex, dbytes;
         u32 bpp = info->var.bits_per_pixel;
 
         if (bpp != 0) {
@@ -518,7 +530,7 @@ static int s3fb_set_par(struct fb_info *info)
         svga_wcrt_mask(0x33, 0x00, 0x08); /* no DDR ?   */
         svga_wcrt_mask(0x43, 0x00, 0x01); /* no DDR ?   */
 
-        svga_wcrt_mask(0x5D, 0x00, 0x28); // Clear strange HSlen bits
+        svga_wcrt_mask(0x5D, 0x00, 0x28); /* Clear strange HSlen bits */
 
 /*      svga_wcrt_mask(0x58, 0x03, 0x03); */
 
@@ -530,10 +542,14 @@ static int s3fb_set_par(struct fb_info *info)
         pr_debug("fb%d: offset register       : %d\n", info->node, offset_value);
         svga_wcrt_multi(s3_offset_regs, offset_value);
 
-        vga_wcrt(NULL, 0x54, 0x18); /* M parameter */
-        vga_wcrt(NULL, 0x60, 0xff); /* N parameter */
-        vga_wcrt(NULL, 0x61, 0xff); /* L parameter */
-        vga_wcrt(NULL, 0x62, 0xff); /* L parameter */
+        if (par->chip != CHIP_360_TRIO3D_1X &&
+            par->chip != CHIP_362_TRIO3D_2X &&
+            par->chip != CHIP_368_TRIO3D_2X) {
+                vga_wcrt(NULL, 0x54, 0x18); /* M parameter */
+                vga_wcrt(NULL, 0x60, 0xff); /* N parameter */
+                vga_wcrt(NULL, 0x61, 0xff); /* L parameter */
+                vga_wcrt(NULL, 0x62, 0xff); /* L parameter */
+        }
 
         vga_wcrt(NULL, 0x3A, 0x35);
         svga_wattr(0x33, 0x00);
@@ -570,6 +586,16 @@ static int s3fb_set_par(struct fb_info *info)
                 vga_wcrt(NULL, 0x66, 0x90);
         }
 
+        if (par->chip == CHIP_360_TRIO3D_1X ||
+            par->chip == CHIP_362_TRIO3D_2X ||
+            par->chip == CHIP_368_TRIO3D_2X) {
+                dbytes = info->var.xres * ((bpp+7)/8);
+                vga_wcrt(NULL, 0x91, (dbytes + 7) / 8);
+                vga_wcrt(NULL, 0x90, (((dbytes + 7) / 8) >> 8) | 0x80);
+
+                vga_wcrt(NULL, 0x66, 0x81);
+        }
+
         svga_wcrt_mask(0x31, 0x00, 0x40);
         multiplex = 0;
         hmul = 1;
@@ -615,11 +641,13 @@ static int s3fb_set_par(struct fb_info *info)
                 break;
         case 3:
                 pr_debug("fb%d: 8 bit pseudocolor\n", info->node);
-                if (info->var.pixclock > 20000) {
-                        svga_wcrt_mask(0x50, 0x00, 0x30);
+                svga_wcrt_mask(0x50, 0x00, 0x30);
+                if (info->var.pixclock > 20000 ||
+                    par->chip == CHIP_360_TRIO3D_1X ||
+                    par->chip == CHIP_362_TRIO3D_2X ||
+                    par->chip == CHIP_368_TRIO3D_2X)
                         svga_wcrt_mask(0x67, 0x00, 0xF0);
-                } else {
-                        svga_wcrt_mask(0x50, 0x00, 0x30);
+                else {
                         svga_wcrt_mask(0x67, 0x10, 0xF0);
                         multiplex = 1;
                 }
@@ -634,7 +662,10 @@ static int s3fb_set_par(struct fb_info *info)
                 } else {
                         svga_wcrt_mask(0x50, 0x10, 0x30);
                         svga_wcrt_mask(0x67, 0x30, 0xF0);
-                        hmul = 2;
+                        if (par->chip != CHIP_360_TRIO3D_1X &&
+                            par->chip != CHIP_362_TRIO3D_2X &&
+                            par->chip != CHIP_368_TRIO3D_2X)
+                                hmul = 2;
                 }
                 break;
         case 5:
@@ -647,7 +678,10 @@ static int s3fb_set_par(struct fb_info *info)
                 } else {
                         svga_wcrt_mask(0x50, 0x10, 0x30);
                         svga_wcrt_mask(0x67, 0x50, 0xF0);
-                        hmul = 2;
+                        if (par->chip != CHIP_360_TRIO3D_1X &&
+                            par->chip != CHIP_362_TRIO3D_2X &&
+                            par->chip != CHIP_368_TRIO3D_2X)
+                                hmul = 2;
                 }
                 break;
         case 6:
@@ -866,6 +900,17 @@ static int __devinit s3_identification(int chip)
                         return CHIP_385_VIRGE_GX;
         }
 
