Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6

* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SPARC/64]: Consolidate of_register_driver
  [SPARC] Videopix Frame Grabber: Convert device_lock_sem to mutex
  [SPARC]: Support for new termios.
  [SPARC64]: Check of_get_property() return in pci_determine_mem_io_space().
  [SPARC64]: Fix boot failures due to bootmem.
  [SPARC64]: Implement atomic backoff.

19 files changed, 243 insertions, 80 deletions

diff --git a/arch/sparc/kernel/of_device.c b/arch/sparc/kernel/of_device.c
index fb2caef79cec..3ea000d15e3a 100644
--- a/arch/sparc/kernel/of_device.c
+++ b/arch/sparc/kernel/of_device.c
@@ -585,24 +585,6 @@ static int __init of_debug(char *str)
 
 __setup("of_debug=", of_debug);
 
-int of_register_driver(struct of_platform_driver *drv, struct bus_type *bus)
-{
-        /* initialize common driver fields */
-        if (!drv->driver.name)
-                drv->driver.name = drv->name;
-        if (!drv->driver.owner)
-                drv->driver.owner = drv->owner;
-        drv->driver.bus = bus;
-
-        /* register with core */
-        return driver_register(&drv->driver);
-}
-
-void of_unregister_driver(struct of_platform_driver *drv)
-{
-        driver_unregister(&drv->driver);
-}
-
 struct of_device* of_platform_device_create(struct device_node *np,
                                             const char *bus_id,
                                             struct device *parent,
@@ -628,6 +610,4 @@ struct of_device* of_platform_device_create(struct device_node *np,
         return dev;
 }
 
-EXPORT_SYMBOL(of_register_driver);
-EXPORT_SYMBOL(of_unregister_driver);
 EXPORT_SYMBOL(of_platform_device_create);
diff --git a/arch/sparc64/kernel/irq.c b/arch/sparc64/kernel/irq.c
index f3922e5a89f6..2c3bea228159 100644
--- a/arch/sparc64/kernel/irq.c
+++ b/arch/sparc64/kernel/irq.c
@@ -877,7 +877,7 @@ void __cpuinit sun4v_register_mondo_queues(int this_cpu)
 static void __init alloc_one_mondo(unsigned long *pa_ptr, unsigned long qmask)
 {
         unsigned long size = PAGE_ALIGN(qmask + 1);
-        void *p = __alloc_bootmem_low(size, size, 0);
+        void *p = __alloc_bootmem(size, size, 0);
         if (!p) {
                 prom_printf("SUN4V: Error, cannot allocate mondo queue.\n");
                 prom_halt();
@@ -889,7 +889,7 @@ static void __init alloc_one_mondo(unsigned long *pa_ptr, unsigned long qmask)
 static void __init alloc_one_kbuf(unsigned long *pa_ptr, unsigned long qmask)
 {
         unsigned long size = PAGE_ALIGN(qmask + 1);
-        void *p = __alloc_bootmem_low(size, size, 0);
+        void *p = __alloc_bootmem(size, size, 0);
 
         if (!p) {
                 prom_printf("SUN4V: Error, cannot allocate kbuf page.\n");
@@ -906,7 +906,7 @@ static void __init init_cpu_send_mondo_info(struct trap_per_cpu *tb)
 
         BUILD_BUG_ON((NR_CPUS * sizeof(u16)) > (PAGE_SIZE - 64));
 
-        page = alloc_bootmem_low_pages(PAGE_SIZE);
+        page = alloc_bootmem_pages(PAGE_SIZE);
         if (!page) {
                 prom_printf("SUN4V: Error, cannot allocate cpu mondo page.\n");
                 prom_halt();
@@ -953,7 +953,7 @@ void __init init_IRQ(void)
         kill_prom_timer();
 
         size = sizeof(struct ino_bucket) * NUM_IVECS;
-        ivector_table = alloc_bootmem_low(size);
+        ivector_table = alloc_bootmem(size);
         if (!ivector_table) {
                 prom_printf("Fatal error, cannot allocate ivector_table\n");
                 prom_halt();
diff --git a/arch/sparc64/kernel/of_device.c b/arch/sparc64/kernel/of_device.c
index 42d779866fba..fc5c0cc793b8 100644
--- a/arch/sparc64/kernel/of_device.c
+++ b/arch/sparc64/kernel/of_device.c
@@ -869,26 +869,6 @@ static int __init of_debug(char *str)
 
