[ARM PATCH] 1884/1: OMAP update 1/2: arch files

Patch from Tony Lindgren

This patch syncs the mainline kernel with the linux-omap tree.
The highlights of the patch are:
- Changed the BOOT_MEM() to use the new IO address (Tony Lindgren)
- Cleaned up interrupt handler (Juha Yrjölä)
- DMA channel linking for 1610 (Samuel Ortiz)
- GPIO fixes (Juha Yrjölä)
- IRQ fix for OMAP-730 (Kevin Hilman)
- OMAP-1510 FPGA interrupt fix (Dirk Behme)
- OMAP-1610 voltage change settings (Todd Poynor)
- Uncompress kernel serial output fixes (Tony Lindgren)

arch/arm/mach-omap/board-generic.c

@@ -66,7 +66,7 @@ static void __init omap_generic_map_io(void)
 
 MACHINE_START(OMAP_GENERIC, "Generic OMAP-1510/1610")
 	MAINTAINER("Tony Lindgren <tony@atomide.com>")
-	BOOT_MEM(0x10000000, 0xe0000000, 0xe0000000)
+	BOOT_MEM(0x10000000, 0xfff00000, 0xfef00000)
 	BOOT_PARAMS(0x10000100)
 	MAPIO(omap_generic_map_io)
 	INITIRQ(omap_generic_init_irq)

arch/arm/mach-omap/board-innovator.c

@@ -149,7 +149,7 @@ static void __init innovator_map_io(void)
 
 MACHINE_START(OMAP_INNOVATOR, "TI-Innovator")
 	MAINTAINER("MontaVista Software, Inc.")
-	BOOT_MEM(0x10000000, 0xe0000000, 0xe0000000)
+	BOOT_MEM(0x10000000, 0xfff00000, 0xfef00000)
 	BOOT_PARAMS(0x10000100)
 	MAPIO(innovator_map_io)
 	INITIRQ(innovator_init_irq)

arch/arm/mach-omap/board-osk.c

@@ -89,7 +89,7 @@ static void __init osk_map_io(void)
 
 MACHINE_START(OMAP_OSK, "TI-OSK")
 	MAINTAINER("Dirk Behme <dirk.behme@de.bosch.com>")
-	BOOT_MEM(0x10000000, 0xe0000000, 0xe0000000)
+	BOOT_MEM(0x10000000, 0xfff00000, 0xfef00000)
 	BOOT_PARAMS(0x10000100)
 	MAPIO(osk_map_io)
 	INITIRQ(osk_init_irq)

arch/arm/mach-omap/board-perseus2.c

@@ -103,7 +103,7 @@ static void __init omap_perseus2_map_io(void)
 
 MACHINE_START(OMAP_PERSEUS2, "OMAP730 Perseus2")
 	MAINTAINER("Kevin Hilman <k-hilman@ti.com>")
-	BOOT_MEM(0x10000000, 0xe0000000, 0xe0000000)
+	BOOT_MEM(0x10000000, 0xfff00000, 0xfef00000)
 	BOOT_PARAMS(0x10000100)
 	MAPIO(omap_perseus2_map_io)
 	INITIRQ(omap_perseus2_init_irq)

arch/arm/mach-omap/dma.c

@@ -3,6 +3,7 @@
  *
  * Copyright (C) 2003 Nokia Corporation
  * Author: Juha Yrjl <juha.yrjola@nokia.com>
+ * DMA channel linking for 1610 by Samuel Ortiz <samuel.ortiz@nokia.com>
  *
  * Support functions for the OMAP internal DMA channels.
  *
@@ -34,6 +35,7 @@
 static int enable_1510_mode = 0;
 
 struct omap_dma_lch {
+	int next_lch;
 	int dev_id;
 	u16 saved_csr;
 	u16 enabled_irqs;
@@ -154,6 +156,38 @@ void omap_start_dma(int lch)
 {
 	u16 w;
 
