1 /**************************************************************************** 2 **************************************************************************** 3 *** 4 *** This header was automatically generated from a Linux kernel header 5 *** of the same name, to make information necessary for userspace to 6 *** call into the kernel available to libc. It contains only constants, 7 *** structures, and macros generated from the original header, and thus, 8 *** contains no copyrightable information. 9 *** 10 **************************************************************************** 11 ****************************************************************************/ 12 #ifndef __ASM_ARM_ARCH_IO_H 13 #define __ASM_ARM_ARCH_IO_H 14 15 #include <asm/hardware.h> 16 17 #define IO_SPACE_LIMIT 0xffffffff 18 19 #define __io(a) ((void __iomem *)(PCIO_BASE + (a))) 20 #define __mem_pci(a) (a) 21 22 #define PCIO_BASE 0 23 24 #ifndef __ASSEMBLER__ 25 26 #define omap_readb(a) (*(volatile unsigned char *)IO_ADDRESS(a)) 27 #define omap_readw(a) (*(volatile unsigned short *)IO_ADDRESS(a)) 28 #define omap_readl(a) (*(volatile unsigned int *)IO_ADDRESS(a)) 29 30 #define omap_writeb(v,a) (*(volatile unsigned char *)IO_ADDRESS(a) = (v)) 31 #define omap_writew(v,a) (*(volatile unsigned short *)IO_ADDRESS(a) = (v)) 32 #define omap_writel(v,a) (*(volatile unsigned int *)IO_ADDRESS(a) = (v)) 33 34 typedef struct { volatile u16 offset[256]; } __regbase16; 35 #define __REGV16(vaddr) ((__regbase16 *)((vaddr)&~0xff)) ->offset[((vaddr)&0xff)>>1] 36 #define __REG16(paddr) __REGV16(io_p2v(paddr)) 37 38 typedef struct { volatile u8 offset[4096]; } __regbase8; 39 #define __REGV8(vaddr) ((__regbase8 *)((vaddr)&~4095)) ->offset[((vaddr)&4095)>>0] 40 #define __REG8(paddr) __REGV8(io_p2v(paddr)) 41 42 typedef struct { volatile u32 offset[4096]; } __regbase32; 43 #define __REGV32(vaddr) ((__regbase32 *)((vaddr)&~4095)) ->offset[((vaddr)&4095)>>2] 44 #define __REG32(paddr) __REGV32(io_p2v(paddr)) 45 46 #else 47 48 #define __REG8(paddr) io_p2v(paddr) 49 #define __REG16(paddr) io_p2v(paddr) 50 #define __REG32(paddr) io_p2v(paddr) 51 52 #endif 53 54 #endif 55