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/*
* (C) Copyright 2013-2015
* NVIDIA Corporation <www.nvidia.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <i2c.h>
#include <asm/arch/gpio.h>
#include <asm/arch/pinmux.h>
#include <asm/gpio.h>
#include "max77620_init.h"
#include "pinmux-config-p2571.h"
void pin_mux_mmc(void)
{
struct udevice *dev;
uchar val;
int ret;
/* Turn on MAX77620 LDO2 to 3.3V for SD card power */
debug("%s: Set LDO2 for VDDIO_SDMMC_AP power to 3.3V\n", __func__);
ret = i2c_get_chip_for_busnum(0, MAX77620_I2C_ADDR_7BIT, 1, &dev);
if (ret) {
printf("%s: Cannot find MAX77620 I2C chip\n", __func__);
return;
}
/* 0xF2 for 3.3v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */
val = 0xF2;
ret = dm_i2c_write(dev, MAX77620_CNFG1_L2_REG, &val, 1);
if (ret)
printf("i2c_write 0 0x3c 0x27 failed: %d\n", ret);
}
/*
* Routine: pinmux_init
* Description: Do individual peripheral pinmux configs
*/
void pinmux_init(void)
{
pinmux_clear_tristate_input_clamping();
gpio_config_table(p2571_gpio_inits,
ARRAY_SIZE(p2571_gpio_inits));
pinmux_config_pingrp_table(p2571_pingrps,
ARRAY_SIZE(p2571_pingrps));
pinmux_config_drvgrp_table(p2571_drvgrps,
ARRAY_SIZE(p2571_drvgrps));
}
/*
* Routine: start_cpu_fan
* Description: Enable/start PWM CPU fan on P2571
*/
void start_cpu_fan(void)
{
/* GPIO_PE4 is PS_VDD_FAN_ENABLE */
gpio_request(TEGRA_GPIO(E, 4), "FAN_VDD");
gpio_direction_output(TEGRA_GPIO(E, 4), 1);
}
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