source: SVN/rincon/u-boot/board/atmel/atstk1000/atstk1000.c @ 55

Last change on this file since 55 was 55, checked in by Tim Harvey, 22 months ago

rincon: added latest u-boot source

restored form server backup

Signed-off-by: Tim Harvey <tharvey@…>

File size: 3.0 KB
Line 
1/*
2 * Copyright (C) 2005-2006 Atmel Corporation
3 *
4 * See file CREDITS for list of people who contributed to this
5 * project.
6 *
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.
11 *
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.
16 *
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,
20 * MA 02111-1307 USA
21 */
22#include <common.h>
23
24#include <asm/io.h>
25#include <asm/sdram.h>
26#include <asm/arch/clk.h>
27#include <asm/arch/gpio.h>
28#include <asm/arch/hmatrix.h>
29#include <netdev.h>
30
31DECLARE_GLOBAL_DATA_PTR;
32
33static 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,
37        .row_bits       = 13,
38        .col_bits       = 9,
39        .bank_bits      = 2,
40        .cas            = 2,
41        .twr            = 2,
42        .trc            = 7,
43        .trp            = 2,
44        .trcd           = 2,
45        .tras           = 4,
46        .txsr           = 7,
47        /* 7.81 us */
48        .refresh_period = (781 * (SDRAMC_BUS_HZ / 1000)) / 100000,
49#else
50        /* MT48LC2M32B2P-5 (8 MB) on motherboard */
51#ifdef CONFIG_ATSTK1004
52        .data_bits      = SDRAM_DATA_16BIT,
53#else
54        .data_bits      = SDRAM_DATA_32BIT,
55#endif
56#ifdef CONFIG_ATSTK1000_16MB_SDRAM
57        /* MT48LC4M32B2P-6 (16 MB) on mod'ed motherboard */
58        .row_bits       = 12,
59#else
60        .row_bits       = 11,
61#endif
62        .col_bits       = 8,
63        .bank_bits      = 2,
64        .cas            = 3,
65        .twr            = 2,
66        .trc            = 7,
67        .trp            = 2,
68        .trcd           = 2,
69        .tras           = 5,
70        .txsr           = 5,
71        /* 15.6 us */
72        .refresh_period = (156 * (SDRAMC_BUS_HZ / 1000)) / 10000,
73#endif
74};
75
76int board_early_init_f(void)
77{
78        /* Enable SDRAM in the EBI mux */
79        hmatrix_slave_write(EBI, SFR, HMATRIX_BIT(EBI_SDRAM_ENABLE));
80
81        gpio_enable_ebi();
82        gpio_enable_usart1();
83#if defined(CONFIG_MACB)
84        gpio_enable_macb0();
85        gpio_enable_macb1();
86#endif
87#if defined(CONFIG_MMC)
88        gpio_enable_mmci();
89#endif
90
91        return 0;
92}
93
94phys_size_t initdram(int board_type)
95{
96        unsigned long expected_size;
97        unsigned long actual_size;
98        void *sdram_base;
99
100        sdram_base = map_physmem(EBI_SDRAM_BASE, EBI_SDRAM_SIZE, MAP_NOCACHE);
101
102        expected_size = sdram_init(sdram_base, &sdram_config);
103        actual_size = get_ram_size(sdram_base, expected_size);
104
105        unmap_physmem(sdram_base, EBI_SDRAM_SIZE);
106
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);
110
111        return actual_size;
112}
113
114void board_init_info(void)
115{
116        gd->bd->bi_phy_id[0] = 0x10;
117        gd->bd->bi_phy_id[1] = 0x11;
118}
119
120#ifdef CONFIG_CMD_NET
121int board_eth_init(bd_t *bi)
122{
123        macb_eth_initialize(0, (void *)MACB0_BASE, bi->bi_phy_id[0]);
124        macb_eth_initialize(1, (void *)MACB1_BASE, bi->bi_phy_id[1]);
125        return 0;
126}
127#endif
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