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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 <i2c.h>
#include <asm/io.h>
#include <asm/arch/tegra20.h>
#include <asm/arch/clock.h>
#include <asm/arch/funcmux.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 Whistler - no UART-related GPIOs.
*/
void gpio_config_uart(void)
{
}
/*
* 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_SDMMC3, FUNCMUX_SDMMC3_SDB_SLXA_8BIT);
funcmux_select(PERIPH_ID_SDMMC4, FUNCMUX_SDMMC4_ATC_ATD_8BIT);
}
/* this is a weak define that we are overriding */
int board_mmc_init(bd_t *bd)
{
uchar val;
int ret;
debug("board_mmc_init called\n");
/* Turn on MAX8907B LDO12 to 2.8V for J40 power */
ret = i2c_set_bus_num(0);
if (ret)
printf("i2c_set_bus_num failed: %d\n", ret);
val = 0x29;
ret = i2c_write(0x3c, 0x46, 1, &val, 1);
if (ret)
printf("i2c_write 0 0x3c 0x46 failed: %d\n", ret);
val = 0x00;
ret = i2c_write(0x3c, 0x45, 1, &val, 1);
if (ret)
printf("i2c_write 0 0x3c 0x45 failed: %d\n", ret);
val = 0x1f;
ret = i2c_write(0x3c, 0x44, 1, &val, 1);
if (ret)
printf("i2c_write 0 0x3c 0x44 failed: %d\n", ret);
/* Enable muxes, etc. for SDMMC controllers */
pin_mux_mmc();
/* init dev 0 (SDMMC4), (J29 "HSMMC") with 8-bit bus */
tegra20_mmc_init(0, 8, -1, -1);
/* init dev 1 (SDMMC3), (J40 "SDIO3") with 8-bit bus */
tegra20_mmc_init(1, 8, -1, -1);
return 0;
}
/* this is a weak define that we are overriding */
void pin_mux_usb(void)
{
uchar val;
int ret;
/*
* This is a hack. This should be represented in DT using the
* vbus-gpio property. However, U-Boot's DT support doesn't
* support any GPIO controller other than the Tegra's yet.
*/
/* Turn on TAC6416's GPIO 0+1 for USB1/3's VBUS */
ret = i2c_set_bus_num(0);
if (ret)
printf("i2c_set_bus_num failed: %d\n", ret);
val = 0x03;
ret = i2c_write(0x20, 2, 1, &val, 1);
if (ret)
printf("i2c_write 0 0x20 2 failed: %d\n", ret);
val = 0xfc;
ret = i2c_write(0x20, 6, 1, &val, 1);
if (ret)
printf("i2c_write 0 0x20 6 failed: %d\n", ret);
}
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