39 files changed, 164 insertions, 185 deletions

diff --git a/arch/sh/boards/landisk/gio.c b/arch/sh/boards/landisk/gio.c
index 50d38be62f01..a37643d002b2 100644
--- a/arch/sh/boards/landisk/gio.c
+++ b/arch/sh/boards/landisk/gio.c
@@ -69,7 +69,7 @@ static int gio_ioctl(struct inode *inode, struct file *filp,
         }
 
         switch (cmd) {
-        case GIODRV_IOCSGIOSETADDR:     /* addres set */
+        case GIODRV_IOCSGIOSETADDR:     /* address set */
                 addr = data;
                 break;
 
diff --git a/arch/sh/boards/landisk/setup.c b/arch/sh/boards/landisk/setup.c
index 4058b4f50d44..f953c7427769 100644
--- a/arch/sh/boards/landisk/setup.c
+++ b/arch/sh/boards/landisk/setup.c
@@ -44,8 +44,14 @@ static struct platform_device cf_ide_device = {
         },
 };
 
+static struct platform_device rtc_device = {
+        .name           = "rs5c313",
+        .id             = -1,
+};
+
 static struct platform_device *landisk_devices[] __initdata = {
         &cf_ide_device,
+        &rtc_device,
 };
 
 static int __init landisk_devices_setup(void)
diff --git a/arch/sh/boards/renesas/r7780rp/Makefile b/arch/sh/boards/renesas/r7780rp/Makefile
index 609e5d50dde8..b1d20afb4eb3 100644
--- a/arch/sh/boards/renesas/r7780rp/Makefile
+++ b/arch/sh/boards/renesas/r7780rp/Makefile
@@ -3,5 +3,8 @@
 #
 irqinit-y                       := irq-r7780rp.o
 irqinit-$(CONFIG_SH_R7785RP)    := irq-r7785rp.o
+obj-y                           := setup.o irq.o $(irqinit-y)
+
+ifneq ($(CONFIG_SH_R7785RP),y)
 obj-$(CONFIG_PUSH_SWITCH)       += psw.o
-obj-y                           := setup.o irq.o $(irqinit-y)
+endif
diff --git a/arch/sh/boards/snapgear/rtc.c b/arch/sh/boards/snapgear/rtc.c
index 1659fdd6695a..edb3dd936cbb 100644
--- a/arch/sh/boards/snapgear/rtc.c
+++ b/arch/sh/boards/snapgear/rtc.c
@@ -108,7 +108,7 @@ static void ds1302_writebyte(unsigned int addr, unsigned int val)
 static void ds1302_reset(void)
 {
         unsigned long   flags;
-        /* Hardware dependant reset/init */
+        /* Hardware dependent reset/init */
         local_irq_save(flags);
         set_dirp(get_dirp() | RTC_RESET | RTC_IODATA | RTC_SCLK);
         set_dp(get_dp() & ~(RTC_RESET | RTC_IODATA | RTC_SCLK));
diff --git a/arch/sh/boards/superh/microdev/io.c b/arch/sh/boards/superh/microdev/io.c
index 83419bf4c834..b704e20d7e4d 100644
--- a/arch/sh/boards/superh/microdev/io.c
+++ b/arch/sh/boards/superh/microdev/io.c
@@ -198,12 +198,12 @@ void microdev_outb(unsigned char b, unsigned long port)
         /*
          *      There is a board feature with the current SH4-202 MicroDev in
          *      that the 2 byte enables (nBE0 and nBE1) are tied together (and
-         *      to the Chip Select Line (Ethernet_CS)). Due to this conectivity,
+         *      to the Chip Select Line (Ethernet_CS)). Due to this connectivity,
          *      it is not possible to safely perform 8-bit writes to the
          *      Ethernet registers, as 16-bits will be consumed from the Data
          *      lines (corrupting the other byte).  Hence, this function is
-         *      written to impliment 16-bit read/modify/write for all byte-wide
-         *      acceses.
+         *      written to implement 16-bit read/modify/write for all byte-wide
+         *      accesses.
          *
          *      Note: there is no problem with byte READS (even or odd).
          *
diff --git a/arch/sh/boards/superh/microdev/irq.c b/arch/sh/boards/superh/microdev/irq.c
index 8c64baa30364..cc1cb04fa618 100644
--- a/arch/sh/boards/superh/microdev/irq.c
+++ b/arch/sh/boards/superh/microdev/irq.c
@@ -100,7 +100,7 @@ static void disable_microdev_irq(unsigned int irq)
 
         fpgaIrq = fpgaIrqTable[irq].fpgaIrq;
 
-        /* disable interupts on the FPGA INTC register */
+        /* disable interrupts on the FPGA INTC register */
         ctrl_outl(MICRODEV_FPGA_INTC_MASK(fpgaIrq), MICRODEV_FPGA_INTDSB_REG);
 }
 
@@ -125,7 +125,7 @@ static void enable_microdev_irq(unsigned int irq)
         priorities |= MICRODEV_FPGA_INTPRI_LEVEL(fpgaIrq, pri);
         ctrl_outl(priorities, priorityReg);
 
-        /* enable interupts on the FPGA INTC register */
+        /* enable interrupts on the FPGA INTC register */
         ctrl_outl(MICRODEV_FPGA_INTC_MASK(fpgaIrq), MICRODEV_FPGA_INTENB_REG);
 }
 
@@ -152,7 +152,7 @@ extern void __init init_microdev_irq(void)
 {
         int i;
 
