Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6:
  sh: SH-4A UBC support
  sh: interrupt exception handling rework
  sh: Default enable R7780RP IRQs.
  sh: Zero-out coherent buffer in consistent_alloc().
  sh: Convert IPR-IRQ to IRQ chip.
  sh: Convert INTC2 IRQ handler to irq_chip.
  sh: Fix pr_debug statements for sh4
  sh: Convert r7780rp IRQ handler to IRQ chip.
  sh: Updates for IRQ handler changes.
  sh: Kill off timer_ops get_frequency().
  sh: First step at generic timeofday support.

32 files changed, 249 insertions, 1100 deletions

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index f6a0c4436168..6a461d4caeff 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -45,6 +45,9 @@ config GENERIC_CALIBRATE_DELAY
 config GENERIC_IOMAP
 	bool
 
+config GENERIC_TIME
+	def_bool n
+
 config ARCH_MAY_HAVE_PC_FDC
 	bool
 
@@ -357,6 +360,7 @@ config CPU_HAS_SR_RB
 endmenu
 
 menu "Timer support"
+depends on !GENERIC_TIME
 
 config SH_TMU
 	bool "TMU timer support"
diff --git a/arch/sh/boards/hp6xx/hp6xx_apm.c b/arch/sh/boards/hp6xx/hp6xx_apm.c
index 75f91aaae077..219179114f0f 100644
--- a/arch/sh/boards/hp6xx/hp6xx_apm.c
+++ b/arch/sh/boards/hp6xx/hp6xx_apm.c
@@ -83,7 +83,7 @@ static int hp6x0_apm_get_info(char *buf, char **start, off_t fpos, int length)
 	return p - buf;
 }
 
-static irqreturn_t hp6x0_apm_interrupt(int irq, void *dev, struct pt_regs *regs)
+static irqreturn_t hp6x0_apm_interrupt(int irq, void *dev)
 {
 	if (!apm_suspended)
 		apm_queue_event(APM_USER_SUSPEND);
@@ -96,7 +96,7 @@ static int __init hp6x0_apm_init(void)
 	int ret;
 
 	ret = request_irq(HP680_BTN_IRQ, hp6x0_apm_interrupt,
-			  SA_INTERRUPT, MODNAME, 0);
+			  IRQF_DISABLED, MODNAME, 0);
 	if (unlikely(ret < 0)) {
 		printk(KERN_ERR MODNAME ": IRQ %d request failed\n",
 		       HP680_BTN_IRQ);
diff --git a/arch/sh/boards/landisk/landisk_pwb.c b/arch/sh/boards/landisk/landisk_pwb.c
index 0b7bee1a9ca5..e62524978160 100644
--- a/arch/sh/boards/landisk/landisk_pwb.c
+++ b/arch/sh/boards/landisk/landisk_pwb.c
@@ -135,7 +135,7 @@ static int swdrv_write(struct file *filp, const char *buff, size_t count,
 	return count;
 }
 
-static irqreturn_t sw_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t sw_interrupt(int irq, void *dev_id)
 {
 	landisk_btn = (0x0ff & (~ctrl_inb(PA_STATUS)));
 	disable_irq(IRQ_BUTTON);
diff --git a/arch/sh/boards/mpc1211/setup.c b/arch/sh/boards/mpc1211/setup.c
index 01c10fa5c058..7c3d1d304157 100644
--- a/arch/sh/boards/mpc1211/setup.c
+++ b/arch/sh/boards/mpc1211/setup.c
@@ -69,7 +69,6 @@ static void __init pci_write_config(unsigned long busNo,
 
 static unsigned char m_irq_mask = 0xfb;
 static unsigned char s_irq_mask = 0xff;
-volatile unsigned long irq_err_count;
 
 static void disable_mpc1211_irq(unsigned int irq)
 {
@@ -118,7 +117,7 @@ static void mask_and_ack_mpc1211(unsigned int irq)
 	if(irq < 8) {
 		if(m_irq_mask & (1<<irq)){
 		  if(!mpc1211_irq_real(irq)){
-		    irq_err_count++;
+		    atomic_inc(&irq_err_count)
 		    printk("spurious 8259A interrupt: IRQ %x\n",irq);
 		   }
 		} else {
@@ -131,7 +130,7 @@ static void mask_and_ack_mpc1211(unsigned int irq)
 	} else {
 		if(s_irq_mask & (1<<(irq - 8))){
 		  if(!mpc1211_irq_real(irq)){
-		    irq_err_count++;
+		    atomic_inc(&irq_err_count);
 		    printk("spurious 8259A interrupt: IRQ %x\n",irq);
 		  }
 		} else {
diff --git a/arch/sh/boards/renesas/r7780rp/irq.c b/arch/sh/boards/renesas/r7780rp/irq.c
index 2d960e9a3143..b544772cbc72 100644
--- a/arch/sh/boards/renesas/r7780rp/irq.c
+++ b/arch/sh/boards/renesas/r7780rp/irq.c
@@ -1,18 +1,16 @@
 /*
- * linux/arch/sh/boards/renesas/r7780rp/irq.c
- *
- * Copyright (C) 2000  Kazumoto Kojima
- *
  * Renesas Solutions Highlander R7780RP-1 Support.
  *
- * Modified for R7780RP-1 by
- * Atom Create Engineering Co., Ltd. 2002.
+ * Copyright (C) 2002  Atom Create Engineering Co., Ltd.
+ * Copyright (C) 2006  Paul Mundt
+ *
+ * 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.
  */
 #include <linux/init.h>
 #include <linux/irq.h>
 #include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/r7780rp/r7780rp.h>
 
 #ifdef CONFIG_SH_R7780MP
 static int mask_pos[] = {12, 11, 9, 14, 15, 8, 13, 6, 5, 4, 3, 2, 0, 0, 1, 0};
@@ -20,71 +18,26 @@ static int mask_pos[] = {12, 11, 9, 14, 15, 8, 13, 6, 5, 4, 3, 2, 0, 0, 1, 0};
 static int mask_pos[] = {15, 14, 13, 12, 11, 10, 9, 8, 7, 5, 6, 4, 0, 1, 2, 0};
 #endif
 
-static void enable_r7780rp_irq(unsigned int irq);
-static void disable_r7780rp_irq(unsigned int irq);
-
-/* shutdown is same as "disable" */
-#define shutdown_r7780rp_irq disable_r7780rp_irq
-
-static void ack_r7780rp_irq(unsigned int irq);
-static void end_r7780rp_irq(unsigned int irq);
-
-static unsigned int startup_r7780rp_irq(unsigned int irq)
-{
-	enable_r7780rp_irq(irq);
-	return 0; /* never anything pending */
-}
-
-static void disable_r7780rp_irq(unsigned int irq)
-{
-	unsigned short val;
-	unsigned short mask = 0xffff ^ (0x0001 << mask_pos[irq]);
-
-	/* Set the priority in IPR to 0 */
-	val = ctrl_inw(IRLCNTR1);
-	val &= mask;
-	ctrl_outw(val, IRLCNTR1);
-}
-
 static void enable_r7780rp_irq(unsigned int irq)
 {
-	unsigned short val;
-	unsigned short value = (0x0001 << mask_pos[irq]);
-
 	/* Set priority in IPR back to original value */
-	val = ctrl_inw(IRLCNTR1);
-	val |= value;
-	ctrl_outw(val, IRLCNTR1);
-}
-
-static void ack_r7780rp_irq(unsigned int irq)
-{
-	disable_r7780rp_irq(irq);
+	ctrl_outw(ctrl_inw(IRLCNTR1) | (1 << mask_pos[irq]), IRLCNTR1);
 }
 
-static void end_r7780rp_irq(unsigned int irq)
+static void disable_r7780rp_irq(unsigned int irq)
 {
-	if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
-		enable_r7780rp_irq(irq);
+	/* Set the priority in IPR to 0 */
+	ctrl_outw(ctrl_inw(IRLCNTR1) & (0xffff ^ (1 << mask_pos[irq])),
+		  IRLCNTR1);
 }
 
-static struct hw_interrupt_type r7780rp_irq_type = {
-	.typename = "R7780RP-IRQ",
-	.startup = startup_r7780rp_irq,
-	.shutdown = shutdown_r7780rp_irq,
-	.enable = enable_r7780rp_irq,
-	.disable = disable_r7780rp_irq,
-	.ack = ack_r7780rp_irq,
-	.end = end_r7780rp_irq,
+static struct irq_chip r7780rp_irq_chip __read_mostly = {
+	.name		= "r7780rp",
+	.mask		= disable_r7780rp_irq,
+	.unmask		= enable_r7780rp_irq,
+	.mask_ack	= disable_r7780rp_irq,
 };
 
-static void make_r7780rp_irq(unsigned int irq)
-{
-	disable_irq_nosync(irq);
-	irq_desc[irq].chip = &r7780rp_irq_type;
-	disable_r7780rp_irq(irq);
-}
-
 /*
  * Initialize IRQ setting
  */
@@ -92,24 +45,10 @@ void __init init_r7780rp_IRQ(void)
 {
 	int i;
 
-	/* IRL0=PCI Slot #A
-	 * IRL1=PCI Slot #B
-	 * IRL2=PCI Slot #C
-	 * IRL3=PCI Slot #D
-	 * IRL4=CF Card
-	 * IRL5=CF Card Insert
-	 * IRL6=M66596
-	 * IRL7=SD Card
-	 * IRL8=Touch Panel
-	 * IRL9=SCI
-	 * IRL10=Serial
-	 * IRL11=Extention #A
-	 * IRL11=Extention #B
-	 * IRL12=Debug LAN
-	 * IRL13=Push Switch
-	 * IRL14=ZiggBee IO
-	 */
-
-	for (i=0; i<15; i++)
-		make_r7780rp_irq(i);
+	for (i = 0; i < 15; i++) {
+		disable_irq_nosync(i);
+		set_irq_chip_and_handler(i, &r7780rp_irq_chip,
+					 handle_level_irq);
+		enable_r7780rp_irq(i);
+	}
 }
diff --git a/arch/sh/boards/snapgear/setup.c b/arch/sh/boards/snapgear/setup.c
index f5e98c56b530..540d0bf16446 100644
--- a/arch/sh/boards/snapgear/setup.c
+++ b/arch/sh/boards/snapgear/setup.c
@@ -33,7 +33,7 @@ extern void pcibios_init(void);
  * EraseConfig handling functions
  */
 
-static irqreturn_t eraseconfig_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t eraseconfig_interrupt(int irq, void *dev_id)
 {
 	volatile char dummy __attribute__((unused)) = * (volatile char *) 0xb8000000;
 
diff --git a/arch/sh/cchips/hd6446x/hd64461/setup.c b/arch/sh/cchips/hd6446x/hd64461/setup.c
index 38f1e8171a3a..4d49b5cbcc13 100644
--- a/arch/sh/cchips/hd6446x/hd64461/setup.c
+++ b/arch/sh/cchips/hd6446x/hd64461/setup.c
@@ -71,7 +71,7 @@ static struct hw_interrupt_type hd64461_irq_type = {
 	.end		= end_hd64461_irq,
 };
 
-static irqreturn_t hd64461_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t hd64461_interrupt(int irq, void *dev_id)
 {
 	printk(KERN_INFO
 	       "HD64461: spurious interrupt, nirr: 0x%x nimr: 0x%x\n",
diff --git a/arch/sh/cchips/hd6446x/hd64465/gpio.c b/arch/sh/cchips/hd6446x/hd64465/gpio.c
index 72320d02d69a..43431855ec86 100644
--- a/arch/sh/cchips/hd6446x/hd64465/gpio.c
+++ b/arch/sh/cchips/hd6446x/hd64465/gpio.c
@@ -85,7 +85,7 @@ static struct {
     void *dev;
 } handlers[GPIO_NPORTS * 8];
 
