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ARM: DaVinci: Update IO address pointer typechecking 

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
This commit is contained in:
Kevin Hilman 2008-09-15 04:09:14 -07:00
parent 45e9c0de2e
commit ac7643e4d3
2 changed files with 14 additions and 31 deletions
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2
arch/arm/mach-davinci/board-evm.c
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@ -124,7 +124,7 @@ static __init void davinci_evm_irq_init(void)
MACHINE_START(DAVINCI_EVM, "DaVinci EVM")
/* Maintainer: MontaVista Software <source@mvista.com> */
.phys_io = IO_PHYS,
.io_pg_offst = (io_p2v(IO_PHYS) >> 18) & 0xfffc,
.io_pg_offst = (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc,
.boot_params = (DAVINCI_DDR_BASE + 0x100),
.map_io = davinci_evm_map_io,
.init_irq = davinci_evm_irq_init,

43
arch/arm/mach-davinci/include/mach/io.h
View File

@ -22,9 +22,8 @@
#define IO_OFFSET 0xfd000000 /* Virtual IO = 0xfec00000 */
#define IO_SIZE 0x00400000
#define IO_VIRT (IO_PHYS + IO_OFFSET)
#define io_p2v(pa) ((pa) + IO_OFFSET)
#define io_v2p(va) ((va) - IO_OFFSET)
#define IO_ADDRESS(x) io_p2v(x)
#define __IO_ADDRESS(x) ((x) + IO_OFFSET)
/*
* We don't actually have real ISA nor PCI buses, but there is so many
@ -35,7 +34,12 @@
#define __mem_pci(a) (a)
#define __mem_isa(a) (a)
#ifndef __ASSEMBLER__
#define IO_ADDRESS(pa) IOMEM(__IO_ADDRESS(pa))
#ifdef __ASSEMBLER__
#define IOMEM(x) x
#else
#define IOMEM(x) ((void __force __iomem *)(x))
/*
* Functions to access the DaVinci IO region
@ -46,34 +50,13 @@
* - DO NOT use hardcoded virtual addresses to allow changing the
* IO address space again if needed
*/
#define davinci_readb(a) (*(volatile unsigned char *)IO_ADDRESS(a))
#define davinci_readw(a) (*(volatile unsigned short *)IO_ADDRESS(a))
#define davinci_readl(a) (*(volatile unsigned int *)IO_ADDRESS(a))
#define davinci_readb(a) __raw_readb(IO_ADDRESS(a))
#define davinci_readw(a) __raw_readw(IO_ADDRESS(a))
#define davinci_readl(a) __raw_readl(IO_ADDRESS(a))
#define davinci_writeb(v,a) (*(volatile unsigned char *)IO_ADDRESS(a) = (v))
#define davinci_writew(v,a) (*(volatile unsigned short *)IO_ADDRESS(a) = (v))
#define davinci_writel(v,a) (*(volatile unsigned int *)IO_ADDRESS(a) = (v))
/* 16 bit uses LDRH/STRH, base +/- offset_8 */
typedef struct { volatile u16 offset[256]; } __regbase16;
#define __REGV16(vaddr) ((__regbase16 *)((vaddr)&~0xff)) \
->offset[((vaddr)&0xff)>>1]
#define __REG16(paddr) __REGV16(io_p2v(paddr))
/* 8/32 bit uses LDR/STR, base +/- offset_12 */
typedef struct { volatile u8 offset[4096]; } __regbase8;
#define __REGV8(vaddr) ((__regbase8 *)((vaddr)&~4095)) \
->offset[((vaddr)&4095)>>0]
#define __REG8(paddr) __REGV8(io_p2v(paddr))
typedef struct { volatile u32 offset[4096]; } __regbase32;
#define __REGV32(vaddr) ((__regbase32 *)((vaddr)&~4095)) \
->offset[((vaddr)&4095)>>2]
#define __REG(paddr) __REGV32(io_p2v(paddr))
#else
#define __REG(x) (*((volatile unsigned long *)io_p2v(x)))
#define davinci_writeb(v, a) __raw_writeb(v, IO_ADDRESS(a))
#define davinci_writew(v, a) __raw_writew(v, IO_ADDRESS(a))
#define davinci_writel(v, a) __raw_writel(v, IO_ADDRESS(a))
#endif /* __ASSEMBLER__ */
#endif /* __ASM_ARCH_IO_H */