+	if (!omap_dma_in_1510_mode()) {
+		int next_lch;
+
+		next_lch = dma_chan[lch].next_lch;
+
+		/* Enable the queue, if needed so. */
+		if (next_lch != -1) {
+			/* Clear the STOP_LNK bits */
+			w = omap_readw(OMAP_DMA_CLNK_CTRL_REG(lch));
+			w &= ~(1 << 14);
+			omap_writew(w, OMAP_DMA_CLNK_CTRL_REG(lch));
+			w = omap_readw(OMAP_DMA_CLNK_CTRL_REG(next_lch));
+			w &= ~(1 << 14);
+			omap_writew(w, OMAP_DMA_CLNK_CTRL_REG(next_lch));
+
+			/* And set the ENABLE_LNK bits */
+			omap_writew(next_lch | (1 << 15),
+				    OMAP_DMA_CLNK_CTRL_REG(lch));
+			/* The loop case */
+			if (dma_chan[next_lch].next_lch == lch)
+				omap_writew(lch | (1 << 15),
+					    OMAP_DMA_CLNK_CTRL_REG(next_lch));
+
+			/* Read CSR to make sure it's cleared. */
+			w = omap_readw(OMAP_DMA_CSR_REG(next_lch));
+			/* Enable some nice interrupts. */
+			omap_writew(dma_chan[next_lch].enabled_irqs,
+				    OMAP_DMA_CICR_REG(next_lch));
+			dma_chan[next_lch].flags |= OMAP_DMA_ACTIVE;
+		}
+	}
+
 	/* Read CSR to make sure it's cleared. */
 	w = omap_readw(OMAP_DMA_CSR_REG(lch));
 	/* Enable some nice interrupts. */
@@ -168,14 +202,37 @@ void omap_start_dma(int lch)
 void omap_stop_dma(int lch)
 {
 	u16 w;
+	int next_lch;
 
 	/* Disable all interrupts on the channel */
 	omap_writew(0, OMAP_DMA_CICR_REG(lch));
 
+	if (omap_dma_in_1510_mode()) {
 		w = omap_readw(OMAP_DMA_CCR_REG(lch));
 		w &= ~OMAP_DMA_CCR_EN;
 		omap_writew(w, OMAP_DMA_CCR_REG(lch));
 		dma_chan[lch].flags &= ~OMAP_DMA_ACTIVE;
+		return;
+	}
+
+	next_lch = dma_chan[lch].next_lch;
+
+	/*
+	 * According to thw HW spec, enabling the STOP_LNK bit
+	 * resets the CCR_EN bit at the same time.
+	 */
+	w = omap_readw(OMAP_DMA_CLNK_CTRL_REG(lch));
+	w |= (1 << 14);
+	w = omap_writew(w, OMAP_DMA_CLNK_CTRL_REG(lch));
+	dma_chan[lch].flags &= ~OMAP_DMA_ACTIVE;
+
+	if (next_lch != -1) {
+		omap_writew(0, OMAP_DMA_CICR_REG(next_lch));
+		w = omap_readw(OMAP_DMA_CLNK_CTRL_REG(next_lch));
+		w |= (1 << 14);
+		w = omap_writew(w, OMAP_DMA_CLNK_CTRL_REG(next_lch));
+		dma_chan[next_lch].flags &= ~OMAP_DMA_ACTIVE;
+	}
 }
 
 void omap_enable_dma_irq(int lch, u16 bits)
@@ -315,6 +372,56 @@ int omap_dma_in_1510_mode(void)
 	return enable_1510_mode;
 }
 
