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 <asm/gpio.h> 13 #include "max77620_init.h" 14 #include <asm/arch-tegra/gpu.h> 15 #include "pinmux-config-p2571.h" 16 17 void pin_mux_mmc(void) 18 { 19 struct udevice *dev; 20 uchar val; 21 int ret; 22 23 /* Turn on MAX77620 LDO2 to 3.3V for SD card power */ 24 debug("%s: Set LDO2 for VDDIO_SDMMC_AP power to 3.3V\n", __func__); 25 ret = i2c_get_chip_for_busnum(0, MAX77620_I2C_ADDR_7BIT, 1, &dev); 26 if (ret) { 27 printf("%s: Cannot find MAX77620 I2C chip\n", __func__); 28 return; 29 } 30 /* 0xF2 for 3.3v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */ 31 val = 0xF2; 32 ret = dm_i2c_write(dev, MAX77620_CNFG1_L2_REG, &val, 1); 33 if (ret) 34 printf("i2c_write 0 0x3c 0x27 failed: %d\n", ret); 35 } 36 37 /* 38 * Routine: pinmux_init 39 * Description: Do individual peripheral pinmux configs 40 */ 41 void pinmux_init(void) 42 { 43 pinmux_clear_tristate_input_clamping(); 44 45 gpio_config_table(p2571_gpio_inits, 46 ARRAY_SIZE(p2571_gpio_inits)); 47 48 pinmux_config_pingrp_table(p2571_pingrps, 49 ARRAY_SIZE(p2571_pingrps)); 50 51 pinmux_config_drvgrp_table(p2571_drvgrps, 52 ARRAY_SIZE(p2571_drvgrps)); 53 } 54 55 /* 56 * Routine: start_cpu_fan 57 * Description: Enable/start PWM CPU fan on P2571 58 */ 59 void start_cpu_fan(void) 60 { 61 /* GPIO_PE4 is PS_VDD_FAN_ENABLE */ 62 gpio_request(GPIO_PE4, "FAN_VDD"); 63 gpio_direction_output(GPIO_PE4, 1); 64 } 65 66 int ft_board_setup(void *blob, bd_t *bd) 67 { 68 gpu_enable_node(blob, "/gpu@0,57000000"); 69 return 0; 70 } 71