| Tom Rini | 83d290c | 2018-05-06 17:58:06 -0400 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| Stephen Warren | 2573428 | 2015-08-13 22:34:22 -0600 | [diff] [blame] | 2 | /* |
| 3 | * (C) Copyright 2013-2015 |
| 4 | * NVIDIA Corporation <www.nvidia.com> |
| Stephen Warren | 2573428 | 2015-08-13 22:34:22 -0600 | [diff] [blame] | 5 | */ |
| 6 | |
| 7 | #include <common.h> |
| 8 | #include <i2c.h> |
| 9 | #include <asm/arch/gpio.h> |
| 10 | #include <asm/arch/pinmux.h> |
| 11 | #include "../p2571/max77620_init.h" |
| 12 | #include "pinmux-config-p2371-2180.h" |
| 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); |
| Stephen Warren | efbb3d4 | 2016-07-18 13:02:11 -0600 | [diff] [blame] | 32 | |
| 33 | /* Disable LDO4 discharge */ |
| 34 | ret = dm_i2c_read(dev, MAX77620_CNFG2_L4_REG, &val, 1); |
| 35 | if (ret) { |
| 36 | printf("i2c_read 0 0x3c 0x2c failed: %d\n", ret); |
| 37 | } else { |
| 38 | val &= ~BIT(1); /* ADE */ |
| 39 | ret = dm_i2c_write(dev, MAX77620_CNFG2_L4_REG, &val, 1); |
| 40 | if (ret) |
| 41 | printf("i2c_write 0 0x3c 0x2c failed: %d\n", ret); |
| 42 | } |
| 43 | |
| 44 | /* Set MBLPD */ |
| 45 | ret = dm_i2c_read(dev, MAX77620_CNFGGLBL1_REG, &val, 1); |
| 46 | if (ret) { |
| 47 | printf("i2c_write 0 0x3c 0x00 failed: %d\n", ret); |
| 48 | } else { |
| 49 | val |= BIT(6); /* MBLPD */ |
| 50 | ret = dm_i2c_write(dev, MAX77620_CNFGGLBL1_REG, &val, 1); |
| 51 | if (ret) |
| 52 | printf("i2c_write 0 0x3c 0x00 failed: %d\n", ret); |
| 53 | } |
| Stephen Warren | 2573428 | 2015-08-13 22:34:22 -0600 | [diff] [blame] | 54 | } |
| 55 | |
| 56 | /* |
| 57 | * Routine: pinmux_init |
| 58 | * Description: Do individual peripheral pinmux configs |
| 59 | */ |
| 60 | void pinmux_init(void) |
| 61 | { |
| 62 | pinmux_clear_tristate_input_clamping(); |
| 63 | |
| 64 | gpio_config_table(p2371_2180_gpio_inits, |
| 65 | ARRAY_SIZE(p2371_2180_gpio_inits)); |
| 66 | |
| 67 | pinmux_config_pingrp_table(p2371_2180_pingrps, |
| 68 | ARRAY_SIZE(p2371_2180_pingrps)); |
| 69 | |
| 70 | pinmux_config_drvgrp_table(p2371_2180_drvgrps, |
| 71 | ARRAY_SIZE(p2371_2180_drvgrps)); |
| 72 | } |
| Stephen Warren | 019bc62 | 2015-10-05 17:02:40 -0600 | [diff] [blame] | 73 | |
| 74 | #ifdef CONFIG_PCI_TEGRA |
| 75 | int tegra_pcie_board_init(void) |
| 76 | { |
| 77 | struct udevice *dev; |
| 78 | uchar val; |
| 79 | int ret; |
| 80 | |
| 81 | /* Turn on MAX77620 LDO1 to 1.05V for PEX power */ |
| 82 | debug("%s: Set LDO1 for PEX power to 1.05V\n", __func__); |
| 83 | ret = i2c_get_chip_for_busnum(0, MAX77620_I2C_ADDR_7BIT, 1, &dev); |
| 84 | if (ret) { |
| 85 | printf("%s: Cannot find MAX77620 I2C chip\n", __func__); |
| 86 | return -1; |
| 87 | } |
| 88 | /* 0xCA for 1.05v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */ |
| 89 | val = 0xCA; |
| 90 | ret = dm_i2c_write(dev, MAX77620_CNFG1_L1_REG, &val, 1); |
| 91 | if (ret) |
| 92 | printf("i2c_write 0 0x3c 0x25 failed: %d\n", ret); |
| 93 | |
| 94 | return 0; |
| 95 | } |
| Stephen Warren | 019bc62 | 2015-10-05 17:02:40 -0600 | [diff] [blame] | 96 | #endif /* PCI */ |