board/freescale/mx53loco/mx53loco.c - platform/external/u-boot - Gitiles

 /*
  * Copyright (C) 2011 Freescale Semiconductor, Inc.
  * Jason Liu <r64343@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.
  *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  * MA 02111-1307 USA
  */

 #include <common.h>
 #include <asm/io.h>
 #include <asm/arch/imx-regs.h>
 #include <asm/arch/mx5x_pins.h>
 #include <asm/arch/sys_proto.h>
 #include <asm/arch/crm_regs.h>
 #include <asm/arch/iomux.h>
 #include <asm/arch/clock.h>
 #include <asm/errno.h>
 #include <netdev.h>
 #include <i2c.h>
 #include <mmc.h>
 #include <fsl_esdhc.h>
 #include <asm/gpio.h>

 DECLARE_GLOBAL_DATA_PTR;

 int dram_init(void)
 {
 	u32 size1, size2;

 	size1 = get_ram_size((void *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE);
 	size2 = get_ram_size((void *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE);

 	gd->ram_size = size1 + size2;

 	return 0;
 }
 void dram_init_banksize(void)
 {
 	gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
 	gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;

 	gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
 	gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE;
 }

 static void setup_iomux_uart(void)
 {
 	/* UART1 RXD */
 	mxc_request_iomux(MX53_PIN_CSI0_D11, IOMUX_CONFIG_ALT2);
 	mxc_iomux_set_pad(MX53_PIN_CSI0_D11,
 				PAD_CTL_HYS_ENABLE | PAD_CTL_DRV_HIGH |
 				PAD_CTL_PUE_PULL | PAD_CTL_PKE_ENABLE |
 				PAD_CTL_HYS_ENABLE | PAD_CTL_100K_PU |
 				PAD_CTL_ODE_OPENDRAIN_ENABLE);
 	mxc_iomux_set_input(MX53_UART1_IPP_UART_RXD_MUX_SELECT_INPUT, 0x1);

 	/* UART1 TXD */
 	mxc_request_iomux(MX53_PIN_CSI0_D10, IOMUX_CONFIG_ALT2);
 	mxc_iomux_set_pad(MX53_PIN_CSI0_D10,
 				PAD_CTL_HYS_ENABLE | PAD_CTL_DRV_HIGH |
 				PAD_CTL_PUE_PULL | PAD_CTL_PKE_ENABLE |
 				PAD_CTL_HYS_ENABLE | PAD_CTL_100K_PU |
 				PAD_CTL_ODE_OPENDRAIN_ENABLE);
 }

 #ifdef CONFIG_USB_EHCI_MX5
 int board_ehci_hcd_init(int port)
 {
 	/* request VBUS power enable pin, GPIO[8}, gpio7 */
 	mxc_request_iomux(MX53_PIN_ATA_DA_2, IOMUX_CONFIG_ALT1);
 	gpio_direction_output(IOMUX_TO_GPIO(MX53_PIN_ATA_DA_2), 0);
 	gpio_set_value(IOMUX_TO_GPIO(MX53_PIN_ATA_DA_2), 1);
 	return 0;
 }
 #endif

 static void setup_iomux_fec(void)
 {
 	/*FEC_MDIO*/
 	mxc_request_iomux(MX53_PIN_FEC_MDIO, IOMUX_CONFIG_ALT0);
 	mxc_iomux_set_pad(MX53_PIN_FEC_MDIO,
 				PAD_CTL_HYS_ENABLE | PAD_CTL_DRV_HIGH |
 				PAD_CTL_PUE_PULL | PAD_CTL_PKE_ENABLE |
 				PAD_CTL_22K_PU | PAD_CTL_ODE_OPENDRAIN_ENABLE);
 	mxc_iomux_set_input(MX53_FEC_FEC_MDI_SELECT_INPUT, 0x1);

 	/*FEC_MDC*/
 	mxc_request_iomux(MX53_PIN_FEC_MDC, IOMUX_CONFIG_ALT0);
 	mxc_iomux_set_pad(MX53_PIN_FEC_MDC, PAD_CTL_DRV_HIGH);