+        if (chip == CHIP_36X_TRIO3D_1X_2X) {
+                switch (vga_rcrt(NULL, 0x2f)) {
+                case 0x00:
+                        return CHIP_360_TRIO3D_1X;
+                case 0x01:
+                        return CHIP_362_TRIO3D_2X;
+                case 0x02:
+                        return CHIP_368_TRIO3D_2X;
+                }
+        }
+
         return CHIP_UNKNOWN;
 }
 
@@ -930,17 +975,32 @@ static int __devinit s3_pci_probe(struct pci_dev *dev, const struct pci_device_i
         vga_wcrt(NULL, 0x38, 0x48);
         vga_wcrt(NULL, 0x39, 0xA5);
 
-        /* Find how many physical memory there is on card */
-        /* 0x36 register is accessible even if other registers are locked */
-        regval = vga_rcrt(NULL, 0x36);
-        info->screen_size = s3_memsizes[regval >> 5] << 10;
-        info->fix.smem_len = info->screen_size;
-
+        /* Identify chip type */
         par->chip = id->driver_data & CHIP_MASK;
         par->rev = vga_rcrt(NULL, 0x2f);
         if (par->chip & CHIP_UNDECIDED_FLAG)
                 par->chip = s3_identification(par->chip);
 
+        /* Find how many physical memory there is on card */
+        /* 0x36 register is accessible even if other registers are locked */
+        regval = vga_rcrt(NULL, 0x36);
+        if (par->chip == CHIP_360_TRIO3D_1X ||
+            par->chip == CHIP_362_TRIO3D_2X ||
+            par->chip == CHIP_368_TRIO3D_2X) {
+                switch ((regval & 0xE0) >> 5) {
+                case 0: /* 8MB -- only 4MB usable for display */
+                case 1: /* 4MB with 32-bit bus */
+                case 2: /* 4MB */
+                        info->screen_size = 4 << 20;
+                        break;
+                case 6: /* 2MB */
+                        info->screen_size = 2 << 20;
+                        break;
+                }
+        } else
+                info->screen_size = s3_memsizes[regval >> 5] << 10;
+        info->fix.smem_len = info->screen_size;
+
         /* Find MCLK frequency */
         regval = vga_rseq(NULL, 0x10);
         par->mclk_freq = ((vga_rseq(NULL, 0x11) + 2) * 14318) / ((regval & 0x1F)  + 2);
@@ -1131,6 +1191,7 @@ static struct pci_device_id s3_devices[] __devinitdata = {
         {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8A10), .driver_data = CHIP_356_VIRGE_GX2},
         {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8A11), .driver_data = CHIP_357_VIRGE_GX2P},
         {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8A12), .driver_data = CHIP_359_VIRGE_GX2P},
+        {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8A13), .driver_data = CHIP_36X_TRIO3D_1X_2X},
 
         {0, 0, 0, 0, 0, 0, 0}
 };
diff --git a/drivers/video/via/viafbdev.c b/drivers/video/via/viafbdev.c
index 2bc40e682f95..1082541358f0 100644
--- a/drivers/video/via/viafbdev.c
+++ b/drivers/video/via/viafbdev.c
@@ -578,14 +578,9 @@ static int viafb_ioctl(struct fb_info *info, u_int cmd, u_long arg)
                 break;
 
         case VIAFB_SET_GAMMA_LUT:
-                viafb_gamma_table = kmalloc(256 * sizeof(u32), GFP_KERNEL);
-                if (!viafb_gamma_table)
-                        return -ENOMEM;
-                if (copy_from_user(viafb_gamma_table, argp,
-                                256 * sizeof(u32))) {
-                        kfree(viafb_gamma_table);
-                        return -EFAULT;
-                }
+                viafb_gamma_table = memdup_user(argp, 256 * sizeof(u32));
+                if (IS_ERR(viafb_gamma_table))
+                        return PTR_ERR(viafb_gamma_table);
                 viafb_set_gamma_table(viafb_bpp, viafb_gamma_table);
                 kfree(viafb_gamma_table);
                 break;