1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * (C) Copyright 2015-2019 Rockchip Electronics Co., Ltd
4 */
5
6 #include <common.h>
7 #include <debug_uart.h>
8 #include <asm/io.h>
9 #include <asm/arch-rockchip/bootrom.h>
10 #include <asm/arch-rockchip/sdram_rk3036.h>
11
12 #define TIMER_LOAD_COUNT_L 0x00
13 #define TIMER_LOAD_COUNT_H 0x04
14 #define TIMER_CONTROL_REG 0x10
15 #define TIMER_EN 0x1
16 #define TIMER_FMODE (0 << 1)
17 #define TIMER_RMODE (1 << 1)
18
rockchip_stimer_init(void)19 void rockchip_stimer_init(void)
20 {
21 asm volatile("mcr p15, 0, %0, c14, c0, 0"
22 : : "r"(COUNTER_FREQUENCY));
23
24 writel(0, CONFIG_ROCKCHIP_STIMER_BASE + TIMER_CONTROL_REG);
25 writel(0xffffffff, CONFIG_ROCKCHIP_STIMER_BASE);
26 writel(0xffffffff, CONFIG_ROCKCHIP_STIMER_BASE + 4);
27 writel(TIMER_EN | TIMER_FMODE, CONFIG_ROCKCHIP_STIMER_BASE +
28 TIMER_CONTROL_REG);
29 }
30
board_init_f(ulong dummy)31 void board_init_f(ulong dummy)
32 {
33 #ifdef CONFIG_DEBUG_UART
34 debug_uart_init();
35 #endif
36
37 /* Init secure timer */
38 rockchip_stimer_init();
39 /* Init ARM arch timer in arch/arm/cpu/armv7/arch_timer.c */
40 timer_init();
41
42 sdram_init();
43
44 /* return to maskrom */
45 back_to_bootrom(BROM_BOOT_NEXTSTAGE);
46 }
47
48 /* Place Holders */
board_init_r(gd_t * id,ulong dest_addr)49 void board_init_r(gd_t *id, ulong dest_addr)
50 {
51 /*
52 * Function attribute is no-return
53 * This Function never executes
54 */
55 while (1)
56 ;
57 }
58