 	/* FEC RXD1 */
 	mxc_request_iomux(MX53_PIN_FEC_RXD1, IOMUX_CONFIG_ALT0);
 	mxc_iomux_set_pad(MX53_PIN_FEC_RXD1,
 			PAD_CTL_HYS_ENABLE | PAD_CTL_PKE_ENABLE);

 	/* FEC RXD0 */
 	mxc_request_iomux(MX53_PIN_FEC_RXD0, IOMUX_CONFIG_ALT0);
 	mxc_iomux_set_pad(MX53_PIN_FEC_RXD0,
 			PAD_CTL_HYS_ENABLE | PAD_CTL_PKE_ENABLE);

 	 /* FEC TXD1 */
 	mxc_request_iomux(MX53_PIN_FEC_TXD1, IOMUX_CONFIG_ALT0);
 	mxc_iomux_set_pad(MX53_PIN_FEC_TXD1, PAD_CTL_DRV_HIGH);

 	/* FEC TXD0 */
 	mxc_request_iomux(MX53_PIN_FEC_TXD0, IOMUX_CONFIG_ALT0);
 	mxc_iomux_set_pad(MX53_PIN_FEC_TXD0, PAD_CTL_DRV_HIGH);

 	/* FEC TX_EN */
 	mxc_request_iomux(MX53_PIN_FEC_TX_EN, IOMUX_CONFIG_ALT0);
 	mxc_iomux_set_pad(MX53_PIN_FEC_TX_EN, PAD_CTL_DRV_HIGH);

 	/* FEC TX_CLK */
 	mxc_request_iomux(MX53_PIN_FEC_REF_CLK, IOMUX_CONFIG_ALT0);
 	mxc_iomux_set_pad(MX53_PIN_FEC_REF_CLK,
 			PAD_CTL_HYS_ENABLE | PAD_CTL_PKE_ENABLE);

 	/* FEC RX_ER */
 	mxc_request_iomux(MX53_PIN_FEC_RX_ER, IOMUX_CONFIG_ALT0);
 	mxc_iomux_set_pad(MX53_PIN_FEC_RX_ER,
 			PAD_CTL_HYS_ENABLE | PAD_CTL_PKE_ENABLE);

 	/* FEC CRS */
 	mxc_request_iomux(MX53_PIN_FEC_CRS_DV, IOMUX_CONFIG_ALT0);
 	mxc_iomux_set_pad(MX53_PIN_FEC_CRS_DV,
 			PAD_CTL_HYS_ENABLE | PAD_CTL_PKE_ENABLE);
 }

 #ifdef CONFIG_FSL_ESDHC
 struct fsl_esdhc_cfg esdhc_cfg[2] = {
 	{MMC_SDHC1_BASE_ADDR, 1},
 	{MMC_SDHC3_BASE_ADDR, 1},
 };

 int board_mmc_getcd(struct mmc *mmc)
 {
 	struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
 	int ret;

 	mxc_request_iomux(MX53_PIN_EIM_DA11, IOMUX_CONFIG_ALT1);
 	gpio_direction_input(75);
 	mxc_request_iomux(MX53_PIN_EIM_DA13, IOMUX_CONFIG_ALT1);
 	gpio_direction_input(77);

 	if (cfg->esdhc_base == MMC_SDHC1_BASE_ADDR)
 		ret = !gpio_get_value(77); /* GPIO3_13 */
 	else
 		ret = !gpio_get_value(75); /* GPIO3_11 */

 	return ret;
 }

 int board_mmc_init(bd_t *bis)
 {
 	u32 index;
 	s32 status = 0;