-static irqreturn_t hd64465_gpio_interrupt(int irq, void *dev, struct pt_regs *regs)
+static irqreturn_t hd64465_gpio_interrupt(int irq, void *dev)
 {
     	unsigned short port, pin, isr, mask, portpin;
 	
diff --git a/arch/sh/cchips/hd6446x/hd64465/setup.c b/arch/sh/cchips/hd6446x/hd64465/setup.c
index 30573d3e1966..d126e1f30dee 100644
--- a/arch/sh/cchips/hd6446x/hd64465/setup.c
+++ b/arch/sh/cchips/hd6446x/hd64465/setup.c
@@ -84,7 +84,7 @@ static struct hw_interrupt_type hd64465_irq_type = {
 };
 
 
-static irqreturn_t hd64465_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t hd64465_interrupt(int irq, void *dev_id)
 {
 	printk(KERN_INFO
 	       "HD64465: spurious interrupt, nirr: 0x%x nimr: 0x%x\n",
diff --git a/arch/sh/cchips/voyagergx/irq.c b/arch/sh/cchips/voyagergx/irq.c
index 392c8b12ce36..bf1b28feca06 100644
--- a/arch/sh/cchips/voyagergx/irq.c
+++ b/arch/sh/cchips/voyagergx/irq.c
@@ -88,8 +88,7 @@ static struct hw_interrupt_type voyagergx_irq_type = {
 	.end = end_voyagergx_irq,
 };
 
-static irqreturn_t voyagergx_interrupt(int irq, void *dev_id,
-				      struct pt_regs *regs)
+static irqreturn_t voyagergx_interrupt(int irq, void *dev_id)
 {
 	printk(KERN_INFO
 	       "VoyagerGX: spurious interrupt, status: 0x%x\n",
diff --git a/arch/sh/drivers/dma/dma-g2.c b/arch/sh/drivers/dma/dma-g2.c
index 9cb070924180..0caf11bb7e27 100644
--- a/arch/sh/drivers/dma/dma-g2.c
+++ b/arch/sh/drivers/dma/dma-g2.c
@@ -51,7 +51,7 @@ static volatile struct g2_dma_info *g2_dma = (volatile struct g2_dma_info *)0xa0
 	((g2_dma->channel[i].size - \
 	  g2_dma->status[i].size) & 0x0fffffff)
 
-static irqreturn_t g2_dma_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t g2_dma_interrupt(int irq, void *dev_id)
 {
 	int i;
 
diff --git a/arch/sh/drivers/dma/dma-pvr2.c b/arch/sh/drivers/dma/dma-pvr2.c
index c1b6bc23c107..838fad566eaf 100644
--- a/arch/sh/drivers/dma/dma-pvr2.c
+++ b/arch/sh/drivers/dma/dma-pvr2.c
@@ -21,7 +21,7 @@
 static unsigned int xfer_complete;
 static int count;
 
-static irqreturn_t pvr2_dma_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t pvr2_dma_interrupt(int irq, void *dev_id)
 {
 	if (get_dma_residue(PVR2_CASCADE_CHAN)) {
 		printk(KERN_WARNING "DMA: SH DMAC did not complete transfer "
diff --git a/arch/sh/drivers/dma/dma-sh.c b/arch/sh/drivers/dma/dma-sh.c
index cbbe8bce3d67..d8ece20bb2cf 100644
--- a/arch/sh/drivers/dma/dma-sh.c
+++ b/arch/sh/drivers/dma/dma-sh.c
@@ -60,9 +60,9 @@ static inline unsigned int calc_xmit_shift(struct dma_channel *chan)
  * Besides that it needs to waken any waiting process, which should handle
  * setting up the next transfer.
  */
-static irqreturn_t dma_tei(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t dma_tei(int irq, void *dev_id)
 {
-	struct dma_channel *chan = (struct dma_channel *)dev_id;
+	struct dma_channel *chan = dev_id;
 	u32 chcr;
 
 	chcr = ctrl_inl(CHCR[chan->chan]);
@@ -228,7 +228,7 @@ static inline int dmaor_reset(void)
 }
 
 #if defined(CONFIG_CPU_SH4)
-static irqreturn_t dma_err(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t dma_err(int irq, void *dummy)
 {
 	dmaor_reset();
 	disable_irq(irq);
diff --git a/arch/sh/drivers/pci/pci-sh7751.c b/arch/sh/drivers/pci/pci-sh7751.c
index dbe837884983..85e1ee2e2e7b 100644
--- a/arch/sh/drivers/pci/pci-sh7751.c
+++ b/arch/sh/drivers/pci/pci-sh7751.c
@@ -155,7 +155,7 @@ int __init sh7751_pcic_init(struct sh4_pci_address_map *map)
 	 */
 	pr_debug("PCI: Mapping IO address 0x%x - 0x%x to base 0x%x\n",
 		 PCIBIOS_MIN_IO, (64 << 10),
-		 SH4_PCI_IO_BASE + PCIBIOS_MIN_IO);
+		 SH7751_PCI_IO_BASE + PCIBIOS_MIN_IO);
 
 	/*
 	 * XXX: For now, leave this board-specific. In the event we have other
@@ -163,7 +163,7 @@ int __init sh7751_pcic_init(struct sh4_pci_address_map *map)
 	 */
 #ifdef CONFIG_SH_BIGSUR
 	bigsur_port_map(PCIBIOS_MIN_IO, (64 << 10),
-			SH4_PCI_IO_BASE + PCIBIOS_MIN_IO, 0);
+			SH7751_PCI_IO_BASE + PCIBIOS_MIN_IO, 0);
 #endif
 
 	/* Make sure the MSB's of IO window are set to access PCI space
diff --git a/arch/sh/drivers/pci/pci-st40.c b/arch/sh/drivers/pci/pci-st40.c
index 4ab5ea6b35fb..efecb3d5995c 100644
--- a/arch/sh/drivers/pci/pci-st40.c
+++ b/arch/sh/drivers/pci/pci-st40.c
@@ -161,7 +161,7 @@ static char * pci_commands[16]={
 	"Memory Write-and-Invalidate"
 };
 
-static irqreturn_t st40_pci_irq(int irq, void *dev_instance, struct pt_regs *regs)
+static irqreturn_t st40_pci_irq(int irq, void *dev_instance)
 {
 	unsigned pci_int, pci_air, pci_cir, pci_aint;
 	static int count=0;
diff --git a/arch/sh/kernel/cpu/irq/intc2.c b/arch/sh/kernel/cpu/irq/intc2.c
index e30e4b7aa70e..d4b2bb7e08c7 100644
--- a/arch/sh/kernel/cpu/irq/intc2.c
+++ b/arch/sh/kernel/cpu/irq/intc2.c
@@ -10,93 +10,32 @@
  * These are the "new Hitachi style" interrupts, as present on the
  * Hitachi 7751, the STM ST40 STB1, SH7760, and SH7780.
  */
-
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/irq.h>
 #include <asm/system.h>
 #include <asm/io.h>
-#include <asm/machvec.h>
-
-struct intc2_data {
-	unsigned char msk_offset;
-	unsigned char msk_shift;
-
-	int (*clear_irq) (int);
-};
-
-static struct intc2_data intc2_data[NR_INTC2_IRQS];
-
-static void enable_intc2_irq(unsigned int irq);
-static void disable_intc2_irq(unsigned int irq);
-
-/* shutdown is same as "disable" */
-#define shutdown_intc2_irq disable_intc2_irq
-
-static void mask_and_ack_intc2(unsigned int);
-static void end_intc2_irq(unsigned int irq);
-
-static unsigned int startup_intc2_irq(unsigned int irq)
-{
-	enable_intc2_irq(irq);
-	return 0; /* never anything pending */
-}
-
-static struct hw_interrupt_type intc2_irq_type = {
-	.typename	= "INTC2-IRQ",
-	.startup	= startup_intc2_irq,
-	.shutdown	= shutdown_intc2_irq,
-	.enable		= enable_intc2_irq,
-	.disable	= disable_intc2_irq,
-	.ack		= mask_and_ack_intc2,
-	.end		= end_intc2_irq
-};
 
 static void disable_intc2_irq(unsigned int irq)
 {
-	int irq_offset = irq - INTC2_FIRST_IRQ;
-	int msk_shift, msk_offset;
-
-	/* Sanity check */
-	if (unlikely(irq_offset < 0 || irq_offset >= NR_INTC2_IRQS))
-		return;
-
-	msk_shift = intc2_data[irq_offset].msk_shift;
-	msk_offset = intc2_data[irq_offset].msk_offset;
-
-	ctrl_outl(1 << msk_shift,
-		  INTC2_BASE + INTC2_INTMSK_OFFSET + msk_offset);
+	struct intc2_data *p = get_irq_chip_data(irq);
+	ctrl_outl(1 << p->msk_shift,
+		  INTC2_BASE + INTC2_INTMSK_OFFSET + p->msk_offset);
 }
 
 static void enable_intc2_irq(unsigned int irq)
 {
-	int irq_offset = irq - INTC2_FIRST_IRQ;
-	int msk_shift, msk_offset;
-
-	/* Sanity check */
-	if (unlikely(irq_offset < 0 || irq_offset >= NR_INTC2_IRQS))
-		return;
-
-	msk_shift = intc2_data[irq_offset].msk_shift;
-	msk_offset = intc2_data[irq_offset].msk_offset;
-
-	ctrl_outl(1 << msk_shift,
-		  INTC2_BASE + INTC2_INTMSKCLR_OFFSET + msk_offset);
-}
-
-static void mask_and_ack_intc2(unsigned int irq)
-{
-	disable_intc2_irq(irq);
+	struct intc2_data *p = get_irq_chip_data(irq);
+	ctrl_outl(1 << p->msk_shift,
+		  INTC2_BASE + INTC2_INTMSKCLR_OFFSET + p->msk_offset);
 }
 
-static void end_intc2_irq(unsigned int irq)
-{
-	if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
-		enable_intc2_irq(irq);
-
-	if (unlikely(intc2_data[irq - INTC2_FIRST_IRQ].clear_irq))
-		intc2_data[irq - INTC2_FIRST_IRQ].clear_irq(irq);
-}
+static struct irq_chip intc2_irq_chip = {
+	.typename	= "intc2",
+	.mask		= disable_intc2_irq,
+	.unmask		= enable_intc2_irq,
+	.mask_ack	= disable_intc2_irq,
+};
 
 /*
  * Setup an INTC2 style interrupt.
@@ -108,46 +47,30 @@ static void end_intc2_irq(unsigned int irq)
  *                         |     |             |  |
  *    make_intc2_irq(84,   0,   16,            0, 13);
  */
-void make_intc2_irq(unsigned int irq,
-		    unsigned int ipr_offset, unsigned int ipr_shift,
-		    unsigned int msk_offset, unsigned int msk_shift,
-		    unsigned int priority)
+void make_intc2_irq(struct intc2_data *p)
 {
-	int irq_offset = irq - INTC2_FIRST_IRQ;
 	unsigned int flags;
 	unsigned long ipr;
 