-                /* disable interupts on the FPGA INTC register */
+                /* disable interrupts on the FPGA INTC register */
         ctrl_outl(~0ul, MICRODEV_FPGA_INTDSB_REG);
 
         for (i = 0; i < NUM_EXTERNAL_IRQS; i++)
diff --git a/arch/sh/boards/superh/microdev/setup.c b/arch/sh/boards/superh/microdev/setup.c
index 031c814e6e76..6396cea1c896 100644
--- a/arch/sh/boards/superh/microdev/setup.c
+++ b/arch/sh/boards/superh/microdev/setup.c
@@ -349,7 +349,7 @@ static int __init smsc_superio_setup(void)
         SMSC_WRITE_INDEXED(0x00, 0xc7); /* GP47 = nIOWOP */
         SMSC_WRITE_INDEXED(0x08, 0xe8); /* GP20 = nIDE2_OE */
 
-                /* Exit the configuraton state */
+                /* Exit the configuration state */
         outb(SMSC_EXIT_CONFIG_KEY, SMSC_CONFIG_PORT_ADDR);
 
         return 0;
diff --git a/arch/sh/boards/unknown/setup.c b/arch/sh/boards/unknown/setup.c
index 1c941370a2e3..bee4612de59b 100644
--- a/arch/sh/boards/unknown/setup.c
+++ b/arch/sh/boards/unknown/setup.c
@@ -6,7 +6,7 @@
  * May be copied or modified under the terms of the GNU General Public
  * License.  See linux/COPYING for more information.
  *
- * Setup code for an unknown machine (internal peripherials only)
+ * Setup code for an unknown machine (internal peripherals only)
  *
  * This is the simplest of all boards, and serves only as a quick and dirty
  * method to start debugging a new board during bring-up until proper board
diff --git a/arch/sh/drivers/dma/dma-api.c b/arch/sh/drivers/dma/dma-api.c
index e062067edd24..8057a27a1bc6 100644
--- a/arch/sh/drivers/dma/dma-api.c
+++ b/arch/sh/drivers/dma/dma-api.c
@@ -115,7 +115,7 @@ static int search_cap(const char **haystack, const char *needle)
 /**
  * request_dma_bycap - Allocate a DMA channel based on its capabilities
  * @dmac: List of DMA controllers to search
- * @caps: List of capabilites
+ * @caps: List of capabilities
  *
  * Search all channels of all DMA controllers to find a channel which
  * matches the requested capabilities. The result is the channel
diff --git a/arch/sh/drivers/dma/dma-isa.c b/arch/sh/drivers/dma/dma-isa.c
index 05a74ffdb68d..5fb044b791c3 100644
--- a/arch/sh/drivers/dma/dma-isa.c
+++ b/arch/sh/drivers/dma/dma-isa.c
@@ -28,7 +28,7 @@
  * NOTE: ops->xfer() is the preferred way of doing things. However, there
  * are some users of the ISA DMA API that exist in common code that we
  * don't necessarily want to go out of our way to break, so we still
- * allow for some compatability at that level. Any new code is strongly
+ * allow for some compatibility at that level. Any new code is strongly
  * advised to run far away from the ISA DMA API and use the SH DMA API
  * directly.
  */
diff --git a/arch/sh/drivers/dma/dmabrg.c b/arch/sh/drivers/dma/dmabrg.c
index 9d0a29370f21..5e22689c2fcf 100644
--- a/arch/sh/drivers/dma/dmabrg.c
+++ b/arch/sh/drivers/dma/dmabrg.c
@@ -33,7 +33,7 @@
  *     9      | HAC1/SSI1 | rec | half done    | DMABRGI2
  *
  * all can be enabled/disabled in the DMABRGCR register,
- * as well as checked if they occured.
+ * as well as checked if they occurred.
  *
  * DMABRGI0 services  USB  DMA  Address  errors,  but it still must be
  * enabled/acked in the DMABRGCR register.  USB-DMA complete indicator
diff --git a/arch/sh/drivers/pci/ops-dreamcast.c b/arch/sh/drivers/pci/ops-dreamcast.c
index 381306cf5425..e1284fc69361 100644
--- a/arch/sh/drivers/pci/ops-dreamcast.c
+++ b/arch/sh/drivers/pci/ops-dreamcast.c
@@ -57,7 +57,7 @@ struct pci_channel board_pci_channels[] = {
  *
  * Also, we could very easily support both Type 0 and Type 1 configurations
  * here, but since it doesn't seem that there is any such implementation in
- * existance, we don't bother.
+ * existence, we don't bother.
  *
  * I suppose if someone actually gets around to ripping the chip out of
  * the BBA and hanging some more devices off of it, then this might be
diff --git a/arch/sh/drivers/pci/pci-st40.c b/arch/sh/drivers/pci/pci-st40.c
index d67656a44b15..543417ff8314 100644
--- a/arch/sh/drivers/pci/pci-st40.c
+++ b/arch/sh/drivers/pci/pci-st40.c
@@ -292,7 +292,7 @@ int __init st40pci_init(unsigned memStart, unsigned memSize)
                             PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER |
                             PCI_COMMAND_IO);
 
-        /* Accesse to the 0xb0000000 -> 0xb6000000 area will go through to 0x10000000 -> 0x16000000
+        /* Access to the 0xb0000000 -> 0xb6000000 area will go through to 0x10000000 -> 0x16000000
          * on the PCI bus. This allows a nice 1-1 bus to phys mapping.
          */
 
@@ -315,7 +315,7 @@ int __init st40pci_init(unsigned memStart, unsigned memSize)
         ST40PCI_WRITE(CSR_MBAR0, 0);
         ST40PCI_WRITE(LSR0, 0x0fff0001);
 
-        /* ... and set up the initial incomming window to expose all of RAM */
+        /* ... and set up the initial incoming window to expose all of RAM */
         pci_set_rbar_region(7, memStart, memStart, memSize);
 
