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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-arm/arch-sa1100/hardware.h
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/asm-arm/arch-sa1100/hardware.h')
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1 files changed, 83 insertions, 0 deletions
diff --git a/include/asm-arm/arch-sa1100/hardware.h b/include/asm-arm/arch-sa1100/hardware.h
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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
15#include <linux/config.h>
16
17/* Flushing areas */
18#define FLUSH_BASE_PHYS 0xe0000000 /* SA1100 zero bank */
19#define FLUSH_BASE 0xf5000000
20#define FLUSH_BASE_MINICACHE 0xf5800000
21#define UNCACHEABLE_ADDR 0xfa050000
22
23
24/*
25 * We requires absolute addresses i.e. (PCMCIA_IO_0_BASE + 0x3f8) for
26 * in*()/out*() macros to be usable for all cases.
27 */
28#define PCIO_BASE 0
29
30
31/*
32 * SA1100 internal I/O mappings
33 *
34 * We have the following mapping:
35 * phys virt
36 * 80000000 f8000000
37 * 90000000 fa000000
38 * a0000000 fc000000
39 * b0000000 fe000000
40 */
41
42#define VIO_BASE 0xf8000000 /* virtual start of IO space */
43#define VIO_SHIFT 3 /* x = IO space shrink power */
44#define PIO_START 0x80000000 /* physical start of IO space */
45
46#define io_p2v( x ) \
47 ( (((x)&0x00ffffff) | (((x)&0x30000000)>>VIO_SHIFT)) + VIO_BASE )
48#define io_v2p( x ) \
49 ( (((x)&0x00ffffff) | (((x)&(0x30000000>>VIO_SHIFT))<<VIO_SHIFT)) + PIO_START )
50
51#ifndef __ASSEMBLY__
52#include <asm/types.h>
53
54#if 0
55# define __REG(x) (*((volatile u32 *)io_p2v(x)))
56#else
57/*
58 * This __REG() version gives the same results as the one above, except
59 * that we are fooling gcc somehow so it generates far better and smaller
60 * assembly code for access to contigous registers. It's a shame that gcc
61 * doesn't guess this by itself.
62 */
63typedef struct { volatile u32 offset[4096]; } __regbase;
64# define __REGP(x) ((__regbase *)((x)&~4095))->offset[((x)&4095)>>2]
65# define __REG(x) __REGP(io_p2v(x))
66#endif
67
68# define __PREG(x) (io_v2p((u32)&(x)))
69
70#else
71
72# define __REG(x) io_p2v(x)
73# define __PREG(x) io_v2p(x)
74
75#endif
76
77#include "SA-1100.h"
78
79#ifdef CONFIG_SA1101
80#include "SA-1101.h"
81#endif
82
83#endif /* _ASM_ARCH_HARDWARE_H */