 	for (index = 0; index < CONFIG_SYS_FSL_ESDHC_NUM; index++) {
 		switch (index) {
 		case 0:
 			mxc_request_iomux(MX53_PIN_SD1_CMD, IOMUX_CONFIG_ALT0);
 			mxc_request_iomux(MX53_PIN_SD1_CLK, IOMUX_CONFIG_ALT0);
 			mxc_request_iomux(MX53_PIN_SD1_DATA0,
 						IOMUX_CONFIG_ALT0);
 			mxc_request_iomux(MX53_PIN_SD1_DATA1,
 						IOMUX_CONFIG_ALT0);
 			mxc_request_iomux(MX53_PIN_SD1_DATA2,
 						IOMUX_CONFIG_ALT0);
 			mxc_request_iomux(MX53_PIN_SD1_DATA3,
 						IOMUX_CONFIG_ALT0);
 			mxc_request_iomux(MX53_PIN_EIM_DA13,
 						IOMUX_CONFIG_ALT1);

 			mxc_iomux_set_pad(MX53_PIN_SD1_CMD,
 				PAD_CTL_HYS_ENABLE | PAD_CTL_DRV_HIGH |
 				PAD_CTL_PUE_PULL | PAD_CTL_PKE_ENABLE |
 				PAD_CTL_HYS_ENABLE | PAD_CTL_100K_PU);
 			mxc_iomux_set_pad(MX53_PIN_SD1_CLK,
 				PAD_CTL_PUE_PULL | PAD_CTL_PKE_ENABLE |
 				PAD_CTL_HYS_ENABLE | PAD_CTL_47K_PU |
 				PAD_CTL_DRV_HIGH);
 			mxc_iomux_set_pad(MX53_PIN_SD1_DATA0,
 				PAD_CTL_HYS_ENABLE | PAD_CTL_DRV_HIGH |
 				PAD_CTL_PUE_PULL | PAD_CTL_PKE_ENABLE |
 				PAD_CTL_HYS_ENABLE | PAD_CTL_47K_PU);
 			mxc_iomux_set_pad(MX53_PIN_SD1_DATA1,
 				PAD_CTL_HYS_ENABLE | PAD_CTL_DRV_HIGH |
 				PAD_CTL_PUE_PULL | PAD_CTL_PKE_ENABLE |
 				PAD_CTL_HYS_ENABLE | PAD_CTL_47K_PU);
 			mxc_iomux_set_pad(MX53_PIN_SD1_DATA2,
 				PAD_CTL_HYS_ENABLE | PAD_CTL_DRV_HIGH |
 				PAD_CTL_PUE_PULL | PAD_CTL_PKE_ENABLE |
 				PAD_CTL_HYS_ENABLE | PAD_CTL_47K_PU);
 			mxc_iomux_set_pad(MX53_PIN_SD1_DATA3,
 				PAD_CTL_HYS_ENABLE | PAD_CTL_DRV_HIGH |
 				PAD_CTL_PUE_PULL | PAD_CTL_PKE_ENABLE |
 				PAD_CTL_HYS_ENABLE | PAD_CTL_47K_PU);
 			break;
 		case 1:
 			mxc_request_iomux(MX53_PIN_ATA_RESET_B,
 						IOMUX_CONFIG_ALT2);
 			mxc_request_iomux(MX53_PIN_ATA_IORDY,
 						IOMUX_CONFIG_ALT2);
 			mxc_request_iomux(MX53_PIN_ATA_DATA8,
 						IOMUX_CONFIG_ALT4);
 			mxc_request_iomux(MX53_PIN_ATA_DATA9,
 						IOMUX_CONFIG_ALT4);
 			mxc_request_iomux(MX53_PIN_ATA_DATA10,
 						IOMUX_CONFIG_ALT4);
 			mxc_request_iomux(MX53_PIN_ATA_DATA11,
 						IOMUX_CONFIG_ALT4);
 			mxc_request_iomux(MX53_PIN_ATA_DATA0,
 						IOMUX_CONFIG_ALT4);
 			mxc_request_iomux(MX53_PIN_ATA_DATA1,
 						IOMUX_CONFIG_ALT4);
 			mxc_request_iomux(MX53_PIN_ATA_DATA2,
 						IOMUX_CONFIG_ALT4);
 			mxc_request_iomux(MX53_PIN_ATA_DATA3,
 						IOMUX_CONFIG_ALT4);
 			mxc_request_iomux(MX53_PIN_EIM_DA11,
 						IOMUX_CONFIG_ALT1);

