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 <init.h>
9 #include <asm/io.h>
10 #include <asm/arch-rockchip/bootrom.h>
11 #include <asm/arch-rockchip/sdram_rk3036.h>
12
13 #define TIMER_LOAD_COUNT_L 0x00
14 #define TIMER_LOAD_COUNT_H 0x04
15 #define TIMER_CONTROL_REG 0x10
16 #define TIMER_EN 0x1
17 #define TIMER_FMODE (0 << 1)
18 #define TIMER_RMODE (1 << 1)
19
rockchip_stimer_init(void)20 void rockchip_stimer_init(void)
21 {
22 asm volatile("mcr p15, 0, %0, c14, c0, 0"
23 : : "r"(COUNTER_FREQUENCY));
24
25 writel(0, CONFIG_ROCKCHIP_STIMER_BASE + TIMER_CONTROL_REG);
26 writel(0xffffffff, CONFIG_ROCKCHIP_STIMER_BASE);
27 writel(0xffffffff, CONFIG_ROCKCHIP_STIMER_BASE + 4);
28 writel(TIMER_EN | TIMER_FMODE, CONFIG_ROCKCHIP_STIMER_BASE +
29 TIMER_CONTROL_REG);
30 }
31
board_init_f(ulong dummy)32 void board_init_f(ulong dummy)
33 {
34 #ifdef CONFIG_DEBUG_UART
35 debug_uart_init();
36 #endif
37
38 /* Init secure timer */
39 rockchip_stimer_init();
40 /* Init ARM arch timer in arch/arm/cpu/armv7/arch_timer.c */
41 timer_init();
42
43 sdram_init();
44
45 /* return to maskrom */
46 back_to_bootrom(BROM_BOOT_NEXTSTAGE);
47 }
48
49 /* Place Holders */
board_init_r(gd_t * id,ulong dest_addr)50 void board_init_r(gd_t *id, ulong dest_addr)
51 {
52 /*
53 * Function attribute is no-return
54 * This Function never executes
55 */
56 while (1)
57 ;
58 }
59