u-boot/board/chipspark/popmetal_rk3288/popmetal-rk3288.c

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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2016 Rockchip Electronics Co., Ltd
*/
#include <common.h>
#include <init.h>
#include <asm/gpio.h>
#define GPIO7A3_HUB_RST 227
int rk3288_board_late_init(void)
{
int ret;
ret = gpio_request(GPIO7A3_HUB_RST, "hub_rst");
if (ret)
return ret;
ret = gpio_direction_output(GPIO7A3_HUB_RST, 1);
if (ret)
return ret;
return 0;
}