 			mxc_iomux_set_pad(MX53_PIN_ATA_RESET_B,
 				PAD_CTL_HYS_ENABLE | PAD_CTL_DRV_HIGH |
 				PAD_CTL_PUE_PULL | PAD_CTL_PKE_ENABLE |
 				PAD_CTL_HYS_ENABLE | PAD_CTL_100K_PU);
 			mxc_iomux_set_pad(MX53_PIN_ATA_IORDY,
 				PAD_CTL_PUE_PULL | PAD_CTL_PKE_ENABLE |
 				PAD_CTL_HYS_ENABLE | PAD_CTL_47K_PU |
 				PAD_CTL_DRV_HIGH);
 			mxc_iomux_set_pad(MX53_PIN_ATA_DATA8,
 				PAD_CTL_HYS_ENABLE | PAD_CTL_DRV_HIGH |
 				PAD_CTL_PUE_PULL | PAD_CTL_PKE_ENABLE |
 				PAD_CTL_HYS_ENABLE | PAD_CTL_47K_PU);
 			mxc_iomux_set_pad(MX53_PIN_ATA_DATA9,
 				PAD_CTL_HYS_ENABLE | PAD_CTL_DRV_HIGH |
 				PAD_CTL_PUE_PULL | PAD_CTL_PKE_ENABLE |
 				PAD_CTL_HYS_ENABLE | PAD_CTL_47K_PU);
 			mxc_iomux_set_pad(MX53_PIN_ATA_DATA10,
 				PAD_CTL_HYS_ENABLE | PAD_CTL_DRV_HIGH |
 				PAD_CTL_PUE_PULL | PAD_CTL_PKE_ENABLE |
 				PAD_CTL_HYS_ENABLE | PAD_CTL_47K_PU);
 			mxc_iomux_set_pad(MX53_PIN_ATA_DATA11,
 				PAD_CTL_HYS_ENABLE | PAD_CTL_DRV_HIGH |
 				PAD_CTL_PUE_PULL | PAD_CTL_PKE_ENABLE |
 				PAD_CTL_HYS_ENABLE | PAD_CTL_47K_PU);
 			mxc_iomux_set_pad(MX53_PIN_ATA_DATA0,
 				PAD_CTL_HYS_ENABLE | PAD_CTL_DRV_HIGH |
 				PAD_CTL_PUE_PULL | PAD_CTL_PKE_ENABLE |
 				PAD_CTL_HYS_ENABLE | PAD_CTL_47K_PU);
 			mxc_iomux_set_pad(MX53_PIN_ATA_DATA1,
 				PAD_CTL_HYS_ENABLE | PAD_CTL_DRV_HIGH |
 				PAD_CTL_PUE_PULL | PAD_CTL_PKE_ENABLE |
 				PAD_CTL_HYS_ENABLE | PAD_CTL_47K_PU);
 			mxc_iomux_set_pad(MX53_PIN_ATA_DATA2,
 				PAD_CTL_HYS_ENABLE | PAD_CTL_DRV_HIGH |
 				PAD_CTL_PUE_PULL | PAD_CTL_PKE_ENABLE |
 				PAD_CTL_HYS_ENABLE | PAD_CTL_47K_PU);
 			mxc_iomux_set_pad(MX53_PIN_ATA_DATA3,
 				PAD_CTL_HYS_ENABLE | PAD_CTL_DRV_HIGH |
 				PAD_CTL_PUE_PULL | PAD_CTL_PKE_ENABLE |
 				PAD_CTL_HYS_ENABLE | PAD_CTL_47K_PU);

 			break;
 		default:
 			printf("Warning: you configured more ESDHC controller"
 				"(%d) as supported by the board(2)\n",
 				CONFIG_SYS_FSL_ESDHC_NUM);
 			return status;
 		}
 		status |= fsl_esdhc_initialize(bis, &esdhc_cfg[index]);
 	}

 	return status;
 }
 #endif

 int board_early_init_f(void)
 {
 	setup_iomux_uart();
 	setup_iomux_fec();

 	return 0;
 }

 int board_init(void)
 {
 	gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;

 	return 0;
 }

 int checkboard(void)
 {
 	puts("Board: MX53 LOCO\n");

 	return 0;
 }
	/*
	* Copyright (C) 2011 Freescale Semiconductor, Inc.
	* Jason Liu <r64343@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.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program; if not, write to the Free Software
	* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
	* MA 02111-1307 USA
	*/

