Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
[linux-2.6.git] / arch / arm / mach-at91 / include / mach / hardware.h
1 /*
2  * arch/arm/mach-at91/include/mach/hardware.h
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
19 #if defined(CONFIG_ARCH_AT91RM9200)
20 #include <mach/at91rm9200.h>
21 #elif defined(CONFIG_ARCH_AT91SAM9260) || defined(CONFIG_ARCH_AT91SAM9G20)
22 #include <mach/at91sam9260.h>
23 #elif defined(CONFIG_ARCH_AT91SAM9261) || defined(CONFIG_ARCH_AT91SAM9G10)
24 #include <mach/at91sam9261.h>
25 #elif defined(CONFIG_ARCH_AT91SAM9263)
26 #include <mach/at91sam9263.h>
27 #elif defined(CONFIG_ARCH_AT91SAM9RL)
28 #include <mach/at91sam9rl.h>
29 #elif defined(CONFIG_ARCH_AT91SAM9G45)
30 #include <mach/at91sam9g45.h>
31 #elif defined(CONFIG_ARCH_AT91CAP9)
32 #include <mach/at91cap9.h>
33 #elif defined(CONFIG_ARCH_AT91X40)
34 #include <mach/at91x40.h>
35 #else
36 #error "Unsupported AT91 processor"
37 #endif
38
39
40 #ifdef CONFIG_MMU
41 /*
42  * Remap the peripherals from address 0xFFF78000 .. 0xFFFFFFFF
43  * to 0xFEF78000 .. 0xFF000000.  (544Kb)
44  */
45 #define AT91_IO_PHYS_BASE       0xFFF78000
46 #define AT91_IO_VIRT_BASE       (0xFF000000 - AT91_IO_SIZE)
47 #else
48 /*
49  * Identity mapping for the non MMU case.
50  */
51 #define AT91_IO_PHYS_BASE       AT91_BASE_SYS
52 #define AT91_IO_VIRT_BASE       AT91_IO_PHYS_BASE
53 #endif
54
55 #define AT91_IO_SIZE            (0xFFFFFFFF - AT91_IO_PHYS_BASE + 1)
56
57  /* Convert a physical IO address to virtual IO address */
58 #define AT91_IO_P2V(x)          ((x) - AT91_IO_PHYS_BASE + AT91_IO_VIRT_BASE)
59
60 /*
61  * Virtual to Physical Address mapping for IO devices.
62  */
63 #define AT91_VA_BASE_SYS        AT91_IO_P2V(AT91_BASE_SYS)
64 #define AT91_VA_BASE_EMAC       AT91_IO_P2V(AT91RM9200_BASE_EMAC)
65
66  /* Internal SRAM is mapped below the IO devices */
67 #define AT91_SRAM_MAX           SZ_1M
68 #define AT91_VIRT_BASE          (AT91_IO_VIRT_BASE - AT91_SRAM_MAX)
69
70 /* Serial ports */
71 #define ATMEL_MAX_UART          7               /* 6 USART3's and one DBGU port (SAM9260) */
72
73 /* External Memory Map */
74 #define AT91_CHIPSELECT_0       0x10000000
75 #define AT91_CHIPSELECT_1       0x20000000
76 #define AT91_CHIPSELECT_2       0x30000000
77 #define AT91_CHIPSELECT_3       0x40000000
78 #define AT91_CHIPSELECT_4       0x50000000
79 #define AT91_CHIPSELECT_5       0x60000000
80 #define AT91_CHIPSELECT_6       0x70000000
81 #define AT91_CHIPSELECT_7       0x80000000
82
83 /* SDRAM */
84 #ifdef CONFIG_DRAM_BASE
85 #define AT91_SDRAM_BASE         CONFIG_DRAM_BASE
86 #else
87 #define AT91_SDRAM_BASE         AT91_CHIPSELECT_1
88 #endif
89
90 /* Clocks */
91 #define AT91_SLOW_CLOCK         32768           /* slow clock */
92
93
94 #endif