1 // SPDX-License-Identifier: GPL-2.0+
3 * (C) Copyright 2013-2015
4 * NVIDIA Corporation <www.nvidia.com>
9 #include <asm/arch/gpio.h>
10 #include <asm/arch/pinmux.h>
12 #include "max77620_init.h"
13 #include "pinmux-config-p2571.h"
15 void pin_mux_mmc(void)
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);
25 printf("%s: Cannot find MAX77620 I2C chip\n", __func__);
28 /* 0xF2 for 3.3v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */
30 ret = dm_i2c_write(dev, MAX77620_CNFG1_L2_REG, &val, 1);
32 printf("i2c_write 0 0x3c 0x27 failed: %d\n", ret);
36 * Routine: pinmux_init
37 * Description: Do individual peripheral pinmux configs
39 void pinmux_init(void)
41 pinmux_clear_tristate_input_clamping();
43 gpio_config_table(p2571_gpio_inits,
44 ARRAY_SIZE(p2571_gpio_inits));
46 pinmux_config_pingrp_table(p2571_pingrps,
47 ARRAY_SIZE(p2571_pingrps));
49 pinmux_config_drvgrp_table(p2571_drvgrps,
50 ARRAY_SIZE(p2571_drvgrps));
54 * Routine: start_cpu_fan
55 * Description: Enable/start PWM CPU fan on P2571
57 void start_cpu_fan(void)
59 /* GPIO_PE4 is PS_VDD_FAN_ENABLE */
60 gpio_request(TEGRA_GPIO(E, 4), "FAN_VDD");
61 gpio_direction_output(TEGRA_GPIO(E, 4), 1);