	#include <common.h>
	#include <asm/io.h>
	#include <asm/arch/imx-regs.h>
	#include <asm/arch/mx5x_pins.h>
	#include <asm/arch/sys_proto.h>
	#include <asm/arch/crm_regs.h>
	#include <asm/arch/iomux.h>
	#include <asm/arch/clock.h>
	#include <asm/errno.h>
	#include <netdev.h>
	#include <i2c.h>
	#include <mmc.h>
	#include <fsl_esdhc.h>
	#include <asm/gpio.h>

	DECLARE_GLOBAL_DATA_PTR;

	int dram_init(void)
	{
	u32 size1, size2;

	size1 = get_ram_size((void *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE);
	size2 = get_ram_size((void *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE);

	gd->ram_size = size1 + size2;

	return 0;
	}
	void dram_init_banksize(void)
	{
	gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
	gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;

	gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
	gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE;
	}

	static void setup_iomux_uart(void)
	{
	/* UART1 RXD */
	mxc_request_iomux(MX53_PIN_CSI0_D11, IOMUX_CONFIG_ALT2);
	mxc_iomux_set_pad(MX53_PIN_CSI0_D11,
	PAD_CTL_HYS_ENABLE \| PAD_CTL_DRV_HIGH \|
	PAD_CTL_PUE_PULL \| PAD_CTL_PKE_ENABLE \|
	PAD_CTL_HYS_ENABLE \| PAD_CTL_100K_PU \|
	PAD_CTL_ODE_OPENDRAIN_ENABLE);
	mxc_iomux_set_input(MX53_UART1_IPP_UART_RXD_MUX_SELECT_INPUT, 0x1);

	/* UART1 TXD */
	mxc_request_iomux(MX53_PIN_CSI0_D10, IOMUX_CONFIG_ALT2);
	mxc_iomux_set_pad(MX53_PIN_CSI0_D10,
	PAD_CTL_HYS_ENABLE \| PAD_CTL_DRV_HIGH \|
	PAD_CTL_PUE_PULL \| PAD_CTL_PKE_ENABLE \|
	PAD_CTL_HYS_ENABLE \| PAD_CTL_100K_PU \|
	PAD_CTL_ODE_OPENDRAIN_ENABLE);
	}

	#ifdef CONFIG_USB_EHCI_MX5
	int board_ehci_hcd_init(int port)
	{
	/* request VBUS power enable pin, GPIO[8}, gpio7 */
	mxc_request_iomux(MX53_PIN_ATA_DA_2, IOMUX_CONFIG_ALT1);
	gpio_direction_output(IOMUX_TO_GPIO(MX53_PIN_ATA_DA_2), 0);
	gpio_set_value(IOMUX_TO_GPIO(MX53_PIN_ATA_DA_2), 1);
	return 0;
	}
	#endif

	static void setup_iomux_fec(void)
	{
	/FEC_MDIO/
	mxc_request_iomux(MX53_PIN_FEC_MDIO, IOMUX_CONFIG_ALT0);
	mxc_iomux_set_pad(MX53_PIN_FEC_MDIO,
	PAD_CTL_HYS_ENABLE \| PAD_CTL_DRV_HIGH \|
	PAD_CTL_PUE_PULL \| PAD_CTL_PKE_ENABLE \|
	PAD_CTL_22K_PU \| PAD_CTL_ODE_OPENDRAIN_ENABLE);
	mxc_iomux_set_input(MX53_FEC_FEC_MDI_SELECT_INPUT, 0x1);

	/FEC_MDC/
	mxc_request_iomux(MX53_PIN_FEC_MDC, IOMUX_CONFIG_ALT0);
	mxc_iomux_set_pad(MX53_PIN_FEC_MDC, PAD_CTL_DRV_HIGH);