+/*
+ * lch_queue DMA will start right after lch_head one is finished.
+ * For this DMA link to start, you still need to start (see omap_start_dma)
+ * the first one. That will fire up the entire queue.
+ */
+void omap_dma_link_lch (int lch_head, int lch_queue)
+{
+	if (omap_dma_in_1510_mode()) {
+		printk(KERN_ERR "DMA linking is not supported in 1510 mode\n");
+		BUG();
+		return;
+	}
+
+	if ((dma_chan[lch_head].dev_id == -1) ||
+	    (dma_chan[lch_queue].dev_id == -1)) {
+		printk(KERN_ERR "omap_dma: trying to link non requested channels\n");
+		dump_stack();
+	}
+
+	dma_chan[lch_head].next_lch = lch_queue;
+}
+
+/*
+ * Once the DMA queue is stopped, we can destroy it.
+ */
+void omap_dma_unlink_lch (int lch_head, int lch_queue)
+{
+	if (omap_dma_in_1510_mode()) {
+		printk(KERN_ERR "DMA linking is not supported in 1510 mode\n");
+		BUG();
+		return;
+	}
+
+	if (dma_chan[lch_head].next_lch != lch_queue ||
+	    dma_chan[lch_head].next_lch == -1) {
+		printk(KERN_ERR "omap_dma: trying to unlink non linked channels\n");
+		dump_stack();
+	}
+
+
+	if ((dma_chan[lch_head].flags & OMAP_DMA_ACTIVE) ||
+	    (dma_chan[lch_head].flags & OMAP_DMA_ACTIVE)) {
+		printk(KERN_ERR "omap_dma: You need to stop the DMA channels before unlinking\n");
+		dump_stack();
+	}
+
+	dma_chan[lch_head].next_lch = -1;
+	dma_chan[lch_queue].next_lch = -1;
+}
+
 
 static struct lcd_dma_info {
 	spinlock_t lock;
@@ -522,6 +629,8 @@ static int __init omap_init_dma(void)
 
 	for (ch = 0; ch < dma_chan_count; ch++) {
 		dma_chan[ch].dev_id = -1;
+		dma_chan[ch].next_lch = -1;
+
 		if (ch >= 6 && enable_1510_mode)
 			continue;
 
@@ -551,6 +660,8 @@ EXPORT_SYMBOL(omap_stop_dma);
 EXPORT_SYMBOL(omap_set_dma_transfer_params);
 EXPORT_SYMBOL(omap_set_dma_src_params);
 EXPORT_SYMBOL(omap_set_dma_dest_params);
+EXPORT_SYMBOL(omap_dma_link_lch);
+EXPORT_SYMBOL(omap_dma_unlink_lch);
 
 EXPORT_SYMBOL(omap_request_lcd_dma);
 EXPORT_SYMBOL(omap_free_lcd_dma);

arch/arm/mach-omap/gpio.c

@@ -587,15 +587,15 @@ static void gpio_ack_irq(unsigned int irq)
 
 #ifdef CONFIG_ARCH_OMAP1510
 	if (bank->method == METHOD_GPIO_1510)
-		omap_writew(1 << gpio, bank->base + OMAP1510_GPIO_INT_STATUS);
+		omap_writew(1 << (gpio & 0x0f), bank->base + OMAP1510_GPIO_INT_STATUS);
 #endif
 #if defined(CONFIG_ARCH_OMAP1610) || defined(CONFIG_ARCH_OMAP5912)
 	if (bank->method == METHOD_GPIO_1610)
-		omap_writew(1 << gpio, bank->base + OMAP1610_GPIO_IRQSTATUS1);
+		omap_writew(1 << (gpio & 0x0f), bank->base + OMAP1610_GPIO_IRQSTATUS1);
 #endif
 #ifdef CONFIG_ARCH_OMAP730
 	if (bank->method == METHOD_GPIO_730)
-		omap_writel(1 << gpio, bank->base + OMAP730_GPIO_INT_STATUS);
+		omap_writel(1 << (gpio & 0x1f), bank->base + OMAP730_GPIO_INT_STATUS);
 #endif
 }
 

arch/arm/mach-omap/irq.c

@@ -5,6 +5,7 @@
  *
  * Copyright (C) 2004 Nokia Corporation
  * Written by Tony Lindgren <tony@atomide.com>
+ * Major cleanups by Juha Yrjl <juha.yrjola@nokia.com>
  *
  * Completely re-written to support various OMAP chips with bank specific
  * interrupt handlers.
@@ -49,10 +50,16 @@
 
 #include <asm/io.h>
 
-#include "irq.h"
+#define IRQ_BANK(irq) ((irq) >> 5)
+#define IRQ_BIT(irq)  ((irq) & 0x1f)
 
