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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2017 Theobroma Systems Design und Consulting GmbH
*/
#include <common.h>
#include <dm.h>
#include <ram.h>
#include <spl.h>
#include <syscon.h>
#include <asm/io.h>
#include <asm/gpio.h>
#include <asm/arch/clock.h>
#include <asm/arch/cru_rk3368.h>
#include <asm/arch/grf_rk3368.h>
#include <asm/arch/timer.h>
#include <power/regulator.h>
int mach_cpu_init(void)
{
return 0;
}
int board_init(void)
{
int ret;
/*
* We need to call into regulators_enable_boot_on() again, as the call
* during SPL may have not included all regulators.
*/
ret = regulators_enable_boot_on(false);
if (ret)
debug("%s: Cannot enable boot on regulator\n", __func__);
return 0;
}
static void rk3368_force_power_on_reset(void)
{
ofnode node;
struct gpio_desc sysreset_gpio;
debug("%s: trying to force a power-on reset\n", __func__);
node = ofnode_path("/config");
if (!ofnode_valid(node)) {
debug("%s: no /config node?\n", __func__);
return;
}
if (gpio_request_by_name_nodev(node, "sysreset-gpio", 0,
&sysreset_gpio, GPIOD_IS_OUT)) {
debug("%s: could not find a /config/sysreset-gpio\n", __func__);
return;
}
dm_gpio_set_value(&sysreset_gpio, 1);
}
void spl_board_init(void)
{
int ret;
struct rk3368_cru *cru = rockchip_get_cru();
if (cru->glb_rst_st != 0)
rk3368_force_power_on_reset();
ret = regulators_enable_boot_on(false);
if (ret)
debug("%s: Cannot enable boot on regulator\n", __func__);
preloader_console_init();
}
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