	/* FEC RXD1 */
	mxc_request_iomux(MX53_PIN_FEC_RXD1, IOMUX_CONFIG_ALT0);
	mxc_iomux_set_pad(MX53_PIN_FEC_RXD1,
	PAD_CTL_HYS_ENABLE \| PAD_CTL_PKE_ENABLE);

	/* FEC RXD0 */
	mxc_request_iomux(MX53_PIN_FEC_RXD0, IOMUX_CONFIG_ALT0);
	mxc_iomux_set_pad(MX53_PIN_FEC_RXD0,
	PAD_CTL_HYS_ENABLE \| PAD_CTL_PKE_ENABLE);

	/* FEC TXD1 */
	mxc_request_iomux(MX53_PIN_FEC_TXD1, IOMUX_CONFIG_ALT0);
	mxc_iomux_set_pad(MX53_PIN_FEC_TXD1, PAD_CTL_DRV_HIGH);

	/* FEC TXD0 */
	mxc_request_iomux(MX53_PIN_FEC_TXD0, IOMUX_CONFIG_ALT0);
	mxc_iomux_set_pad(MX53_PIN_FEC_TXD0, PAD_CTL_DRV_HIGH);

	/* FEC TX_EN */
	mxc_request_iomux(MX53_PIN_FEC_TX_EN, IOMUX_CONFIG_ALT0);
	mxc_iomux_set_pad(MX53_PIN_FEC_TX_EN, PAD_CTL_DRV_HIGH);

	/* FEC TX_CLK */
	mxc_request_iomux(MX53_PIN_FEC_REF_CLK, IOMUX_CONFIG_ALT0);
	mxc_iomux_set_pad(MX53_PIN_FEC_REF_CLK,
	PAD_CTL_HYS_ENABLE \| PAD_CTL_PKE_ENABLE);

	/* FEC RX_ER */
	mxc_request_iomux(MX53_PIN_FEC_RX_ER, IOMUX_CONFIG_ALT0);
	mxc_iomux_set_pad(MX53_PIN_FEC_RX_ER,
	PAD_CTL_HYS_ENABLE \| PAD_CTL_PKE_ENABLE);

	/* FEC CRS */
	mxc_request_iomux(MX53_PIN_FEC_CRS_DV, IOMUX_CONFIG_ALT0);
	mxc_iomux_set_pad(MX53_PIN_FEC_CRS_DV,
	PAD_CTL_HYS_ENABLE \| PAD_CTL_PKE_ENABLE);
	}

	#ifdef CONFIG_FSL_ESDHC
	struct fsl_esdhc_cfg esdhc_cfg[2] = {
	{MMC_SDHC1_BASE_ADDR, 1},
	{MMC_SDHC3_BASE_ADDR, 1},
	};

	int board_mmc_getcd(struct mmc *mmc)
	{
	struct fsl_esdhc_cfg cfg = (struct fsl_esdhc_cfg )mmc->priv;
	int ret;

	mxc_request_iomux(MX53_PIN_EIM_DA11, IOMUX_CONFIG_ALT1);
	gpio_direction_input(75);
	mxc_request_iomux(MX53_PIN_EIM_DA13, IOMUX_CONFIG_ALT1);
	gpio_direction_input(77);

	if (cfg->esdhc_base == MMC_SDHC1_BASE_ADDR)
	ret = !gpio_get_value(77); /* GPIO3_13 */
	else
	ret = !gpio_get_value(75); /* GPIO3_11 */

	return ret;
	}

	int board_mmc_init(bd_t *bis)
	{
	u32 index;
	s32 status = 0;

	for (index = 0; index < CONFIG_SYS_FSL_ESDHC_NUM; index++) {
	switch (index) {
	case 0:
	mxc_request_iomux(MX53_PIN_SD1_CMD, IOMUX_CONFIG_ALT0);
	mxc_request_iomux(MX53_PIN_SD1_CLK, IOMUX_CONFIG_ALT0);
	mxc_request_iomux(MX53_PIN_SD1_DATA0,
	IOMUX_CONFIG_ALT0);
	mxc_request_iomux(MX53_PIN_SD1_DATA1,
	IOMUX_CONFIG_ALT0);
	mxc_request_iomux(MX53_PIN_SD1_DATA2,
	IOMUX_CONFIG_ALT0);
	mxc_request_iomux(MX53_PIN_SD1_DATA3,
	IOMUX_CONFIG_ALT0);
	mxc_request_iomux(MX53_PIN_EIM_DA13,
	IOMUX_CONFIG_ALT1);

