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authorHartley Sweeten <hartleys@visionengravers.com>2009-06-26 21:36:36 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2009-06-27 10:41:12 +0100
commit702b59e623c3ca80beaeab79ca5ede4ea23170e2 (patch)
treefc417ef59f27909acbb3df82958425ee6486a925
parent28d0325ce6e0a52f53d8af687e6427fee59004d3 (diff)
downloadop-kernel-dev-702b59e623c3ca80beaeab79ca5ede4ea23170e2.zip
op-kernel-dev-702b59e623c3ca80beaeab79ca5ede4ea23170e2.tar.gz
[ARM] 5573/1: ep93xx: ensure typesafe io
ARM: ep93xx: ensure typesafe io For the ep93xx platform, all EP93XX_*_BASE defines are based on virtual addresses. Ensure that all these defines are properly typesafe for the __raw_{read/write}* macros. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Acked-by: Ryan Mallon <ryan@bluewatersys.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
-rw-r--r--arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h61
-rw-r--r--arch/arm/mach-ep93xx/include/mach/io.h17
2 files changed, 47 insertions, 31 deletions
diff --git a/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h b/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h
index 967c079..49b256b 100644
--- a/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h
+++ b/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h
@@ -52,40 +52,43 @@
#define EP93XX_AHB_VIRT_BASE 0xfef00000
#define EP93XX_AHB_SIZE 0x00100000
+#define EP93XX_AHB_IOMEM(x) IOMEM(EP93XX_AHB_VIRT_BASE + (x))
+
#define EP93XX_APB_PHYS_BASE 0x80800000
#define EP93XX_APB_VIRT_BASE 0xfed00000
#define EP93XX_APB_SIZE 0x00200000
+#define EP93XX_APB_IOMEM(x) IOMEM(EP93XX_APB_VIRT_BASE + (x))
+
/* AHB peripherals */
-#define EP93XX_DMA_BASE ((void __iomem *) \
- (EP93XX_AHB_VIRT_BASE + 0x00000000))
+#define EP93XX_DMA_BASE EP93XX_AHB_IOMEM(0x00000000)
-#define EP93XX_ETHERNET_BASE (EP93XX_AHB_VIRT_BASE + 0x00010000)
#define EP93XX_ETHERNET_PHYS_BASE (EP93XX_AHB_PHYS_BASE + 0x00010000)
+#define EP93XX_ETHERNET_BASE EP93XX_AHB_IOMEM(0x00010000)
-#define EP93XX_USB_BASE (EP93XX_AHB_VIRT_BASE + 0x00020000)
#define EP93XX_USB_PHYS_BASE (EP93XX_AHB_PHYS_BASE + 0x00020000)
+#define EP93XX_USB_BASE EP93XX_AHB_IOMEM(0x00020000)
-#define EP93XX_RASTER_BASE (EP93XX_AHB_VIRT_BASE + 0x00030000)
+#define EP93XX_RASTER_BASE EP93XX_AHB_IOMEM(0x00030000)
-#define EP93XX_GRAPHICS_ACCEL_BASE (EP93XX_AHB_VIRT_BASE + 0x00040000)
+#define EP93XX_GRAPHICS_ACCEL_BASE EP93XX_AHB_IOMEM(0x00040000)
-#define EP93XX_SDRAM_CONTROLLER_BASE (EP93XX_AHB_VIRT_BASE + 0x00060000)
+#define EP93XX_SDRAM_CONTROLLER_BASE EP93XX_AHB_IOMEM(0x00060000)
-#define EP93XX_PCMCIA_CONTROLLER_BASE (EP93XX_AHB_VIRT_BASE + 0x00080000)
+#define EP93XX_PCMCIA_CONTROLLER_BASE EP93XX_AHB_IOMEM(0x00080000)
-#define EP93XX_BOOT_ROM_BASE (EP93XX_AHB_VIRT_BASE + 0x00090000)
+#define EP93XX_BOOT_ROM_BASE EP93XX_AHB_IOMEM(0x00090000)
-#define EP93XX_IDE_BASE (EP93XX_AHB_VIRT_BASE + 0x000a0000)
+#define EP93XX_IDE_BASE EP93XX_AHB_IOMEM(0x000a0000)
-#define EP93XX_VIC1_BASE (EP93XX_AHB_VIRT_BASE + 0x000b0000)
+#define EP93XX_VIC1_BASE EP93XX_AHB_IOMEM(0x000b0000)
-#define EP93XX_VIC2_BASE (EP93XX_AHB_VIRT_BASE + 0x000c0000)
+#define EP93XX_VIC2_BASE EP93XX_AHB_IOMEM(0x000c0000)
/* APB peripherals */
-#define EP93XX_TIMER_BASE (EP93XX_APB_VIRT_BASE + 0x00010000)
+#define EP93XX_TIMER_BASE EP93XX_APB_IOMEM(0x00010000)
#define EP93XX_TIMER_REG(x) (EP93XX_TIMER_BASE + (x))
#define EP93XX_TIMER1_LOAD EP93XX_TIMER_REG(0x00)
#define EP93XX_TIMER1_VALUE EP93XX_TIMER_REG(0x04)
@@ -102,11 +105,11 @@
#define EP93XX_TIMER3_CONTROL EP93XX_TIMER_REG(0x88)
