upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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117 lines
2.7 KiB
117 lines
2.7 KiB
/*
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* Copyright (C) 2005-2006 Atmel Corporation
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <asm/io.h>
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#include <asm/sdram.h>
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#include <asm/arch/clk.h>
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#include <asm/arch/gpio.h>
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#include <asm/arch/hmatrix.h>
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DECLARE_GLOBAL_DATA_PTR;
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static const struct sdram_config sdram_config = {
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#if defined(CONFIG_ATSTK1006)
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/* Dual MT48LC16M16A2-7E (64 MB) on daughterboard */
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.data_bits = SDRAM_DATA_32BIT,
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.row_bits = 13,
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.col_bits = 9,
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.bank_bits = 2,
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.cas = 2,
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.twr = 2,
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.trc = 7,
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.trp = 2,
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.trcd = 2,
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.tras = 4,
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.txsr = 7,
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/* 7.81 us */
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.refresh_period = (781 * (SDRAMC_BUS_HZ / 1000)) / 100000,
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#else
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/* MT48LC2M32B2P-5 (8 MB) on motherboard */
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#ifdef CONFIG_ATSTK1004
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.data_bits = SDRAM_DATA_16BIT,
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#else
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.data_bits = SDRAM_DATA_32BIT,
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#endif
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#ifdef CONFIG_ATSTK1000_16MB_SDRAM
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/* MT48LC4M32B2P-6 (16 MB) on mod'ed motherboard */
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.row_bits = 12,
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#else
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.row_bits = 11,
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#endif
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.col_bits = 8,
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.bank_bits = 2,
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.cas = 3,
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.twr = 2,
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.trc = 7,
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.trp = 2,
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.trcd = 2,
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.tras = 5,
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.txsr = 5,
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/* 15.6 us */
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.refresh_period = (156 * (SDRAMC_BUS_HZ / 1000)) / 10000,
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#endif
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};
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int board_early_init_f(void)
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{
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/* Enable SDRAM in the EBI mux */
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hmatrix_slave_write(EBI, SFR, HMATRIX_BIT(EBI_SDRAM_ENABLE));
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gpio_enable_ebi();
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gpio_enable_usart1();
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#if defined(CONFIG_MACB)
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gpio_enable_macb0();
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gpio_enable_macb1();
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#endif
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#if defined(CONFIG_MMC)
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gpio_enable_mmci();
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#endif
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return 0;
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}
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phys_size_t initdram(int board_type)
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{
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unsigned long expected_size;
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unsigned long actual_size;
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void *sdram_base;
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sdram_base = map_physmem(EBI_SDRAM_BASE, EBI_SDRAM_SIZE, MAP_NOCACHE);
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expected_size = sdram_init(sdram_base, &sdram_config);
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actual_size = get_ram_size(sdram_base, expected_size);
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unmap_physmem(sdram_base, EBI_SDRAM_SIZE);
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if (expected_size != actual_size)
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printf("Warning: Only %u of %u MiB SDRAM is working\n",
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actual_size >> 20, expected_size >> 20);
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return actual_size;
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}
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void board_init_info(void)
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{
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gd->bd->bi_phy_id[0] = 0x10;
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gd->bd->bi_phy_id[1] = 0x11;
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}
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