mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-10 05:06:16 +09:00
ae5a3659f3
We prefer to use ARM arch timer instead of rockchip timer, so that we are using the same timer for SPL, U-Boot and Kernel, which will make things simple and easy to track to boot time. Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
90 lines
1.8 KiB
C
90 lines
1.8 KiB
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>
|
|
|
|
#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)
|
|
|
|
void rockchip_stimer_init(void)
|
|
{
|
|
asm volatile("mcr p15, 0, %0, c14, c0, 0"
|
|
: : "r"(COUNTER_FREQUENCY));
|
|
|
|
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);
|
|
}
|
|
|
|
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();
|
|
}
|
|
|
|
/* Init secure timer */
|
|
rockchip_stimer_init();
|
|
/* Init ARM arch timer in arch/arm/cpu/armv7/arch_timer.c */
|
|
timer_init();
|
|
|
|
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");
|
|
}
|