-	if (unlikely(irq_offset < 0 || irq_offset >= NR_INTC2_IRQS))
-		return;
-
-	disable_irq_nosync(irq);
-
-	/* Fill the data we need */
-	intc2_data[irq_offset].msk_offset = msk_offset;
-	intc2_data[irq_offset].msk_shift  = msk_shift;
-	intc2_data[irq_offset].clear_irq = NULL;
+	disable_irq_nosync(p->irq);
 
 	/* Set the priority level */
 	local_irq_save(flags);
 
-	ipr = ctrl_inl(INTC2_BASE + INTC2_INTPRI_OFFSET + ipr_offset);
-	ipr &= ~(0xf << ipr_shift);
-	ipr |= priority << ipr_shift;
-	ctrl_outl(ipr, INTC2_BASE + INTC2_INTPRI_OFFSET + ipr_offset);
+	ipr = ctrl_inl(INTC2_BASE + INTC2_INTPRI_OFFSET + p->ipr_offset);
+	ipr &= ~(0xf << p->ipr_shift);
+	ipr |= p->priority << p->ipr_shift;
+	ctrl_outl(ipr, INTC2_BASE + INTC2_INTPRI_OFFSET + p->ipr_offset);
 
 	local_irq_restore(flags);
 
-	irq_desc[irq].chip = &intc2_irq_type;
+	set_irq_chip_and_handler(p->irq, &intc2_irq_chip, handle_level_irq);
+	set_irq_chip_data(p->irq, p);
 
-	disable_intc2_irq(irq);
+	enable_intc2_irq(p->irq);
 }
 
-static struct intc2_init {
-	unsigned short irq;
-	unsigned char ipr_offset, ipr_shift;
-	unsigned char msk_offset, msk_shift;
-	unsigned char priority;
-} intc2_init_data[]  __initdata = {
+static struct intc2_data intc2_irq_table[] = {
 #if defined(CONFIG_CPU_SUBTYPE_ST40)
 	{64,  0,  0, 0,  0, 13},	/* PCI serr */
 	{65,  0,  4, 0,  1, 13},	/* PCI err */
@@ -266,19 +189,6 @@ void __init init_IRQ_intc2(void)
 {
 	int i;
 
-	for (i = 0; i < ARRAY_SIZE(intc2_init_data); i++) {
-		struct intc2_init *p = intc2_init_data + i;
-		make_intc2_irq(p->irq, p->ipr_offset, p->ipr_shift,
-			       p-> msk_offset, p->msk_shift, p->priority);
-	}
-}
-
-/* Adds a termination callback to the interrupt */
-void intc2_add_clear_irq(int irq, int (*fn)(int))
-{
-	if (unlikely(irq < INTC2_FIRST_IRQ))
-		return;
-
-	intc2_data[irq - INTC2_FIRST_IRQ].clear_irq = fn;
+	for (i = 0; i < ARRAY_SIZE(intc2_irq_table); i++)
+		make_intc2_irq(intc2_irq_table + i);
 }
-
diff --git a/arch/sh/kernel/cpu/irq/ipr.c b/arch/sh/kernel/cpu/irq/ipr.c
index f785822cd5de..8944abdf6e1c 100644
--- a/arch/sh/kernel/cpu/irq/ipr.c
+++ b/arch/sh/kernel/cpu/irq/ipr.c
@@ -1,11 +1,10 @@
 /*
- * arch/sh/kernel/cpu/irq/ipr.c
+ * Interrupt handling for IPR-based IRQ.
  *
  * Copyright (C) 1999  Niibe Yutaka & Takeshi Yaegashi
  * Copyright (C) 2000  Kazumoto Kojima
- * Copyright (C) 2003 Takashi Kusuda <kusuda-takashi@hitachi-ul.co.jp>
- *
- * Interrupt handling for IPR-based IRQ.
+ * Copyright (C) 2003  Takashi Kusuda <kusuda-takashi@hitachi-ul.co.jp>
+ * Copyright (C) 2006  Paul Mundt
  *
  * Supported system:
  *	On-chip supporting modules (TMU, RTC, etc.).
@@ -13,12 +12,13 @@
  *	Hitachi SolutionEngine external I/O:
  *		MS7709SE01, MS7709ASE01, and MS7750SE01
  *
+ * 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.
  */
-
 #include <linux/init.h>
 #include <linux/irq.h>
 #include <linux/module.h>
-
 #include <asm/system.h>
 #include <asm/io.h>
 #include <asm/machvec.h>
@@ -28,93 +28,45 @@ struct ipr_data {
 	int shift;		/* Shifts of the 16-bit data */
 	int priority;		/* The priority */
 };
-static struct ipr_data ipr_data[NR_IRQS];
-
-static void enable_ipr_irq(unsigned int irq);
-static void disable_ipr_irq(unsigned int irq);
-
-/* shutdown is same as "disable" */
-#define shutdown_ipr_irq disable_ipr_irq
-
-static void mask_and_ack_ipr(unsigned int);
-static void end_ipr_irq(unsigned int irq);
-
-static unsigned int startup_ipr_irq(unsigned int irq)
-{
-	enable_ipr_irq(irq);
-	return 0; /* never anything pending */
-}
-
-static struct hw_interrupt_type ipr_irq_type = {
-	.typename = "IPR-IRQ",
-	.startup = startup_ipr_irq,
-	.shutdown = shutdown_ipr_irq,
-	.enable = enable_ipr_irq,
-	.disable = disable_ipr_irq,
-	.ack = mask_and_ack_ipr,
-	.end = end_ipr_irq
-};
 
 static void disable_ipr_irq(unsigned int irq)
 {
-	unsigned long val;
-	unsigned int addr = ipr_data[irq].addr;
-	unsigned short mask = 0xffff ^ (0x0f << ipr_data[irq].shift);
-
+	struct ipr_data *p = get_irq_chip_data(irq);
 	/* Set the priority in IPR to 0 */
-	val = ctrl_inw(addr);
-	val &= mask;
-	ctrl_outw(val, addr);
+	ctrl_outw(ctrl_inw(p->addr) & (0xffff ^ (0xf << p->shift)), p->addr);
 }
 
 static void enable_ipr_irq(unsigned int irq)
 {
-	unsigned long val;
-	unsigned int addr = ipr_data[irq].addr;
-	int priority = ipr_data[irq].priority;
-	unsigned short value = (priority << ipr_data[irq].shift);
-
+	struct ipr_data *p = get_irq_chip_data(irq);
 	/* Set priority in IPR back to original value */
-	val = ctrl_inw(addr);
-	val |= value;
-	ctrl_outw(val, addr);
+	ctrl_outw(ctrl_inw(p->addr) | (p->priority << p->shift), p->addr);
 }
 
-static void mask_and_ack_ipr(unsigned int irq)
-{
-	disable_ipr_irq(irq);
-
-#if defined(CONFIG_CPU_SUBTYPE_SH7707) || defined(CONFIG_CPU_SUBTYPE_SH7709) || \
-    defined(CONFIG_CPU_SUBTYPE_SH7706) || \
-    defined(CONFIG_CPU_SUBTYPE_SH7300) || defined(CONFIG_CPU_SUBTYPE_SH7705)
-	/* This is needed when we use edge triggered setting */
-	/* XXX: Is it really needed? */
-	if (IRQ0_IRQ <= irq && irq <= IRQ5_IRQ) {
-		/* Clear external interrupt request */
-		int a = ctrl_inb(INTC_IRR0);
-		a &= ~(1 << (irq - IRQ0_IRQ));
-		ctrl_outb(a, INTC_IRR0);
-	}
-#endif
-}
-
-static void end_ipr_irq(unsigned int irq)
-{
-	if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
-		enable_ipr_irq(irq);
-}
+static struct irq_chip ipr_irq_chip = {
+	.name		= "ipr",
+	.mask		= disable_ipr_irq,
+	.unmask		= enable_ipr_irq,
+	.mask_ack	= disable_ipr_irq,
+};
 
 void make_ipr_irq(unsigned int irq, unsigned int addr, int pos, int priority)
 {
+	struct ipr_data ipr_data;
+
 	disable_irq_nosync(irq);
-	ipr_data[irq].addr = addr;
-	ipr_data[irq].shift = pos*4; /* POSition (0-3) x 4 means shift */
-	ipr_data[irq].priority = priority;
 
-	irq_desc[irq].chip = &ipr_irq_type;
-	disable_ipr_irq(irq);
+	ipr_data.addr = addr;
+	ipr_data.shift = pos*4; /* POSition (0-3) x 4 means shift */
+	ipr_data.priority = priority;
+
+	set_irq_chip_and_handler(irq, &ipr_irq_chip, handle_level_irq);
+	set_irq_chip_data(irq, &ipr_data);
+
+	enable_ipr_irq(irq);
 }
 