-static unsigned int banks = 0;
-static struct omap_irq_bank irq_banks[MAX_NR_IRQ_BANKS];
+struct omap_irq_bank {
+	unsigned long base_reg;
+	unsigned long trigger_map;
+};
+
+static unsigned int irq_bank_count = 0;
+static struct omap_irq_bank *irq_banks;
 
 static inline unsigned int irq_bank_readl(int bank, int offset)
 {
@@ -64,10 +71,7 @@ static inline void irq_bank_writel(unsigned long value, int bank, int offset)
 	omap_writel(value, irq_banks[bank].base_reg + offset);
 }
 
-/*
- * Ack routine for chips with register offsets of 0x100
- */
-static void omap_offset_ack_irq(unsigned int irq)
+static void omap_ack_irq(unsigned int irq)
 {
 	if (irq > 31)
 		omap_writel(0x1, OMAP_IH2_BASE + IRQ_CONTROL_REG);
@@ -75,83 +79,30 @@ static void omap_offset_ack_irq(unsigned int irq)
 	omap_writel(0x1, OMAP_IH1_BASE + IRQ_CONTROL_REG);
 }
 
-/*
- * Mask routine for chips with register offsets of 0x100
- */
-static void omap_offset_mask_irq(unsigned int irq)
+static void omap_mask_irq(unsigned int irq)
 {
-	int bank = IRQ_TO_BANK(irq);
+	int bank = IRQ_BANK(irq);
+	u32 l;
 
-	if (bank) {
-		omap_writel(
-			omap_readl(OMAP_IH2_BASE + BANK_OFFSET(bank) + IRQ_MIR)
-			| (1 << IRQ_BIT(irq)),
-			OMAP_IH2_BASE + BANK_OFFSET(bank) + IRQ_MIR);
-	} else {
-		omap_writel(
-			omap_readl(OMAP_IH1_BASE + IRQ_MIR)
-			| (1 << IRQ_BIT(irq)),
-			OMAP_IH1_BASE  + IRQ_MIR);
-	}
+	l = omap_readl(irq_banks[bank].base_reg + IRQ_MIR);
+	l |= 1 << IRQ_BIT(irq);
+	omap_writel(l, irq_banks[bank].base_reg + IRQ_MIR);
 }
 
-/*
- * Unmask routine for chips with register offsets of 0x100
- */
-static void omap_offset_unmask_irq(unsigned int irq)
+static void omap_unmask_irq(unsigned int irq)
 {
-	int bank = IRQ_TO_BANK(irq);
-
-	if (bank) {
-		omap_writel(
-			omap_readl(OMAP_IH2_BASE + BANK_OFFSET(bank) + IRQ_MIR)
-			& ~(1 << IRQ_BIT(irq)),
-			OMAP_IH2_BASE + BANK_OFFSET(bank) + IRQ_MIR);
-	} else {
-		omap_writel(
-			omap_readl(OMAP_IH1_BASE + IRQ_MIR)
-			& ~(1 << IRQ_BIT(irq)),
-			OMAP_IH1_BASE  + IRQ_MIR);
-	}
-}
+	int bank = IRQ_BANK(irq);
+	u32 l;
 
-static void omap_offset_mask_ack_irq(unsigned int irq)
-{
-	omap_offset_mask_irq(irq);
-	omap_offset_ack_irq(irq);
+	l = omap_readl(irq_banks[bank].base_reg + IRQ_MIR);
+	l &= ~(1 << IRQ_BIT(irq));
+	omap_writel(l, irq_banks[bank].base_reg + IRQ_MIR);
 }
 
-/*
- * Given the irq number returns the bank number
- */
-signed int irq_get_bank(unsigned int irq)
-{
-	int i;
-
-	for (i = 0; i < banks; i++) {
-		if (irq >= irq_banks[i].start_irq
-		    && irq <= irq_banks[i].start_irq + BANK_NR_IRQS) {
-			return i;
-		}
-	}
-
-	printk(KERN_ERR "No irq handler found for irq %i\n", irq);
-
-	return -ENODEV;
-}
-
-/*
- * Given the bank and irq number returns the irq bit at the bank register
- */
-signed int irq_bank_get_bit(int bank, unsigned int irq)
+static void omap_mask_ack_irq(unsigned int irq)
 {
-	if (irq_banks[bank].start_irq > irq) {
-		printk(KERN_ERR "Incorrect irq %i: bank %i offset %i\n",
-		       irq, bank, irq_banks[bank].start_irq);
-		return -ENODEV;
-	}
-
-	return irq - irq_banks[bank].start_irq;
+	omap_mask_irq(irq);
+	omap_ack_irq(irq);
 }
 
