| /* | |
| * Copyright (C) 2008 Atmel Corporation | |
| * | |
| * See file CREDITS for list of people who contributed to this project. | |
| * | |
| * This program is free software; you can redistribute it and/or modify it | |
| * under the terms of the GNU General Public License as published by the Free | |
| * Software Foundation; either version 2 of the License, or (at your option) | |
| * any later version. | |
| * | |
| * This program is distributed in the hope that it will be useful, but WITHOUT | |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
| * more details. | |
| * | |
| * You should have received a copy of the GNU General Public License along with | |
| * this program; if not, write to the Free Software Foundation, Inc., 59 Temple | |
| * Place, Suite 330, Boston, MA 02111-1307 USA | |
| */ | |
| #include <common.h> | |
| #include <netdev.h> | |
| #include <asm/io.h> | |
| #include <asm/sdram.h> | |
| #include <asm/arch/clk.h> | |
| #include <asm/arch/gpio.h> | |
| #include <asm/arch/hmatrix.h> | |
| DECLARE_GLOBAL_DATA_PTR; | |
| static const struct sdram_config sdram_config = { | |
| /* MT48LC4M32B2P-6 (16 MB) */ | |
| .data_bits = SDRAM_DATA_32BIT, | |
| .row_bits = 12, | |
| .col_bits = 8, | |
| .bank_bits = 2, | |
| .cas = 3, | |
| .twr = 2, | |
| .trc = 7, | |
| .trp = 2, | |
| .trcd = 2, | |
| .tras = 5, | |
| .txsr = 5, | |
| /* 15.6 us */ | |
| .refresh_period = (156 * (SDRAMC_BUS_HZ / 1000)) / 10000, | |
| }; | |
| int board_early_init_f(void) | |
| { | |
| /* Enable SDRAM in the EBI mux */ | |
| hmatrix_slave_write(EBI, SFR, HMATRIX_BIT(EBI_SDRAM_ENABLE)); | |
| gpio_enable_ebi(); | |
| gpio_enable_usart3(); | |
| #if defined(CONFIG_MACB) | |
| gpio_enable_macb0(); | |
| #endif | |
| #if defined(CONFIG_MMC) | |
| gpio_enable_mmci(); | |
| #endif | |
| return 0; | |
| } | |
| phys_size_t initdram(int board_type) | |
| { | |
| unsigned long expected_size; | |
| unsigned long actual_size; | |
| void *sdram_base; | |
| sdram_base = map_physmem(EBI_SDRAM_BASE, EBI_SDRAM_SIZE, MAP_NOCACHE); | |
| expected_size = sdram_init(sdram_base, &sdram_config); | |
| actual_size = get_ram_size(sdram_base, expected_size); | |
| unmap_physmem(sdram_base, EBI_SDRAM_SIZE); | |
| if (expected_size != actual_size) | |
| printf("Warning: Only %lu of %lu MiB SDRAM is working\n", | |
| actual_size >> 20, expected_size >> 20); | |
| return actual_size; | |
| } | |
| void board_init_info(void) | |
| { | |
| gd->bd->bi_phy_id[0] = 0x01; | |
| } | |
| #if defined(CONFIG_MACB) && defined(CONFIG_CMD_NET) | |
| int board_eth_init(bd_t *bi) | |
| { | |
| return macb_eth_initialize(0, (void *)MACB0_BASE, bi->bi_phy_id[0]); | |
| } | |
| #endif |