+/* XXX: This needs to die a horrible death.. */
 void __init init_IRQ(void)
 {
 #ifndef CONFIG_CPU_SUBTYPE_SH7780
diff --git a/arch/sh/kernel/cpu/sh3/ex.S b/arch/sh/kernel/cpu/sh3/ex.S
index 44daf44833f9..6be46f0686b7 100644
--- a/arch/sh/kernel/cpu/sh3/ex.S
+++ b/arch/sh/kernel/cpu/sh3/ex.S
@@ -49,198 +49,3 @@ ENTRY(nmi_slot)
 #endif
 ENTRY(user_break_point_trap)
 	.long	break_point_trap	/* 1E0 */
-ENTRY(interrupt_table)
-	! external hardware
-	.long	do_IRQ	! 0000		/* 200 */
-	.long	do_IRQ	! 0001
-	.long	do_IRQ	! 0010
-	.long	do_IRQ	! 0011
-	.long	do_IRQ	! 0100
-	.long	do_IRQ	! 0101
-	.long	do_IRQ	! 0110
-	.long	do_IRQ	! 0111
-	.long	do_IRQ	! 1000		/* 300 */
-	.long	do_IRQ	! 1001
-	.long	do_IRQ	! 1010
-	.long	do_IRQ	! 1011
-	.long	do_IRQ	! 1100
-	.long	do_IRQ	! 1101
-	.long	do_IRQ	! 1110
-	.long	exception_error		
-	! Internal hardware
-	.long	do_IRQ	! TMU0 tuni0	/* 400 */
-	.long	do_IRQ	! TMU1 tuni1
-	.long	do_IRQ	! TMU2 tuni2
-	.long	do_IRQ	!      ticpi2
-	.long	do_IRQ	! RTC  ati
-	.long	do_IRQ	!      pri
-	.long	do_IRQ	!      cui
-	.long	do_IRQ	! SCI  eri
-	.long	do_IRQ	!      rxi	/* 500 */
-	.long	do_IRQ	!      txi
-	.long	do_IRQ	!      tei
-	.long	do_IRQ	! WDT  iti	/* 560 */
-	.long	do_IRQ	! REF  rcmi
-	.long	do_IRQ	!      rovi
-	.long	do_IRQ			
-	.long	do_IRQ			/* 5E0 */
-#if  defined(CONFIG_CPU_SUBTYPE_SH7707) || \
-     defined(CONFIG_CPU_SUBTYPE_SH7709) || \
-     defined(CONFIG_CPU_SUBTYPE_SH7706) || \
-     defined(CONFIG_CPU_SUBTYPE_SH7300) || \
-     defined(CONFIG_CPU_SUBTYPE_SH7705) || \
-     defined(CONFIG_CPU_SUBTYPE_SH7710)
-	.long	do_IRQ	! 32 IRQ  irq0	/* 600 */
-	.long	do_IRQ	! 33      irq1
-	.long	do_IRQ	! 34      irq2
-	.long	do_IRQ	! 35      irq3
-	.long	do_IRQ	! 36      irq4
-	.long	do_IRQ	! 37      irq5
-	.long	do_IRQ	! 38
-	.long	do_IRQ	! 39
-	.long	do_IRQ	! 40 PINT pint0-7	/* 700 */
-	.long	do_IRQ	! 41      pint8-15
-	.long	do_IRQ	! 42
-	.long	do_IRQ	! 43
-	.long	do_IRQ	! 44
-	.long	do_IRQ	! 45	
-	.long	do_IRQ	! 46
-	.long	do_IRQ	! 47
-	.long	do_IRQ	! 48 DMAC dei0	/* 800 */
-	.long	do_IRQ	! 49      dei1
-	.long	do_IRQ	! 50      dei2
-	.long	do_IRQ	! 51      dei3
-	.long	do_IRQ	! 52 IrDA eri1
-	.long	do_IRQ	! 53      rxi1
-	.long	do_IRQ	! 54      bri1
-	.long	do_IRQ	! 55      txi1
-	.long	do_IRQ	! 56 SCIF eri2
-	.long	do_IRQ	! 57      rxi2
-	.long	do_IRQ	! 58      bri2
-	.long	do_IRQ	! 59      txi2
-	.long	do_IRQ	! 60 ADC  adi	/* 980 */
-#if defined(CONFIG_CPU_SUBTYPE_SH7705)
-	.long	exception_none	! 61	/* 9A0 */
-	.long	exception_none	! 62
-	.long	exception_none	! 63
-	.long	exception_none	! 64	/* A00 */
-	.long	do_IRQ	! 65 USB  usi0
-	.long	do_IRQ	! 66      usi1
-	.long	exception_none	! 67
-	.long	exception_none	! 68
-	.long	exception_none	! 69
-	.long	exception_none	! 70
-	.long	exception_none	! 71
-	.long	exception_none	! 72	/* B00 */
-	.long	exception_none	! 73
-	.long	exception_none	! 74
-	.long	exception_none	! 75
-	.long	exception_none	! 76
-	.long	exception_none	! 77
-	.long	exception_none	! 78
-	.long	exception_none	! 79
-	.long	do_IRQ	! 80 TPU0 tpi0	/* C00 */
-	.long	do_IRQ	! 81 TPU1 tpi1
-	.long	exception_none	! 82
-	.long	exception_none	! 83
-	.long	do_IRQ	! 84 TPU2 tpi2
-	.long	do_IRQ	! 85 TPU3 tpi3	/* CA0 */
-#endif
-#if defined(CONFIG_CPU_SUBTYPE_SH7707) || defined(CONFIG_CPU_SUBTYPE_SH7300)
-	.long   do_IRQ	! 61 LCDC lcdi	/* 9A0 */
-	.long   do_IRQ	! 62 PCC  pcc0i
-	.long   do_IRQ	! 63      pcc1i	/* 9E0 */
-#endif
-#if defined(CONFIG_CPU_SUBTYPE_SH7710)
-	.long   exception_none	! 61 	/* 9A0 */
-	.long   exception_none	! 62
-	.long   exception_none	! 63
-	.long   exception_none	! 64	/* A00 */
-	.long   exception_none	! 65
-	.long   exception_none	! 66
-	.long   exception_none	! 67
-	.long   exception_none	! 68
-	.long   exception_none	! 69
-	.long   exception_none	! 70
-	.long   exception_none	! 71
-	.long   exception_none	! 72	/* B00 */
-	.long   exception_none	! 73
-	.long   exception_none	! 74
-	.long   exception_none	! 75
-	.long   do_IRQ	! 76 DMAC2 dei4	/* B80 */
-	.long   do_IRQ	! 77 DMAC2 dei5
-	.long   exception_none	! 78
-	.long   do_IRQ	! 79 IPSEC ipseci /* BE0 */
-	.long   do_IRQ	! 80 EDMAC eint0 /* C00 */
-	.long   do_IRQ	! 81 EDMAC eint1
-	.long   do_IRQ	! 82 EDMAC eint2
-	.long   exception_none	! 83	/* C60 */
-	.long   exception_none	! 84
-	.long   exception_none	! 85
-	.long   exception_none	! 86
-	.long   exception_none	! 87
-	.long   exception_none	! 88	/* D00 */
-	.long   exception_none	! 89
-	.long   exception_none	! 90
-	.long   exception_none	! 91
-	.long   exception_none	! 92
-	.long   exception_none	! 93
-	.long   exception_none	! 94
-	.long   exception_none	! 95
-	.long   do_IRQ	! 96 SIOF eri0	/* E00 */
-	.long   do_IRQ	! 97      txi0
-	.long   do_IRQ	! 98      rxi0
-	.long   do_IRQ	! 99      cci0
-	.long   do_IRQ	! 100     eri1	/* E80 */
-	.long   do_IRQ	! 101     txi1
-	.long   do_IRQ	! 102     rxi2
-	.long   do_IRQ	! 103     cci3
-#endif
-#if defined(CONFIG_CPU_SUBTYPE_SH7300)
-	.long   do_IRQ	! 64
-	.long   do_IRQ	! 65
-	.long   do_IRQ	! 66
-	.long   do_IRQ	! 67
-	.long   do_IRQ	! 68
-	.long   do_IRQ	! 69
-	.long   do_IRQ	! 70
-	.long   do_IRQ	! 71
-	.long   do_IRQ	! 72
-	.long   do_IRQ	! 73
-	.long   do_IRQ	! 74
-	.long   do_IRQ	! 75
-	.long   do_IRQ	! 76
-	.long   do_IRQ	! 77
-	.long   do_IRQ	! 78
-	.long   do_IRQ	! 79
-	.long   do_IRQ	! 80 SCIF0(SH7300)
-	.long   do_IRQ	! 81
-	.long   do_IRQ	! 82
-	.long   do_IRQ	! 83
-	.long   do_IRQ	! 84
-	.long   do_IRQ	! 85
-	.long   do_IRQ	! 86
-	.long   do_IRQ	! 87
-	.long   do_IRQ	! 88
-	.long   do_IRQ	! 89
-	.long   do_IRQ	! 90
-	.long   do_IRQ	! 91
-	.long   do_IRQ	! 92
-	.long   do_IRQ	! 93
-	.long   do_IRQ	! 94
-	.long   do_IRQ	! 95
-	.long   do_IRQ	! 96
-	.long   do_IRQ	! 97
-	.long   do_IRQ	! 98
-	.long   do_IRQ	! 99
-	.long   do_IRQ	! 100
-	.long   do_IRQ	! 101
-	.long   do_IRQ	! 102
-	.long   do_IRQ	! 103
-	.long   do_IRQ	! 104
-	.long   do_IRQ	! 105
-	.long   do_IRQ	! 106
-	.long   do_IRQ	! 107
-	.long   do_IRQ	! 108
-#endif
-#endif
diff --git a/arch/sh/kernel/cpu/sh4/ex.S b/arch/sh/kernel/cpu/sh4/ex.S
index 7146893a6cca..3f4cd043e900 100644
--- a/arch/sh/kernel/cpu/sh4/ex.S
+++ b/arch/sh/kernel/cpu/sh4/ex.S
@@ -53,503 +53,3 @@ ENTRY(nmi_slot)
 #endif
 ENTRY(user_break_point_trap)
 	.long	break_point_trap	/* 1E0 */
-ENTRY(interrupt_table)
-	! external hardware
-	.long	do_IRQ	! 0000		/* 200 */
-	.long	do_IRQ	! 0001
-	.long	do_IRQ	! 0010
-	.long	do_IRQ	! 0011
-	.long	do_IRQ	! 0100
-	.long	do_IRQ	! 0101
-	.long	do_IRQ	! 0110
-	.long	do_IRQ	! 0111
-	.long	do_IRQ	! 1000		/* 300 */
-	.long	do_IRQ	! 1001
-	.long	do_IRQ	! 1010
-	.long	do_IRQ	! 1011
-	.long	do_IRQ	! 1100
-	.long	do_IRQ	! 1101
-	.long	do_IRQ	! 1110
-	.long	exception_error		
-	! Internal hardware
-#ifndef CONFIG_CPU_SUBTYPE_SH7780
-	.long	do_IRQ	! TMU0 tuni0	/* 400 */
-	.long	do_IRQ	! TMU1 tuni1
-	.long	do_IRQ	! TMU2 tuni2
-	.long	do_IRQ	!      ticpi2
-#if  defined(CONFIG_CPU_SUBTYPE_SH7760)
-	.long	exception_error
-	.long	exception_error
-	.long	exception_error
-	.long	exception_error
-	.long	exception_error			/* 500 */
-	.long	exception_error
-	.long	exception_error
-#else
-	.long	do_IRQ	! RTC  ati
-	.long	do_IRQ	!      pri
-	.long	do_IRQ	!      cui
-	.long	do_IRQ	! SCI  eri
-	.long	do_IRQ	!      rxi	/* 500 */
-	.long	do_IRQ	!      txi
-	.long	do_IRQ	!      tei
-#endif
-	.long	do_IRQ	! WDT  iti	/* 560 */
-	.long	do_IRQ	! REF  rcmi
-	.long	do_IRQ	!      rovi
-	.long	do_IRQ			
-	.long	do_IRQ			/* 5E0 */
-	.long	do_IRQ	! 32 Hitachi UDI	/* 600 */
-	.long	do_IRQ	! 33 GPIO
-	.long	do_IRQ	! 34 DMAC dmte0
-	.long	do_IRQ	! 35      dmte1
-	.long	do_IRQ	! 36      dmte2
-	.long	do_IRQ	! 37      dmte3
-	.long	do_IRQ	! 38      dmae
-	.long	exception_error			! 39	/* 6E0 */
-#if defined(CONFIG_CPU_SUBTYPE_SH7760)
-	.long	exception_error				/* 700 */
-	.long	exception_error
-	.long	exception_error
-	.long	exception_error				/* 760 */
-#else
-	.long	do_IRQ	! 40 SCIF eri		/* 700 */
-	.long	do_IRQ	! 41      rxi
-	.long	do_IRQ	! 42      bri
-	.long	do_IRQ	! 43      txi
-#endif
-#if CONFIG_NR_ONCHIP_DMA_CHANNELS == 8
-	.long	do_IRQ	! 44 DMAC dmte4		/* 780 */
-	.long	do_IRQ	! 45      dmte5
-	.long	do_IRQ	! 46      dmte6
-	.long	do_IRQ	! 47      dmte7		/* 7E0 */
-#elif defined(CONFIG_CPU_SUBTYPE_SH7343)
-	.long	do_IRQ	! 44 IIC1 ali		/* 780 */
-	.long	do_IRQ	! 45      tacki
-	.long	do_IRQ	! 46      waiti
-	.long	do_IRQ	! 47      dtei		/* 7E0 */
-	.long	do_IRQ	! 48 DMAC dei0		/* 800 */
-	.long	do_IRQ	! 49      dei1		/* 820 */
-#else
-	.long	exception_error			! 44	/* 780 */
-	.long	exception_error			! 45
-	.long	exception_error			! 46
-	.long	exception_error			! 47
-#endif
-#if defined(CONFIG_SH_FPU)
-	.long	do_fpu_state_restore	! 48	/* 800 */
-	.long	do_fpu_state_restore	! 49	/* 820 */
-#elif !defined(CONFIG_CPU_SUBTYPE_SH7343) && \
-      !defined(CONFIG_CPU_SUBTYPE_SH73180)
-	.long	exception_error
-	.long	exception_error
-#endif
-#if defined(CONFIG_CPU_SUBTYPE_SH7751)
-	.long	exception_error			/* 840 */
-	.long	exception_error
-	.long	exception_error
-	.long	exception_error
-	.long	exception_error
-	.long	exception_error
-	.long	exception_error			/* 900 */
-	.long	exception_error
-	.long	exception_error
-	.long	exception_error
-	.long	exception_error
-	.long	exception_error
-	.long	exception_error
-	.long	exception_error
-	.long	do_IRQ	! PCI serr	/* A00 */
-	.long	do_IRQ	!     dma3
-	.long	do_IRQ	!     dma2
-	.long	do_IRQ	!     dma1
-	.long	do_IRQ	!     dma0
-	.long	do_IRQ	!     pwon
-	.long	do_IRQ	!     pwdwn
-	.long	do_IRQ	!     err
-	.long	do_IRQ	! TMU3 tuni3	/* B00 */
-	.long	exception_error
-	.long	exception_error
-	.long	exception_error
-	.long	do_IRQ	! TMU4 tuni4	/* B80 */
-#elif defined(CONFIG_CPU_SUBTYPE_SH7760)
-	.long	do_IRQ	! IRQ	irq6	/* 840 */
-	.long	do_IRQ	!	irq7
-	.long	do_IRQ	! SCIF	eri0
-	.long	do_IRQ	!	rxi0
-	.long	do_IRQ	!	bri0
-	.long	do_IRQ	!	txi0
-	.long	do_IRQ	! HCAN2	cani0	/* 900 */
-	.long	do_IRQ	!	cani1
-	.long	do_IRQ	! SSI	ssii0
-	.long	do_IRQ	!	ssii1
-	.long	do_IRQ	! HAC	haci0
-	.long	do_IRQ	!	haci1
-	.long	do_IRQ	! IIC	iici0
-	.long	do_IRQ	!	iici1
-	.long	do_IRQ	! USB	usbi	/* A00 */
-	.long	do_IRQ	! LCDC	vint
-	.long	exception_error
-	.long	exception_error
-	.long	do_IRQ	! DMABRG dmabrgi0
-	.long	do_IRQ	!        dmabrgi1
-	.long	do_IRQ	!        dmabrgi2
-	.long	exception_error
-	.long	do_IRQ	! SCIF	eri1	/* B00 */
-	.long	do_IRQ	!	rxi1
-	.long	do_IRQ	!	bri1
-	.long	do_IRQ	!	txi1
-	.long	do_IRQ	!	eri2
-	.long	do_IRQ	!	rxi2
-	.long	do_IRQ	!	bri2
-	.long	do_IRQ  !	txi2
-	.long	do_IRQ	! SIM	simeri	/* C00 */
-	.long	do_IRQ	!	simrxi
-	.long	do_IRQ	!	simtxi
-	.long	do_IRQ	!	simtei
-	.long	do_IRQ	! HSPI	spii
-	.long	exception_error
-	.long	exception_error
-	.long	exception_error
-	.long	do_IRQ	! MMCIF	mmci0	/* D00 */
-	.long	do_IRQ	!	mmci1
-	.long	do_IRQ	!	mmci2
-	.long	do_IRQ	!	mmci3