         /* Maximise timeout values */
@@ -473,7 +473,7 @@ static void pci_set_rbar_region(unsigned int region,     unsigned long localAddr
 
         mask = r2p2(regionSize) - 0x10000;
 
-        /* Diable the region (in case currently in use, should never happen) */
+        /* Disable the region (in case currently in use, should never happen) */
         ST40PCI_WRITE_INDEXED(RSR, region, 0);
 
         /* Start of local address space to publish */
diff --git a/arch/sh/drivers/pci/pci-st40.h b/arch/sh/drivers/pci/pci-st40.h
index d729e0c2d5fe..cf0d35bd135c 100644
--- a/arch/sh/drivers/pci/pci-st40.h
+++ b/arch/sh/drivers/pci/pci-st40.h
@@ -4,7 +4,7 @@
  * May be copied or modified under the terms of the GNU General Public
  * License.  See linux/COPYING for more information.                            
  *
- * Defintions for the ST40 PCI hardware.
+ * Definitions for the ST40 PCI hardware.
  */
 
 #ifndef __PCI_ST40_H__
diff --git a/arch/sh/drivers/superhyway/ops-sh4-202.c b/arch/sh/drivers/superhyway/ops-sh4-202.c
index a55c98a9052b..3b14bf860db6 100644
--- a/arch/sh/drivers/superhyway/ops-sh4-202.c
+++ b/arch/sh/drivers/superhyway/ops-sh4-202.c
@@ -130,7 +130,7 @@ static int sh4202_read_vcr(unsigned long base, struct superhyway_vcr_info *vcr)
          * Some modules (PBR and ePBR for instance) also appear to have
          * VCRL/VCRH flipped in the documentation, but on the SH4-202
          * itself it appears that these are all consistently mapped with
-         * VCRH preceeding VCRL.
+         * VCRH preceding VCRL.
          *
          * Do not trust the documentation, for it is evil.
          */
diff --git a/arch/sh/kernel/cf-enabler.c b/arch/sh/kernel/cf-enabler.c
index 0758d48147a0..849a9e191391 100644
--- a/arch/sh/kernel/cf-enabler.c
+++ b/arch/sh/kernel/cf-enabler.c
@@ -31,7 +31,7 @@
  */
 #if defined(CONFIG_CPU_SH4)
 /* SH4 can't access PCMCIA interface through P2 area.
- * we must remap it with appropreate attribute bit of the page set.
+ * we must remap it with appropriate attribute bit of the page set.
  * this part is based on Greg Banks' hd64465_ss.c implementation - Masahiro Abe */
 
 #if defined(CONFIG_CF_AREA6)
diff --git a/arch/sh/kernel/cpu/clock.c b/arch/sh/kernel/cpu/clock.c
index 014f318f5a05..63251549e9a8 100644
--- a/arch/sh/kernel/cpu/clock.c
+++ b/arch/sh/kernel/cpu/clock.c
@@ -278,6 +278,11 @@ arch_init_clk_ops(struct clk_ops **ops, int type)
 {
 }
 
+void __init __attribute__ ((weak))
+arch_clk_init(void)
+{
+}
+
 static int show_clocks(char *buf, char **start, off_t off,
                        int len, int *eof, void *data)
 {
@@ -314,6 +319,8 @@ int __init clk_init(void)
                 ret |= clk_register(clk);
         }
 
+        arch_clk_init();
+
         /* Kick the child clocks.. */
         propagate_rate(&master_clk);
         propagate_rate(&bus_clk);
diff --git a/arch/sh/kernel/cpu/irq/maskreg.c b/arch/sh/kernel/cpu/irq/maskreg.c
index 492db31b3cab..978992e367a5 100644
--- a/arch/sh/kernel/cpu/irq/maskreg.c
+++ b/arch/sh/kernel/cpu/irq/maskreg.c
@@ -38,7 +38,7 @@ static struct hw_interrupt_type maskreg_irq_type = {
         .end = end_maskreg_irq
 };
 
-/* actual implementatin */
+/* actual implementation */
 static unsigned int startup_maskreg_irq(unsigned int irq)
 {
         enable_maskreg_irq(irq);
diff --git a/arch/sh/kernel/cpu/sh4/fpu.c b/arch/sh/kernel/cpu/sh4/fpu.c
index d61dd599169f..c5a4fc77fa06 100644
--- a/arch/sh/kernel/cpu/sh4/fpu.c
+++ b/arch/sh/kernel/cpu/sh4/fpu.c
@@ -138,7 +138,7 @@ restore_fpu(struct task_struct *tsk)
 /*
  * Load the FPU with signalling NANS.  This bit pattern we're using
  * has the property that no matter wether considered as single or as
- * double precission represents signaling NANS.  
+ * double precision represents signaling NANS.  
  */
 
 static void
diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7750.c b/arch/sh/kernel/cpu/sh4/setup-sh7750.c
index 6f8f458912c7..03b14cf78ddf 100644
--- a/arch/sh/kernel/cpu/sh4/setup-sh7750.c
+++ b/arch/sh/kernel/cpu/sh4/setup-sh7750.c
@@ -106,6 +106,7 @@ static struct ipr_data sh7750_ipr_map[] = {
         { 38, 2,  8, 7 }, /* DMAC DMAE */
 };
 
