uboot-vybrid_public/board/freescale/mx6qsabreauto/mx6qsabreauto.c

/*
 * Copyright (C) 2012 Freescale Semiconductor, Inc.
 *
 * Author: Fabio Estevam <fabio.estevam@freescale.com>
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#include <common.h>
#include <asm/io.h>
#include <asm/arch/clock.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/iomux.h>
#include <asm/arch/mx6x_pins.h>
#include <asm/errno.h>
#include <asm/gpio.h>
#include <asm/imx-common/iomux-v3.h>
#include <mmc.h>
#include <fsl_esdhc.h>
DECLARE_GLOBAL_DATA_PTR;

#define UART_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE |            \
	PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |               \
	PAD_CTL_DSE_40ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)

#define USDHC_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE |            \
	PAD_CTL_PUS_47K_UP  | PAD_CTL_SPEED_LOW |               \
	PAD_CTL_DSE_80ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)

int dram_init(void)
{
	gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);

	return 0;
}

iomux_v3_cfg_t uart4_pads[] = {
	MX6Q_PAD_KEY_COL0__UART4_TXD | MUX_PAD_CTRL(UART_PAD_CTRL),
	MX6Q_PAD_KEY_ROW0__UART4_RXD | MUX_PAD_CTRL(UART_PAD_CTRL),
};

iomux_v3_cfg_t usdhc3_pads[] = {
	MX6Q_PAD_SD3_CLK__USDHC3_CLK	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6Q_PAD_SD3_CMD__USDHC3_CMD	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6Q_PAD_SD3_DAT0__USDHC3_DAT0	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6Q_PAD_SD3_DAT1__USDHC3_DAT1	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6Q_PAD_SD3_DAT2__USDHC3_DAT2	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6Q_PAD_SD3_DAT3__USDHC3_DAT3	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6Q_PAD_SD3_DAT4__USDHC3_DAT4	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6Q_PAD_SD3_DAT5__USDHC3_DAT5	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6Q_PAD_SD3_DAT6__USDHC3_DAT6	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6Q_PAD_SD3_DAT7__USDHC3_DAT7	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6Q_PAD_GPIO_18__USDHC3_VSELECT | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6Q_PAD_NANDF_CS2__GPIO_6_15   | MUX_PAD_CTRL(NO_PAD_CTRL),
};

static void setup_iomux_uart(void)
{
	imx_iomux_v3_setup_multiple_pads(uart4_pads, ARRAY_SIZE(uart4_pads));
}

#ifdef CONFIG_FSL_ESDHC
struct fsl_esdhc_cfg usdhc_cfg[1] = {
	{USDHC3_BASE_ADDR},
};

int board_mmc_getcd(struct mmc *mmc)
{
	gpio_direction_input(IMX_GPIO_NR(6, 15));
	return !gpio_get_value(IMX_GPIO_NR(6, 15));
}

int board_mmc_init(bd_t *bis)
{
	imx_iomux_v3_setup_multiple_pads(usdhc3_pads, ARRAY_SIZE(usdhc3_pads));

	return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
}
#endif

u32 get_board_rev(void)
{
	return 0x63000;
}

int board_early_init_f(void)
{
	setup_iomux_uart();

	return 0;
}

int board_init(void)
{
	/* address of boot parameters */
	gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;

	return 0;
}

int checkboard(void)
{
	puts("Board: MX6Q-Sabreauto\n");

	return 0;
}