-	.long	exception_error
-	.long	exception_error
-	.long	exception_error
-	.long	exception_error
-	.long	exception_error			/* E00 */
-	.long	exception_error
-	.long	exception_error
-	.long	exception_error
-	.long	do_IRQ	! MFI	mfii
-	.long	exception_error
-	.long	exception_error
-	.long	exception_error
-	.long	exception_error			/* F00 */
-	.long	exception_error
-	.long	exception_error
-	.long	exception_error
-	.long	do_IRQ	! ADC	adi
-	.long	do_IRQ	! CMT	cmti	/* FA0 */
-#elif defined(CONFIG_CPU_SUBTYPE_SH73180) || defined(CONFIG_CPU_SUBTYPE_SH7343)
-	.long	do_IRQ	!  50 0x840
-	.long	do_IRQ	!  51 0x860
-	.long	do_IRQ	!  52 0x880
-	.long	do_IRQ	!  53 0x8a0
-	.long	do_IRQ	!  54 0x8c0
-	.long	do_IRQ	!  55 0x8e0
-	.long	do_IRQ	!  56 0x900
-	.long	do_IRQ	!  57 0x920
-	.long	do_IRQ	!  58 0x940
-	.long	do_IRQ	!  59 0x960
-	.long	do_IRQ	!  60 0x980
-	.long	do_IRQ	!  61 0x9a0
-	.long	do_IRQ	!  62 0x9c0
-	.long	do_IRQ	!  63 0x9e0
-	.long	do_IRQ	!  64 0xa00
-	.long	do_IRQ	!  65 0xa20
-	.long	do_IRQ	!  66 0xa40
-	.long	do_IRQ	!  67 0xa60
-	.long	do_IRQ	!  68 0xa80
-	.long	do_IRQ	!  69 0xaa0
-	.long	do_IRQ	!  70 0xac0
-	.long	do_IRQ	!  71 0xae0
-	.long	do_IRQ	!  72 0xb00
-	.long	do_IRQ	!  73 0xb20
-	.long	do_IRQ	!  74 0xb40
-	.long	do_IRQ	!  75 0xb60
-	.long	do_IRQ	!  76 0xb80
-	.long	do_IRQ	!  77 0xba0
-	.long	do_IRQ	!  78 0xbc0
-	.long	do_IRQ	!  79 0xbe0
-	.long	do_IRQ	!  80 0xc00
-	.long	do_IRQ	!  81 0xc20
-	.long	do_IRQ	!  82 0xc40
-	.long	do_IRQ	!  83 0xc60
-	.long	do_IRQ	!  84 0xc80
-	.long	do_IRQ	!  85 0xca0
-	.long	do_IRQ	!  86 0xcc0
-	.long	do_IRQ	!  87 0xce0
-	.long	do_IRQ	!  88 0xd00
-	.long	do_IRQ	!  89 0xd20
-	.long	do_IRQ	!  90 0xd40
-	.long	do_IRQ	!  91 0xd60
-	.long	do_IRQ	!  92 0xd80
-	.long	do_IRQ	!  93 0xda0
-	.long	do_IRQ	!  94 0xdc0
-	.long	do_IRQ	!  95 0xde0
-	.long	do_IRQ	!  96 0xe00
-	.long	do_IRQ	!  97 0xe20
-	.long	do_IRQ	!  98 0xe40
-	.long	do_IRQ	!  99 0xe60
-	.long	do_IRQ	! 100 0xe80
-	.long	do_IRQ	! 101 0xea0
-	.long	do_IRQ	! 102 0xec0
-	.long	do_IRQ	! 103 0xee0
-	.long	do_IRQ	! 104 0xf00
-	.long	do_IRQ	! 105 0xf20
-	.long	do_IRQ	! 106 0xf40
-	.long	do_IRQ	! 107 0xf60
-	.long	do_IRQ	! 108 0xf80
-#elif defined(CONFIG_CPU_SUBTYPE_ST40STB1)
-	.long	exception_error			!  50 0x840
-	.long	exception_error			!  51 0x860
-	.long	exception_error			!  52 0x880
-	.long	exception_error			!  53 0x8a0
-	.long	exception_error			!  54 0x8c0
-	.long	exception_error			!  55 0x8e0
-	.long	exception_error			!  56 0x900
-	.long	exception_error			!  57 0x920
-	.long	exception_error			!  58 0x940
-	.long	exception_error			!  59 0x960
-	.long	exception_error			!  60 0x980
-	.long	exception_error			!  61 0x9a0
-	.long	exception_error			!  62 0x9c0
-	.long	exception_error			!  63 0x9e0
-	.long	do_IRQ	!  64 0xa00 PCI serr
-	.long	do_IRQ	!  65 0xa20     err
-	.long	do_IRQ	!  66 0xa40     ad
-	.long	do_IRQ	!  67 0xa60     pwr_dwn
-	.long	exception_error			!  68 0xa80
-	.long	exception_error			!  69 0xaa0
-	.long	exception_error			!  70 0xac0
-	.long	exception_error			!  71 0xae0
-	.long	do_IRQ	!  72 0xb00 DMA INT0
-	.long	do_IRQ	!  73 0xb20     INT1
-	.long	do_IRQ	!  74 0xb40     INT2
-	.long	do_IRQ	!  75 0xb60     INT3
-	.long	do_IRQ	!  76 0xb80     INT4
-	.long	exception_error			!  77 0xba0
-	.long	do_IRQ	!  78 0xbc0 DMA ERR
-	.long	exception_error			!  79 0xbe0
-	.long	do_IRQ	!  80 0xc00 PIO0
-	.long	do_IRQ	!  81 0xc20 PIO1
-	.long	do_IRQ	!  82 0xc40 PIO2
-	.long	exception_error			!  83 0xc60
-	.long	exception_error			!  84 0xc80
-	.long	exception_error			!  85 0xca0
-	.long	exception_error			!  86 0xcc0
-	.long	exception_error			!  87 0xce0
-	.long	exception_error			!  88 0xd00
-	.long	exception_error			!  89 0xd20
-	.long	exception_error			!  90 0xd40
-	.long	exception_error			!  91 0xd60
-	.long	exception_error			!  92 0xd80
-	.long	exception_error			!  93 0xda0
-	.long	exception_error			!  94 0xdc0
-	.long	exception_error			!  95 0xde0
-	.long	exception_error			!  96 0xe00
-	.long	exception_error			!  97 0xe20
-	.long	exception_error			!  98 0xe40
-	.long	exception_error			!  99 0xe60
-	.long	exception_error			! 100 0xe80
-	.long	exception_error			! 101 0xea0
-	.long	exception_error			! 102 0xec0
-	.long	exception_error			! 103 0xee0
-	.long	exception_error			! 104 0xf00
-	.long	exception_error			! 105 0xf20
-	.long	exception_error			! 106 0xf40
-	.long	exception_error			! 107 0xf60
-	.long	exception_error			! 108 0xf80
-	.long	exception_error			! 109 0xfa0
-	.long	exception_error			! 110 0xfc0
-	.long	exception_error			! 111 0xfe0
-	.long	do_IRQ	! 112 0x1000 Mailbox
-	.long	exception_error			! 113 0x1020
-	.long	exception_error			! 114 0x1040
-	.long	exception_error			! 115 0x1060
-	.long	exception_error			! 116 0x1080
-	.long	exception_error			! 117 0x10a0
-	.long	exception_error			! 118 0x10c0
-	.long	exception_error			! 119 0x10e0
-	.long	exception_error			! 120 0x1100
-	.long	exception_error			! 121 0x1120
-	.long	exception_error			! 122 0x1140
-	.long	exception_error			! 123 0x1160
-	.long	exception_error			! 124 0x1180
-	.long	exception_error			! 125 0x11a0
-	.long	exception_error			! 126 0x11c0
-	.long	exception_error			! 127 0x11e0
-	.long	exception_error			! 128 0x1200
-	.long	exception_error			! 129 0x1220
-	.long	exception_error			! 130 0x1240
-	.long	exception_error			! 131 0x1260
-	.long	exception_error			! 132 0x1280
-	.long	exception_error			! 133 0x12a0
-	.long	exception_error			! 134 0x12c0
-	.long	exception_error			! 135 0x12e0
-	.long	exception_error			! 136 0x1300
-	.long	exception_error			! 137 0x1320
-	.long	exception_error			! 138 0x1340
-	.long	exception_error			! 139 0x1360
-	.long	do_IRQ	! 140 0x1380 EMPI INV_ADDR
-	.long	exception_error			! 141 0x13a0
-	.long	exception_error			! 142 0x13c0
-	.long	exception_error			! 143 0x13e0
-#elif defined(CONFIG_CPU_SUBTYPE_SH7770)
-	.long	do_IRQ	!  50 0x840
-	.long	do_IRQ	!  51 0x860
-	.long	do_IRQ	!  52 0x880
-	.long	do_IRQ	!  53 0x8a0
-	.long	do_IRQ	!  54 0x8c0
-	.long	do_IRQ	!  55 0x8e0
-	.long	do_IRQ	!  56 0x900
-	.long	do_IRQ	!  57 0x920
-	.long	do_IRQ	!  58 0x940
-	.long	do_IRQ	!  59 0x960
-	.long	do_IRQ	!  60 0x980
-	.long	do_IRQ	!  61 0x9a0
-	.long	do_IRQ	!  62 0x9c0
-	.long	do_IRQ	!  63 0x9e0
-	.long	do_IRQ	!  64 0xa00
-	.long	do_IRQ	!  65 0xa20
-	.long	do_IRQ	!  66 0xa4d
-	.long	do_IRQ	!  67 0xa60
-	.long	do_IRQ	!  68 0xa80
-	.long	do_IRQ	!  69 0xaa0
-	.long	do_IRQ	!  70 0xac0
-	.long	do_IRQ	!  71 0xae0
-	.long	do_IRQ	!  72 0xb00
-	.long	do_IRQ	!  73 0xb20
-	.long	do_IRQ	!  74 0xb40
-	.long	do_IRQ	!  75 0xb60
-	.long	do_IRQ	!  76 0xb80
-	.long	do_IRQ	!  77 0xba0
-	.long	do_IRQ	!  78 0xbc0
-	.long	do_IRQ	!  79 0xbe0
-	.long	do_IRQ	!  80 0xc00
-	.long	do_IRQ	!  81 0xc20
-	.long	do_IRQ	!  82 0xc40
-	.long	do_IRQ	!  83 0xc60
-	.long	do_IRQ	!  84 0xc80
-	.long	do_IRQ	!  85 0xca0
-	.long	do_IRQ	!  86 0xcc0
-	.long	do_IRQ	!  87 0xce0
-	.long	do_IRQ	!  88 0xd00
-	.long	do_IRQ	!  89 0xd20
-	.long	do_IRQ	!  90 0xd40
-	.long	do_IRQ	!  91 0xd60
-	.long	do_IRQ	!  92 0xd80
-	.long	do_IRQ	!  93 0xda0
-	.long	do_IRQ	!  94 0xdc0
-	.long	do_IRQ	!  95 0xde0
-	.long	do_IRQ	!  96 0xe00
-	.long	do_IRQ	!  97 0xe20
-	.long	do_IRQ	!  98 0xe40
-	.long	do_IRQ	!  99 0xe60
-	.long	do_IRQ	! 100 0xe80
-	.long	do_IRQ	! 101 0xea0
-	.long	do_IRQ	! 102 0xec0
-	.long	do_IRQ	! 103 0xee0
-	.long	do_IRQ	! 104 0xf00
-	.long	do_IRQ	! 105 0xf20
-	.long	do_IRQ	! 106 0xf40
-	.long	do_IRQ	! 107 0xf60
-	.long	do_IRQ	! 108 0xf80
-#endif
-#else
-	.long	exception_error		/* 400 */
-	.long	exception_error
-	.long	exception_error
-	.long	exception_error
-	.long	do_IRQ	! RTC	ati
-	.long	do_IRQ	!	pri
-	.long	do_IRQ	!	cui
-	.long	exception_error
-	.long	exception_error		/* 500 */
-	.long	exception_error
-	.long	exception_error
-	.long	do_IRQ	! WDT	iti	/* 560 */
-	.long	do_IRQ	! TMU-ch0
-	.long	do_IRQ	! TMU-ch1
-	.long	do_IRQ	! TMU-ch2
-	.long	do_IRQ	! ticpi2	/* 5E0 */
-	.long	do_IRQ	! 32 Hitachi UDI	/* 600 */
-	.long	exception_error
-	.long	do_IRQ	! 34 DMAC dmte0
-	.long	do_IRQ	! 35	  dmte1
-	.long	do_IRQ	! 36	  dmte2
-	.long	do_IRQ	! 37	  dmte3
-	.long	do_IRQ	! 38	  dmae
-	.long	exception_error			! 39	/* 6E0 */
-	.long	do_IRQ	! 40 SCIF-ch0 eri		/* 700 */
-	.long	do_IRQ	! 41	      rxi
-	.long	do_IRQ	! 42	      bri
-	.long	do_IRQ	! 43	      txi
-	.long	do_IRQ	! 44 DMAC dmte4		/* 780 */
-	.long	do_IRQ	! 45	  dmte5
-	.long	do_IRQ	! 46	  dmte6
-	.long	do_IRQ	! 47	  dmte7		/* 7E0 */
-#if defined(CONFIG_SH_FPU)
-	.long	do_fpu_state_restore	! 48	/* 800 */
-	.long	do_fpu_state_restore	! 49	/* 820 */
-#else
-	.long	exception_error
-	.long	exception_error
-#endif
-	.long	exception_error			/* 840 */
-	.long	exception_error
-	.long	exception_error
-	.long	exception_error
-	.long	exception_error
-	.long	exception_error
-	.long	do_IRQ	! 56 CMT	/* 900 */
-	.long	exception_error
-	.long	exception_error
-	.long	exception_error
-	.long	do_IRQ	! 60 HAC
-	.long	exception_error
-	.long	exception_error
-	.long	exception_error
-	.long	do_IRQ	! PCI serr	/* A00 */
-	.long	do_IRQ	!     INTA
-	.long	do_IRQ	!     INTB
-	.long	do_IRQ	!     INTC
-	.long	do_IRQ	!     INTD
-	.long	do_IRQ	!     err
-	.long	do_IRQ	!     pwd3
-	.long	do_IRQ	!     pwd2
-	.long	do_IRQ	!     pwd1	/* B00 */
-	.long	do_IRQ	!     pwd0
-	.long	exception_error
-	.long	exception_error
-	.long	do_IRQ	! SCIF-ch1 eri	/* B80 */
-	.long	do_IRQ	!	   rxi
-	.long	do_IRQ	!	   bri
-	.long	do_IRQ	!	   txi
-	.long	do_IRQ	! SIOF		/* C00 */
-	.long	exception_error
-	.long	exception_error
-	.long	exception_error
-	.long	do_IRQ	! HSPI		/* C80 */
-	.long	exception_error
-	.long	exception_error
-	.long	exception_error
-	.long	do_IRQ	! MMCIF	fatat	/* D00 */
-	.long	do_IRQ	!	tran
-	.long	do_IRQ	!	err
-	.long	do_IRQ	!	frdy
-	.long	do_IRQ	! DMAC dmint8	/* D80 */
-	.long	do_IRQ	!      dmint9
-	.long	do_IRQ	!      dmint10
-	.long	do_IRQ	!      dmint11
-	.long	do_IRQ	! TMU-ch3	/* E00 */
-	.long	do_IRQ	! TMU-ch4
-	.long	do_IRQ	! TMU-ch5
-	.long	exception_error
-	.long	do_IRQ	! SSI
-	.long	exception_error
-	.long	exception_error
-	.long	exception_error
-	.long	do_IRQ	! FLCTL	flste	/* F00 */
-	.long	do_IRQ	!	fltend
-	.long	do_IRQ	!	fltrq0
-	.long	do_IRQ	!	fltrq1
-	.long	do_IRQ	! GPIO gpioi0	/* F80 */
-	.long	do_IRQ	!      gpioi1
-	.long	do_IRQ	!      gpioi2
-	.long	do_IRQ	!      gpioi3
-#endif
-
diff --git a/arch/sh/kernel/entry.S b/arch/sh/kernel/entry.S
index 97c571fbcdf1..39aaefb2d83f 100644
--- a/arch/sh/kernel/entry.S
+++ b/arch/sh/kernel/entry.S
@@ -1,9 +1,8 @@
-/* $Id: entry.S,v 1.37 2004/06/11 13:02:46 doyu Exp $
- *
+/*
  *  linux/arch/sh/entry.S
  *
  *  Copyright (C) 1999, 2000, 2002  Niibe Yutaka
- *  Copyright (C) 2003  Paul Mundt
+ *  Copyright (C) 2003 - 2006  Paul Mundt
  *
  * 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
@@ -78,7 +77,6 @@ OFF_TRA	=  (16*4+6*4)
 #define k3	r3
 #define k4	r4
 
