wdenk | 7c202ac | 2002-09-09 08:35:37 +0000 | [diff] [blame] | 1 | /* |
| 2 | * (C) Copyright 2002 |
| 3 | * Sysgo Real-Time Solutions, GmbH <www.elinos.com> |
| 4 | * Alex Zuepke <azu@sysgo.de> |
| 5 | * |
| 6 | * See file CREDITS for list of people who contributed to this |
| 7 | * project. |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or |
| 10 | * modify it under the terms of the GNU General Public License as |
| 11 | * published by the Free Software Foundation; either version 2 of |
| 12 | * the License, or (at your option) any later version. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | * GNU General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this program; if not, write to the Free Software |
| 21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 22 | * MA 02111-1307 USA |
| 23 | */ |
| 24 | |
| 25 | #include <common.h> |
| 26 | |
| 27 | /* ------------------------------------------------------------------------- */ |
| 28 | |
| 29 | |
| 30 | /* |
| 31 | * Miscelaneous platform dependent initialisations |
| 32 | */ |
| 33 | |
| 34 | int board_init (void) |
| 35 | { |
| 36 | DECLARE_GLOBAL_DATA_PTR; |
| 37 | |
| 38 | /* memory and cpu-speed are setup before relocation */ |
| 39 | /* but if we use InfernoLoader, we must do some inits here */ |
| 40 | |
| 41 | #ifdef CONFIG_INFERNO |
| 42 | { |
| 43 | unsigned long temp; |
| 44 | __asm__ __volatile__(/* disable MMU, enable icache */ |
| 45 | "mrc p15, 0, %0, c1, c0\n" |
| 46 | "bic %0, %0, #0x00002000\n" |
| 47 | "bic %0, %0, #0x0000000f\n" |
| 48 | "orr %0, %0, #0x00001000\n" |
| 49 | "orr %0, %0, #0x00000002\n" |
| 50 | "mcr p15, 0, %0, c1, c0\n" |
| 51 | /* flush caches */ |
| 52 | "mov %0, #0\n" |
| 53 | "mcr p15, 0, %0, c7, c7, 0\n" |
| 54 | "mcr p15, 0, %0, c8, c7, 0\n" |
| 55 | : "=r" (temp) |
| 56 | : |
| 57 | : "memory"); |
| 58 | /* setup PCMCIA timing */ |
| 59 | temp = 0xa0000018; |
| 60 | *(unsigned long *)temp = 0x00060006; |
| 61 | |
| 62 | } |
| 63 | #endif /* CONFIG_INIT_CRITICAL */ |
| 64 | |
| 65 | /* arch number for shannon */ |
| 66 | gd->bd->bi_arch_number = 97; |
| 67 | |
| 68 | /* adress of boot parameters */ |
| 69 | gd->bd->bi_boot_params = 0xc0000100; |
| 70 | |
| 71 | return 0; |
| 72 | } |
| 73 | |
| 74 | int dram_init (void) |
| 75 | { |
| 76 | #if defined(PHYS_SDRAM_1) || defined(PHYS_SDRAM_2) || \ |
| 77 | defined(PHYS_SDRAM_3) || defined(PHYS_SDRAM_4) |
| 78 | DECLARE_GLOBAL_DATA_PTR; |
| 79 | bd_t *bd = gd->bd; |
| 80 | #endif |
| 81 | |
| 82 | #ifdef PHYS_SDRAM_1 |
| 83 | bd->bi_dram[0].start = PHYS_SDRAM_1; |
| 84 | bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE; |
| 85 | #endif |
| 86 | |
| 87 | #ifdef PHYS_SDRAM_2 |
| 88 | bd->bi_dram[1].start = PHYS_SDRAM_2; |
| 89 | bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE; |
| 90 | #endif |
| 91 | |
| 92 | #ifdef PHYS_SDRAM_3 |
| 93 | bd->bi_dram[2].start = PHYS_SDRAM_3; |
| 94 | bd->bi_dram[2].size = PHYS_SDRAM_3_SIZE; |
| 95 | #endif |
| 96 | |
| 97 | #ifdef PHYS_SDRAM_4 |
| 98 | bd->bi_dram[3].start = PHYS_SDRAM_4; |
| 99 | bd->bi_dram[3].size = PHYS_SDRAM_4_SIZE; |
| 100 | #endif |
| 101 | |
| 102 | return (0); |
| 103 | } |