Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (151 commits)
  powerpc: Fix usage of 64-bit instruction in 32-bit altivec code
  MAINTAINERS: Add PowerPC patterns
  powerpc/pseries: Track previous CPPR values to correctly EOI interrupts
  powerpc/pseries: Correct pseries/dlpar.c build break without CONFIG_SMP
  powerpc: Make "intspec" pointers in irq_host->xlate() const
  powerpc/8xx: DTLB Miss cleanup
  powerpc/8xx: Remove DIRTY pte handling in DTLB Error.
  powerpc/8xx: Start using dcbX instructions in various copy routines
  powerpc/8xx: Restore _PAGE_WRITETHRU
  powerpc/8xx: Add missing Guarded setting in DTLB Error.
  powerpc/8xx: Fixup DAR from buggy dcbX instructions.
  powerpc/8xx: Tag DAR with 0x00f0 to catch buggy instructions.
  powerpc/8xx: Update TLB asm so it behaves as linux mm expects.
  powerpc/8xx: Invalidate non present TLBs
  powerpc/pseries: Serialize cpu hotplug operations during deactivate Vs deallocate
  pseries/pseries: Add code to online/offline CPUs of a DLPAR node
  powerpc: stop_this_cpu: remove the cpu from the online map.
  powerpc/pseries: Add kernel based CPU DLPAR handling
  sysfs/cpu: Add probe/release files
  powerpc/pseries: Kernel DLPAR Infrastructure
  ...

3 files changed, 3 insertions, 295 deletions

diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 3711b888d482..d958b76430a2 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -861,8 +861,10 @@ config GEF_WDT
           Watchdog timer found in a number of GE Fanuc single board computers.
 
 config MPC5200_WDT
-        tristate "MPC5200 Watchdog Timer"
+        bool "MPC52xx Watchdog Timer"
         depends on PPC_MPC52xx
+        help
+          Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
 
 config 8xxx_WDT
         tristate "MPC8xxx Platform Watchdog Timer"
diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile
index 699199b1baa6..89c045dc468e 100644
--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
@@ -118,7 +118,6 @@ obj-$(CONFIG_TXX9_WDT) += txx9wdt.o
 