-#define k_ex_code	r2_bank	/* r2_bank1 */
 #define g_imask		r6	/* r6_bank1 */
 #define k_g_imask	r6_bank	/* r6_bank1 */
 #define current		r7	/* r7_bank1 */
@@ -691,7 +689,7 @@ interrupt:
 0:
 #endif /* defined(CONFIG_KGDB_NMI) */
 	bra	handle_exception
-	 mov.l	@k2, k2
+	 mov	#-1, k2		! interrupt exception marker
 
 	.align	2
 1:	.long	EXPEVT
@@ -717,8 +715,7 @@ ENTRY(handle_exception)
 	add	current, k1
 	mov	k1, r15		! change to kernel stack
 	!
-1:  	mov	#-1, k4
-	mov.l	2f, k1
+1:	mov.l	2f, k1
 	!
 #ifdef CONFIG_SH_DSP
 	mov.l	r2, @-r15		! Save r2, we need another reg
@@ -763,6 +760,8 @@ skip_save:
 #endif
 	! Save the user registers on the stack.
 	mov.l	k2, @-r15	! EXPEVT
+
+ 	mov	#-1, k4
 	mov.l	k4, @-r15	! set TRA (default: -1)
 	!
 	sts.l	macl, @-r15
@@ -797,8 +796,21 @@ skip_save:
 	mov.l	r2, @-r15
 	mov.l	r1, @-r15
 	mov.l	r0, @-r15
-	! Then, dispatch to the handler, according to the exception code.
-	stc	k_ex_code, r8
+
+	/*
+	 * This gets a bit tricky.. in the INTEVT case we don't want to use
+	 * the VBR offset as a destination in the jump call table, since all
+	 * of the destinations are the same. In this case, (interrupt) sets
+	 * a marker in r2 (now r2_bank since SR.RB changed), which we check
+	 * to determine the exception type. For all other exceptions, we
+	 * forcibly read EXPEVT from memory and fix up the jump address, in
+	 * the interrupt exception case we jump to do_IRQ() and defer the
+	 * INTEVT read until there. As a bonus, we can also clean up the SR.RB
+	 * checks that do_IRQ() was doing..
+	 */
+	stc	r2_bank, r8
+	cmp/pz	r8
+	bf	interrupt_exception
 	shlr2	r8
 	shlr	r8
 	mov.l	4f, r9
@@ -806,6 +818,8 @@ skip_save:
 	mov.l	@r9, r9
 	jmp	@r9
 	 nop
+	rts
+	 nop
 
 	.align	2
 1:	.long	0x00001000	! DSP=1
@@ -813,8 +827,17 @@ skip_save:
 3:	.long	0xcfffffff	! RB=0, BL=0
 4:	.long	exception_handling_table
 