 /*
@@ -161,114 +112,98 @@ signed int irq_bank_get_bit(int bank, unsigned int irq)
  *	 mailing list threads on FIQ handlers if you are planning to
  *	 add a FIQ handler for OMAP.
  */
-void omap_irq_set_cfg(int irq, int fiq, int priority, int irq_level)
+static void omap_irq_set_cfg(int irq, int fiq, int priority, int trigger)
 {
 	signed int bank;
-	unsigned int irq_bit;
 	unsigned long val, offset;
 
-
-	bank = irq_get_bank(irq);
-
-	if (bank < 0)
-		return;
-
-	irq_bit = irq_bank_get_bit(bank, irq);
-
-	if (irq_bit < 0)
-		return;
-
-	/* FIQ is only availabe on bank 0 interrupts */
+	bank = IRQ_BANK(irq);
+	/* FIQ is only available on bank 0 interrupts */
 	fiq = bank ? 0 : (fiq & 0x1);
-
-	val = fiq | ((priority & 0x1f) << 2) | ((irq_level & 0x1) << 1);
-
-	offset = IRQ_ILR0 + irq_bit * 0x4;
-
+	val = fiq | ((priority & 0x1f) << 2) | ((trigger & 0x1) << 1);
+	offset = IRQ_ILR0 + IRQ_BIT(irq) * 0x4;
 	irq_bank_writel(val, bank, offset);
 }
 
-static struct omap_irq_desc *irq_bank_desc[] __initdata = {
-	&omap730_bank0_irqs,
-	&omap730_bank1_irqs,
-	&omap730_bank2_irqs,
-	&omap1510_bank0_irqs,
-	&omap1510_bank1_irqs,
-	&omap1610_bank0_irqs,
-	&omap1610_bank1_irqs,
-	&omap1610_bank2_irqs,
-	&omap1610_bank3_irqs,
-	NULL,
+#ifdef CONFIG_ARCH_OMAP730
+static struct omap_irq_bank omap730_irq_banks[] = {
+	{ .base_reg = OMAP_IH1_BASE, 		.trigger_map = 0xb3f8e22f },
+	{ .base_reg = OMAP_IH2_BASE, 		.trigger_map = 0xfdb9c1f2 },
+	{ .base_reg = OMAP_IH2_BASE + 0x100,	.trigger_map = 0x800040f3 },
+};
+#endif
+
+#ifdef CONFIG_ARCH_OMAP1510
+static struct omap_irq_bank omap1510_irq_banks[] = {
+	{ .base_reg = OMAP_IH1_BASE, 		.trigger_map = 0xb3febfff },
+	{ .base_reg = OMAP_IH2_BASE, 		.trigger_map = 0xffbfffed },
+};
+#endif
+
+#if defined(CONFIG_ARCH_OMAP1610) || defined(CONFIG_ARCH_OMAP5912)
+static struct omap_irq_bank omap1610_irq_banks[] = {
+	{ .base_reg = OMAP_IH1_BASE, 		.trigger_map = 0xb3fefe8f },
+	{ .base_reg = OMAP_IH2_BASE, 		.trigger_map = 0xfffff7ff },
+	{ .base_reg = OMAP_IH2_BASE + 0x100,	.trigger_map = 0xfffff7ff },
+	{ .base_reg = OMAP_IH2_BASE + 0x200,	.trigger_map = 0xffffffff },
+};
+#endif
+
+static struct irqchip omap_irq_chip = {
+	.ack    = omap_mask_ack_irq,
+	.mask   = omap_mask_irq,
+	.unmask = omap_unmask_irq,
 };
 
 void __init omap_init_irq(void)
 {
-	int i,j, board_irq_type = 0, interrupts = 0;
-	struct omap_irq_desc *entry;
+	int i, j;
 