	mxc_iomux_set_pad(MX53_PIN_SD1_CMD,
	PAD_CTL_HYS_ENABLE \| PAD_CTL_DRV_HIGH \|
	PAD_CTL_PUE_PULL \| PAD_CTL_PKE_ENABLE \|
	PAD_CTL_HYS_ENABLE \| PAD_CTL_100K_PU);
	mxc_iomux_set_pad(MX53_PIN_SD1_CLK,
	PAD_CTL_PUE_PULL \| PAD_CTL_PKE_ENABLE \|
	PAD_CTL_HYS_ENABLE \| PAD_CTL_47K_PU \|
	PAD_CTL_DRV_HIGH);
	mxc_iomux_set_pad(MX53_PIN_SD1_DATA0,
	PAD_CTL_HYS_ENABLE \| PAD_CTL_DRV_HIGH \|
	PAD_CTL_PUE_PULL \| PAD_CTL_PKE_ENABLE \|
	PAD_CTL_HYS_ENABLE \| PAD_CTL_47K_PU);
	mxc_iomux_set_pad(MX53_PIN_SD1_DATA1,
	PAD_CTL_HYS_ENABLE \| PAD_CTL_DRV_HIGH \|
	PAD_CTL_PUE_PULL \| PAD_CTL_PKE_ENABLE \|
	PAD_CTL_HYS_ENABLE \| PAD_CTL_47K_PU);
	mxc_iomux_set_pad(MX53_PIN_SD1_DATA2,
	PAD_CTL_HYS_ENABLE \| PAD_CTL_DRV_HIGH \|
	PAD_CTL_PUE_PULL \| PAD_CTL_PKE_ENABLE \|
	PAD_CTL_HYS_ENABLE \| PAD_CTL_47K_PU);
	mxc_iomux_set_pad(MX53_PIN_SD1_DATA3,
	PAD_CTL_HYS_ENABLE \| PAD_CTL_DRV_HIGH \|
	PAD_CTL_PUE_PULL \| PAD_CTL_PKE_ENABLE \|
	PAD_CTL_HYS_ENABLE \| PAD_CTL_47K_PU);
	break;
	case 1:
	mxc_request_iomux(MX53_PIN_ATA_RESET_B,
	IOMUX_CONFIG_ALT2);
	mxc_request_iomux(MX53_PIN_ATA_IORDY,
	IOMUX_CONFIG_ALT2);
	mxc_request_iomux(MX53_PIN_ATA_DATA8,
	IOMUX_CONFIG_ALT4);
	mxc_request_iomux(MX53_PIN_ATA_DATA9,
	IOMUX_CONFIG_ALT4);
	mxc_request_iomux(MX53_PIN_ATA_DATA10,
	IOMUX_CONFIG_ALT4);
	mxc_request_iomux(MX53_PIN_ATA_DATA11,
	IOMUX_CONFIG_ALT4);
	mxc_request_iomux(MX53_PIN_ATA_DATA0,
	IOMUX_CONFIG_ALT4);
	mxc_request_iomux(MX53_PIN_ATA_DATA1,
	IOMUX_CONFIG_ALT4);
	mxc_request_iomux(MX53_PIN_ATA_DATA2,
	IOMUX_CONFIG_ALT4);
	mxc_request_iomux(MX53_PIN_ATA_DATA3,
	IOMUX_CONFIG_ALT4);
	mxc_request_iomux(MX53_PIN_EIM_DA11,
	IOMUX_CONFIG_ALT1);