+interrupt_exception:
+	mov.l	1f, r9
+	jmp	@r9
+	 nop
+	rts
+	 nop
+
+	.align 2
+1:	.long	do_IRQ
+
 	.align	2
 ENTRY(exception_none)
 	rts
 	 nop
-
diff --git a/arch/sh/kernel/irq.c b/arch/sh/kernel/irq.c
index c7ebd6aec951..acf2602569c4 100644
--- a/arch/sh/kernel/irq.c
+++ b/arch/sh/kernel/irq.c
@@ -11,12 +11,15 @@
 #include <linux/module.h>
 #include <linux/kernel_stat.h>
 #include <linux/seq_file.h>
+#include <linux/io.h>
 #include <asm/irq.h>
 #include <asm/processor.h>
 #include <asm/uaccess.h>
 #include <asm/thread_info.h>
 #include <asm/cpu/mmu_context.h>
 
+atomic_t irq_err_count;
+
 /*
  * 'what should we do if we get a hw irq event on an illegal vector'.
  * each architecture has to answer this themselves, it doesn't deserve
@@ -24,6 +27,7 @@
  */
 void ack_bad_irq(unsigned int irq)
 {
+	atomic_inc(&irq_err_count);
 	printk("unexpected IRQ trap at vector %02x\n", irq);
 }
 
@@ -47,8 +51,10 @@ int show_interrupts(struct seq_file *p, void *v)
 		if (!action)
 			goto unlock;
 		seq_printf(p, "%3d: ",i);
-		seq_printf(p, "%10u ", kstat_irqs(i));
-		seq_printf(p, " %14s", irq_desc[i].chip->typename);
+		for_each_online_cpu(j)
+			seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
+		seq_printf(p, " %14s", irq_desc[i].chip->name);
+		seq_printf(p, "-%s", handle_irq_name(irq_desc[i].handle_irq));
 		seq_printf(p, "  %s", action->name);
 
 		for (action=action->next; action; action = action->next)
@@ -56,7 +62,9 @@ int show_interrupts(struct seq_file *p, void *v)
 		seq_putc(p, '\n');
 unlock:
 		spin_unlock_irqrestore(&irq_desc[i].lock, flags);
-	}
+	} else if (i == NR_IRQS)
+		seq_printf(p, "Err: %10u\n", atomic_read(&irq_err_count));
+
 	return 0;
 }
 #endif
@@ -78,7 +86,8 @@ asmlinkage int do_IRQ(unsigned long r4, unsigned long r5,
 		      unsigned long r6, unsigned long r7,
 		      struct pt_regs regs)
 {
-	int irq = r4;
+	struct pt_regs *old_regs = set_irq_regs(&regs);
+	int irq;
 #ifdef CONFIG_4KSTACKS
 	union irq_ctx *curctx, *irqctx;
 #endif
@@ -102,20 +111,9 @@ asmlinkage int do_IRQ(unsigned long r4, unsigned long r5,
 #endif
 
 #ifdef CONFIG_CPU_HAS_INTEVT
-	__asm__ __volatile__ (
-#ifdef CONFIG_CPU_HAS_SR_RB
-		"stc	r2_bank, %0\n\t"
+	irq = (ctrl_inl(INTEVT) >> 5) - 16;
 #else
-		"mov.l	@%1, %0\n\t"
-#endif
-		"shlr2	%0\n\t"
-		"shlr2	%0\n\t"
-		"shlr	%0\n\t"
-		"add	#-16, %0\n\t"
-		: "=z" (irq), "=r" (r4)
-		: "1" (INTEVT)
-		: "memory"
-	);
+	irq = r4;
 #endif
 
 	irq = irq_demux(irq);
@@ -139,25 +137,25 @@ asmlinkage int do_IRQ(unsigned long r4, unsigned long r5,
 
 		__asm__ __volatile__ (
 			"mov	%0, r4		\n"
-			"mov	%1, r5		\n"
 			"mov	r15, r9		\n"
-			"jsr	@%2		\n"
+			"jsr	@%1		\n"
 			/* swith to the irq stack */
-			" mov	%3, r15		\n"
+			" mov	%2, r15		\n"
 			/* restore the stack (ring zero) */
 			"mov	r9, r15		\n"
 			: /* no outputs */
-			: "r" (irq), "r" (&regs), "r" (__do_IRQ), "r" (isp)
+			: "r" (irq), "r" (generic_handle_irq), "r" (isp)
 			/* XXX: A somewhat excessive clobber list? -PFM */
 			: "memory", "r0", "r1", "r2", "r3", "r4",
 			  "r5", "r6", "r7", "r8", "t", "pr"
 		);
 	} else
 #endif
-		__do_IRQ(irq, &regs);
+		generic_handle_irq(irq);
 
 	irq_exit();
 
+	set_irq_regs(old_regs);
 	return 1;
 }
 
diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c
index 0b1d5dd7a93b..91516dca4a85 100644
--- a/arch/sh/kernel/process.c
+++ b/arch/sh/kernel/process.c
@@ -5,6 +5,7 @@
  *  Copyright (C) 1995  Linus Torvalds
  *
  *  SuperH version:  Copyright (C) 1999, 2000  Niibe Yutaka & Kaz Kojima
+ *		     Copyright (C) 2006 Lineo Solutions Inc. support SH4A UBC
  */
 
 /*
@@ -290,6 +291,24 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
 static void
 ubc_set_tracing(int asid, unsigned long pc)
 {
+#if defined(CONFIG_CPU_SH4A)
+	unsigned long val;
+
+	val = (UBC_CBR_ID_INST | UBC_CBR_RW_READ | UBC_CBR_CE);
+	val |= (UBC_CBR_AIE | UBC_CBR_AIV_SET(asid));
+
+	ctrl_outl(val, UBC_CBR0);
+	ctrl_outl(pc,  UBC_CAR0);
+	ctrl_outl(0x0, UBC_CAMR0);
+	ctrl_outl(0x0, UBC_CBCR);
+
+	val = (UBC_CRR_RES | UBC_CRR_PCB | UBC_CRR_BIE);
+	ctrl_outl(val, UBC_CRR0);
+
+	/* Read UBC register that we writed last. For chekking UBC Register changed */
+	val = ctrl_inl(UBC_CRR0);
+
+#else	/* CONFIG_CPU_SH4A */
 	ctrl_outl(pc, UBC_BARA);
 
 #ifdef CONFIG_MMU
@@ -307,6 +326,7 @@ ubc_set_tracing(int asid, unsigned long pc)
 		ctrl_outw(BBR_INST | BBR_READ, UBC_BBRA);
 		ctrl_outw(BRCR_PCBA, UBC_BRCR);
 	}
+#endif	/* CONFIG_CPU_SH4A */
 }
 
 /*
@@ -359,8 +379,13 @@ struct task_struct *__switch_to(struct task_struct *prev, struct task_struct *ne
 #endif
 		ubc_set_tracing(asid, next->thread.ubc_pc);
 	} else {
+#if defined(CONFIG_CPU_SH4A)
+		ctrl_outl(UBC_CBR_INIT, UBC_CBR0);
+		ctrl_outl(UBC_CRR_INIT, UBC_CRR0);
+#else
 		ctrl_outw(0, UBC_BBRA);
 		ctrl_outw(0, UBC_BBRB);
+#endif
 	}
 
 	return prev;
@@ -460,8 +485,13 @@ asmlinkage void break_point_trap(unsigned long r4, unsigned long r5,
 				 struct pt_regs regs)
 {
 	/* Clear tracing.  */
+#if defined(CONFIG_CPU_SH4A)
+	ctrl_outl(UBC_CBR_INIT, UBC_CBR0);
+	ctrl_outl(UBC_CRR_INIT, UBC_CRR0);
+#else
 	ctrl_outw(0, UBC_BBRA);
 	ctrl_outw(0, UBC_BBRB);
+#endif
 	current->thread.ubc_pc = 0;
 	ubc_usercnt -= 1;
 
diff --git a/arch/sh/kernel/time.c b/arch/sh/kernel/time.c
index 450c68f1df05..57e708d7b52d 100644
--- a/arch/sh/kernel/time.c
+++ b/arch/sh/kernel/time.c
@@ -47,6 +47,7 @@ unsigned long long __attribute__ ((weak)) sched_clock(void)
 	return (unsigned long long)jiffies * (1000000000 / HZ);
 }
 
+#ifndef CONFIG_GENERIC_TIME
 void do_gettimeofday(struct timeval *tv)
 {
 	unsigned long seq;
@@ -99,6 +100,7 @@ int do_settimeofday(struct timespec *tv)
 	return 0;
 }
 EXPORT_SYMBOL(do_settimeofday);
+#endif /* !CONFIG_GENERIC_TIME */
 
 /* last time the RTC clock got updated */
 static long last_rtc_update;
@@ -107,13 +109,14 @@ static long last_rtc_update;
  * handle_timer_tick() needs to keep up the real-time clock,
  * as well as call the "do_timer()" routine every clocktick
  */
-void handle_timer_tick(struct pt_regs *regs)
+void handle_timer_tick(void)
 {
 	do_timer(1);
 #ifndef CONFIG_SMP
-	update_process_times(user_mode(regs));
+	update_process_times(user_mode(get_irq_regs()));
 #endif
-	profile_tick(CPU_PROFILING, regs);
+	if (current->pid)
+		profile_tick(CPU_PROFILING);
 
 #ifdef CONFIG_HEARTBEAT
 	if (sh_mv.mv_heartbeat != NULL)
diff --git a/arch/sh/kernel/timers/timer-tmu.c b/arch/sh/kernel/timers/timer-tmu.c
index 205816fcf0da..24927015dc31 100644
--- a/arch/sh/kernel/timers/timer-tmu.c
+++ b/arch/sh/kernel/timers/timer-tmu.c
@@ -80,8 +80,7 @@ static unsigned long tmu_timer_get_offset(void)
 	return count;
 }
 
-static irqreturn_t tmu_timer_interrupt(int irq, void *dev_id,
-				       struct pt_regs *regs)
+static irqreturn_t tmu_timer_interrupt(int irq, void *dummy)
 {
 	unsigned long timer_status;
 
@@ -98,7 +97,7 @@ static irqreturn_t tmu_timer_interrupt(int irq, void *dev_id,
 	 * locally disabled. -arca
 	 */
 	write_seqlock(&xtime_lock);
-	handle_timer_tick(regs);
+	handle_timer_tick();
 	write_sequnlock(&xtime_lock);
 
 	return IRQ_HANDLED;
@@ -111,60 +110,6 @@ static struct irqaction tmu_irq = {
 	.mask		= CPU_MASK_NONE,
 };
 