 __setup("of_debug=", of_debug);
 
-int of_register_driver(struct of_platform_driver *drv, struct bus_type *bus)
-{
-        /* initialize common driver fields */
-        if (!drv->driver.name)
-                drv->driver.name = drv->name;
-        if (!drv->driver.owner)
-                drv->driver.owner = drv->owner;
-        drv->driver.bus = bus;
-
-        /* register with core */
-        return driver_register(&drv->driver);
-}
-EXPORT_SYMBOL(of_register_driver);
-
-void of_unregister_driver(struct of_platform_driver *drv)
-{
-        driver_unregister(&drv->driver);
-}
-EXPORT_SYMBOL(of_unregister_driver);
-
 struct of_device* of_platform_device_create(struct device_node *np,
                                             const char *bus_id,
                                             struct device *parent,
diff --git a/arch/sparc64/kernel/pci_common.c b/arch/sparc64/kernel/pci_common.c
index c76bfbb7da08..923e0bcc3bfd 100644
--- a/arch/sparc64/kernel/pci_common.c
+++ b/arch/sparc64/kernel/pci_common.c
@@ -396,6 +396,13 @@ void pci_determine_mem_io_space(struct pci_pbm_info *pbm)
 
         saw_mem = saw_io = 0;
         pbm_ranges = of_get_property(pbm->prom_node, "ranges", &i);
+        if (!pbm_ranges) {
+                prom_printf("PCI: Fatal error, missing PBM ranges property "
+                            " for %s\n",
+                            pbm->name);
+                prom_halt();
+        }
+
         num_pbm_ranges = i / sizeof(*pbm_ranges);
 
         for (i = 0; i < num_pbm_ranges; i++) {
diff --git a/arch/sparc64/lib/atomic.S b/arch/sparc64/lib/atomic.S
index 9633750167d0..70ac4186f62b 100644
--- a/arch/sparc64/lib/atomic.S
+++ b/arch/sparc64/lib/atomic.S
@@ -1,10 +1,10 @@
-/* $Id: atomic.S,v 1.4 2001/11/18 00:12:56 davem Exp $
- * atomic.S: These things are too big to do inline.
+/* atomic.S: These things are too big to do inline.
  *
- * Copyright (C) 1999 David S. Miller (davem@redhat.com)
+ * Copyright (C) 1999, 2007 David S. Miller (davem@davemloft.net)
  */
 
 #include <asm/asi.h>
+#include <asm/backoff.h>
 
         .text
 
@@ -16,27 +16,31 @@
         .globl  atomic_add
         .type   atomic_add,#function
 atomic_add: /* %o0 = increment, %o1 = atomic_ptr */
+        BACKOFF_SETUP(%o2)
 1:      lduw    [%o1], %g1
         add     %g1, %o0, %g7
         cas     [%o1], %g1, %g7
         cmp     %g1, %g7
-        bne,pn  %icc, 1b
+        bne,pn  %icc, 2f
          nop
         retl
          nop
+2:      BACKOFF_SPIN(%o2, %o3, 1b)
         .size   atomic_add, .-atomic_add
 
         .globl  atomic_sub
         .type   atomic_sub,#function
 atomic_sub: /* %o0 = decrement, %o1 = atomic_ptr */
+        BACKOFF_SETUP(%o2)
 1:      lduw    [%o1], %g1
         sub     %g1, %o0, %g7
         cas     [%o1], %g1, %g7
         cmp     %g1, %g7
-        bne,pn  %icc, 1b
+        bne,pn  %icc, 2f
          nop
         retl
          nop
+2:      BACKOFF_SPIN(%o2, %o3, 1b)
         .size   atomic_sub, .-atomic_sub
 
         /* On SMP we need to use memory barriers to ensure
@@ -60,89 +64,101 @@ atomic_sub: /* %o0 = decrement, %o1 = atomic_ptr */
         .globl  atomic_add_ret
         .type   atomic_add_ret,#function
 atomic_add_ret: /* %o0 = increment, %o1 = atomic_ptr */
+        BACKOFF_SETUP(%o2)
         ATOMIC_PRE_BARRIER
 1:      lduw    [%o1], %g1
         add     %g1, %o0, %g7
         cas     [%o1], %g1, %g7
         cmp     %g1, %g7
-        bne,pn  %icc, 1b
+        bne,pn  %icc, 2f
          add    %g7, %o0, %g7
         sra     %g7, 0, %o0
         ATOMIC_POST_BARRIER
         retl
          nop
+2:      BACKOFF_SPIN(%o2, %o3, 1b)
         .size   atomic_add_ret, .-atomic_add_ret
 
         .globl  atomic_sub_ret
         .type   atomic_sub_ret,#function
 atomic_sub_ret: /* %o0 = decrement, %o1 = atomic_ptr */
+        BACKOFF_SETUP(%o2)
         ATOMIC_PRE_BARRIER
 1:      lduw    [%o1], %g1
         sub     %g1, %o0, %g7
         cas     [%o1], %g1, %g7
         cmp     %g1, %g7
-        bne,pn  %icc, 1b
+        bne,pn  %icc, 2f
          sub    %g7, %o0, %g7
         sra     %g7, 0, %o0
         ATOMIC_POST_BARRIER
         retl
          nop
+2:      BACKOFF_SPIN(%o2, %o3, 1b)
         .size   atomic_sub_ret, .-atomic_sub_ret
 
