1/*
2 * arch/arm/mach-sa1100/include/mach/hardware.h
3 *
4 * Copyright (C) 1998 Nicolas Pitre <nico@fluxnic.net>
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
16#define UNCACHEABLE_ADDR	0xfa050000
17
18
19/*
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   IOMEM( (((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#define CPU_SA1110_A0	(0)
40#define CPU_SA1110_B0	(4)
41#define CPU_SA1110_B1	(5)
42#define CPU_SA1110_B2	(6)
43#define CPU_SA1110_B4	(8)
44
45#define CPU_SA1100_ID	(0x4401a110)
46#define CPU_SA1100_MASK	(0xfffffff0)
47#define CPU_SA1110_ID	(0x6901b110)
48#define CPU_SA1110_MASK	(0xfffffff0)
49
50#define __MREG(x)	IOMEM(io_p2v(x))
51
52#ifndef __ASSEMBLY__
53
54#include <asm/cputype.h>
55
56#define CPU_REVISION	(read_cpuid_id() & 15)
57
58#define cpu_is_sa1100()	((read_cpuid_id() & CPU_SA1100_MASK) == CPU_SA1100_ID)
59#define cpu_is_sa1110()	((read_cpuid_id() & CPU_SA1110_MASK) == CPU_SA1110_ID)
60
61# define __REG(x)	(*((volatile unsigned long __iomem *)io_p2v(x)))
62# define __PREG(x)	(io_v2p((unsigned long)&(x)))
63
64static inline unsigned long get_clock_tick_rate(void)
65{
66	return 3686400;
67}
68#else
69
70# define __REG(x)	io_p2v(x)
71# define __PREG(x)	io_v2p(x)
72
73#endif
74
75#include "SA-1100.h"
76
77#ifdef CONFIG_SA1101
78#include "SA-1101.h"
79#endif
80
81#endif  /* _ASM_ARCH_HARDWARE_H */
82