u-boot/arch/arm/mach-rockchip/rk3288-board-tpl.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (C) 2017 Amarula Solutions
 */

#include <common.h>
#include <debug_uart.h>
#include <dm.h>
#include <ram.h>
#include <spl.h>
#include <version.h>
#include <asm/io.h>
#include <asm/arch-rockchip/bootrom.h>
#include <asm/arch-rockchip/clock.h>
#include <asm/arch-rockchip/sys_proto.h>
#include <asm/arch-rockchip/timer.h>

void board_init_f(ulong dummy)
{
	struct udevice *dev;
	int ret;

#ifdef CONFIG_DEBUG_UART
	/*
	 * Debug UART can be used from here if required:
	 *
	 * debug_uart_init();
	 * printch('a');
	 * printhex8(0x1234);
	 * printascii("string");
	 */
	debug_uart_init();
#endif
	ret = spl_early_init();
	if (ret) {
		debug("spl_early_init() failed: %d\n", ret);
		hang();
	}

	rockchip_timer_init();
	configure_l2ctlr();

	ret = rockchip_get_clk(&dev);
	if (ret) {
		debug("CLK init failed: %d\n", ret);
		return;
	}

	ret = uclass_get_device(UCLASS_RAM, 0, &dev);
	if (ret) {
		debug("DRAM init failed: %d\n", ret);
		return;
	}
}

void board_return_to_bootrom(void)
{
	back_to_bootrom(BROM_BOOT_NEXTSTAGE);
}

u32 spl_boot_device(void)
{
	return BOOT_DEVICE_BOOTROM;
}

void spl_board_init(void)
{
	puts("\nU-Boot TPL " PLAIN_VERSION " (" U_BOOT_DATE " - " \
				U_BOOT_TIME ")\n");
}