         .globl  atomic64_add
         .type   atomic64_add,#function
 atomic64_add: /* %o0 = increment, %o1 = atomic_ptr */
+        BACKOFF_SETUP(%o2)
 1:      ldx     [%o1], %g1
         add     %g1, %o0, %g7
         casx    [%o1], %g1, %g7
         cmp     %g1, %g7
-        bne,pn  %xcc, 1b
+        bne,pn  %xcc, 2f
          nop
         retl
          nop
+2:      BACKOFF_SPIN(%o2, %o3, 1b)
         .size   atomic64_add, .-atomic64_add
 
         .globl  atomic64_sub
         .type   atomic64_sub,#function
 atomic64_sub: /* %o0 = decrement, %o1 = atomic_ptr */
+        BACKOFF_SETUP(%o2)
 1:      ldx     [%o1], %g1
         sub     %g1, %o0, %g7
         casx    [%o1], %g1, %g7
         cmp     %g1, %g7
-        bne,pn  %xcc, 1b
+        bne,pn  %xcc, 2f
          nop
         retl
          nop
+2:      BACKOFF_SPIN(%o2, %o3, 1b)
         .size   atomic64_sub, .-atomic64_sub
 
         .globl  atomic64_add_ret
         .type   atomic64_add_ret,#function
 atomic64_add_ret: /* %o0 = increment, %o1 = atomic_ptr */
+        BACKOFF_SETUP(%o2)
         ATOMIC_PRE_BARRIER
 1:      ldx     [%o1], %g1
         add     %g1, %o0, %g7
         casx    [%o1], %g1, %g7
         cmp     %g1, %g7
-        bne,pn  %xcc, 1b
+        bne,pn  %xcc, 2f
          add    %g7, %o0, %g7
         mov     %g7, %o0
         ATOMIC_POST_BARRIER
         retl
          nop
+2:      BACKOFF_SPIN(%o2, %o3, 1b)
         .size   atomic64_add_ret, .-atomic64_add_ret
 
         .globl  atomic64_sub_ret
         .type   atomic64_sub_ret,#function
 atomic64_sub_ret: /* %o0 = decrement, %o1 = atomic_ptr */
+        BACKOFF_SETUP(%o2)
         ATOMIC_PRE_BARRIER
 1:      ldx     [%o1], %g1
         sub     %g1, %o0, %g7
         casx    [%o1], %g1, %g7
         cmp     %g1, %g7
-        bne,pn  %xcc, 1b
+        bne,pn  %xcc, 2f
          sub    %g7, %o0, %g7
         mov     %g7, %o0
         ATOMIC_POST_BARRIER
         retl
          nop
+2:      BACKOFF_SPIN(%o2, %o3, 1b)
         .size   atomic64_sub_ret, .-atomic64_sub_ret
diff --git a/arch/sparc64/lib/bitops.S b/arch/sparc64/lib/bitops.S
index 892431a82131..6b015a6eefb5 100644
--- a/arch/sparc64/lib/bitops.S
+++ b/arch/sparc64/lib/bitops.S
@@ -1,10 +1,10 @@
-/* $Id: bitops.S,v 1.3 2001/11/18 00:12:56 davem Exp $
- * bitops.S: Sparc64 atomic bit operations.
+/* bitops.S: Sparc64 atomic bit operations.
  *
- * Copyright (C) 2000 David S. Miller (davem@redhat.com)
+ * Copyright (C) 2000, 2007 David S. Miller (davem@davemloft.net)
  */
 
 #include <asm/asi.h>
+#include <asm/backoff.h>
 
         .text
 
@@ -29,6 +29,7 @@
         .globl  test_and_set_bit
         .type   test_and_set_bit,#function
 test_and_set_bit:       /* %o0=nr, %o1=addr */
+        BACKOFF_SETUP(%o3)
         BITOP_PRE_BARRIER
         srlx    %o0, 6, %g1
         mov     1, %o2
@@ -40,18 +41,20 @@ test_and_set_bit:	/* %o0=nr, %o1=addr */
         or      %g7, %o2, %g1
         casx    [%o1], %g7, %g1
         cmp     %g7, %g1
-        bne,pn  %xcc, 1b
+        bne,pn  %xcc, 2f
          and    %g7, %o2, %g2
         clr     %o0
         movrne  %g2, 1, %o0
         BITOP_POST_BARRIER
         retl
          nop
+2:      BACKOFF_SPIN(%o3, %o4, 1b)
         .size   test_and_set_bit, .-test_and_set_bit
 
