u-boot/arch/arm/mach-rockchip/rk3399-board-tpl.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * (C) Copyright 2019 Rockchip Electronics Co., Ltd
 */

#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>

#define TIMER_CHN10_BASE	0xff8680a0
#define TIMER_END_COUNT_L	0x00
#define TIMER_END_COUNT_H	0x04
#define TIMER_INIT_COUNT_L	0x10
#define TIMER_INIT_COUNT_H	0x14
#define TIMER_CONTROL_REG	0x1c

#define TIMER_EN	0x1
#define	TIMER_FMODE	(0 << 1)
#define	TIMER_RMODE	(1 << 1)

void secure_timer_init(void)
{
	writel(0xffffffff, TIMER_CHN10_BASE + TIMER_END_COUNT_L);
	writel(0xffffffff, TIMER_CHN10_BASE + TIMER_END_COUNT_H);
	writel(0, TIMER_CHN10_BASE + TIMER_INIT_COUNT_L);
	writel(0, TIMER_CHN10_BASE + TIMER_INIT_COUNT_H);
	writel(TIMER_EN | TIMER_FMODE, TIMER_CHN10_BASE + TIMER_CONTROL_REG);
}

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

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

	secure_timer_init();

	ret = uclass_get_device(UCLASS_RAM, 0, &dev);
	if (ret) {
		pr_err("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 " " U_BOOT_TZ ")\n");
}

#ifdef CONFIG_SPL_LOAD_FIT
int board_fit_config_name_match(const char *name)
{
	/* Just empty function now - can't decide what to choose */
	debug("%s: %s\n", __func__, name);

	return 0;
}
#endif