Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * linux/include/asm-arm/arch-shark/io.h |
| 3 | * |
| 4 | * by Alexander Schulz |
| 5 | * |
| 6 | * derived from: |
| 7 | * linux/include/asm-arm/arch-ebsa110/io.h |
| 8 | * Copyright (C) 1997,1998 Russell King |
| 9 | */ |
| 10 | |
| 11 | #ifndef __ASM_ARM_ARCH_IO_H |
| 12 | #define __ASM_ARM_ARCH_IO_H |
| 13 | |
Russell King | 7fca0aa | 2005-10-28 10:20:25 +0100 | [diff] [blame] | 14 | #include <asm/hardware.h> |
| 15 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 16 | #define IO_SPACE_LIMIT 0xffffffff |
| 17 | |
| 18 | /* |
| 19 | * We use two different types of addressing - PC style addresses, and ARM |
| 20 | * addresses. PC style accesses the PC hardware with the normal PC IO |
| 21 | * addresses, eg 0x3f8 for serial#1. ARM addresses are 0x80000000+ |
| 22 | * and are translated to the start of IO. |
| 23 | */ |
| 24 | #define __PORT_PCIO(x) (!((x) & 0x80000000)) |
| 25 | |
Alexander Schulz | b752341 | 2005-07-16 17:17:18 +0100 | [diff] [blame] | 26 | #define __io(a) ((void __iomem *)(PCIO_BASE + (a))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 27 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | |
| 29 | static inline unsigned int __ioaddr (unsigned int port) \ |
| 30 | { \ |
| 31 | if (__PORT_PCIO(port)) \ |
| 32 | return (unsigned int)(PCIO_BASE + (port)); \ |
| 33 | else \ |
| 34 | return (unsigned int)(IO_BASE + (port)); \ |
| 35 | } |
| 36 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 37 | #define __mem_pci(addr) (addr) |
| 38 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 39 | /* |
| 40 | * Translated address IO functions |
| 41 | * |
| 42 | * IO address has already been translated to a virtual address |
| 43 | */ |
| 44 | #define outb_t(v,p) \ |
| 45 | (*(volatile unsigned char *)(p) = (v)) |
| 46 | |
| 47 | #define inb_t(p) \ |
| 48 | (*(volatile unsigned char *)(p)) |
| 49 | |
| 50 | #define outl_t(v,p) \ |
| 51 | (*(volatile unsigned long *)(p) = (v)) |
| 52 | |
| 53 | #define inl_t(p) \ |
| 54 | (*(volatile unsigned long *)(p)) |
| 55 | |
| 56 | #endif |