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
15 #include <asm/hardware.h>
17 #define IO_SPACE_LIMIT 0xffffffff
19 #define __io(a) ((void __iomem *)(PCIO_BASE + (a)))
20 #define __mem_pci(a) (a)
22 #define PCIO_BASE 0
24 #ifndef __ASSEMBLER__
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))
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))
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))
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))
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))
46 #else
48 #define __REG8(paddr) io_p2v(paddr)
49 #define __REG16(paddr) io_p2v(paddr)
50 #define __REG32(paddr) io_p2v(paddr)
52 #endif
54 #endif