+#ifdef CONFIG_ARCH_OMAP730
 	if (cpu_is_omap730()) {
-		board_irq_type = OMAP_IRQ_TYPE730;
-	} else if (cpu_is_omap1510()) {
-		board_irq_type = OMAP_IRQ_TYPE1510;
-	} else if (cpu_is_omap1610() || cpu_is_omap5912()) {
-		board_irq_type = OMAP_IRQ_TYPE1610;
-	}
-
-	if (board_irq_type == 0) {
-		printk("Could not detect OMAP type\n");
-		return;
+		irq_banks = omap730_irq_banks;
+		irq_bank_count = ARRAY_SIZE(omap730_irq_banks);
 	}
-
-	/* Scan through the interrupt bank maps and copy the right data */
-	for (i = 0; (entry = irq_bank_desc[i]) != NULL; i++) {
-		if (entry->cpu_type == board_irq_type) {
-			printk("Type %i IRQs from %3i to %3i base at 0x%lx\n",
-			       board_irq_type, entry->start_irq,
-			       entry->start_irq + BANK_NR_IRQS, entry->base_reg);
-
-			irq_banks[banks].start_irq = entry->start_irq;
-			irq_banks[banks].level_map = entry->level_map;
-			irq_banks[banks].base_reg = entry->base_reg;
-			irq_banks[banks].mask_reg = entry->mask_reg;
-			irq_banks[banks].ack_reg = entry->ack_reg;
-			irq_banks[banks].handler = entry->handler;
-
-			interrupts += BANK_NR_IRQS;
-			banks++;
+#endif
+#ifdef CONFIG_ARCH_OMAP1510
+	if (cpu_is_omap1510()) {
+		irq_banks = omap1510_irq_banks;
+		irq_bank_count = ARRAY_SIZE(omap1510_irq_banks);
 	}
+#endif
+#if defined(CONFIG_ARCH_OMAP1610) || defined(CONFIG_ARCH_OMAP5912)
+	if (cpu_is_omap1610() || cpu_is_omap5912()) {
+		irq_banks = omap1610_irq_banks;
+		irq_bank_count = ARRAY_SIZE(omap1610_irq_banks);
 	}
-
-	printk("Found total of %i interrupts in %i interrupt banks\n",
-	       interrupts, banks);
+#endif
+	printk("Total of %i interrupts in %i interrupt banks\n",
+	       irq_bank_count * 32, irq_bank_count);
 
 	/* Mask and clear all interrupts */
-	for (i = 0; i < banks; i++) {
+	for (i = 0; i < irq_bank_count; i++) {
 		irq_bank_writel(~0x0, i, IRQ_MIR);
 		irq_bank_writel(0x0, i, IRQ_ITR);
 	}
 
-	/*
-	 * Clear any pending interrupts
-	 */
-	irq_bank_writel(3, 0, IRQ_CONTROL_REG);
-	irq_bank_writel(3, 1, IRQ_CONTROL_REG);
+	/* Clear any pending interrupts */
+	irq_bank_writel(0x03, 0, IRQ_CONTROL_REG);
+	irq_bank_writel(0x03, 1, IRQ_CONTROL_REG);
 
 	/* Install the interrupt handlers for each bank */
-	for (i = 0; i < banks; i++) {
-		for (j = irq_banks[i].start_irq;
-		     j <= irq_banks[i].start_irq + BANK_NR_IRQS; j++) {
-			int irq_level;
-			set_irq_chip(j, irq_banks[i].handler);
+	for (i = 0; i < irq_bank_count; i++) {
+		for (j = i * 32; j < (i + 1) * 32; j++) {
+			int irq_trigger;
+
+			irq_trigger = irq_banks[i].trigger_map >> IRQ_BIT(j);
+			omap_irq_set_cfg(j, 0, 0, irq_trigger);
+
+			set_irq_chip(j, &omap_irq_chip);
 			set_irq_handler(j, do_level_IRQ);
 			set_irq_flags(j, IRQF_VALID);
-			irq_level = irq_banks[i].level_map
-				>> (j - irq_banks[i].start_irq) & 1;
-			omap_irq_set_cfg(j, 0, 0, irq_level);
 		}
 	}
 
