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https://github.com/AsahiLinux/u-boot
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2528dc5236
Add setup for ethernet on SMDKC100, allowing kernel/ramdisk to be loaded over tftp. The preinit function will configure GPIO (GPK0CON) & SROMC to look for environment in SROM Bank 3. Signed-off-by: Naveen Krishna Ch <ch.naveen@samsung.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
90 lines
2.3 KiB
C
90 lines
2.3 KiB
C
/*
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* Copyright (C) 2008-2009 Samsung Electronics
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* Minkyu Kang <mk7.kang@samsung.com>
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* Kyungmin Park <kyungmin.park@samsung.com>
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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/arch/smc.h>
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#include <asm/arch/gpio.h>
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#include <netdev.h>
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DECLARE_GLOBAL_DATA_PTR;
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/*
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* Miscellaneous platform dependent initialisations
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*/
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static void smc9115_pre_init(void)
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{
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u32 smc_bw_conf, smc_bc_conf;
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struct s5pc100_gpio *const gpio =
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(struct s5pc100_gpio *)S5PC100_GPIO_BASE;
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/* gpio configuration GPK0CON */
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gpio_cfg_pin(&gpio->gpio_k0, CONFIG_ENV_SROM_BANK, GPIO_FUNC(2));
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/* Ethernet needs bus width of 16 bits */
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smc_bw_conf = SMC_DATA16_WIDTH(CONFIG_ENV_SROM_BANK);
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smc_bc_conf = SMC_BC_TACS(0x0) | SMC_BC_TCOS(0x4) | SMC_BC_TACC(0xe)
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| SMC_BC_TCOH(0x1) | SMC_BC_TAH(0x4)
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| SMC_BC_TACP(0x6) | SMC_BC_PMC(0x0);
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/* Select and configure the SROMC bank */
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s5pc1xx_config_sromc(CONFIG_ENV_SROM_BANK, smc_bw_conf, smc_bc_conf);
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}
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int board_init(void)
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{
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smc9115_pre_init();
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gd->bd->bi_arch_number = MACH_TYPE_SMDKC100;
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gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
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return 0;
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}
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int dram_init(void)
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{
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gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
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gd->bd->bi_dram[0].size = get_ram_size((long *)PHYS_SDRAM_1,
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PHYS_SDRAM_1_SIZE);
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return 0;
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}
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#ifdef CONFIG_DISPLAY_BOARDINFO
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int checkboard(void)
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{
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printf("Board:\tSMDKC100\n");
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return 0;
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}
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#endif
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int board_eth_init(bd_t *bis)
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{
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int rc = 0;
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#ifdef CONFIG_SMC911X
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rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
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#endif
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return rc;
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}
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