+#ifdef CONFIG_CPU_SUBTYPE_SH7751
 static struct ipr_data sh7751_ipr_map[] = {
         { 44, 2,  8, 7 }, /* DMAC DMTE4 */
         { 45, 2,  8, 7 }, /* DMAC DMTE5 */
@@ -117,6 +118,7 @@ static struct ipr_data sh7751_ipr_map[] = {
         /*{ 72, INTPRI00,  8, ? },*/ /* TMU3 TUNI */
         /*{ 76, INTPRI00, 12, ? },*/ /* TMU4 TUNI */
 };
+#endif
 
 static unsigned long ipr_offsets[] = {
         0xffd00004UL,   /* 0: IPRA */
diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7722.c b/arch/sh/kernel/cpu/sh4a/clock-sh7722.c
index 29090035bc5b..51b386d454de 100644
--- a/arch/sh/kernel/cpu/sh4a/clock-sh7722.c
+++ b/arch/sh/kernel/cpu/sh4a/clock-sh7722.c
@@ -17,7 +17,6 @@
 #include <asm/clock.h>
 #include <asm/freq.h>
 
-#define SH7722_PLL_FREQ (32000000/8)
 #define N  (-1)
 #define NM (-2)
 #define ROUND_NEAREST 0
@@ -141,28 +140,36 @@ static void adjust_clocks(int originate, int *l, unsigned long v[],
 */
 static int divisors2[] = { 2, 3, 4, 5, 6, 8, 10, 12, 16, 20, 24, 32, 40 };
 
+static void master_clk_recalc(struct clk *clk)
+{
+        unsigned frqcr = ctrl_inl(FRQCR);
+
+        clk->rate = CONFIG_SH_PCLK_FREQ * (((frqcr >> 24) & 0x1f) + 1);
+}
+
 static void master_clk_init(struct clk *clk)
 {
-        clk_set_rate(clk, clk_get_rate(clk));
+        clk->parent = NULL;
+        clk->flags |= CLK_RATE_PROPAGATES;
+        clk->rate = CONFIG_SH_PCLK_FREQ;
+        master_clk_recalc(clk);
 }
 
-static void master_clk_recalc(struct clk *clk)
+
+static void module_clk_recalc(struct clk *clk)
 {
         unsigned long frqcr = ctrl_inl(FRQCR);
 
-        clk->rate = CONFIG_SH_PCLK_FREQ * (1 + (frqcr >> 24 & 0xF));
+        clk->rate = clk->parent->rate / (((frqcr >> 24) & 0x1f) + 1);
 }
 
 static int master_clk_setrate(struct clk *clk, unsigned long rate, int id)
 {
-        int div = rate / SH7722_PLL_FREQ;
+        int div = rate / clk->rate;
         int master_divs[] = { 2, 3, 4, 6, 8, 16 };
         int index;
         unsigned long frqcr;
 
-        if (rate < SH7722_PLL_FREQ * 2)
-                return -EINVAL;
-
         for (index = 1; index < ARRAY_SIZE(master_divs); index++)
                 if (div >= master_divs[index - 1] && div < master_divs[index])
                         break;
@@ -185,6 +192,10 @@ static struct clk_ops sh7722_master_clk_ops = {
         .set_rate = master_clk_setrate,
 };
 
+static struct clk_ops sh7722_module_clk_ops = {
+       .recalc = module_clk_recalc,
+};
+
 struct frqcr_context {
         unsigned mask;
         unsigned shift;
@@ -489,7 +500,7 @@ static void sh7722_siu_recalc(struct clk *clk)
 
         if (siu < 0)
                 return /* siu */ ;
-        BUG_ON(siu > 1);
+        BUG_ON(siu > 2);
         r = ctrl_inl(sh7722_siu_regs[siu]);
         clk->rate = clk->parent->rate * 2 / divisors2[r & 0xF];
 }
@@ -571,7 +582,7 @@ static struct clk *sh7722_clocks[] = {
  */
 struct clk_ops *onchip_ops[] = {
         &sh7722_master_clk_ops,
-        &sh7722_frqcr_clk_ops,
+        &sh7722_module_clk_ops,
         &sh7722_frqcr_clk_ops,
         &sh7722_frqcr_clk_ops,
 };
@@ -583,7 +594,7 @@ arch_init_clk_ops(struct clk_ops **ops, int type)
         *ops = onchip_ops[type];
 }
 
-int __init sh7722_clock_init(void)
+int __init arch_clk_init(void)
 {
         struct clk *master;
         int i;
@@ -597,4 +608,3 @@ int __init sh7722_clock_init(void)
         clk_put(master);
         return 0;
 }
-arch_initcall(sh7722_clock_init);
diff --git a/arch/sh/kernel/kgdb_stub.c b/arch/sh/kernel/kgdb_stub.c
index a5323364cbca..edd1ec214e6d 100644
--- a/arch/sh/kernel/kgdb_stub.c
+++ b/arch/sh/kernel/kgdb_stub.c
@@ -2,7 +2,7 @@
  * May be copied or modified under the terms of the GNU General Public
  * License.  See linux/COPYING for more information.
  *
- * Containes extracts from code by Glenn Engel, Jim Kingdon,
+ * Contains extracts from code by Glenn Engel, Jim Kingdon,
  * David Grothe <dave@gcom.com>, Tigran Aivazian <tigran@sco.com>,
  * Amit S. Kale <akale@veritas.com>,  William Gatliff <bgat@open-widgets.com>,
  * Ben Lee, Steve Chamberlain and Benoit Miller <fulg@iname.com>.
@@ -85,7 +85,7 @@
  *
  * Responses can be run-length encoded to save space.  A '*' means that
  * the next character is an ASCII encoding giving a repeat count which
- * stands for that many repititions of the character preceding the '*'.
+ * stands for that many repetitions of the character preceding the '*'.
  * The encoding is n+29, yielding a printable character where n >=3
  * (which is where RLE starts to win).  Don't use an n > 126.
  *
diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c
index 6b4f5748d0be..a11e2aa73cbc 100644
--- a/arch/sh/kernel/process.c
+++ b/arch/sh/kernel/process.c
@@ -26,8 +26,6 @@
 static int hlt_counter;
 int ubc_usercnt = 0;
 
