Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * linux/include/asm-arm/arch-sa1100/hardware.h |
| 3 | * |
| 4 | * Copyright (C) 1998 Nicolas Pitre <nico@cam.org> |
| 5 | * |
| 6 | * This file contains the hardware definitions for SA1100 architecture |
| 7 | * |
| 8 | * 2000/05/23 John Dorsey <john+@cs.cmu.edu> |
| 9 | * Definitions for SA1111 added. |
| 10 | */ |
| 11 | |
| 12 | #ifndef __ASM_ARCH_HARDWARE_H |
| 13 | #define __ASM_ARCH_HARDWARE_H |
| 14 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 15 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 16 | #define UNCACHEABLE_ADDR 0xfa050000 |
| 17 | |
| 18 | |
| 19 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 20 | * SA1100 internal I/O mappings |
| 21 | * |
| 22 | * We have the following mapping: |
| 23 | * phys virt |
| 24 | * 80000000 f8000000 |
| 25 | * 90000000 fa000000 |
| 26 | * a0000000 fc000000 |
| 27 | * b0000000 fe000000 |
| 28 | */ |
| 29 | |
| 30 | #define VIO_BASE 0xf8000000 /* virtual start of IO space */ |
| 31 | #define VIO_SHIFT 3 /* x = IO space shrink power */ |
| 32 | #define PIO_START 0x80000000 /* physical start of IO space */ |
| 33 | |
| 34 | #define io_p2v( x ) \ |
| 35 | ( (((x)&0x00ffffff) | (((x)&0x30000000)>>VIO_SHIFT)) + VIO_BASE ) |
| 36 | #define io_v2p( x ) \ |
| 37 | ( (((x)&0x00ffffff) | (((x)&(0x30000000>>VIO_SHIFT))<<VIO_SHIFT)) + PIO_START ) |
| 38 | |
| 39 | #ifndef __ASSEMBLY__ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 40 | |
Nicolas Pitre | 61c8c15 | 2005-09-08 23:07:40 +0100 | [diff] [blame] | 41 | # define __REG(x) (*((volatile unsigned long *)io_p2v(x))) |
| 42 | # define __PREG(x) (io_v2p((unsigned long)&(x))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 43 | |
| 44 | #else |
| 45 | |
| 46 | # define __REG(x) io_p2v(x) |
| 47 | # define __PREG(x) io_v2p(x) |
| 48 | |
| 49 | #endif |
| 50 | |
| 51 | #include "SA-1100.h" |
| 52 | |
| 53 | #ifdef CONFIG_SA1101 |
| 54 | #include "SA-1101.h" |
| 55 | #endif |
| 56 | |
| 57 | #endif /* _ASM_ARCH_HARDWARE_H */ |