1*83d290c5STom Rini // SPDX-License-Identifier: GPL-2.0 210a03382SStephen Warren /* 310a03382SStephen Warren * Copyright (c) 2016, NVIDIA CORPORATION 410a03382SStephen Warren */ 510a03382SStephen Warren 610a03382SStephen Warren #include <common.h> 745d85f08SStephen Warren #include <i2c.h> 845d85f08SStephen Warren #include "../p2571/max77620_init.h" 945d85f08SStephen Warren 1045d85f08SStephen Warren int tegra_board_init(void) 1145d85f08SStephen Warren { 1245d85f08SStephen Warren struct udevice *dev; 1345d85f08SStephen Warren uchar val; 1445d85f08SStephen Warren int ret; 1545d85f08SStephen Warren 1645d85f08SStephen Warren /* Turn on MAX77620 LDO3 to 3.3V for SD card power */ 1745d85f08SStephen Warren debug("%s: Set LDO3 for VDDIO_SDMMC_AP power to 3.3V\n", __func__); 1845d85f08SStephen Warren ret = i2c_get_chip_for_busnum(0, MAX77620_I2C_ADDR_7BIT, 1, &dev); 1945d85f08SStephen Warren if (ret) { 2045d85f08SStephen Warren printf("%s: Cannot find MAX77620 I2C chip\n", __func__); 2145d85f08SStephen Warren return ret; 2245d85f08SStephen Warren } 2345d85f08SStephen Warren /* 0xF2 for 3.3v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */ 2445d85f08SStephen Warren val = 0xF2; 2545d85f08SStephen Warren ret = dm_i2c_write(dev, MAX77620_CNFG1_L3_REG, &val, 1); 2645d85f08SStephen Warren if (ret) { 2745d85f08SStephen Warren printf("i2c_write 0 0x3c 0x27 failed: %d\n", ret); 2845d85f08SStephen Warren return ret; 2945d85f08SStephen Warren } 3045d85f08SStephen Warren 3145d85f08SStephen Warren return 0; 3245d85f08SStephen Warren } 33a6bb0084SStephen Warren 34a6bb0084SStephen Warren int tegra_pcie_board_init(void) 35a6bb0084SStephen Warren { 36a6bb0084SStephen Warren struct udevice *dev; 37a6bb0084SStephen Warren uchar val; 38a6bb0084SStephen Warren int ret; 39a6bb0084SStephen Warren 40a6bb0084SStephen Warren /* Turn on MAX77620 LDO7 to 1.05V for PEX power */ 41a6bb0084SStephen Warren debug("%s: Set LDO7 for PEX power to 1.05V\n", __func__); 42a6bb0084SStephen Warren ret = i2c_get_chip_for_busnum(0, MAX77620_I2C_ADDR_7BIT, 1, &dev); 43a6bb0084SStephen Warren if (ret) { 44a6bb0084SStephen Warren printf("%s: Cannot find MAX77620 I2C chip\n", __func__); 45a6bb0084SStephen Warren return -1; 46a6bb0084SStephen Warren } 47a6bb0084SStephen Warren /* 0xC5 for 1.05v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */ 48a6bb0084SStephen Warren val = 0xC5; 49a6bb0084SStephen Warren ret = dm_i2c_write(dev, MAX77620_CNFG1_L7_REG, &val, 1); 50a6bb0084SStephen Warren if (ret) 51a6bb0084SStephen Warren printf("i2c_write 0 0x3c 0x31 failed: %d\n", ret); 52a6bb0084SStephen Warren 53a6bb0084SStephen Warren return 0; 54a6bb0084SStephen Warren } 55