-#define HARD_IDLE_TIMEOUT (HZ / 3)
-
 void (*pm_idle)(void);
 void (*pm_power_off)(void);
 EXPORT_SYMBOL(pm_power_off);
@@ -44,16 +42,39 @@ void enable_hlt(void)
 }
 EXPORT_SYMBOL(enable_hlt);
 
+static int __init nohlt_setup(char *__unused)
+{
+        hlt_counter = 1;
+        return 1;
+}
+__setup("nohlt", nohlt_setup);
+
+static int __init hlt_setup(char *__unused)
+{
+        hlt_counter = 0;
+        return 1;
+}
+__setup("hlt", hlt_setup);
+
 void default_idle(void)
 {
-        if (!hlt_counter)
-                cpu_sleep();
-        else
-                cpu_relax();
+        if (!hlt_counter) {
+                clear_thread_flag(TIF_POLLING_NRFLAG);
+                smp_mb__after_clear_bit();
+                set_bl_bit();
+                while (!need_resched())
+                        cpu_sleep();
+                clear_bl_bit();
+                set_thread_flag(TIF_POLLING_NRFLAG);
+        } else
+                while (!need_resched())
+                        cpu_relax();
 }
 
 void cpu_idle(void)
 {
+        set_thread_flag(TIF_POLLING_NRFLAG);
+
         /* endless idle loop with no priority at all */
         while (1) {
                 void (*idle)(void) = pm_idle;
diff --git a/arch/sh/kernel/syscalls.S b/arch/sh/kernel/syscalls.S
index 4357d1a6358f..7db1c2dc5992 100644
--- a/arch/sh/kernel/syscalls.S
+++ b/arch/sh/kernel/syscalls.S
@@ -355,3 +355,6 @@ ENTRY(sys_call_table)
         .long sys_getcpu
         .long sys_epoll_pwait
         .long sys_utimensat             /* 320 */
+        .long sys_signalfd
+        .long sys_timerfd
+        .long sys_eventfd
diff --git a/arch/sh/kernel/traps.c b/arch/sh/kernel/traps.c
index 3a197649cd83..5b75cb6f8f9b 100644
--- a/arch/sh/kernel/traps.c
+++ b/arch/sh/kernel/traps.c
@@ -21,6 +21,7 @@
 #include <linux/bug.h>
 #include <linux/debug_locks.h>
 #include <linux/kdebug.h>
+#include <linux/kexec.h>
 #include <linux/limits.h>
 #include <asm/system.h>
 #include <asm/uaccess.h>
@@ -101,6 +102,16 @@ void die(const char * str, struct pt_regs * regs, long err)
 
         bust_spinlocks(0);
         spin_unlock_irq(&die_lock);
+
+        if (kexec_should_crash(current))
+                crash_kexec(regs);
+
+        if (in_interrupt())
+                panic("Fatal exception in interrupt");
+
+        if (panic_on_oops)
+                panic("Fatal exception");
+
         do_exit(SIGSEGV);
 }
 
@@ -513,7 +524,7 @@ static int handle_unaligned_access(u16 instruction, struct pt_regs *regs)
  *       misaligned data access
  *       access to >= 0x80000000 is user mode
  * Unfortuntaly we can't distinguish between instruction address error
- * and data address errors caused by read acceses.
+ * and data address errors caused by read accesses.
  */
 asmlinkage void do_address_error(struct pt_regs *regs,
                                  unsigned long writeaccess,
diff --git a/arch/sh/math-emu/math.c b/arch/sh/math-emu/math.c
index 1efbac15ff4e..a38e1eed9e77 100644
--- a/arch/sh/math-emu/math.c
+++ b/arch/sh/math-emu/math.c
@@ -148,7 +148,7 @@ fmac(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, int m, int n)
         return 0;
 }
 
-// to process fmov's extention (odd n for DR access XD).
+// to process fmov's extension (odd n for DR access XD).
 #define FMOV_EXT(x) if(x&1) x+=16-1
 
 static int
diff --git a/arch/sh/mm/copy_page.S b/arch/sh/mm/copy_page.S
index 397c94c97315..ae039f2da162 100644
--- a/arch/sh/mm/copy_page.S
+++ b/arch/sh/mm/copy_page.S
@@ -129,6 +129,7 @@ ENTRY(__copy_user_page)
         rts
          nop
 #endif
+        .align 2
 .Lpsz:  .long   PAGE_SIZE
 /*
  * __kernel_size_t __copy_user(void *to, const void *from, __kernel_size_t n);
diff --git a/arch/sh/mm/fault.c b/arch/sh/mm/fault.c
index 9207da67ff8a..c878faa4ae46 100644
--- a/arch/sh/mm/fault.c
+++ b/arch/sh/mm/fault.c
@@ -15,43 +15,11 @@
 #include <linux/mm.h>
 #include <linux/hardirq.h>
 #include <linux/kprobes.h>
-#include <linux/kdebug.h>
 #include <asm/system.h>
 #include <asm/mmu_context.h>
 #include <asm/tlbflush.h>
 #include <asm/kgdb.h>
 