         .globl  test_and_clear_bit
         .type   test_and_clear_bit,#function
 test_and_clear_bit:     /* %o0=nr, %o1=addr */
+        BACKOFF_SETUP(%o3)
         BITOP_PRE_BARRIER
         srlx    %o0, 6, %g1
         mov     1, %o2
@@ -63,18 +66,20 @@ test_and_clear_bit:	/* %o0=nr, %o1=addr */
         andn    %g7, %o2, %g1
         casx    [%o1], %g7, %g1
         cmp     %g7, %g1
-        bne,pn  %xcc, 1b
+        bne,pn  %xcc, 2f
          and    %g7, %o2, %g2
         clr     %o0
         movrne  %g2, 1, %o0
         BITOP_POST_BARRIER
         retl
          nop
+2:      BACKOFF_SPIN(%o3, %o4, 1b)
         .size   test_and_clear_bit, .-test_and_clear_bit
 
         .globl  test_and_change_bit
         .type   test_and_change_bit,#function
 test_and_change_bit:    /* %o0=nr, %o1=addr */
+        BACKOFF_SETUP(%o3)
         BITOP_PRE_BARRIER
         srlx    %o0, 6, %g1
         mov     1, %o2
@@ -86,18 +91,20 @@ test_and_change_bit:	/* %o0=nr, %o1=addr */
         xor     %g7, %o2, %g1
         casx    [%o1], %g7, %g1
         cmp     %g7, %g1
-        bne,pn  %xcc, 1b
+        bne,pn  %xcc, 2f
          and    %g7, %o2, %g2
         clr     %o0
         movrne  %g2, 1, %o0
         BITOP_POST_BARRIER
         retl
          nop
+2:      BACKOFF_SPIN(%o3, %o4, 1b)
         .size   test_and_change_bit, .-test_and_change_bit
 
         .globl  set_bit
         .type   set_bit,#function
 set_bit:                /* %o0=nr, %o1=addr */
+        BACKOFF_SETUP(%o3)
         srlx    %o0, 6, %g1
         mov     1, %o2
         sllx    %g1, 3, %g3
@@ -108,15 +115,17 @@ set_bit:		/* %o0=nr, %o1=addr */
         or      %g7, %o2, %g1
         casx    [%o1], %g7, %g1
         cmp     %g7, %g1
-        bne,pn  %xcc, 1b
+        bne,pn  %xcc, 2f
          nop
         retl
          nop
+2:      BACKOFF_SPIN(%o3, %o4, 1b)
         .size   set_bit, .-set_bit
 
         .globl  clear_bit
         .type   clear_bit,#function
 clear_bit:              /* %o0=nr, %o1=addr */
+        BACKOFF_SETUP(%o3)
         srlx    %o0, 6, %g1
         mov     1, %o2
         sllx    %g1, 3, %g3
@@ -127,15 +136,17 @@ clear_bit:		/* %o0=nr, %o1=addr */
         andn    %g7, %o2, %g1
         casx    [%o1], %g7, %g1
         cmp     %g7, %g1
-        bne,pn  %xcc, 1b
+        bne,pn  %xcc, 2f
          nop
         retl
          nop
+2:      BACKOFF_SPIN(%o3, %o4, 1b)
         .size   clear_bit, .-clear_bit
 
         .globl  change_bit
         .type   change_bit,#function
 change_bit:             /* %o0=nr, %o1=addr */
+        BACKOFF_SETUP(%o3)
         srlx    %o0, 6, %g1
         mov     1, %o2
         sllx    %g1, 3, %g3
@@ -146,8 +157,9 @@ change_bit:		/* %o0=nr, %o1=addr */
         xor     %g7, %o2, %g1
         casx    [%o1], %g7, %g1
         cmp     %g7, %g1
-        bne,pn  %xcc, 1b
+        bne,pn  %xcc, 2f
          nop
         retl
          nop
+2:      BACKOFF_SPIN(%o3, %o4, 1b)
         .size   change_bit, .-change_bit
diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index 864f09fd9f86..b47bb2d7476a 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -12,6 +12,7 @@
  *
  */
 #include <linux/errno.h>
+#include <linux/module.h>
 #include <linux/device.h>
 #include <linux/of_device.h>
 #include <linux/of_platform.h>
@@ -94,3 +95,23 @@ int of_bus_type_init(struct bus_type *bus, const char *name)
         bus->resume = of_platform_device_resume;
         return bus_register(bus);
 }
+
+int of_register_driver(struct of_platform_driver *drv, struct bus_type *bus)
+{
+        /* initialize common driver fields */
+        if (!drv->driver.name)
+                drv->driver.name = drv->name;
+        if (!drv->driver.owner)
+                drv->driver.owner = drv->owner;
+        drv->driver.bus = bus;
+
+        /* register with core */
+        return driver_register(&drv->driver);
+}
+EXPORT_SYMBOL(of_register_driver);
+
+void of_unregister_driver(struct of_platform_driver *drv)
+{
+        driver_unregister(&drv->driver);
+}
+EXPORT_SYMBOL(of_unregister_driver);
diff --git a/drivers/sbus/char/vfc.h b/drivers/sbus/char/vfc.h
index 63941a259b92..f1aa1389ea4a 100644
--- a/drivers/sbus/char/vfc.h
+++ b/drivers/sbus/char/vfc.h
@@ -126,7 +126,7 @@ struct vfc_dev {
         volatile struct vfc_regs __iomem *regs;
         struct vfc_regs *phys_regs;
         unsigned int control_reg;
-        struct semaphore device_lock_sem;
+        struct mutex device_lock_mtx;
         int instance;
         int busy;
         unsigned long which_io;
diff --git a/drivers/sbus/char/vfc_dev.c b/drivers/sbus/char/vfc_dev.c
index 9269f7fbd363..e7a1642b2aa4 100644
--- a/drivers/sbus/char/vfc_dev.c
+++ b/drivers/sbus/char/vfc_dev.c
@@ -22,6 +22,7 @@
 #include <linux/fs.h>
 #include <linux/delay.h>
 #include <linux/spinlock.h>
+#include <linux/mutex.h>
 #include <linux/mm.h>
 
