common: Drop init.h from common header
[oweals/u-boot.git] / arch / arm / mach-rockchip / spl.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * (C) Copyright 2019 Rockchip Electronics Co., Ltd
4  */
5
6 #include <common.h>
7 #include <debug_uart.h>
8 #include <dm.h>
9 #include <hang.h>
10 #include <image.h>
11 #include <init.h>
12 #include <ram.h>
13 #include <spl.h>
14 #include <asm/arch-rockchip/bootrom.h>
15 #include <asm/io.h>
16
17 DECLARE_GLOBAL_DATA_PTR;
18
19 int board_return_to_bootrom(struct spl_image_info *spl_image,
20                             struct spl_boot_device *bootdev)
21 {
22         back_to_bootrom(BROM_BOOT_NEXTSTAGE);
23
24         return 0;
25 }
26
27 __weak const char * const boot_devices[BROM_LAST_BOOTSOURCE + 1] = {
28 };
29
30 const char *board_spl_was_booted_from(void)
31 {
32         u32  bootdevice_brom_id = readl(BROM_BOOTSOURCE_ID_ADDR);
33         const char *bootdevice_ofpath = NULL;
34
35         if (bootdevice_brom_id < ARRAY_SIZE(boot_devices))
36                 bootdevice_ofpath = boot_devices[bootdevice_brom_id];
37
38         if (bootdevice_ofpath)
39                 debug("%s: brom_bootdevice_id %x maps to '%s'\n",
40                       __func__, bootdevice_brom_id, bootdevice_ofpath);
41         else
42                 debug("%s: failed to resolve brom_bootdevice_id %x\n",
43                       __func__, bootdevice_brom_id);
44
45         return bootdevice_ofpath;
46 }
47
48 u32 spl_boot_device(void)
49 {
50         u32 boot_device = BOOT_DEVICE_MMC1;
51
52 #if defined(CONFIG_TARGET_CHROMEBOOK_JERRY) || \
53                 defined(CONFIG_TARGET_CHROMEBIT_MICKEY) || \
54                 defined(CONFIG_TARGET_CHROMEBOOK_MINNIE)
55         return BOOT_DEVICE_SPI;
56 #endif
57         if (CONFIG_IS_ENABLED(ROCKCHIP_BACK_TO_BROM))
58                 return BOOT_DEVICE_BOOTROM;
59
60         return boot_device;
61 }
62
63 u32 spl_mmc_boot_mode(const u32 boot_device)
64 {
65         return MMCSD_MODE_RAW;
66 }
67
68 #if !defined(CONFIG_ROCKCHIP_RK3188)
69 #define TIMER_LOAD_COUNT_L      0x00
70 #define TIMER_LOAD_COUNT_H      0x04
71 #define TIMER_CONTROL_REG       0x10
72 #define TIMER_EN        0x1
73 #define TIMER_FMODE     BIT(0)
74 #define TIMER_RMODE     BIT(1)
75
76 __weak void rockchip_stimer_init(void)
77 {
78         /* If Timer already enabled, don't re-init it */
79         u32 reg = readl(CONFIG_ROCKCHIP_STIMER_BASE + TIMER_CONTROL_REG);
80
81         if (reg & TIMER_EN)
82                 return;
83 #ifndef CONFIG_ARM64
84         asm volatile("mcr p15, 0, %0, c14, c0, 0"
85                      : : "r"(COUNTER_FREQUENCY));
86 #endif
87         writel(0, CONFIG_ROCKCHIP_STIMER_BASE + TIMER_CONTROL_REG);
88         writel(0xffffffff, CONFIG_ROCKCHIP_STIMER_BASE);
89         writel(0xffffffff, CONFIG_ROCKCHIP_STIMER_BASE + 4);
90         writel(TIMER_EN | TIMER_FMODE, CONFIG_ROCKCHIP_STIMER_BASE +
91                TIMER_CONTROL_REG);
92 }
93 #endif
94
95 __weak int board_early_init_f(void)
96 {
97         return 0;
98 }
99
100 __weak int arch_cpu_init(void)
101 {
102         return 0;
103 }
104
105 void board_init_f(ulong dummy)
106 {
107         int ret;
108 #if !defined(CONFIG_TPL) || defined(CONFIG_SPL_OS_BOOT)
109         struct udevice *dev;
110 #endif
111
112 #ifdef CONFIG_DEBUG_UART
113         /*
114          * Debug UART can be used from here if required:
115          *
116          * debug_uart_init();
117          * printch('a');
118          * printhex8(0x1234);
119          * printascii("string");
120          */
121         debug_uart_init();
122         debug("\nspl:debug uart enabled in %s\n", __func__);
123 #endif
124
125         board_early_init_f();
126
127         ret = spl_early_init();
128         if (ret) {
129                 printf("spl_early_init() failed: %d\n", ret);
130                 hang();
131         }
132         arch_cpu_init();
133 #if !defined(CONFIG_ROCKCHIP_RK3188)
134         rockchip_stimer_init();
135 #endif
136 #ifdef CONFIG_SYS_ARCH_TIMER
137         /* Init ARM arch timer in arch/arm/cpu/armv7/arch_timer.c */
138         timer_init();
139 #endif
140 #if !defined(CONFIG_TPL) || defined(CONFIG_SPL_OS_BOOT)
141         debug("\nspl:init dram\n");
142         ret = uclass_get_device(UCLASS_RAM, 0, &dev);
143         if (ret) {
144                 printf("DRAM init failed: %d\n", ret);
145                 return;
146         }
147 #endif
148         preloader_console_init();
149 }
150
151 #ifdef CONFIG_SPL_LOAD_FIT
152 int __weak board_fit_config_name_match(const char *name)
153 {
154         /* Just empty function now - can't decide what to choose */
155         debug("%s: %s\n", __func__, name);
156
157         return 0;
158 }
159 #endif