-#ifdef CONFIG_KPROBES
-ATOMIC_NOTIFIER_HEAD(notify_page_fault_chain);
-
-/* Hook to register for page fault notifications */
-int register_page_fault_notifier(struct notifier_block *nb)
-{
-        return atomic_notifier_chain_register(&notify_page_fault_chain, nb);
-}
-
-int unregister_page_fault_notifier(struct notifier_block *nb)
-{
-        return atomic_notifier_chain_unregister(&notify_page_fault_chain, nb);
-}
-
-static inline int notify_page_fault(enum die_val val, struct pt_regs *regs,
-                                    int trap, int sig)
-{
-        struct die_args args = {
-                .regs = regs,
-                .trapnr = trap,
-        };
-        return atomic_notifier_call_chain(&notify_page_fault_chain, val, &args);
-}
-#else
-static inline int notify_page_fault(enum die_val val, struct pt_regs *regs,
-                                    int trap, int sig)
-{
-        return NOTIFY_DONE;
-}
-#endif
-
 /*
  * This routine handles page faults.  It determines the address,
  * and the problem, and then passes it off to one of the appropriate
@@ -69,11 +37,6 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
         siginfo_t info;
 
         trace_hardirqs_on();
-
-        if (notify_page_fault(DIE_PAGE_FAULT, regs,
-                              writeaccess, SIGSEGV) == NOTIFY_STOP)
-                return;
-
         local_irq_enable();
 
 #ifdef CONFIG_SH_KGDB
@@ -285,7 +248,7 @@ asmlinkage int __kprobes __do_page_fault(struct pt_regs *regs,
         pte_t *pte;
         pte_t entry;
         struct mm_struct *mm = current->mm;
-        spinlock_t *ptl;
+        spinlock_t *ptl = NULL;
         int ret = 1;
 
 #ifdef CONFIG_SH_KGDB
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index 8fe223a890ed..e0e644ff3204 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -12,6 +12,7 @@
 #include <linux/init.h>
 #include <linux/bootmem.h>
 #include <linux/proc_fs.h>
+#include <linux/pagemap.h>
 #include <linux/percpu.h>
 #include <linux/io.h>
 #include <asm/mmu_context.h>
@@ -112,7 +113,7 @@ static void set_pte_phys(unsigned long addr, unsigned long phys, pgprot_t prot)
  * As a performance optimization, other platforms preserve the fixmap mapping
  * across a context switch, we don't presently do this, but this could be done
  * in a similar fashion as to the wired TLB interface that sh64 uses (by way
- * of the memorry mapped UTLB configuration) -- this unfortunately forces us to
+ * of the memory mapped UTLB configuration) -- this unfortunately forces us to
  * give up a TLB entry for each mapping we want to preserve. While this may be
  * viable for a small number of fixmaps, it's not particularly useful for
  * everything and needs to be carefully evaluated. (ie, we may want this for
diff --git a/arch/sh/mm/pmb.c b/arch/sh/mm/pmb.c
index 02aae06527dc..b6a5a338145b 100644
--- a/arch/sh/mm/pmb.c
+++ b/arch/sh/mm/pmb.c
@@ -3,7 +3,7 @@
  *
  * Privileged Space Mapping Buffer (PMB) Support.
  *
- * Copyright (C) 2005, 2006 Paul Mundt
+ * Copyright (C) 2005, 2006, 2007 Paul Mundt
  *
  * P1/P2 Section mapping definitions from map32.h, which was:
  *
@@ -68,6 +68,32 @@ static inline unsigned long mk_pmb_data(unsigned int entry)
         return mk_pmb_entry(entry) | PMB_DATA;
 }
 
+static DEFINE_SPINLOCK(pmb_list_lock);
+static struct pmb_entry *pmb_list;
+
+static inline void pmb_list_add(struct pmb_entry *pmbe)
+{
+        struct pmb_entry **p, *tmp;
+
+        p = &pmb_list;
+        while ((tmp = *p) != NULL)
+                p = &tmp->next;
+
+        pmbe->next = tmp;
+        *p = pmbe;
+}
+
+static inline void pmb_list_del(struct pmb_entry *pmbe)
+{
+        struct pmb_entry **p, *tmp;
+
+        for (p = &pmb_list; (tmp = *p); p = &tmp->next)
+                if (tmp == pmbe) {
+                        *p = tmp->next;
+                        return;
+                }
+}
+
 struct pmb_entry *pmb_alloc(unsigned long vpn, unsigned long ppn,
                             unsigned long flags)
 {
@@ -81,11 +107,19 @@ struct pmb_entry *pmb_alloc(unsigned long vpn, unsigned long ppn,
         pmbe->ppn       = ppn;
         pmbe->flags     = flags;
 
+        spin_lock_irq(&pmb_list_lock);
+        pmb_list_add(pmbe);
+        spin_unlock_irq(&pmb_list_lock);
+
         return pmbe;
 }
 
 void pmb_free(struct pmb_entry *pmbe)
 {
+        spin_lock_irq(&pmb_list_lock);
+        pmb_list_del(pmbe);
+        spin_unlock_irq(&pmb_list_lock);
+
         kmem_cache_free(pmb_cache, pmbe);
 }
 
@@ -167,31 +201,6 @@ void clear_pmb_entry(struct pmb_entry *pmbe)
         clear_bit(entry, &pmb_map);
 }
 
-static DEFINE_SPINLOCK(pmb_list_lock);
-static struct pmb_entry *pmb_list;
-
-static inline void pmb_list_add(struct pmb_entry *pmbe)
-{
-        struct pmb_entry **p, *tmp;
-
-        p = &pmb_list;
-        while ((tmp = *p) != NULL)
-                p = &tmp->next;
-
-        pmbe->next = tmp;
-        *p = pmbe;
-}
-
-static inline void pmb_list_del(struct pmb_entry *pmbe)
-{
-        struct pmb_entry **p, *tmp;
-
-        for (p = &pmb_list; (tmp = *p); p = &tmp->next)
-                if (tmp == pmbe) {
-                        *p = tmp->next;
-                        return;
-                }
-}
 
 static struct {
         unsigned long size;
@@ -283,25 +292,14 @@ void pmb_unmap(unsigned long addr)
         } while (pmbe);
 }
 
