u-boot-brain/board/freescale/mx53smd/mx53smd.c

/*
 * (C) Copyright 2011 Freescale Semiconductor, Inc.
 *
 * 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/errno.h>
#include <netdev.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);
}

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[1] = {
	{MMC_SDHC1_BASE_ADDR, 1},
};

int board_mmc_getcd(struct mmc *mmc)
{
	mxc_request_iomux(MX53_PIN_EIM_DA13, IOMUX_CONFIG_ALT1);
	return !gpio_get_value(77); /* GPIO3_13 */
}

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;

		default:
			printf("Warning: you configured more ESDHC controller"
				"(%d) as supported by the board(1)\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)
{
	/* address of boot parameters */
	gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;

	return 0;
}

int checkboard(void)
{
	puts("Board: MX53SMD\n");

	return 0;
}