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/*
* (C) Copyright 2010-2012
* NVIDIA Corporation <www.nvidia.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/tegra.h>
#include <asm/arch/clock.h>
#include <asm/arch/funcmux.h>
#include <asm/arch/pinmux.h>
#include <asm/arch-tegra/mmc.h>
#include <asm/gpio.h>
#include <i2c.h>
#ifdef CONFIG_TEGRA_MMC
#include <mmc.h>
#endif
void pin_mux_usb(void)
{
/*
* USB1 internal/external mux GPIO, which masquerades as a VBUS GPIO
* in the current device tree.
*/
pinmux_tristate_disable(PINGRP_UAC);
}
void pin_mux_spi(void)
{
funcmux_select(PERIPH_ID_SPI1, FUNCMUX_SPI1_GMC_GMD);
}
/*
* Routine: pin_mux_mmc
* Description: setup the pin muxes/tristate values for the SDMMC(s)
*/
static void pin_mux_mmc(void)
{
funcmux_select(PERIPH_ID_SDMMC1, FUNCMUX_SDMMC1_SDIO1_4BIT);
funcmux_select(PERIPH_ID_SDMMC4, FUNCMUX_SDMMC4_ATB_GMA_4_BIT);
/* For CD GPIO PP1 */
pinmux_tristate_disable(PINGRP_DAP3);
}
/* 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();
/* init dev 0 (SDMMC4), (micro-SD slot) with 4-bit bus */
tegra_mmc_init(0, 4, -1, GPIO_PP1);
/* init dev 3 (SDMMC1), (SD slot) with 4-bit bus */
tegra_mmc_init(3, 4, -1, -1);
return 0;
}
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