 	/* Unmask level 2 handler */
-	omap_writel(0, irq_banks[0].mask_reg);
+	omap_unmask_irq(INT_IH2_IRQ);
 }
-
-EXPORT_SYMBOL(omap_irq_set_cfg);

arch/arm/mach-omap/irq.h

-/*
- * linux/arch/arm/mach-omap/irq.h
- *
- * OMAP specific interrupt bank definitions
- *
- * Copyright (C) 2004 Nokia Corporation
- * Written by Tony Lindgren <tony@atomide.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
- * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * You should have received a copy of the  GNU General Public License along
- * with this program; if not, write  to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#define OMAP_IRQ_TYPE710	1
-#define OMAP_IRQ_TYPE730	2
-#define OMAP_IRQ_TYPE1510	3
-#define OMAP_IRQ_TYPE1610	4
-#define OMAP_IRQ_TYPE1710	5
-
-#define MAX_NR_IRQ_BANKS	4
-
-#define BANK_NR_IRQS		32
-
-struct omap_irq_desc {
-	unsigned int   	cpu_type;
-	unsigned int	start_irq;
-	unsigned long	level_map;
-	unsigned long	base_reg;
-	unsigned long	mask_reg;
-	unsigned long	ack_reg;
-	struct irqchip	*handler;
-};
-
-struct omap_irq_bank {
-	unsigned int	start_irq;
-	unsigned long	level_map;
-	unsigned long	base_reg;
-	unsigned long	mask_reg;
-	unsigned long	ack_reg;
-	struct irqchip	*handler;
-};
-
-static void omap_offset_ack_irq(unsigned int irq);
-static void omap_offset_mask_irq(unsigned int irq);
-static void omap_offset_unmask_irq(unsigned int irq);
-static void omap_offset_mask_ack_irq(unsigned int irq);
-
-/* NOTE: These will not work if irq bank offset != 0x100 */
-#define IRQ_TO_BANK(irq)	(irq >> 5)
-#define IRQ_BIT(irq)		(irq & 0x1f)
-#define BANK_OFFSET(bank)	((bank - 1) * 0x100)
-
-static struct irqchip omap_offset_irq = {
-	.ack	=  omap_offset_mask_ack_irq,
-	.mask	=  omap_offset_mask_irq,
-	.unmask	=  omap_offset_unmask_irq,
-};
-
-/*
- * OMAP-730 interrupt banks
- */
-static struct omap_irq_desc omap730_bank0_irqs __initdata = {
-	.cpu_type	= OMAP_IRQ_TYPE730,
-	.start_irq	= 0,
-	.level_map	= 0xb3f8e22f,
-	.base_reg	= OMAP_IH1_BASE,
-	.mask_reg	= OMAP_IH1_BASE + IRQ_MIR,
-	.ack_reg	= OMAP_IH1_BASE + IRQ_CONTROL_REG,
-	.handler	= &omap_offset_irq,	/* IH2 regs at 0x100 offsets */
-};
-
-static struct omap_irq_desc omap730_bank1_irqs __initdata = {
-	.cpu_type	= OMAP_IRQ_TYPE730,
-	.start_irq	= 32,
-	.level_map	= 0xfdb9c1f2,
-	.base_reg	= OMAP_IH2_BASE,
-	.mask_reg	= OMAP_IH2_BASE + IRQ_MIR,
-	.ack_reg	= OMAP_IH2_BASE + IRQ_CONTROL_REG,
-	.handler	= &omap_offset_irq,	/* IH2 regs at 0x100 offsets */
-};
-
-static struct omap_irq_desc omap730_bank2_irqs __initdata = {
-	.cpu_type	= OMAP_IRQ_TYPE730,
-	.start_irq	= 64,
-	.level_map	= 0x800040f3,
