2 * Freescale MX23EVK board
4 * (C) Copyright 2013 O.S. Systems Software LTDA.
6 * Author: Otavio Salvador <otavio@ossystems.com.br>
9 * Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
10 * on behalf of DENX Software Engineering GmbH
12 * See file CREDITS for list of people who contributed to this
15 * This program is free software; you can redistribute it and/or
16 * modify it under the terms of the GNU General Public License as
17 * published by the Free Software Foundation; either version 2 of
18 * the License, or (at your option) any later version.
20 * This program is distributed in the hope that it will be useful,
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 * GNU General Public License for more details.
28 #include <asm/arch/imx-regs.h>
29 #include <asm/arch/clock.h>
30 #include <asm/arch/iomux-mx23.h>
31 #include <asm/arch/sys_proto.h>
33 DECLARE_GLOBAL_DATA_PTR;
38 int board_early_init_f(void)
40 /* IO0 clock at 480MHz */
41 mxs_set_ioclk(MXC_IOCLK0, 480000);
43 /* SSP0 clock at 96MHz */
44 mxs_set_sspclk(MXC_SSPCLK0, 96000, 0);
47 gpio_direction_output(MX23_PAD_LCD_RESET__GPIO_1_18, 1);
49 /* Set contrast to maximum */
50 gpio_direction_output(MX23_PAD_PWM2__GPIO_1_28, 1);
57 return mxs_dram_init();
62 /* Adress of boot parameters */
63 gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
69 static int mx23evk_mmc_wp(int id)
72 printf("MXS MMC: Invalid card selected (card id = %d)\n", id);
76 return gpio_get_value(MX23_PAD_PWM4__GPIO_1_30);
79 int board_mmc_init(bd_t *bis)
81 /* Configure WP as input */
82 gpio_direction_input(MX23_PAD_PWM4__GPIO_1_30);
84 /* Configure MMC0 Power Enable */
85 gpio_direction_output(MX23_PAD_PWM3__GPIO_1_29, 0);
87 return mxsmmc_initialize(bis, 0, mx23evk_mmc_wp, NULL);