-/*
- * Hah!  We'll see if this works (switching from usecs to nsecs).
- */
-static unsigned long tmu_timer_get_frequency(void)
-{
-	u32 freq;
-	struct timespec ts1, ts2;
-	unsigned long diff_nsec;
-	unsigned long factor;
-
-	/* Setup the timer:  We don't want to generate interrupts, just
-	 * have it count down at its natural rate.
-	 */
-	ctrl_outb(0, TMU_TSTR);
-#if !defined(CONFIG_CPU_SUBTYPE_SH7300) && !defined(CONFIG_CPU_SUBTYPE_SH7760)
-	ctrl_outb(TMU_TOCR_INIT, TMU_TOCR);
-#endif
-	ctrl_outw(TMU0_TCR_CALIB, TMU0_TCR);
-	ctrl_outl(0xffffffff, TMU0_TCOR);
-	ctrl_outl(0xffffffff, TMU0_TCNT);
-
-	rtc_sh_get_time(&ts2);
-
-	do {
-		rtc_sh_get_time(&ts1);
-	} while (ts1.tv_nsec == ts2.tv_nsec && ts1.tv_sec == ts2.tv_sec);
-
-	/* actually start the timer */
-	ctrl_outb(TMU_TSTR_INIT, TMU_TSTR);
-
-	do {
-		rtc_sh_get_time(&ts2);
-	} while (ts1.tv_nsec == ts2.tv_nsec && ts1.tv_sec == ts2.tv_sec);
-
-	freq = 0xffffffff - ctrl_inl(TMU0_TCNT);
-	if (ts2.tv_nsec < ts1.tv_nsec) {
-		ts2.tv_nsec += 1000000000;
-		ts2.tv_sec--;
-	}
-
-	diff_nsec = (ts2.tv_sec - ts1.tv_sec) * 1000000000 + (ts2.tv_nsec - ts1.tv_nsec);
-
-	/* this should work well if the RTC has a precision of n Hz, where
-	 * n is an integer.  I don't think we have to worry about the other
-	 * cases. */
-	factor = (1000000000 + diff_nsec/2) / diff_nsec;
-
-	if (factor * diff_nsec > 1100000000 ||
-	    factor * diff_nsec <  900000000)
-		panic("weird RTC (diff_nsec %ld)", diff_nsec);
-
-	return freq * factor;
-}
-
 static void tmu_clk_init(struct clk *clk)
 {
 	u8 divisor = TMU0_TCR_INIT & 0x7;
@@ -232,12 +177,12 @@ struct sys_timer_ops tmu_timer_ops = {
 	.init		= tmu_timer_init,
 	.start		= tmu_timer_start,
 	.stop		= tmu_timer_stop,
-	.get_frequency	= tmu_timer_get_frequency,
+#ifndef CONFIG_GENERIC_TIME
 	.get_offset	= tmu_timer_get_offset,
+#endif
 };
 
 struct sys_timer tmu_timer = {
 	.name	= "tmu",
 	.ops	= &tmu_timer_ops,
 };
-
diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c
index c81e6b67ad30..38c82d890ffd 100644
--- a/arch/sh/mm/consistent.c
+++ b/arch/sh/mm/consistent.c
@@ -28,6 +28,7 @@ void *consistent_alloc(gfp_t gfp, size_t size, dma_addr_t *handle)
 	split_page(page, order);
 
 	ret = page_address(page);
+	memset(ret, 0, size);
 	*handle = virt_to_phys(ret);
 
 	/*
diff --git a/drivers/rtc/rtc-sh.c b/drivers/rtc/rtc-sh.c
index 8b6efcc05058..143302a8e79c 100644
--- a/drivers/rtc/rtc-sh.c
+++ b/drivers/rtc/rtc-sh.c
@@ -160,7 +160,7 @@ static int sh_rtc_open(struct device *dev)
 	tmp |= RCR1_CIE;
 	writeb(tmp, rtc->regbase + RCR1);
 
-	ret = request_irq(rtc->periodic_irq, sh_rtc_periodic, SA_INTERRUPT,
+	ret = request_irq(rtc->periodic_irq, sh_rtc_periodic, IRQF_DISABLED,
 			  "sh-rtc period", dev);
 	if (unlikely(ret)) {
 		dev_err(dev, "request period IRQ failed with %d, IRQ %d\n",
@@ -168,7 +168,7 @@ static int sh_rtc_open(struct device *dev)
 		return ret;
 	}
 
-	ret = request_irq(rtc->carry_irq, sh_rtc_interrupt, SA_INTERRUPT,
+	ret = request_irq(rtc->carry_irq, sh_rtc_interrupt, IRQF_DISABLED,
 			  "sh-rtc carry", dev);
 	if (unlikely(ret)) {
 		dev_err(dev, "request carry IRQ failed with %d, IRQ %d\n",
@@ -177,7 +177,7 @@ static int sh_rtc_open(struct device *dev)
 		goto err_bad_carry;
 	}
 
-	ret = request_irq(rtc->alarm_irq, sh_rtc_interrupt, SA_INTERRUPT,
+	ret = request_irq(rtc->alarm_irq, sh_rtc_interrupt, IRQF_DISABLED,
 			  "sh-rtc alarm", dev);
 	if (unlikely(ret)) {
 		dev_err(dev, "request alarm IRQ failed with %d, IRQ %d\n",
diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c
index 266aa325569e..cfcc3caf49d8 100644
--- a/drivers/serial/sh-sci.c
+++ b/drivers/serial/sh-sci.c
@@ -808,7 +808,7 @@ static int sci_request_irq(struct sci_port *port)
 		}
 
 		if (request_irq(port->irqs[0], sci_mpxed_interrupt,
-				SA_INTERRUPT, "sci", port)) {
+				IRQF_DISABLED, "sci", port)) {
 			printk(KERN_ERR "sci: Cannot allocate irq.\n");
 			return -ENODEV;
 		}
@@ -817,7 +817,7 @@ static int sci_request_irq(struct sci_port *port)
 			if (!port->irqs[i])
 				continue;
 			if (request_irq(port->irqs[i], handlers[i],
-					SA_INTERRUPT, desc[i], port)) {
+					IRQF_DISABLED, desc[i], port)) {
 				printk(KERN_ERR "sci: Cannot allocate irq.\n");
 				return -ENODEV;
 			}
diff --git a/include/asm-sh/cpu-sh4/ubc.h b/include/asm-sh/cpu-sh4/ubc.h
index 3d0943167659..c86e17050935 100644
--- a/include/asm-sh/cpu-sh4/ubc.h
+++ b/include/asm-sh/cpu-sh4/ubc.h
@@ -3,6 +3,7 @@
  *
  * Copyright (C) 1999 Niibe Yutaka
  * Copyright (C) 2003 Paul Mundt
+ * Copyright (C) 2006 Lineo Solutions Inc. support SH4A UBC
  *
  * 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
@@ -11,6 +12,41 @@
 #ifndef __ASM_CPU_SH4_UBC_H
 #define __ASM_CPU_SH4_UBC_H
 
+#if defined(CONFIG_CPU_SH4A)
+#define UBC_CBR0		0xff200000
+#define UBC_CRR0		0xff200004
+#define UBC_CAR0		0xff200008
+#define UBC_CAMR0		0xff20000c
+#define UBC_CBR1		0xff200020
+#define UBC_CRR1		0xff200024
+#define UBC_CAR1		0xff200028
+#define UBC_CAMR1		0xff20002c
+#define UBC_CDR1		0xff200030
+#define UBC_CDMR1		0xff200034
+#define UBC_CETR1		0xff200038
+#define UBC_CCMFR		0xff200600
+#define UBC_CBCR		0xff200620
+
+/* CBR	*/
+#define UBC_CBR_AIE		(0x01<<30)
+#define UBC_CBR_ID_INST		(0x01<<4)
+#define UBC_CBR_RW_READ		(0x01<<1)
+#define UBC_CBR_CE		(0x01)
+
+#define	UBC_CBR_AIV_MASK	(0x00FF0000)
+#define	UBC_CBR_AIV_SHIFT	(16)
+#define UBC_CBR_AIV_SET(asid)	(((asid)<<UBC_CBR_AIV_SHIFT) & UBC_CBR_AIV_MASK)
+
+#define UBC_CBR_INIT		0x20000000
+
+/* CRR	*/
+#define UBC_CRR_RES		(0x01<<13)
+#define UBC_CRR_PCB		(0x01<<1)
+#define UBC_CRR_BIE		(0x01)
+
+#define UBC_CRR_INIT		0x00002000
+
+#else	/* CONFIG_CPU_SH4 */
 #define UBC_BARA		0xff200000
 #define UBC_BAMRA		0xff200004
 #define UBC_BBRA		0xff200008
@@ -22,6 +58,7 @@
 #define UBC_BDRB		0xff200018
 #define UBC_BDMRB		0xff20001c
 #define UBC_BRCR		0xff200020
+#endif	/* CONFIG_CPU_SH4 */
 
 #endif /* __ASM_CPU_SH4_UBC_H */
 
diff --git a/include/asm-sh/hw_irq.h b/include/asm-sh/hw_irq.h
index fed26616967a..80ee1cda7498 100644
--- a/include/asm-sh/hw_irq.h
+++ b/include/asm-sh/hw_irq.h
@@ -1,4 +1,8 @@
 #ifndef __ASM_SH_HW_IRQ_H
 #define __ASM_SH_HW_IRQ_H
 
+#include <asm/atomic.h>
+
+extern atomic_t irq_err_count;
+
 #endif /* __ASM_SH_HW_IRQ_H */
diff --git a/include/asm-sh/irq.h b/include/asm-sh/irq.h
index 0e5f365aff70..28996f9c58cc 100644
--- a/include/asm-sh/irq.h
+++ b/include/asm-sh/irq.h
@@ -697,13 +697,15 @@ extern int ipr_irq_demux(int irq);
 
 #define INTC2_INTPRI_OFFSET	0x00
 
-void make_intc2_irq(unsigned int irq,
-		    unsigned int ipr_offset, unsigned int ipr_shift,
-		    unsigned int msk_offset, unsigned int msk_shift,
-		    unsigned int priority);
+struct intc2_data {
+	unsigned short irq;
+	unsigned char ipr_offset, ipr_shift;
+	unsigned char msk_offset, msk_shift;
+	unsigned char priority;
+};
+
+void make_intc2_irq(struct intc2_data *);
 void init_IRQ_intc2(void);
-void intc2_add_clear_irq(int irq, int (*fn)(int));
-
 #endif
 
 extern int shmse_irq_demux(int irq);
diff --git a/include/asm-sh/irq_regs.h b/include/asm-sh/irq_regs.h
new file mode 100644
index 000000000000..3dd9c0b70270
--- /dev/null
+++ b/include/asm-sh/irq_regs.h
@@ -0,0 +1 @@
+#include <asm-generic/irq_regs.h>
diff --git a/include/asm-sh/timer.h b/include/asm-sh/timer.h
index c7ab28095ba0..5df842bcf7b6 100644
--- a/include/asm-sh/timer.h
+++ b/include/asm-sh/timer.h
@@ -8,8 +8,9 @@ struct sys_timer_ops {
 	int (*init)(void);
 	int (*start)(void);
 	int (*stop)(void);
+#ifndef CONFIG_GENERIC_TIME
 	unsigned long (*get_offset)(void);
-	unsigned long (*get_frequency)(void);
+#endif
 };
 
 struct sys_timer {
@@ -24,21 +25,17 @@ struct sys_timer {
 extern struct sys_timer tmu_timer;
 extern struct sys_timer *sys_timer;
 
+#ifndef CONFIG_GENERIC_TIME
 static inline unsigned long get_timer_offset(void)
 {
 	return sys_timer->ops->get_offset();
 }
-
-static inline unsigned long get_timer_frequency(void)
-{
-	return sys_timer->ops->get_frequency();
-}
+#endif
 
 /* arch/sh/kernel/timers/timer.c */
 struct sys_timer *get_sys_timer(void);
 
 /* arch/sh/kernel/time.c */
-void handle_timer_tick(struct pt_regs *);
+void handle_timer_tick(void);
 
 #endif /* __ASM_SH_TIMER_H */
-