| Matthias Kaehlcke | cf3c142 | 2010-02-01 21:29:48 +0100 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2009 Matthias Kaehlcke <matthias@kaehlcke.net> |
| 3 | * |
| 4 | * (C) Copyright 2002 2003 |
| 5 | * Network Audio Technologies, Inc. <www.netaudiotech.com> |
| 6 | * Adam Bezanson <bezanson@netaudiotech.com> |
| 7 | * |
| 8 | * See file CREDITS for list of people who contributed to this |
| 9 | * project. |
| 10 | * |
| 11 | * This program is free software; you can redistribute it and/or |
| 12 | * modify it under the terms of the GNU General Public License as |
| 13 | * published by the Free Software Foundation; either version 2 of |
| 14 | * the License, or (at your option) any later version. |
| 15 | * |
| 16 | * This program is distributed in the hope that it will be useful, |
| 17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 19 | * GNU General Public License for more details. |
| 20 | * |
| 21 | * You should have received a copy of the GNU General Public License |
| 22 | * along with this program; if not, write to the Free Software |
| 23 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 24 | * MA 02111-1307 USA |
| 25 | */ |
| 26 | |
| 27 | #include <common.h> |
| 28 | #include <netdev.h> |
| 29 | #include <asm/arch/ep93xx.h> |
| 30 | #include <asm/io.h> |
| 31 | |
| 32 | DECLARE_GLOBAL_DATA_PTR; |
| 33 | |
| 34 | #define MAX_BANK_SIZE 0x04000000 /* 64 MB */ |
| 35 | |
| 36 | static ulong const bank_addr[CONFIG_NR_DRAM_BANKS] = { |
| 37 | PHYS_SDRAM_1, |
| 38 | #ifdef PHYS_SDRAM_2 |
| 39 | PHYS_SDRAM_2, |
| 40 | #endif |
| 41 | #ifdef PHYS_SDRAM_3 |
| 42 | PHYS_SDRAM_3, |
| 43 | #endif |
| 44 | #ifdef PHYS_SDRAM_4 |
| 45 | PHYS_SDRAM_4 |
| 46 | #endif |
| 47 | }; |
| 48 | |
| 49 | int board_init(void) |
| 50 | { |
| 51 | struct syscon_regs *syscon = (struct syscon_regs *)SYSCON_BASE; |
| 52 | |
| 53 | icache_enable(); |
| 54 | |
| 55 | #ifdef USE_920T_MMU |
| 56 | dcache_enable(); |
| 57 | #endif |
| 58 | |
| 59 | /* |
| 60 | * set UARTBAUD bit to drive UARTs with 14.7456MHz instead of |
| 61 | * 14.7456/2 MHz |
| 62 | */ |
| 63 | uint32_t value = readl(&syscon->pwrcnt); |
| 64 | value |= SYSCON_PWRCNT_UART_BAUD; |
| 65 | writel(value, &syscon->pwrcnt); |
| 66 | |
| 67 | /* Machine number, as defined in linux/arch/arm/tools/mach-types */ |
| 68 | gd->bd->bi_arch_number = CONFIG_MACH_TYPE; |
| 69 | |
| 70 | /* adress of boot parameters */ |
| 71 | gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR; |
| 72 | |
| 73 | /* We have a console */ |
| 74 | gd->have_console = 1; |
| 75 | |
| 76 | return 0; |
| 77 | } |
| 78 | |
| 79 | int board_eth_init(bd_t *bd) |
| 80 | { |
| 81 | return ep93xx_eth_initialize(0, MAC_BASE); |
| 82 | } |
| 83 | |
| 84 | int dram_init(void) |
| 85 | { |
| 86 | unsigned int *src, *dst; |
| 87 | int i; |
| 88 | |
| 89 | for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) { |
| 90 | const ulong bank_size = get_ram_size((long *)bank_addr[i], |
| 91 | MAX_BANK_SIZE); |
| 92 | if (bank_size) { |
| 93 | gd->bd->bi_dram[i].start = bank_addr[i]; |
| 94 | gd->bd->bi_dram[i].size = bank_size; |
| 95 | } |
| 96 | } |
| 97 | |
| 98 | /* copy exception vectors */ |
| 99 | src = (unsigned int *)_armboot_start; |
| 100 | dst = (unsigned int *)PHYS_SDRAM_1; |
| 101 | memcpy(dst, src, 16 * sizeof(unsigned int)); |
| 102 | |
| 103 | return 0; |
| 104 | } |