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/*
* Copyright (c) 2010-2012, NVIDIA CORPORATION. All rights reserved.
*
* 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 and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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/tegra20.h>
#include <asm/arch/pinmux.h>
#include <asm/arch/mmc.h>
#include <asm/gpio.h>
#ifdef CONFIG_TEGRA_MMC
#include <mmc.h>
#endif
/*
* Routine: gpio_config_uart
* Description: Does nothing on Paz00 - no conflict w/SPI.
*/
void gpio_config_uart(void)
{
}
#ifdef CONFIG_TEGRA_MMC
/*
* Routine: pin_mux_mmc
* Description: setup the pin muxes/tristate values for the SDMMC(s)
*/
static void pin_mux_mmc(void)
{
/* SDMMC4: config 3, x8 on 2nd set of pins */
pinmux_set_func(PINGRP_ATB, PMUX_FUNC_SDIO4);
pinmux_set_func(PINGRP_GMA, PMUX_FUNC_SDIO4);
pinmux_set_func(PINGRP_GME, PMUX_FUNC_SDIO4);
pinmux_tristate_disable(PINGRP_ATB);
pinmux_tristate_disable(PINGRP_GMA);
pinmux_tristate_disable(PINGRP_GME);
/* SDIO1: SDIO1_CLK, SDIO1_CMD, SDIO1_DAT[3:0] */
pinmux_set_func(PINGRP_SDIO1, PMUX_FUNC_SDIO1);
pinmux_tristate_disable(PINGRP_SDIO1);
/* For power GPIO PV1 */
pinmux_tristate_disable(PINGRP_UAC);
/* For CD GPIO PV5 */
pinmux_tristate_disable(PINGRP_GPV);
}
/* this is a weak define that we are overriding */
int board_mmc_init(bd_t *bd)
{
debug("board_mmc_init called\n");
/* Enable muxes, etc. for SDMMC controllers */
pin_mux_mmc();
debug("board_mmc_init: init eMMC\n");
/* init dev 0, eMMC chip, with 4-bit bus */
/* The board has an 8-bit bus, but 8-bit doesn't work yet */
tegra20_mmc_init(0, 4, -1, -1);
debug("board_mmc_init: init SD slot\n");
/* init dev 3, SD slot, with 4-bit bus */
tegra20_mmc_init(3, 4, GPIO_PV1, GPIO_PV5);
return 0;
}
#endif
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