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https://github.com/brain-hackers/u-boot-brain
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6d06ea6c94
ROC-RK3399-PC has specific set of configurations for on-board led setup. Due to easiness for user to know the state of the board roc-rk339-pc board code will setup the low power led on/off, and waiting for user to press power key and then glow full power led. All this needs to happen only during power-on-reset not for soft reset or WDT. Also, it is not a proper usage to ask the user to press the Power key if the board connected remotely, so add the environment variable 'pwr_key' to check as well. So, user need to press Power key only - during POR - pwr_key=y Tested-by: Suniel Mahesh <sunil@amarulasolutions.com> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
79 lines
1.7 KiB
C
79 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2016 Rockchip Electronics Co., Ltd
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*/
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#include <common.h>
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#include <dm.h>
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#include <env.h>
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#include <log.h>
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#include <spl_gpio.h>
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#include <asm/io.h>
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#include <power/regulator.h>
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#include <asm/arch-rockchip/cru.h>
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#include <asm/arch-rockchip/gpio.h>
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#include <asm/arch-rockchip/grf_rk3399.h>
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#ifndef CONFIG_SPL_BUILD
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int board_early_init_f(void)
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{
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struct udevice *regulator;
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int ret;
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ret = regulator_get_by_platname("vcc5v0_host", ®ulator);
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if (ret) {
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debug("%s vcc5v0_host init fail! ret %d\n", __func__, ret);
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goto out;
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}
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ret = regulator_set_enable(regulator, true);
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if (ret)
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debug("%s vcc5v0-host-en set fail! ret %d\n", __func__, ret);
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out:
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return 0;
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}
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#else
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#define PMUGRF_BASE 0xff320000
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#define GPIO0_BASE 0xff720000
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/**
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* LED setup for roc-rk3399-pc
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*
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* 1. Set the low power leds (only during POR, pwr_key env is 'y')
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* glow yellow LED, termed as low power
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* poll for on board power key press
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* once powe key pressed, turn off yellow
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* 2. Turn on red LED, indicating full power mode
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*/
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void led_setup(void)
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{
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struct rockchip_gpio_regs * const gpio0 = (void *)GPIO0_BASE;
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struct rk3399_pmugrf_regs * const pmugrf = (void *)PMUGRF_BASE;
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bool press_pwr_key = false;
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if (IS_ENABLED(CONFIG_SPL_ENV_SUPPORT)) {
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env_init();
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env_load();
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if (env_get_yesno("pwr_key") == 1)
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press_pwr_key = true;
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}
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if (press_pwr_key && !strcmp(get_reset_cause(), "POR")) {
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spl_gpio_output(gpio0, GPIO(BANK_A, 2), 1);
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spl_gpio_set_pull(&pmugrf->gpio0_p, GPIO(BANK_A, 5),
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GPIO_PULL_NORMAL);
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while (readl(&gpio0->ext_port) & 0x20)
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;
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spl_gpio_output(gpio0, GPIO(BANK_A, 2), 0);
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}
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spl_gpio_output(gpio0, GPIO(BANK_B, 5), 1);
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}
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#endif
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