#define EP93XX_TIMER3_CLEAR EP93XX_TIMER_REG(0x8c)
-#define EP93XX_I2S_BASE (EP93XX_APB_VIRT_BASE + 0x00020000)
+#define EP93XX_I2S_BASE EP93XX_APB_IOMEM(0x00020000)
-#define EP93XX_SECURITY_BASE (EP93XX_APB_VIRT_BASE + 0x00030000)
+#define EP93XX_SECURITY_BASE EP93XX_APB_IOMEM(0x00030000)
-#define EP93XX_GPIO_BASE (EP93XX_APB_VIRT_BASE + 0x00040000)
+#define EP93XX_GPIO_BASE EP93XX_APB_IOMEM(0x00040000)
#define EP93XX_GPIO_REG(x) (EP93XX_GPIO_BASE + (x))
#define EP93XX_GPIO_F_INT_TYPE1 EP93XX_GPIO_REG(0x4c)
#define EP93XX_GPIO_F_INT_TYPE2 EP93XX_GPIO_REG(0x50)
@@ -124,32 +127,32 @@
#define EP93XX_GPIO_B_INT_ENABLE EP93XX_GPIO_REG(0xb8)
#define EP93XX_GPIO_B_INT_STATUS EP93XX_GPIO_REG(0xbc)
-#define EP93XX_AAC_BASE (EP93XX_APB_VIRT_BASE + 0x00080000)
+#define EP93XX_AAC_BASE EP93XX_APB_IOMEM(0x00080000)
-#define EP93XX_SPI_BASE (EP93XX_APB_VIRT_BASE + 0x000a0000)
+#define EP93XX_SPI_BASE EP93XX_APB_IOMEM(0x000a0000)
-#define EP93XX_IRDA_BASE (EP93XX_APB_VIRT_BASE + 0x000b0000)
+#define EP93XX_IRDA_BASE EP93XX_APB_IOMEM(0x000b0000)
-#define EP93XX_UART1_BASE (EP93XX_APB_VIRT_BASE + 0x000c0000)
#define EP93XX_UART1_PHYS_BASE (EP93XX_APB_PHYS_BASE + 0x000c0000)
+#define EP93XX_UART1_BASE EP93XX_APB_IOMEM(0x000c0000)
-#define EP93XX_UART2_BASE (EP93XX_APB_VIRT_BASE + 0x000d0000)
#define EP93XX_UART2_PHYS_BASE (EP93XX_APB_PHYS_BASE + 0x000d0000)
+#define EP93XX_UART2_BASE EP93XX_APB_IOMEM(0x000d0000)
-#define EP93XX_UART3_BASE (EP93XX_APB_VIRT_BASE + 0x000e0000)
#define EP93XX_UART3_PHYS_BASE (EP93XX_APB_PHYS_BASE + 0x000e0000)
+#define EP93XX_UART3_BASE EP93XX_APB_IOMEM(0x000e0000)
-#define EP93XX_KEY_MATRIX_BASE (EP93XX_APB_VIRT_BASE + 0x000f0000)
+#define EP93XX_KEY_MATRIX_BASE EP93XX_APB_IOMEM(0x000f0000)
-#define EP93XX_ADC_BASE (EP93XX_APB_VIRT_BASE + 0x00100000)
-#define EP93XX_TOUCHSCREEN_BASE (EP93XX_APB_VIRT_BASE + 0x00100000)
+#define EP93XX_ADC_BASE EP93XX_APB_IOMEM(0x00100000)
+#define EP93XX_TOUCHSCREEN_BASE EP93XX_APB_IOMEM(0x00100000)
-#define EP93XX_PWM_BASE (EP93XX_APB_VIRT_BASE + 0x00110000)
+#define EP93XX_PWM_BASE EP93XX_APB_IOMEM(0x00110000)
-#define EP93XX_RTC_BASE (EP93XX_APB_VIRT_BASE + 0x00120000)
#define EP93XX_RTC_PHYS_BASE (EP93XX_APB_PHYS_BASE + 0x00120000)
+#define EP93XX_RTC_BASE EP93XX_APB_IOMEM(0x00120000)
-#define EP93XX_SYSCON_BASE (EP93XX_APB_VIRT_BASE + 0x00130000)
+#define EP93XX_SYSCON_BASE EP93XX_APB_IOMEM(0x00130000)
#define EP93XX_SYSCON_REG(x) (EP93XX_SYSCON_BASE + (x))
#define EP93XX_SYSCON_POWER_STATE EP93XX_SYSCON_REG(0x00)
#define EP93XX_SYSCON_PWRCNT EP93XX_SYSCON_REG(0x04)
@@ -179,7 +182,7 @@
#define EP93XX_SYSCON_DEVICE_CONFIG_U1EN (1<<18)
#define EP93XX_SYSCON_SWLOCK EP93XX_SYSCON_REG(0xc0)
-#define EP93XX_WATCHDOG_BASE (EP93XX_APB_VIRT_BASE + 0x00140000)
+#define EP93XX_WATCHDOG_BASE EP93XX_APB_IOMEM(0x00140000)
#endif
diff --git a/arch/arm/mach-ep93xx/include/mach/io.h b/arch/arm/mach-ep93xx/include/mach/io.h
index fd5f081..cebcc1c 100644
--- a/arch/arm/mach-ep93xx/include/mach/io.h
+++ b/arch/arm/mach-ep93xx/include/mach/io.h
@@ -1,8 +1,21 @@
/*
* arch/arm/mach-ep93xx/include/mach/io.h
*/
+#ifndef __ASM_MACH_IO_H
+#define __ASM_MACH_IO_H
#define IO_SPACE_LIMIT 0xffffffff
-#define __io(p) __typesafe_io(p)
-#define __mem_pci(p) (p)
+#define __io(p) __typesafe_io(p)
+#define __mem_pci(p) (p)
+
+/*
+ * A typesafe __io() variation for variable initialisers
+ */
+#ifdef __ASSEMBLER__
+#define IOMEM(p) p
+#else
+#define IOMEM(p) ((void __iomem __force *)(p))
+#endif
+
+#endif /* __ASM_MACH_IO_H */
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