 #include <asm/openprom.h>
@@ -54,12 +55,12 @@ static unsigned char saa9051_init_array[VFC_SAA9051_NR] = {
 
 void vfc_lock_device(struct vfc_dev *dev)
 {
-        down(&dev->device_lock_sem);
+        mutex_lock(&dev->device_lock_mtx);
 }
 
 void vfc_unlock_device(struct vfc_dev *dev)
 {
-        up(&dev->device_lock_sem);
+        mutex_unlock(&dev->device_lock_mtx);
 }
 
 
diff --git a/include/asm-sparc/ioctls.h b/include/asm-sparc/ioctls.h
index bdf77b0dfd8e..058c2064f706 100644
--- a/include/asm-sparc/ioctls.h
+++ b/include/asm-sparc/ioctls.h
@@ -15,6 +15,10 @@
 #define TCSETS          _IOW('T', 9, struct termios)
 #define TCSETSW         _IOW('T', 10, struct termios)
 #define TCSETSF         _IOW('T', 11, struct termios)
+#define TCGETS2         _IOR('T', 12, struct termios2)
+#define TCSETS2         _IOW('T', 13, struct termios2)
+#define TCSETSW2        _IOW('T', 14, struct termios2)
+#define TCSETSF2        _IOW('T', 15, struct termios2)
 
 /* Note that all the ioctls that are not available in Linux have a 
  * double underscore on the front to: a) avoid some programs to
diff --git a/include/asm-sparc/of_platform.h b/include/asm-sparc/of_platform.h
index 64a230064ef2..d638737ff13c 100644
--- a/include/asm-sparc/of_platform.h
+++ b/include/asm-sparc/of_platform.h
@@ -18,12 +18,9 @@
 
 extern struct bus_type ebus_bus_type;
 extern struct bus_type sbus_bus_type;
-extern struct bus_type of_platform_bus_type;
+
 #define of_bus_type     of_platform_bus_type    /* for compatibility */
 
-extern int of_register_driver(struct of_platform_driver *drv,
-                              struct bus_type *bus);
-extern void of_unregister_driver(struct of_platform_driver *drv);
 extern struct of_device *of_platform_device_create(struct device_node *np,
                                                    const char *bus_id,
                                                    struct device *parent,
diff --git a/include/asm-sparc/termbits.h b/include/asm-sparc/termbits.h
index 5eb00a105d7c..90cf2210118b 100644
--- a/include/asm-sparc/termbits.h
+++ b/include/asm-sparc/termbits.h
@@ -31,6 +31,18 @@ struct termios {
 #endif
 };
 
+struct termios2 {
+        tcflag_t c_iflag;               /* input mode flags */
+        tcflag_t c_oflag;               /* output mode flags */
+        tcflag_t c_cflag;               /* control mode flags */
+        tcflag_t c_lflag;               /* local mode flags */
+        cc_t c_line;                    /* line discipline */
+        cc_t c_cc[NCCS];                /* control characters */
+        cc_t _x_cc[2];                  /* padding to match ktermios */
+        speed_t c_ispeed;               /* input speed */
+        speed_t c_ospeed;               /* output speed */
+};
+
 struct ktermios {
         tcflag_t c_iflag;               /* input mode flags */
         tcflag_t c_oflag;               /* output mode flags */
@@ -160,6 +172,7 @@ struct ktermios {
 #define CLOCAL    0x00000800
 #define CBAUDEX   0x00001000
 /* We'll never see these speeds with the Zilogs, but for completeness... */
+#define  BOTHER   0x00001000
 #define  B57600   0x00001001
 #define  B115200  0x00001002
 #define  B230400  0x00001003
@@ -189,6 +202,8 @@ struct ktermios {
 #define CMSPAR    0x40000000  /* mark or space (stick) parity */
 #define CRTSCTS   0x80000000  /* flow control */
 