-static void pmb_cache_ctor(void *pmb, struct kmem_cache *cachep, unsigned long flags)
+static void pmb_cache_ctor(void *pmb, struct kmem_cache *cachep,
+                           unsigned long flags)
 {
         struct pmb_entry *pmbe = pmb;
 
         memset(pmb, 0, sizeof(struct pmb_entry));
 
-        spin_lock_irq(&pmb_list_lock);
-
         pmbe->entry = PMB_NO_ENTRY;
-        pmb_list_add(pmbe);
-
-        spin_unlock_irq(&pmb_list_lock);
-}
-
-static void pmb_cache_dtor(void *pmb, struct kmem_cache *cachep, unsigned long flags)
-{
-        spin_lock_irq(&pmb_list_lock);
-        pmb_list_del(pmb);
-        spin_unlock_irq(&pmb_list_lock);
 }
 
 static int __init pmb_init(void)
@@ -312,8 +310,7 @@ static int __init pmb_init(void)
         BUG_ON(unlikely(nr_entries >= NR_PMB_ENTRIES));
 
         pmb_cache = kmem_cache_create("pmb", sizeof(struct pmb_entry), 0,
-                                      SLAB_PANIC, pmb_cache_ctor,
-                                      pmb_cache_dtor);
+                                      SLAB_PANIC, pmb_cache_ctor, NULL);
 
         jump_to_P2();
 
diff --git a/arch/sh/tools/mach-types b/arch/sh/tools/mach-types
index 554f801db67b..fb40f188aff9 100644
--- a/arch/sh/tools/mach-types
+++ b/arch/sh/tools/mach-types
@@ -7,8 +7,11 @@
 #
 SE                      SH_SOLUTION_ENGINE
 7751SE                  SH_7751_SOLUTION_ENGINE         
+7722SE                  SH_7722_SOLUTION_ENGINE         
 7300SE                  SH_7300_SOLUTION_ENGINE
 7343SE                  SH_7343_SOLUTION_ENGINE
+7206SE                  SH_7206_SOLUTION_ENGINE
+7619SE                  SH_7619_SOLUTION_ENGINE
 7780SE                  SH_7780_SOLUTION_ENGINE
 73180SE                 SH_73180_SOLUTION_ENGINE
 7751SYSTEMH             SH_7751_SYSTEMH
@@ -31,5 +34,3 @@ R7785RP			SH_R7785RP
 TITAN                   SH_TITAN
 SHMIN                   SH_SHMIN
 7710VOIPGW              SH_7710VOIPGW
-7206SE                  SH_7206_SOLUTION_ENGINE
-7619SE                  SH_7619_SOLUTION_ENGINE
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index abcafac64738..ef683ebd367c 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -815,7 +815,7 @@ config SGI_IP27_RTC
 
 config GEN_RTC
         tristate "Generic /dev/rtc emulation"
-        depends on RTC!=y && !IA64 && !ARM && !M32R && !SPARC && !FRV && !S390
+        depends on RTC!=y && !IA64 && !ARM && !M32R && !SPARC && !FRV && !S390 && !SUPERH
         ---help---
           If you say Y here and create a character special file /dev/rtc with
           major number 10 and minor number 135 using mknod ("man mknod"), you
diff --git a/drivers/input/touchscreen/hp680_ts_input.c b/drivers/input/touchscreen/hp680_ts_input.c
index 61c15024c2a0..1a15475aedfc 100644
--- a/drivers/input/touchscreen/hp680_ts_input.c
+++ b/drivers/input/touchscreen/hp680_ts_input.c
@@ -1,7 +1,6 @@
 #include <linux/input.h>
 #include <linux/module.h>
 #include <linux/init.h>
-
 #include <linux/interrupt.h>
 #include <asm/io.h>
 #include <asm/delay.h>
@@ -18,12 +17,12 @@
 #define PHDR    0xa400012e
 #define SCPDR   0xa4000136
 
-static void do_softint(void *data);
+static void do_softint(struct work_struct *work);
 
 static struct input_dev *hp680_ts_dev;
-static DECLARE_WORK(work, do_softint);
+static DECLARE_DELAYED_WORK(work, do_softint);
 
-static void do_softint(void *data)
+static void do_softint(struct work_struct *work)
 {
         int absx = 0, absy = 0;
         u8 scpdr;
diff --git a/fs/Kconfig.binfmt b/fs/Kconfig.binfmt
index 74c64409ddbc..d4fc6095466d 100644
--- a/fs/Kconfig.binfmt
+++ b/fs/Kconfig.binfmt
@@ -38,7 +38,7 @@ config BINFMT_ELF_FDPIC
 
 config BINFMT_FLAT
         tristate "Kernel support for flat binaries"
-        depends on !MMU || SUPERH
+        depends on !MMU
         help
           Support uClinux FLAT format binaries.
 
diff --git a/include/asm-sh/dreamcast/sysasic.h b/include/asm-sh/dreamcast/sysasic.h
index 7874e3dac736..f33426608a87 100644
--- a/include/asm-sh/dreamcast/sysasic.h
+++ b/include/asm-sh/dreamcast/sysasic.h
@@ -23,7 +23,7 @@
    takes.
 */
 
-#define HW_EVENT_IRQ_BASE  OFFCHIP_IRQ_BASE /* 48 */
+#define HW_EVENT_IRQ_BASE  48
 
 /* IRQ 13 */
 #define HW_EVENT_VSYNC     (HW_EVENT_IRQ_BASE +  5) /* VSync */
diff --git a/include/asm-sh/kdebug.h b/include/asm-sh/kdebug.h
index 16578b7c9da1..382cfc7deb73 100644
--- a/include/asm-sh/kdebug.h
+++ b/include/asm-sh/kdebug.h
@@ -6,10 +6,6 @@
 /* Grossly misnamed. */
 enum die_val {
         DIE_TRAP,
-        DIE_PAGE_FAULT,
 };
 