 # POWERPC Architecture
 obj-$(CONFIG_GEF_WDT) += gef_wdt.o
-obj-$(CONFIG_MPC5200_WDT) += mpc5200_wdt.o
 obj-$(CONFIG_8xxx_WDT) += mpc8xxx_wdt.o
 obj-$(CONFIG_MV64X60_WDT) += mv64x60_wdt.o
 obj-$(CONFIG_PIKA_WDT) += pika_wdt.o
diff --git a/drivers/watchdog/mpc5200_wdt.c b/drivers/watchdog/mpc5200_wdt.c
deleted file mode 100644
index fa9c47ce0ae7..000000000000
--- a/drivers/watchdog/mpc5200_wdt.c
+++ /dev/null
@@ -1,293 +0,0 @@
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/miscdevice.h>
-#include <linux/watchdog.h>
-#include <linux/io.h>
-#include <linux/spinlock.h>
-#include <linux/of_platform.h>
-#include <linux/uaccess.h>
-#include <asm/mpc52xx.h>
-
-
-#define GPT_MODE_WDT            (1 << 15)
-#define GPT_MODE_CE             (1 << 12)
-#define GPT_MODE_MS_TIMER       (0x4)
-
-
-struct mpc5200_wdt {
-        unsigned count; /* timer ticks before watchdog kicks in */
-        long ipb_freq;
-        struct miscdevice miscdev;
-        struct resource mem;
-        struct mpc52xx_gpt __iomem *regs;
-        spinlock_t io_lock;
-};
-
-/* is_active stores wether or not the /dev/watchdog device is opened */
-static unsigned long is_active;
-
-/* misc devices don't provide a way, to get back to 'dev' or 'miscdev' from
- * file operations, which sucks. But there can be max 1 watchdog anyway, so...
- */
-static struct mpc5200_wdt *wdt_global;
-
-
-/* helper to calculate timeout in timer counts */
-static void mpc5200_wdt_set_timeout(struct mpc5200_wdt *wdt, int timeout)
-{
-        /* use biggest prescaler of 64k */
-        wdt->count = (wdt->ipb_freq + 0xffff) / 0x10000 * timeout;
-
-        if (wdt->count > 0xffff)
-                wdt->count = 0xffff;
-}
-/* return timeout in seconds (calculated from timer count) */
-static int mpc5200_wdt_get_timeout(struct mpc5200_wdt *wdt)
-{
-        return wdt->count * 0x10000 / wdt->ipb_freq;
-}
-
-
-/* watchdog operations */
-static int mpc5200_wdt_start(struct mpc5200_wdt *wdt)
-{
-        spin_lock(&wdt->io_lock);
-        /* disable */
-        out_be32(&wdt->regs->mode, 0);
-        /* set timeout, with maximum prescaler */
-        out_be32(&wdt->regs->count, 0x0 | wdt->count);
-        /* enable watchdog */
-        out_be32(&wdt->regs->mode, GPT_MODE_CE | GPT_MODE_WDT |
-                                                GPT_MODE_MS_TIMER);
-        spin_unlock(&wdt->io_lock);
-
-        return 0;
-}
-static int mpc5200_wdt_ping(struct mpc5200_wdt *wdt)
-{
-        spin_lock(&wdt->io_lock);
-        /* writing A5 to OCPW resets the watchdog */
-        out_be32(&wdt->regs->mode, 0xA5000000 |
-                                (0xffffff & in_be32(&wdt->regs->mode)));
-        spin_unlock(&wdt->io_lock);
-        return 0;
-}
-static int mpc5200_wdt_stop(struct mpc5200_wdt *wdt)
-{
-        spin_lock(&wdt->io_lock);
-        /* disable */
-        out_be32(&wdt->regs->mode, 0);
-        spin_unlock(&wdt->io_lock);
-        return 0;
-}
-
-
-/* file operations */
-static ssize_t mpc5200_wdt_write(struct file *file, const char __user *data,
-                size_t len, loff_t *ppos)
-{
-        struct mpc5200_wdt *wdt = file->private_data;
-        mpc5200_wdt_ping(wdt);
-        return 0;
-}
-static struct watchdog_info mpc5200_wdt_info = {
-        .options        = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING,
-        .identity       = "mpc5200 watchdog on GPT0",
-};
-static long mpc5200_wdt_ioctl(struct file *file, unsigned int cmd,
-                                                        unsigned long arg)
-{
-        struct mpc5200_wdt *wdt = file->private_data;
-        int __user *data = (int __user *)arg;
-        int timeout;
-        int ret = 0;
-
-        switch (cmd) {
-        case WDIOC_GETSUPPORT:
-                ret = copy_to_user(data, &mpc5200_wdt_info,
-                                                sizeof(mpc5200_wdt_info));
-                if (ret)
-                        ret = -EFAULT;
-                break;
-
-        case WDIOC_GETSTATUS:
-        case WDIOC_GETBOOTSTATUS:
-                ret = put_user(0, data);
-                break;
-
-        case WDIOC_KEEPALIVE:
-                mpc5200_wdt_ping(wdt);
-                break;
-
-        case WDIOC_SETTIMEOUT:
-                ret = get_user(timeout, data);
-                if (ret)
-                        break;
-                mpc5200_wdt_set_timeout(wdt, timeout);
-                mpc5200_wdt_start(wdt);
-                /* fall through and return the timeout */
-
-        case WDIOC_GETTIMEOUT:
-                timeout = mpc5200_wdt_get_timeout(wdt);
-                ret = put_user(timeout, data);
-                break;
-
-        default:
-                ret = -ENOTTY;
