mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-21 02:33:07 +00:00
32 lines
810 B
C
32 lines
810 B
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* (C) Copyright 2013-2019
|
|
* NVIDIA Corporation <www.nvidia.com>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <i2c.h>
|
|
#include <log.h>
|
|
#include <asm/arch/gpio.h>
|
|
#include <asm/arch/pinmux.h>
|
|
#include "../p2571/max77620_init.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);
|
|
}
|