From 97b09da4ee36ec4bd0f6e16b84b4bb6fa05db110 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Sat, 1 Oct 2011 22:03:45 +0200 Subject: ARM: pxa: use correct __iomem annotations This tries to clear up the confusion between integers and iomem pointers in the marvell pxa platform. MMIO addresses are supposed to be __iomem* values, in order to let the Linux type checking work correctly. This patch moves the cast to __iomem as far back as possible, to the place where the MMIO virtual address windows are defined. Signed-off-by: Arnd Bergmann Signed-off-by: Eric Miao --- arch/arm/mach-pxa/include/mach/hardware.h | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'arch/arm/mach-pxa/include/mach/hardware.h') diff --git a/arch/arm/mach-pxa/include/mach/hardware.h b/arch/arm/mach-pxa/include/mach/hardware.h index de63ca3016b4..8184669dde28 100644 --- a/arch/arm/mach-pxa/include/mach/hardware.h +++ b/arch/arm/mach-pxa/include/mach/hardware.h @@ -36,22 +36,23 @@ * Note that not all PXA2xx chips implement all those addresses, and the * kernel only maps the minimum needed range of this mapping. */ -#define io_p2v(x) (0xf2000000 + ((x) & 0x01ffffff) + (((x) & 0x1c000000) >> 1)) #define io_v2p(x) (0x3c000000 + ((x) & 0x01ffffff) + (((x) & 0x0e000000) << 1)) +#define io_p2v(x) IOMEM(0xf2000000 + ((x) & 0x01ffffff) + (((x) & 0x1c000000) >> 1)) #ifndef __ASSEMBLY__ - -# define __REG(x) (*((volatile u32 *)io_p2v(x))) +# define IOMEM(x) ((void __iomem *)(x)) +# define __REG(x) (*((volatile u32 __iomem *)io_p2v(x))) /* With indexed regs we don't want to feed the index through io_p2v() especially if it is a variable, otherwise horrible code will result. */ # define __REG2(x,y) \ - (*(volatile u32 *)((u32)&__REG(x) + (y))) + (*(volatile u32 __iomem*)((u32)&__REG(x) + (y))) # define __PREG(x) (io_v2p((u32)&(x))) #else +# define IOMEM(x) x # define __REG(x) io_p2v(x) # define __PREG(x) io_v2p(x) -- cgit v1.2.3