	mxc_iomux_set_pad(MX53_PIN_ATA_RESET_B,
	PAD_CTL_HYS_ENABLE \| PAD_CTL_DRV_HIGH \|
	PAD_CTL_PUE_PULL \| PAD_CTL_PKE_ENABLE \|
	PAD_CTL_HYS_ENABLE \| PAD_CTL_100K_PU);
	mxc_iomux_set_pad(MX53_PIN_ATA_IORDY,
	PAD_CTL_PUE_PULL \| PAD_CTL_PKE_ENABLE \|
	PAD_CTL_HYS_ENABLE \| PAD_CTL_47K_PU \|
	PAD_CTL_DRV_HIGH);
	mxc_iomux_set_pad(MX53_PIN_ATA_DATA8,
	PAD_CTL_HYS_ENABLE \| PAD_CTL_DRV_HIGH \|
	PAD_CTL_PUE_PULL \| PAD_CTL_PKE_ENABLE \|
	PAD_CTL_HYS_ENABLE \| PAD_CTL_47K_PU);
	mxc_iomux_set_pad(MX53_PIN_ATA_DATA9,
	PAD_CTL_HYS_ENABLE \| PAD_CTL_DRV_HIGH \|
	PAD_CTL_PUE_PULL \| PAD_CTL_PKE_ENABLE \|
	PAD_CTL_HYS_ENABLE \| PAD_CTL_47K_PU);
	mxc_iomux_set_pad(MX53_PIN_ATA_DATA10,
	PAD_CTL_HYS_ENABLE \| PAD_CTL_DRV_HIGH \|
	PAD_CTL_PUE_PULL \| PAD_CTL_PKE_ENABLE \|
	PAD_CTL_HYS_ENABLE \| PAD_CTL_47K_PU);
	mxc_iomux_set_pad(MX53_PIN_ATA_DATA11,
	PAD_CTL_HYS_ENABLE \| PAD_CTL_DRV_HIGH \|
	PAD_CTL_PUE_PULL \| PAD_CTL_PKE_ENABLE \|
	PAD_CTL_HYS_ENABLE \| PAD_CTL_47K_PU);
	mxc_iomux_set_pad(MX53_PIN_ATA_DATA0,
	PAD_CTL_HYS_ENABLE \| PAD_CTL_DRV_HIGH \|
	PAD_CTL_PUE_PULL \| PAD_CTL_PKE_ENABLE \|
	PAD_CTL_HYS_ENABLE \| PAD_CTL_47K_PU);
	mxc_iomux_set_pad(MX53_PIN_ATA_DATA1,
	PAD_CTL_HYS_ENABLE \| PAD_CTL_DRV_HIGH \|
	PAD_CTL_PUE_PULL \| PAD_CTL_PKE_ENABLE \|
	PAD_CTL_HYS_ENABLE \| PAD_CTL_47K_PU);
	mxc_iomux_set_pad(MX53_PIN_ATA_DATA2,
	PAD_CTL_HYS_ENABLE \| PAD_CTL_DRV_HIGH \|
	PAD_CTL_PUE_PULL \| PAD_CTL_PKE_ENABLE \|
	PAD_CTL_HYS_ENABLE \| PAD_CTL_47K_PU);
	mxc_iomux_set_pad(MX53_PIN_ATA_DATA3,
	PAD_CTL_HYS_ENABLE \| PAD_CTL_DRV_HIGH \|
	PAD_CTL_PUE_PULL \| PAD_CTL_PKE_ENABLE \|
	PAD_CTL_HYS_ENABLE \| PAD_CTL_47K_PU);

	break;
	default:
	printf("Warning: you configured more ESDHC controller"
	"(%d) as supported by the board(2)\n",
	CONFIG_SYS_FSL_ESDHC_NUM);
	return status;
	}
	status \|= fsl_esdhc_initialize(bis, &esdhc_cfg[index]);
	}

	return status;
	}
	#endif

	int board_early_init_f(void)
	{
	setup_iomux_uart();
	setup_iomux_fec();

	return 0;
	}

	int board_init(void)
	{
	gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;

	return 0;
	}

	int checkboard(void)
	{
	puts("Board: MX53 LOCO\n");

	return 0;
	}