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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2016 Rockchip Electronics Co., Ltd
*/
#include <common.h>
#include <dm.h>
#include <env.h>
#include <log.h>
#include <spl_gpio.h>
#include <asm/io.h>
#include <asm/arch-rockchip/cru.h>
#include <asm/arch-rockchip/gpio.h>
#include <asm/arch-rockchip/grf_rk3399.h>
#ifdef CONFIG_SPL_BUILD
#define PMUGRF_BASE 0xff320000
#define GPIO0_BASE 0xff720000
/**
* LED setup for roc-rk3399-pc
*
* 1. Set the low power leds (only during POR, pwr_key env is 'y')
* glow yellow LED, termed as low power
* poll for on board power key press
* once powe key pressed, turn off yellow
* 2. Turn on red LED, indicating full power mode
*/
void led_setup(void)
{
struct rockchip_gpio_regs * const gpio0 = (void *)GPIO0_BASE;
struct rk3399_pmugrf_regs * const pmugrf = (void *)PMUGRF_BASE;
bool press_pwr_key = false;
if (IS_ENABLED(CONFIG_SPL_ENV_SUPPORT)) {
env_init();
env_load();
if (env_get_yesno("pwr_key") == 1)
press_pwr_key = true;
}
if (press_pwr_key && !strcmp(get_reset_cause(), "POR")) {
spl_gpio_output(gpio0, GPIO(BANK_A, 2), 1);
spl_gpio_set_pull(&pmugrf->gpio0_p, GPIO(BANK_A, 5),
GPIO_PULL_NORMAL);
while (readl(&gpio0->ext_port) & 0x20)
;
spl_gpio_output(gpio0, GPIO(BANK_A, 2), 0);
}
spl_gpio_output(gpio0, GPIO(BANK_B, 5), 1);
}
#endif
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