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From: Florian Fainelli <florian@openwrt.org>
Date: 	Fri, 22 Aug 2008 17:01:03 +0200
Subject: [PATCH 2/5] rb532: use physical addresses for gpio and device controller registers
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X-OriginalArrivalTime: 22 Aug 2008 15:02:27.0454 (UTC) FILETIME=[178609E0:01C90468]

This patch fixes the misuse of virtual addresses for the GPIO and third
device controller which would lead to problems while accessing ioremap'd
registers.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
---
diff --git a/arch/mips/rb532/gpio.c b/arch/mips/rb532/gpio.c
index 00a1c78..0628d8d 100644
--- a/arch/mips/rb532/gpio.c
+++ b/arch/mips/rb532/gpio.c
@@ -47,8 +47,8 @@ struct mpmc_device dev3;
 static struct resource rb532_gpio_reg0_res[] = {
 	{
 		.name 	= "gpio_reg0",
-		.start 	= (u32)(IDT434_REG_BASE + GPIOBASE),
-		.end 	= (u32)(IDT434_REG_BASE + GPIOBASE + sizeof(struct rb532_gpio_reg)),
+		.start 	= REGBASE + GPIOBASE,
+		.end 	= REGBASE + GPIOBASE + sizeof(struct rb532_gpio_reg) -1,
 		.flags 	= IORESOURCE_MEM,
 	}
 };
@@ -56,8 +56,8 @@ static struct resource rb532_gpio_reg0_res[] = {
 static struct resource rb532_dev3_ctl_res[] = {
 	{
 		.name	= "dev3_ctl",
-		.start	= (u32)(IDT434_REG_BASE + DEV3BASE),
-		.end	= (u32)(IDT434_REG_BASE + DEV3BASE + sizeof(struct dev_reg)),
+		.start	= REGBASE + DEV3BASE,
+		.end	= REGBASE + DEV3BASE + sizeof(struct dev_reg) -1,
 		.flags	= IORESOURCE_MEM,
 	}
 };
diff --git a/include/asm-mips/mach-rc32434/rb.h b/include/asm-mips/mach-rc32434/rb.h
index e0a76e3..62ac73c 100644
--- a/include/asm-mips/mach-rc32434/rb.h
+++ b/include/asm-mips/mach-rc32434/rb.h
@@ -17,7 +17,8 @@
 
 #include <linux/genhd.h>
 
-#define IDT434_REG_BASE	((volatile void *) KSEG1ADDR(0x18000000))
+#define REGBASE		0x18000000
+#define IDT434_REG_BASE	((volatile void *) KSEG1ADDR(REGBASE))
 #define DEV0BASE	0x010000
 #define DEV0MASK	0x010004
 #define DEV0C		0x010008

