| // 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); |
| } |