| Tom Rini | 10e4779 | 2018-05-06 17:58:06 -0400 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| Stephen Warren | 1b54a5e | 2015-08-05 11:52:07 -0600 | [diff] [blame] | 2 | /* |
| Tom Warren | 547bd33 | 2020-03-26 16:10:11 -0700 | [diff] [blame] | 3 | * (C) Copyright 2013-2019 |
| Stephen Warren | 1b54a5e | 2015-08-05 11:52:07 -0600 | [diff] [blame] | 4 | * NVIDIA Corporation <www.nvidia.com> |
| Stephen Warren | 1b54a5e | 2015-08-05 11:52:07 -0600 | [diff] [blame] | 5 | */ |
| 6 | |
| 7 | #include <common.h> |
| 8 | #include <i2c.h> |
| Simon Glass | 0f2af88 | 2020-05-10 11:40:05 -0600 | [diff] [blame] | 9 | #include <log.h> |
| Stephen Warren | 1b54a5e | 2015-08-05 11:52:07 -0600 | [diff] [blame] | 10 | #include <asm/arch/gpio.h> |
| 11 | #include <asm/arch/pinmux.h> |
| 12 | #include "../p2571/max77620_init.h" |
| Stephen Warren | 1b54a5e | 2015-08-05 11:52:07 -0600 | [diff] [blame] | 13 | |
| 14 | void pin_mux_mmc(void) |
| 15 | { |
| 16 | struct udevice *dev; |
| 17 | uchar val; |
| 18 | int ret; |
| 19 | |
| 20 | /* Turn on MAX77620 LDO2 to 3.3V for SD card power */ |
| 21 | debug("%s: Set LDO2 for VDDIO_SDMMC_AP power to 3.3V\n", __func__); |
| 22 | ret = i2c_get_chip_for_busnum(0, MAX77620_I2C_ADDR_7BIT, 1, &dev); |
| 23 | if (ret) { |
| 24 | printf("%s: Cannot find MAX77620 I2C chip\n", __func__); |
| 25 | return; |
| 26 | } |
| 27 | /* 0xF2 for 3.3v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */ |
| 28 | val = 0xF2; |
| 29 | ret = dm_i2c_write(dev, MAX77620_CNFG1_L2_REG, &val, 1); |
| 30 | if (ret) |
| 31 | printf("i2c_write 0 0x3c 0x27 failed: %d\n", ret); |
| 32 | } |