1 /* 2 * (C) Copyright 2013-2015 3 * NVIDIA Corporation <www.nvidia.com> 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 #include <common.h> 9 #include <i2c.h> 10 #include <asm/arch/gpio.h> 11 #include <asm/arch/pinmux.h> 12 #include "../p2571/max77620_init.h" 13 #include "pinmux-config-p2371-2180.h" 14 15 void pin_mux_mmc(void) 16 { 17 struct udevice *dev; 18 uchar val; 19 int ret; 20 21 /* Turn on MAX77620 LDO2 to 3.3V for SD card power */ 22 debug("%s: Set LDO2 for VDDIO_SDMMC_AP power to 3.3V\n", __func__); 23 ret = i2c_get_chip_for_busnum(0, MAX77620_I2C_ADDR_7BIT, 1, &dev); 24 if (ret) { 25 printf("%s: Cannot find MAX77620 I2C chip\n", __func__); 26 return; 27 } 28 /* 0xF2 for 3.3v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */ 29 val = 0xF2; 30 ret = dm_i2c_write(dev, MAX77620_CNFG1_L2_REG, &val, 1); 31 if (ret) 32 printf("i2c_write 0 0x3c 0x27 failed: %d\n", ret); 33 } 34 35 /* 36 * Routine: pinmux_init 37 * Description: Do individual peripheral pinmux configs 38 */ 39 void pinmux_init(void) 40 { 41 pinmux_clear_tristate_input_clamping(); 42 43 gpio_config_table(p2371_2180_gpio_inits, 44 ARRAY_SIZE(p2371_2180_gpio_inits)); 45 46 pinmux_config_pingrp_table(p2371_2180_pingrps, 47 ARRAY_SIZE(p2371_2180_pingrps)); 48 49 pinmux_config_drvgrp_table(p2371_2180_drvgrps, 50 ARRAY_SIZE(p2371_2180_drvgrps)); 51 } 52 53 #ifdef CONFIG_PCI_TEGRA 54 int tegra_pcie_board_init(void) 55 { 56 struct udevice *dev; 57 uchar val; 58 int ret; 59 60 /* Turn on MAX77620 LDO1 to 1.05V for PEX power */ 61 debug("%s: Set LDO1 for PEX power to 1.05V\n", __func__); 62 ret = i2c_get_chip_for_busnum(0, MAX77620_I2C_ADDR_7BIT, 1, &dev); 63 if (ret) { 64 printf("%s: Cannot find MAX77620 I2C chip\n", __func__); 65 return -1; 66 } 67 /* 0xCA for 1.05v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */ 68 val = 0xCA; 69 ret = dm_i2c_write(dev, MAX77620_CNFG1_L1_REG, &val, 1); 70 if (ret) 71 printf("i2c_write 0 0x3c 0x25 failed: %d\n", ret); 72 73 return 0; 74 } 75 #endif /* PCI */ 76