+#define IBSHIFT   16            /* Shift from CBAUD to CIBAUD */
+
 /* c_lflag bits */
 #define ISIG    0x00000001
 #define ICANON  0x00000002
diff --git a/include/asm-sparc/termios.h b/include/asm-sparc/termios.h
index d767f206ab33..4333232abb9f 100644
--- a/include/asm-sparc/termios.h
+++ b/include/asm-sparc/termios.h
@@ -108,13 +108,55 @@ struct winsize {
 
 #define user_termios_to_kernel_termios(k, u) \
 ({ \
+        int err; \
+        err  = get_user((k)->c_iflag, &(u)->c_iflag); \
+        err |= get_user((k)->c_oflag, &(u)->c_oflag); \
+        err |= get_user((k)->c_cflag, &(u)->c_cflag); \
+        err |= get_user((k)->c_lflag, &(u)->c_lflag); \
+        err |= get_user((k)->c_line,  &(u)->c_line); \
+        err |= copy_from_user((k)->c_cc, (u)->c_cc, NCCS); \
+        if ((k)->c_lflag & ICANON) { \
+                err |= get_user((k)->c_cc[VEOF], &(u)->c_cc[VEOF]); \
+                err |= get_user((k)->c_cc[VEOL], &(u)->c_cc[VEOL]); \
+        } else { \
+                err |= get_user((k)->c_cc[VMIN],  &(u)->c_cc[_VMIN]); \
+                err |= get_user((k)->c_cc[VTIME], &(u)->c_cc[_VTIME]); \
+        } \
+        err |= get_user((k)->c_ispeed,  &(u)->c_ispeed); \
+        err |= get_user((k)->c_ospeed,  &(u)->c_ospeed); \
+        err; \
+})
+
+#define kernel_termios_to_user_termios(u, k) \
+({ \
+        int err; \
+        err  = put_user((k)->c_iflag, &(u)->c_iflag); \
+        err |= put_user((k)->c_oflag, &(u)->c_oflag); \
+        err |= put_user((k)->c_cflag, &(u)->c_cflag); \
+        err |= put_user((k)->c_lflag, &(u)->c_lflag); \
+        err |= put_user((k)->c_line, &(u)->c_line); \
+        err |= copy_to_user((u)->c_cc, (k)->c_cc, NCCS); \
+        if (!((k)->c_lflag & ICANON)) { \
+                err |= put_user((k)->c_cc[VMIN],  &(u)->c_cc[_VMIN]); \
+                err |= put_user((k)->c_cc[VTIME], &(u)->c_cc[_VTIME]); \
+        } else { \
+                err |= put_user((k)->c_cc[VEOF], &(u)->c_cc[VEOF]); \
+                err |= put_user((k)->c_cc[VEOL], &(u)->c_cc[VEOL]); \
+        } \
+        err |= put_user((k)->c_ispeed, &(u)->c_ispeed); \
+        err |= put_user((k)->c_ospeed, &(u)->c_ospeed); \
+        err; \
+})
+
+#define user_termios_to_kernel_termios_1(k, u) \
+({ \
         get_user((k)->c_iflag, &(u)->c_iflag); \
         get_user((k)->c_oflag, &(u)->c_oflag); \
         get_user((k)->c_cflag, &(u)->c_cflag); \
         get_user((k)->c_lflag, &(u)->c_lflag); \
         get_user((k)->c_line,  &(u)->c_line); \
         copy_from_user((k)->c_cc, (u)->c_cc, NCCS); \
-        if((k)->c_lflag & ICANON) { \
+        if ((k)->c_lflag & ICANON) { \
                 get_user((k)->c_cc[VEOF], &(u)->c_cc[VEOF]); \
                 get_user((k)->c_cc[VEOL], &(u)->c_cc[VEOL]); \
         } else { \
@@ -124,7 +166,7 @@ struct winsize {
         0; \
 })
 
