Merge branch 'header-move' of git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemo...
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / include / asm-arm / arch-at91 / hardware.h
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73a59c1c 1/*
9d041268 2 * include/asm-arm/arch-at91/hardware.h
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3 *
4 * Copyright (C) 2003 SAN People
5 * Copyright (C) 2003 ATMEL
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 */
13
14#ifndef __ASM_ARCH_HARDWARE_H
15#define __ASM_ARCH_HARDWARE_H
16
17#include <asm/sizes.h>
18
55d8baee 19#if defined(CONFIG_ARCH_AT91RM9200)
73a59c1c 20#include <asm/arch/at91rm9200.h>
61352667 21#elif defined(CONFIG_ARCH_AT91SAM9260) || defined(CONFIG_ARCH_AT91SAM9G20)
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22#include <asm/arch/at91sam9260.h>
23#elif defined(CONFIG_ARCH_AT91SAM9261)
24#include <asm/arch/at91sam9261.h>
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25#elif defined(CONFIG_ARCH_AT91SAM9263)
26#include <asm/arch/at91sam9263.h>
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27#elif defined(CONFIG_ARCH_AT91SAM9RL)
28#include <asm/arch/at91sam9rl.h>
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29#elif defined(CONFIG_ARCH_AT91CAP9)
30#include <asm/arch/at91cap9.h>
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31#elif defined(CONFIG_ARCH_AT91X40)
32#include <asm/arch/at91x40.h>
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33#else
34#error "Unsupported AT91 processor"
35#endif
36
73a59c1c 37
feb47225 38#ifdef CONFIG_MMU
73a59c1c 39/*
d0760b3b 40 * Remap the peripherals from address 0xFFF78000 .. 0xFFFFFFFF
7f6e2d99 41 * to 0xFEF78000 .. 0xFF000000. (544Kb)
73a59c1c 42 */
d0760b3b 43#define AT91_IO_PHYS_BASE 0xFFF78000
73a59c1c 44#define AT91_IO_VIRT_BASE (0xFF000000 - AT91_IO_SIZE)
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45#else
46/*
47 * Identity mapping for the non MMU case.
48 */
49#define AT91_IO_PHYS_BASE AT91_BASE_SYS
50#define AT91_IO_VIRT_BASE AT91_IO_PHYS_BASE
51#endif
52
53#define AT91_IO_SIZE (0xFFFFFFFF - AT91_IO_PHYS_BASE + 1)
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54
55 /* Convert a physical IO address to virtual IO address */
d0760b3b 56#define AT91_IO_P2V(x) ((x) - AT91_IO_PHYS_BASE + AT91_IO_VIRT_BASE)
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57
58/*
59 * Virtual to Physical Address mapping for IO devices.
60 */
61#define AT91_VA_BASE_SYS AT91_IO_P2V(AT91_BASE_SYS)
72729910 62#define AT91_VA_BASE_EMAC AT91_IO_P2V(AT91RM9200_BASE_EMAC)
73a59c1c 63
10e8e1fb 64 /* Internal SRAM is mapped below the IO devices */
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65#define AT91_SRAM_MAX SZ_1M
66#define AT91_VIRT_BASE (AT91_IO_VIRT_BASE - AT91_SRAM_MAX)
10e8e1fb 67
73a59c1c 68/* Serial ports */
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69#define ATMEL_MAX_UART 7 /* 6 USART3's and one DBGU port (SAM9260) */
70
71/* External Memory Map */
72#define AT91_CHIPSELECT_0 0x10000000
73#define AT91_CHIPSELECT_1 0x20000000
74#define AT91_CHIPSELECT_2 0x30000000
75#define AT91_CHIPSELECT_3 0x40000000
76#define AT91_CHIPSELECT_4 0x50000000
77#define AT91_CHIPSELECT_5 0x60000000
78#define AT91_CHIPSELECT_6 0x70000000
79#define AT91_CHIPSELECT_7 0x80000000
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80
81/* SDRAM */
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82#ifdef CONFIG_DRAM_BASE
83#define AT91_SDRAM_BASE CONFIG_DRAM_BASE
84#else
05043d08 85#define AT91_SDRAM_BASE AT91_CHIPSELECT_1
feb47225 86#endif
2c1f3b7a 87
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88/* Clocks */
89#define AT91_SLOW_CLOCK 32768 /* slow clock */
90
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91
92#endif