| /* |
| * 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/hmatrix.h> |
| #include <asm/arch/portmux.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)); |
| |
| portmux_enable_ebi(32, 23, 0, PORTMUX_DRIVE_HIGH); |
| portmux_enable_usart3(PORTMUX_DRIVE_MIN); |
| #if defined(CONFIG_MACB) |
| portmux_enable_macb0(PORTMUX_MACB_MII, PORTMUX_DRIVE_HIGH); |
| #endif |
| #if defined(CONFIG_MMC) |
| portmux_enable_mmci(0, PORTMUX_MMCI_4BIT, PORTMUX_DRIVE_LOW); |
| #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; |
| } |
| |
| int board_early_init_r(void) |
| { |
| gd->bd->bi_phy_id[0] = 0x01; |
| return 0; |
| } |
| |
| #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 |
