u-boot/arch/arm/mach-rockchip/tpl.c
Johan Jonker 30a7b824aa rockchip: tpl: use IS_ENABLED for timer_init() call condition
Not all Rockchip SoC models use the ARM arch timer.
Call the function timer_init() only when
CONFIG_SYS_ARCH_TIMER is available.
Use the call condition IS_ENABLED to increase
build coverage and make the code easier to read.

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2022-04-18 11:25:13 +08:00

104 lines
2.2 KiB
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 <hang.h>
#include <init.h>
#include <log.h>
#include <ram.h>
#include <spl.h>
#include <version.h>
#include <asm/io.h>
#include <asm/arch-rockchip/bootrom.h>
#include <linux/bitops.h>
#include <linux/kconfig.h>
#if CONFIG_IS_ENABLED(BANNER_PRINT)
#include <timestamp.h>
#endif
#define TIMER_LOAD_COUNT_L 0x00
#define TIMER_LOAD_COUNT_H 0x04
#define TIMER_CONTROL_REG 0x10
#define TIMER_EN 0x1
#define TIMER_FMODE BIT(0)
#define TIMER_RMODE BIT(1)
__weak void rockchip_stimer_init(void)
{
#if defined(CONFIG_ROCKCHIP_STIMER_BASE)
/* If Timer already enabled, don't re-init it */
u32 reg = readl(CONFIG_ROCKCHIP_STIMER_BASE + TIMER_CONTROL_REG);
if (reg & TIMER_EN)
return;
#ifndef CONFIG_ARM64
asm volatile("mcr p15, 0, %0, c14, c0, 0"
: : "r"(COUNTER_FREQUENCY));
#endif
writel(0, CONFIG_ROCKCHIP_STIMER_BASE + TIMER_CONTROL_REG);
writel(0xffffffff, CONFIG_ROCKCHIP_STIMER_BASE);
writel(0xffffffff, CONFIG_ROCKCHIP_STIMER_BASE + 4);
writel(TIMER_EN | TIMER_FMODE, CONFIG_ROCKCHIP_STIMER_BASE +
TIMER_CONTROL_REG);
#endif
}
void board_init_f(ulong dummy)
{
struct udevice *dev;
int ret;
#if defined(CONFIG_DEBUG_UART) && defined(CONFIG_TPL_SERIAL)
/*
* Debug UART can be used from here if required:
*
* debug_uart_init();
* printch('a');
* printhex8(0x1234);
* printascii("string");
*/
debug_uart_init();
#ifdef CONFIG_TPL_BANNER_PRINT
printascii("\nU-Boot TPL " PLAIN_VERSION " (" U_BOOT_DATE " - " \
U_BOOT_TIME ")\n");
#endif
#endif
ret = spl_early_init();
if (ret) {
debug("spl_early_init() failed: %d\n", ret);
hang();
}
/* Init secure timer */
rockchip_stimer_init();
/* Init ARM arch timer */
if (IS_ENABLED(CONFIG_SYS_ARCH_TIMER))
timer_init();
ret = uclass_get_device(UCLASS_RAM, 0, &dev);
if (ret) {
printf("DRAM init failed: %d\n", ret);
return;
}
}
int board_return_to_bootrom(struct spl_image_info *spl_image,
struct spl_boot_device *bootdev)
{
back_to_bootrom(BROM_BOOT_NEXTSTAGE);
return 0;
}
u32 spl_boot_device(void)
{
return BOOT_DEVICE_BOOTROM;
}