2 * Copyright (C) 2005-2006 Atmel Corporation
4 * See file CREDITS for list of people who contributed to this
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation; either version 2 of
10 * the License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
25 #include <asm/sdram.h>
26 #include <asm/arch/clk.h>
27 #include <asm/arch/hmatrix.h>
28 #include <asm/arch/portmux.h>
31 DECLARE_GLOBAL_DATA_PTR;
33 static const struct sdram_config sdram_config = {
34 #if defined(CONFIG_ATSTK1006)
35 /* Dual MT48LC16M16A2-7E (64 MB) on daughterboard */
36 .data_bits = SDRAM_DATA_32BIT,
48 .refresh_period = (781 * (SDRAMC_BUS_HZ / 1000)) / 100000,
50 /* MT48LC2M32B2P-5 (8 MB) on motherboard */
51 #ifdef CONFIG_ATSTK1004
52 .data_bits = SDRAM_DATA_16BIT,
54 .data_bits = SDRAM_DATA_32BIT,
56 #ifdef CONFIG_ATSTK1000_16MB_SDRAM
57 /* MT48LC4M32B2P-6 (16 MB) on mod'ed motherboard */
72 .refresh_period = (156 * (SDRAMC_BUS_HZ / 1000)) / 10000,
76 int board_early_init_f(void)
78 /* Enable SDRAM in the EBI mux */
79 hmatrix_slave_write(EBI, SFR, HMATRIX_BIT(EBI_SDRAM_ENABLE));
81 portmux_enable_ebi(sdram_config.data_bits, 23, 0, PORTMUX_DRIVE_HIGH);
82 portmux_enable_usart1(PORTMUX_DRIVE_MIN);
83 #if defined(CONFIG_MACB)
84 portmux_enable_macb0(PORTMUX_MACB_MII, PORTMUX_DRIVE_LOW);
85 portmux_enable_macb1(PORTMUX_MACB_MII, PORTMUX_DRIVE_LOW);
87 #if defined(CONFIG_MMC)
88 portmux_enable_mmci(0, PORTMUX_MMCI_4BIT, PORTMUX_DRIVE_LOW);
94 phys_size_t initdram(int board_type)
96 unsigned long expected_size;
97 unsigned long actual_size;
100 sdram_base = map_physmem(EBI_SDRAM_BASE, EBI_SDRAM_SIZE, MAP_NOCACHE);
102 expected_size = sdram_init(sdram_base, &sdram_config);
103 actual_size = get_ram_size(sdram_base, expected_size);
105 unmap_physmem(sdram_base, EBI_SDRAM_SIZE);
107 if (expected_size != actual_size)
108 printf("Warning: Only %lu of %lu MiB SDRAM is working\n",
109 actual_size >> 20, expected_size >> 20);
114 int board_early_init_r(void)
116 gd->bd->bi_phy_id[0] = 0x10;
117 gd->bd->bi_phy_id[1] = 0x11;
121 #ifdef CONFIG_CMD_NET
122 int board_eth_init(bd_t *bi)
124 macb_eth_initialize(0, (void *)MACB0_BASE, bi->bi_phy_id[0]);
125 macb_eth_initialize(1, (void *)MACB1_BASE, bi->bi_phy_id[1]);