| Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame^] | 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) |
| 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_AT91CAP9) |
| 30 | #include <mach/at91cap9.h> |
| 31 | #elif defined(CONFIG_ARCH_AT91X40) |
| 32 | #include <mach/at91x40.h> |
| 33 | #else |
| 34 | #error "Unsupported AT91 processor" |
| 35 | #endif |
| 36 | |
| 37 | |
| 38 | #ifdef CONFIG_MMU |
| 39 | /* |
| 40 | * Remap the peripherals from address 0xFFF78000 .. 0xFFFFFFFF |
| 41 | * to 0xFEF78000 .. 0xFF000000. (544Kb) |
| 42 | */ |
| 43 | #define AT91_IO_PHYS_BASE 0xFFF78000 |
| 44 | #define AT91_IO_VIRT_BASE (0xFF000000 - AT91_IO_SIZE) |
| 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) |
| 54 | |
| 55 | /* Convert a physical IO address to virtual IO address */ |
| 56 | #define AT91_IO_P2V(x) ((x) - AT91_IO_PHYS_BASE + AT91_IO_VIRT_BASE) |
| 57 | |
| 58 | /* |
| 59 | * Virtual to Physical Address mapping for IO devices. |
| 60 | */ |
| 61 | #define AT91_VA_BASE_SYS AT91_IO_P2V(AT91_BASE_SYS) |
| 62 | #define AT91_VA_BASE_EMAC AT91_IO_P2V(AT91RM9200_BASE_EMAC) |
| 63 | |
| 64 | /* Internal SRAM is mapped below the IO devices */ |
| 65 | #define AT91_SRAM_MAX SZ_1M |
| 66 | #define AT91_VIRT_BASE (AT91_IO_VIRT_BASE - AT91_SRAM_MAX) |
| 67 | |
| 68 | /* Serial ports */ |
| 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 |
| 80 | |
| 81 | /* SDRAM */ |
| 82 | #ifdef CONFIG_DRAM_BASE |
| 83 | #define AT91_SDRAM_BASE CONFIG_DRAM_BASE |
| 84 | #else |
| 85 | #define AT91_SDRAM_BASE AT91_CHIPSELECT_1 |
| 86 | #endif |
| 87 | |
| 88 | /* Clocks */ |
| 89 | #define AT91_SLOW_CLOCK 32768 /* slow clock */ |
| 90 | |
| 91 | |
| 92 | #endif |