diff options
Diffstat (limited to 'roms/u-boot/board/nvidia/p2571/p2571.c')
| -rw-r--r-- | roms/u-boot/board/nvidia/p2571/p2571.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/roms/u-boot/board/nvidia/p2571/p2571.c b/roms/u-boot/board/nvidia/p2571/p2571.c new file mode 100644 index 000000000..a4c4259ee --- /dev/null +++ b/roms/u-boot/board/nvidia/p2571/p2571.c @@ -0,0 +1,44 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * (C) Copyright 2013-2019 + * NVIDIA Corporation <www.nvidia.com> + */ + +#include <common.h> +#include <i2c.h> +#include <log.h> +#include <asm/arch/gpio.h> +#include <asm/arch/pinmux.h> +#include <asm/gpio.h> +#include "max77620_init.h" + +void pin_mux_mmc(void) +{ + struct udevice *dev; + uchar val; + int ret; + + /* Turn on MAX77620 LDO2 to 3.3V for SD card power */ + debug("%s: Set LDO2 for VDDIO_SDMMC_AP power to 3.3V\n", __func__); + ret = i2c_get_chip_for_busnum(0, MAX77620_I2C_ADDR_7BIT, 1, &dev); + if (ret) { + printf("%s: Cannot find MAX77620 I2C chip\n", __func__); + return; + } + /* 0xF2 for 3.3v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */ + val = 0xF2; + ret = dm_i2c_write(dev, MAX77620_CNFG1_L2_REG, &val, 1); + if (ret) + printf("i2c_write 0 0x3c 0x27 failed: %d\n", ret); +} + +/* + * Routine: start_cpu_fan + * Description: Enable/start PWM CPU fan on P2571 + */ +void start_cpu_fan(void) +{ + /* GPIO_PE4 is PS_VDD_FAN_ENABLE */ + gpio_request(TEGRA_GPIO(E, 4), "FAN_VDD"); + gpio_direction_output(TEGRA_GPIO(E, 4), 1); +} |