mirror of
https://github.com/brain-hackers/u-boot-brain
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81ca840976
The following features are supported: * 128 MB DDR1 SDRAM * DUART * SD/MMC Card Socket Signed-off-by: Otavio Salvador <otavio@ossystems.com.br> Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
84 lines
1.8 KiB
C
84 lines
1.8 KiB
C
/*
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* Freescale MX23EVK board
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*
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* (C) Copyright 2013 O.S. Systems Software LTDA.
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*
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* Author: Otavio Salvador <otavio@ossystems.com.br>
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*
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* Based on m28evk.c:
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* Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
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* on behalf of DENX Software Engineering GmbH
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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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#include <common.h>
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#include <asm/gpio.h>
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#include <asm/arch/imx-regs.h>
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#include <asm/arch/clock.h>
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#include <asm/arch/iomux-mx23.h>
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#include <asm/arch/sys_proto.h>
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DECLARE_GLOBAL_DATA_PTR;
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/*
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* Functions
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*/
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int board_early_init_f(void)
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{
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/* IO0 clock at 480MHz */
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mxs_set_ioclk(MXC_IOCLK0, 480000);
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/* SSP0 clock at 96MHz */
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mxs_set_sspclk(MXC_SSPCLK0, 96000, 0);
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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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return mxs_dram_init();
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}
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int board_init(void)
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{
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/* Adress of boot parameters */
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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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#ifdef CONFIG_CMD_MMC
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static int mx23evk_mmc_wp(int id)
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{
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if (id != 0) {
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printf("MXS MMC: Invalid card selected (card id = %d)\n", id);
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return 1;
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}
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return gpio_get_value(MX23_PAD_PWM4__GPIO_1_30);
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}
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int board_mmc_init(bd_t *bis)
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{
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/* Configure WP as input */
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gpio_direction_input(MX23_PAD_PWM4__GPIO_1_30);
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/* Configure MMC0 Power Enable */
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gpio_direction_output(MX23_PAD_PWM3__GPIO_1_29, 0);
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return mxsmmc_initialize(bis, 0, mx23evk_mmc_wp, NULL);
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}
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#endif
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