-#define kernel_termios_to_user_termios(u, k) \
+#define kernel_termios_to_user_termios_1(u, k) \
 ({ \
         put_user((k)->c_iflag, &(u)->c_iflag); \
         put_user((k)->c_oflag, &(u)->c_oflag); \
@@ -132,7 +174,7 @@ struct winsize {
         put_user((k)->c_lflag, &(u)->c_lflag); \
         put_user((k)->c_line, &(u)->c_line); \
         copy_to_user((u)->c_cc, (k)->c_cc, NCCS); \
-        if(!((k)->c_lflag & ICANON)) { \
+        if (!((k)->c_lflag & ICANON)) { \
                 put_user((k)->c_cc[VMIN],  &(u)->c_cc[_VMIN]); \
                 put_user((k)->c_cc[VTIME], &(u)->c_cc[_VTIME]); \
         } else { \
diff --git a/include/asm-sparc64/backoff.h b/include/asm-sparc64/backoff.h
new file mode 100644
index 000000000000..0e32f8b62fd2
--- /dev/null
+++ b/include/asm-sparc64/backoff.h
@@ -0,0 +1,28 @@
+#ifndef _SPARC64_BACKOFF_H
+#define _SPARC64_BACKOFF_H
+
+#define BACKOFF_LIMIT   (4 * 1024)
+
+#ifdef CONFIG_SMP
+
+#define BACKOFF_SETUP(reg)      \
+        mov     1, reg
+
+#define BACKOFF_SPIN(reg, tmp, label)   \
+        mov     reg, tmp; \
+88:     brnz,pt tmp, 88b; \
+         sub    tmp, 1, tmp; \
+        cmp     reg, BACKOFF_LIMIT; \
+        bg,pn   %xcc, label; \
+         nop; \
+        ba,pt   %xcc, label; \
+         sllx   reg, 1, reg;
+
+#else
+
+#define BACKOFF_SETUP(reg)
+#define BACKOFF_SPIN(reg, tmp, label)
+
+#endif
+
+#endif /* _SPARC64_BACKOFF_H */
diff --git a/include/asm-sparc64/ioctls.h b/include/asm-sparc64/ioctls.h
index 2223b6d0e5ed..083c9a0f37de 100644
--- a/include/asm-sparc64/ioctls.h
+++ b/include/asm-sparc64/ioctls.h
@@ -16,6 +16,10 @@
 #define TCSETS          _IOW('T', 9, struct termios)
 #define TCSETSW         _IOW('T', 10, struct termios)
 #define TCSETSF         _IOW('T', 11, struct termios)
+#define TCGETS2         _IOR('T', 12, struct termios2)
+#define TCSETS2         _IOW('T', 13, struct termios2)
+#define TCSETSW2        _IOW('T', 14, struct termios2)
+#define TCSETSF2        _IOW('T', 15, struct termios2)
 
 /* Note that all the ioctls that are not available in Linux have a 
  * double underscore on the front to: a) avoid some programs to
diff --git a/include/asm-sparc64/of_platform.h b/include/asm-sparc64/of_platform.h
index f7c1f17c7d52..f15cfa723916 100644
--- a/include/asm-sparc64/of_platform.h
+++ b/include/asm-sparc64/of_platform.h
@@ -19,12 +19,9 @@
 extern struct bus_type isa_bus_type;
 extern struct bus_type ebus_bus_type;
 extern struct bus_type sbus_bus_type;
-extern struct bus_type of_platform_bus_type;
+
 #define of_bus_type     of_platform_bus_type    /* for compatibility */
 
-extern int of_register_driver(struct of_platform_driver *drv,
-                              struct bus_type *bus);
-extern void of_unregister_driver(struct of_platform_driver *drv);
 extern struct of_device *of_platform_device_create(struct device_node *np,
                                                    const char *bus_id,
                                                    struct device *parent,
diff --git a/include/asm-sparc64/termbits.h b/include/asm-sparc64/termbits.h
index 705cd44b4173..ebe31c152f16 100644
--- a/include/asm-sparc64/termbits.h
+++ b/include/asm-sparc64/termbits.h
@@ -5,8 +5,6 @@
 
 typedef unsigned char   cc_t;
 typedef unsigned int    speed_t;
-
-/* XXX is this right for sparc64?  it was an unsigned long... XXX */
 typedef unsigned int    tcflag_t;
 
 #define NCC 8
@@ -33,6 +31,18 @@ struct termios {
 #endif
 };
 
+struct termios2 {
+        tcflag_t c_iflag;               /* input mode flags */
+        tcflag_t c_oflag;               /* output mode flags */
+        tcflag_t c_cflag;               /* control mode flags */
+        tcflag_t c_lflag;               /* local mode flags */
+        cc_t c_line;                    /* line discipline */
+        cc_t c_cc[NCCS];                /* control characters */
+        cc_t _x_cc[2];                  /* padding to match ktermios */
+        speed_t c_ispeed;               /* input speed */
+        speed_t c_ospeed;               /* output speed */
+};
+
 struct ktermios {
         tcflag_t c_iflag;               /* input mode flags */
         tcflag_t c_oflag;               /* output mode flags */
@@ -161,6 +171,7 @@ struct ktermios {
 #define HUPCL     0x00000400
 #define CLOCAL    0x00000800
 #define CBAUDEX   0x00001000
+#define  BOTHER   0x00001000
 #define  B57600   0x00001001
 #define  B115200  0x00001002
 #define  B230400  0x00001003
@@ -190,6 +201,8 @@ struct ktermios {
 #define CMSPAR    0x40000000  /* mark or space (stick) parity */
 #define CRTSCTS   0x80000000  /* flow control */
 
