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barebox / arch / arm / boards / nvidia-beaver / board.c
// SPDX-License-Identifier: GPL-2.0-only
// SPDX-FileCopyrightText: 2014 Lucas Stach <l.stach@pengutronix.de>

#include <common.h>
#include <dt-bindings/gpio/tegra-gpio.h>
#include <gpio.h>
#include <i2c/i2c.h>
#include <init.h>
#include <mach/tegra-bbu.h>

static int nvidia_beaver_fs_init(void)
{
	struct i2c_client client;
	u8 data;

	if (!of_machine_is_compatible("nvidia,beaver"))
		return 0;

	client.adapter = i2c_get_adapter(4);
	client.addr = 0x2d;

	/* TPS659110: LDO5_REG = 3.3v, ACTIVE to SDMMC1 */
	data = 0x65;
	i2c_write_reg(&client, 0x32, &data, 1);

	/* TPS659110: LDO1_REG = 1.05v, ACTIVE to PEX */
	data = 0x15;
	i2c_write_reg(&client, 0x30, &data, 1);

	/* enable SYS_3V3_PEXS */
	gpio_direction_output(TEGRA_GPIO(L, 7), 1);

	return 0;
}
fs_initcall(nvidia_beaver_fs_init);

static int nvidia_beaver_device_init(void)
{
	if (!of_machine_is_compatible("nvidia,beaver"))
		return 0;

	barebox_set_hostname("beaver");

	tegra_bbu_register_emmc_handler("eMMC", "/dev/mmc3.boot0",
					BBU_HANDLER_FLAG_DEFAULT);

	return 0;
}
device_initcall(nvidia_beaver_device_init);