-int register_page_fault_notifier(struct notifier_block *nb);
-int unregister_page_fault_notifier(struct notifier_block *nb);
-
 #endif /* __ASM_SH_KDEBUG_H */
diff --git a/include/asm-sh/landisk/gio.h b/include/asm-sh/landisk/gio.h
index 3fce4c451a46..35d7368b718a 100644
--- a/include/asm-sh/landisk/gio.h
+++ b/include/asm-sh/landisk/gio.h
@@ -29,16 +29,8 @@
 #define GIODRV_IOCGGIODATA4   _IOR(GIODRV_IOC_MAGIC,  6, unsigned long *)
 #define GIODRV_IOCSGIOSETADDR _IOW(GIODRV_IOC_MAGIC,  7, unsigned long *)
 #define GIODRV_IOCHARDRESET   _IO(GIODRV_IOC_MAGIC, 8) /* debugging tool */
-
-#define GIODRV_IOCSGIO_LED    _IOW(GIODRV_IOC_MAGIC,  9, unsigned long *)
-#define GIODRV_IOCGGIO_LED    _IOR(GIODRV_IOC_MAGIC,  10, unsigned long *)
-#define GIODRV_IOCSGIO_BUZZER _IOW(GIODRV_IOC_MAGIC,  11, unsigned long *)
-#define GIODRV_IOCGGIO_LANDISK _IOR(GIODRV_IOC_MAGIC,  14, unsigned long *)
-#define GIODRV_IOCGGIO_BTN _IOR(GIODRV_IOC_MAGIC,  22, unsigned long *)
-#define GIODRV_IOCSGIO_BTNPID _IOW(GIODRV_IOC_MAGIC,  23, unsigned long *)
-#define GIODRV_IOCGGIO_BTNPID _IOR(GIODRV_IOC_MAGIC,  24, unsigned long *)
-
 #define GIODRV_IOC_MAXNR 8
+
 #define GIO_READ 0x00000000
 #define GIO_WRITE 0x00000001
 
diff --git a/include/asm-sh/landisk/iodata_landisk.h b/include/asm-sh/landisk/iodata_landisk.h
index c74d3c73f377..6fb04ab38b9f 100644
--- a/include/asm-sh/landisk/iodata_landisk.h
+++ b/include/asm-sh/landisk/iodata_landisk.h
@@ -22,16 +22,6 @@
 /* 2003.10.31 I-O DATA NSD NWG  add.    for shutdown port clear */
 #define PA_PWRINT_CLR   0xb0000006      /* Shutdown Interrupt clear Register */
 
-#define PA_LCD_CLRDSP   0x00            /* LCD Clear Display Offset */
-#define PA_LCD_RTNHOME  0x00            /* LCD Return Home Offset */
-#define PA_LCD_ENTMODE  0x00            /* LCD Entry Mode Offset */
-#define PA_LCD_DSPCTL   0x00            /* LCD Display ON/OFF Control Offset */
-#define PA_LCD_FUNC     0x00            /* LCD Function Set Offset */
-#define PA_LCD_CGRAM    0x00            /* LCD Set CGRAM Address Offset */
-#define PA_LCD_DDRAM    0x00            /* LCD Set DDRAM Address Offset */
-#define PA_LCD_RDFLAG   0x01            /* LCD Read Busy Flag Offset */
-#define PA_LCD_WTDATA   0x02            /* LCD Write Datat to RAM Offset */
-#define PA_LCD_RDDATA   0x03            /* LCD Read Data from RAM Offset */
 #define PA_PIDE_OFFSET  0x40            /* CF IDE Offset */
 #define PA_SIDE_OFFSET  0x40            /* HDD IDE Offset */
 
@@ -45,33 +35,6 @@
 #define IRQ_BUTTON      12              /* USL-5P Button IRQ */
 #define IRQ_FAULT       13              /* USL-5P Fault  IRQ */
 
-#define SHUTDOWN_BTN_MAJOR      99      /* Shutdown button device major no. */
-
-#define SHUTDOWN_LOOP_CNT       5       /* Shutdown button Detection loop */
-#define SHUTDOWN_DELAY          200     /* Shutdown button delay value(ms) */
-
-
-/* added by kogiidena */
-/*
- *  landisk_ledparam
- *
- * led  ------10 -6543210 -6543210 -6543210
- *     |000000..|0.......|0.......|U.......|
- *     |  HARD  |fastblik| blink  |   on   |
- *
- *   led0: power       U:update flag
- *   led1: error
- *   led2: usb1
- *   led3: usb2
- *   led4: usb3
- *   led5: usb4
- *   led6: usb5
- *
- */
-extern int landisk_ledparam;    /* from setup.c */
-extern int landisk_buzzerparam; /* from setup.c */
-extern int landisk_arch;        /* from setup.c */
-
 #define __IO_PREFIX landisk
 #include <asm/io_generic.h>
 
diff --git a/include/asm-sh/unistd.h b/include/asm-sh/unistd.h
index af71e379a5ee..77bcb09d6ac8 100644
--- a/include/asm-sh/unistd.h
+++ b/include/asm-sh/unistd.h
@@ -329,8 +329,11 @@
 #define __NR_getcpu             318
 #define __NR_epoll_pwait        319
 #define __NR_utimensat          320
+#define __NR_signalfd           321
+#define __NR_timerfd            322
+#define __NR_eventfd            323
 
-#define NR_syscalls 321
+#define NR_syscalls 324
 
 #ifdef __KERNEL__