-        }
-        return ret;
-}
-
-static int mpc5200_wdt_open(struct inode *inode, struct file *file)
-{
-        /* /dev/watchdog can only be opened once */
-        if (test_and_set_bit(0, &is_active))
-                return -EBUSY;
-
-        /* Set and activate the watchdog */
-        mpc5200_wdt_set_timeout(wdt_global, 30);
-        mpc5200_wdt_start(wdt_global);
-        file->private_data = wdt_global;
-        return nonseekable_open(inode, file);
-}
-static int mpc5200_wdt_release(struct inode *inode, struct file *file)
-{
-#if WATCHDOG_NOWAYOUT == 0
-        struct mpc5200_wdt *wdt = file->private_data;
-        mpc5200_wdt_stop(wdt);
-        wdt->count = 0;         /* == disabled */
-#endif
-        clear_bit(0, &is_active);
-        return 0;
-}
-
-static const struct file_operations mpc5200_wdt_fops = {
-        .owner  = THIS_MODULE,
-        .write  = mpc5200_wdt_write,
-        .unlocked_ioctl = mpc5200_wdt_ioctl,
-        .open   = mpc5200_wdt_open,
-        .release = mpc5200_wdt_release,
-};
-
-/* module operations */
-static int mpc5200_wdt_probe(struct of_device *op,
-                                        const struct of_device_id *match)
-{
-        struct mpc5200_wdt *wdt;
-        int err;
-        const void *has_wdt;
-        int size;
-
-        has_wdt = of_get_property(op->node, "has-wdt", NULL);
-        if (!has_wdt)
-                has_wdt = of_get_property(op->node, "fsl,has-wdt", NULL);
-        if (!has_wdt)
-                return -ENODEV;
-
-        wdt = kzalloc(sizeof(*wdt), GFP_KERNEL);
-        if (!wdt)
-                return -ENOMEM;
-
-        wdt->ipb_freq = mpc5xxx_get_bus_frequency(op->node);
-
-        err = of_address_to_resource(op->node, 0, &wdt->mem);
-        if (err)
-                goto out_free;
-        size = wdt->mem.end - wdt->mem.start + 1;
-        if (!request_mem_region(wdt->mem.start, size, "mpc5200_wdt")) {
-                err = -ENODEV;
-                goto out_free;
-        }
-        wdt->regs = ioremap(wdt->mem.start, size);
-        if (!wdt->regs) {
-                err = -ENODEV;
-                goto out_release;
-        }
-
-        dev_set_drvdata(&op->dev, wdt);
-        spin_lock_init(&wdt->io_lock);
-
-        wdt->miscdev = (struct miscdevice) {
-                .minor  = WATCHDOG_MINOR,
-                .name   = "watchdog",
-                .fops   = &mpc5200_wdt_fops,
-                .parent = &op->dev,
-        };
-        wdt_global = wdt;
-        err = misc_register(&wdt->miscdev);
-        if (!err)
-                return 0;
-
-        iounmap(wdt->regs);
-out_release:
-        release_mem_region(wdt->mem.start, size);
-out_free:
-        kfree(wdt);
-        return err;
-}
-
-static int mpc5200_wdt_remove(struct of_device *op)
-{
-        struct mpc5200_wdt *wdt = dev_get_drvdata(&op->dev);
-
-        mpc5200_wdt_stop(wdt);
-        misc_deregister(&wdt->miscdev);
-        iounmap(wdt->regs);
-        release_mem_region(wdt->mem.start, wdt->mem.end - wdt->mem.start + 1);
-        kfree(wdt);
-
-        return 0;
-}
-static int mpc5200_wdt_suspend(struct of_device *op, pm_message_t state)
-{
-        struct mpc5200_wdt *wdt = dev_get_drvdata(&op->dev);
-        mpc5200_wdt_stop(wdt);
-        return 0;
-}
-static int mpc5200_wdt_resume(struct of_device *op)
-{
-        struct mpc5200_wdt *wdt = dev_get_drvdata(&op->dev);
-        if (wdt->count)
-                mpc5200_wdt_start(wdt);
-        return 0;
-}
-static int mpc5200_wdt_shutdown(struct of_device *op)
-{
-        struct mpc5200_wdt *wdt = dev_get_drvdata(&op->dev);
-        mpc5200_wdt_stop(wdt);
-        return 0;
-}
-
-static struct of_device_id mpc5200_wdt_match[] = {
-        { .compatible = "mpc5200-gpt", },
-        { .compatible = "fsl,mpc5200-gpt", },
-        {},
-};
-static struct of_platform_driver mpc5200_wdt_driver = {
-        .owner          = THIS_MODULE,
-        .name           = "mpc5200-gpt-wdt",
-        .match_table    = mpc5200_wdt_match,
-        .probe          = mpc5200_wdt_probe,
-        .remove         = mpc5200_wdt_remove,
-        .suspend        = mpc5200_wdt_suspend,
-        .resume         = mpc5200_wdt_resume,
-        .shutdown       = mpc5200_wdt_shutdown,
-};
-
-
-static int __init mpc5200_wdt_init(void)
-{
-        return of_register_platform_driver(&mpc5200_wdt_driver);
-}
-
-static void __exit mpc5200_wdt_exit(void)
-{
-        of_unregister_platform_driver(&mpc5200_wdt_driver);
-}
-
-module_init(mpc5200_wdt_init);
-module_exit(mpc5200_wdt_exit);
-
-MODULE_AUTHOR("Domen Puncer <domen.puncer@telargo.com>");
-MODULE_LICENSE("Dual BSD/GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);