110a03382SStephen Warren /* 210a03382SStephen Warren * Copyright (c) 2016, NVIDIA CORPORATION 310a03382SStephen Warren * 410a03382SStephen Warren * SPDX-License-Identifier: GPL-2.0 510a03382SStephen Warren */ 610a03382SStephen Warren 710a03382SStephen Warren #include <common.h> 845d85f08SStephen Warren #include <i2c.h> 945d85f08SStephen Warren #include "../p2571/max77620_init.h" 1045d85f08SStephen Warren 1145d85f08SStephen Warren int tegra_board_init(void) 1245d85f08SStephen Warren { 1345d85f08SStephen Warren struct udevice *dev; 1445d85f08SStephen Warren uchar val; 1545d85f08SStephen Warren int ret; 1645d85f08SStephen Warren 1745d85f08SStephen Warren /* Turn on MAX77620 LDO3 to 3.3V for SD card power */ 1845d85f08SStephen Warren debug("%s: Set LDO3 for VDDIO_SDMMC_AP power to 3.3V\n", __func__); 1945d85f08SStephen Warren ret = i2c_get_chip_for_busnum(0, MAX77620_I2C_ADDR_7BIT, 1, &dev); 2045d85f08SStephen Warren if (ret) { 2145d85f08SStephen Warren printf("%s: Cannot find MAX77620 I2C chip\n", __func__); 2245d85f08SStephen Warren return ret; 2345d85f08SStephen Warren } 2445d85f08SStephen Warren /* 0xF2 for 3.3v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */ 2545d85f08SStephen Warren val = 0xF2; 2645d85f08SStephen Warren ret = dm_i2c_write(dev, MAX77620_CNFG1_L3_REG, &val, 1); 2745d85f08SStephen Warren if (ret) { 2845d85f08SStephen Warren printf("i2c_write 0 0x3c 0x27 failed: %d\n", ret); 2945d85f08SStephen Warren return ret; 3045d85f08SStephen Warren } 3145d85f08SStephen Warren 3245d85f08SStephen Warren return 0; 3345d85f08SStephen Warren } 34*a6bb0084SStephen Warren 35*a6bb0084SStephen Warren int tegra_pcie_board_init(void) 36*a6bb0084SStephen Warren { 37*a6bb0084SStephen Warren struct udevice *dev; 38*a6bb0084SStephen Warren uchar val; 39*a6bb0084SStephen Warren int ret; 40*a6bb0084SStephen Warren 41*a6bb0084SStephen Warren /* Turn on MAX77620 LDO7 to 1.05V for PEX power */ 42*a6bb0084SStephen Warren debug("%s: Set LDO7 for PEX power to 1.05V\n", __func__); 43*a6bb0084SStephen Warren ret = i2c_get_chip_for_busnum(0, MAX77620_I2C_ADDR_7BIT, 1, &dev); 44*a6bb0084SStephen Warren if (ret) { 45*a6bb0084SStephen Warren printf("%s: Cannot find MAX77620 I2C chip\n", __func__); 46*a6bb0084SStephen Warren return -1; 47*a6bb0084SStephen Warren } 48*a6bb0084SStephen Warren /* 0xC5 for 1.05v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */ 49*a6bb0084SStephen Warren val = 0xC5; 50*a6bb0084SStephen Warren ret = dm_i2c_write(dev, MAX77620_CNFG1_L7_REG, &val, 1); 51*a6bb0084SStephen Warren if (ret) 52*a6bb0084SStephen Warren printf("i2c_write 0 0x3c 0x31 failed: %d\n", ret); 53*a6bb0084SStephen Warren 54*a6bb0084SStephen Warren return 0; 55*a6bb0084SStephen Warren } 56