+#define IBSHIFT   16            /* Shift from CBAUD to CIBAUD */
+
 /* c_lflag bits */
 #define ISIG    0x00000001
 #define ICANON  0x00000002
diff --git a/include/asm-sparc64/termios.h b/include/asm-sparc64/termios.h
index f05d390993d5..ef527211f8a8 100644
--- a/include/asm-sparc64/termios.h
+++ b/include/asm-sparc64/termios.h
@@ -123,6 +123,8 @@ struct winsize {
                 err |= get_user((k)->c_cc[VMIN],  &(u)->c_cc[_VMIN]); \
                 err |= get_user((k)->c_cc[VTIME], &(u)->c_cc[_VTIME]); \
         } \
+        err |= get_user((k)->c_ispeed,  &(u)->c_ispeed); \
+        err |= get_user((k)->c_ospeed,  &(u)->c_ospeed); \
         err; \
 })
 
@@ -142,6 +144,46 @@ struct winsize {
                 err |= put_user((k)->c_cc[VEOF], &(u)->c_cc[VEOF]); \
                 err |= put_user((k)->c_cc[VEOL], &(u)->c_cc[VEOL]); \
         } \
+        err |= put_user((k)->c_ispeed, &(u)->c_ispeed); \
+        err |= put_user((k)->c_ospeed, &(u)->c_ospeed); \
+        err; \
+})
+
+#define user_termios_to_kernel_termios_1(k, u) \
+({ \
+        int err; \
+        err  = get_user((k)->c_iflag, &(u)->c_iflag); \
+        err |= get_user((k)->c_oflag, &(u)->c_oflag); \
+        err |= get_user((k)->c_cflag, &(u)->c_cflag); \
+        err |= get_user((k)->c_lflag, &(u)->c_lflag); \
+        err |= get_user((k)->c_line,  &(u)->c_line); \
+        err |= copy_from_user((k)->c_cc, (u)->c_cc, NCCS); \
+        if((k)->c_lflag & ICANON) { \
+                err |= get_user((k)->c_cc[VEOF], &(u)->c_cc[VEOF]); \
+                err |= get_user((k)->c_cc[VEOL], &(u)->c_cc[VEOL]); \
+        } else { \
+                err |= get_user((k)->c_cc[VMIN],  &(u)->c_cc[_VMIN]); \
+                err |= get_user((k)->c_cc[VTIME], &(u)->c_cc[_VTIME]); \
+        } \
+        err; \
+})
+
+#define kernel_termios_to_user_termios_1(u, k) \
+({ \
+        int err; \
+        err  = put_user((k)->c_iflag, &(u)->c_iflag); \
+        err |= put_user((k)->c_oflag, &(u)->c_oflag); \
+        err |= put_user((k)->c_cflag, &(u)->c_cflag); \
+        err |= put_user((k)->c_lflag, &(u)->c_lflag); \
+        err |= put_user((k)->c_line, &(u)->c_line); \
+        err |= copy_to_user((u)->c_cc, (k)->c_cc, NCCS); \
+        if(!((k)->c_lflag & ICANON)) { \
+                err |= put_user((k)->c_cc[VMIN],  &(u)->c_cc[_VMIN]); \
+                err |= put_user((k)->c_cc[VTIME], &(u)->c_cc[_VTIME]); \
+        } else { \
+                err |= put_user((k)->c_cc[VEOF], &(u)->c_cc[VEOF]); \
+                err |= put_user((k)->c_cc[VEOL], &(u)->c_cc[VEOL]); \
+        } \
         err; \
 })
 
diff --git a/include/linux/of_platform.h b/include/linux/of_platform.h
index 448f70b30a0c..a8efcfeea732 100644
--- a/include/linux/of_platform.h
+++ b/include/linux/of_platform.h
@@ -48,6 +48,10 @@ struct of_platform_driver
 #define to_of_platform_driver(drv) \
         container_of(drv,struct of_platform_driver, driver)
 
+extern int of_register_driver(struct of_platform_driver *drv,
+                              struct bus_type *bus);
+extern void of_unregister_driver(struct of_platform_driver *drv);
+
 #include <asm/of_platform.h>
 
 extern struct of_device *of_find_device_by_node(struct device_node *np);