| // SPDX-License-Identifier: GPL-2.0 |
| /* |
| * Copyright (c) 2016, NVIDIA CORPORATION |
| */ |
| |
| #include <common.h> |
| #include <i2c.h> |
| #include "../p2571/max77620_init.h" |
| |
| void pin_mux_mmc(void) |
| { |
| struct udevice *dev; |
| uchar val; |
| int ret; |
| |
| /* Turn on MAX77620 LDO3 to 3.3V for SD card power */ |
| debug("%s: Set LDO3 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_L3_REG, &val, 1); |
| if (ret) { |
| printf("i2c_write 0 0x3c 0x27 failed: %d\n", ret); |
| return; |
| } |
| } |
| |
| #ifdef CONFIG_PCI_TEGRA |
| int tegra_pcie_board_init(void) |
| { |
| struct udevice *dev; |
| uchar val; |
| int ret; |
| |
| /* Turn on MAX77620 LDO7 to 1.05V for PEX power */ |
| debug("%s: Set LDO7 for PEX power to 1.05V\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 -1; |
| } |
| /* 0xC5 for 1.05v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */ |
| val = 0xC5; |
| ret = dm_i2c_write(dev, MAX77620_CNFG1_L7_REG, &val, 1); |
| if (ret) |
| printf("i2c_write 0 0x3c 0x31 failed: %d\n", ret); |
| |
| return 0; |
| } |
| #endif |