projects / thirdparty / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 83d290c5 | 1 | // SPDX-License-Identifier: GPL-2.0 |
| 10a03382 SW |
2 | /* |
| 3 | * Copyright (c) 2016, NVIDIA CORPORATION | |
| 10a03382 SW |
4 | */ |
| 5 | ||
| 6 | #include <common.h> | |
| 45d85f08 SW |
7 | #include <i2c.h> |
| 8 | #include "../p2571/max77620_init.h" | |
| 9 | ||
| 10 | int tegra_board_init(void) | |
| 11 | { | |
| 12 | struct udevice *dev; | |
| 13 | uchar val; | |
| 14 | int ret; | |
| 15 | ||
| 16 | /* Turn on MAX77620 LDO3 to 3.3V for SD card power */ | |
| 17 | debug("%s: Set LDO3 for VDDIO_SDMMC_AP power to 3.3V\n", __func__); | |
| 18 | ret = i2c_get_chip_for_busnum(0, MAX77620_I2C_ADDR_7BIT, 1, &dev); | |
| 19 | if (ret) { | |
| 20 | printf("%s: Cannot find MAX77620 I2C chip\n", __func__); | |
| 21 | return ret; | |
| 22 | } | |
| 23 | /* 0xF2 for 3.3v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */ | |
| 24 | val = 0xF2; | |
| 25 | ret = dm_i2c_write(dev, MAX77620_CNFG1_L3_REG, &val, 1); | |
| 26 | if (ret) { | |
| 27 | printf("i2c_write 0 0x3c 0x27 failed: %d\n", ret); | |
| 28 | return ret; | |
| 29 | } | |
| 30 | ||
| 31 | return 0; | |
| 32 | } | |
| a6bb0084 SW |
33 | |
| 34 | int tegra_pcie_board_init(void) | |
| 35 | { | |
| 36 | struct udevice *dev; | |
| 37 | uchar val; | |
| 38 | int ret; | |
| 39 | ||
| 40 | /* Turn on MAX77620 LDO7 to 1.05V for PEX power */ | |
| 41 | debug("%s: Set LDO7 for PEX power to 1.05V\n", __func__); | |
| 42 | ret = i2c_get_chip_for_busnum(0, MAX77620_I2C_ADDR_7BIT, 1, &dev); | |
| 43 | if (ret) { | |
| 44 | printf("%s: Cannot find MAX77620 I2C chip\n", __func__); | |
| 45 | return -1; | |
| 46 | } | |
| 47 | /* 0xC5 for 1.05v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */ | |
| 48 | val = 0xC5; | |
| 49 | ret = dm_i2c_write(dev, MAX77620_CNFG1_L7_REG, &val, 1); | |
| 50 | if (ret) | |
| 51 | printf("i2c_write 0 0x3c 0x31 failed: %d\n", ret); | |
| 52 | ||
| 53 | return 0; | |
| 54 | } |