-	.base_reg	= OMAP_IH2_BASE + 0x100,
-	.mask_reg	= OMAP_IH2_BASE + 0x100 + IRQ_MIR,
-	.ack_reg	= OMAP_IH2_BASE + IRQ_CONTROL_REG, /* Not replicated */
-	.handler	= &omap_offset_irq,	/* IH2 regs at 0x100 offsets */
-};
-
-/*
- * OMAP-1510 interrupt banks
- */
-static struct omap_irq_desc omap1510_bank0_irqs __initdata = {
-	.cpu_type	= OMAP_IRQ_TYPE1510,
-	.start_irq	= 0,
-	.level_map	= 0xb3febfff,
-	.base_reg	= OMAP_IH1_BASE,
-	.mask_reg	= OMAP_IH1_BASE + IRQ_MIR,
-	.ack_reg	= OMAP_IH1_BASE + IRQ_CONTROL_REG,
-	.handler	= &omap_offset_irq,	/* IH2 regs at 0x100 offsets */
-};
-
-static struct omap_irq_desc omap1510_bank1_irqs __initdata = {
-	.cpu_type	= OMAP_IRQ_TYPE1510,
-	.start_irq	= 32,
-	.level_map	= 0xffbfffed,
-	.base_reg	= OMAP_IH2_BASE,
-	.mask_reg	= OMAP_IH2_BASE + IRQ_MIR,
-	.ack_reg	= OMAP_IH2_BASE + IRQ_CONTROL_REG,
-	.handler	= &omap_offset_irq,	/* IH2 regs at 0x100 offsets */
-};
-
-/*
- * OMAP-1610 interrupt banks
- */
-static struct omap_irq_desc omap1610_bank0_irqs __initdata = {
-	.cpu_type	= OMAP_IRQ_TYPE1610,
-	.start_irq	= 0,
-	.level_map	= 0xb3fefe8f,
-	.base_reg	= OMAP_IH1_BASE,
-	.mask_reg	= OMAP_IH1_BASE + IRQ_MIR,
-	.ack_reg	= OMAP_IH1_BASE + IRQ_CONTROL_REG,
-	.handler	= &omap_offset_irq,	/* IH2 regs at 0x100 offsets */
-};
-
-static struct omap_irq_desc omap1610_bank1_irqs __initdata = {
-	.cpu_type	= OMAP_IRQ_TYPE1610,
-	.start_irq	= 32,
-	.level_map	= 0xfffff7ff,
-	.base_reg	= OMAP_IH2_BASE,
-	.mask_reg	= OMAP_IH2_BASE + IRQ_MIR,
-	.ack_reg	= OMAP_IH2_BASE + IRQ_CONTROL_REG,
-	.handler	= &omap_offset_irq,	/* IH2 regs at 0x100 offsets */
-};
-
-static struct omap_irq_desc omap1610_bank2_irqs __initdata = {
-	.cpu_type	= OMAP_IRQ_TYPE1610,
-	.start_irq	= 64,
-	.level_map	= 0xffffffff,
-	.base_reg	= OMAP_IH2_BASE + 0x100,
-	.mask_reg	= OMAP_IH2_BASE + 0x100 + IRQ_MIR,
-	.ack_reg	= OMAP_IH2_BASE + IRQ_CONTROL_REG, /* Not replicated */
-	.handler	= &omap_offset_irq,	/* IH2 regs at 0x100 offsets */
-};
-
-static struct omap_irq_desc omap1610_bank3_irqs __initdata = {
-	.cpu_type	= OMAP_IRQ_TYPE1610,
-	.start_irq	= 96,
-	.level_map	= 0xffffffff,
-	.base_reg	= OMAP_IH2_BASE + 0x200,
-	.mask_reg	= OMAP_IH2_BASE + 0x200 + IRQ_MIR,
-	.ack_reg	= OMAP_IH2_BASE + IRQ_CONTROL_REG, /* Not replicated */
-	.handler	= &omap_offset_irq,	/* IH2 regs at 0x100 offsets */
-};

arch/arm/mach-omap/leds-perseus2.c

@@ -96,7 +96,7 @@ void perseus2_leds_event(led_event_t evt)
 	/*
 	 *  Actually burn the LEDs
 	 */
-	omap_writew(~hw_led_state & 0xffff, OMAP730_FPGA_LEDS);
+	__raw_writew(~hw_led_state & 0xffff, OMAP730_FPGA_LEDS);
 
 	local_irq_restore(flags);
 }