1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright (C) 2016, STMicroelectronics - All Rights Reserved
4 * Author(s): Vikas Manocha, <vikas.manocha@st.com> for STMicroelectronics.
5 */
6
7 #include <common.h>
8 #include <dm.h>
9 #include <lcd.h>
10 #include <ram.h>
11 #include <spl.h>
12 #include <splash.h>
13 #include <st_logo_data.h>
14 #include <video.h>
15 #include <asm/io.h>
16 #include <asm/armv7m.h>
17 #include <asm/arch/stm32.h>
18 #include <asm/arch/gpio.h>
19 #include <asm/arch/syscfg.h>
20 #include <asm/gpio.h>
21
22 DECLARE_GLOBAL_DATA_PTR;
23
dram_init(void)24 int dram_init(void)
25 {
26 #ifndef CONFIG_SUPPORT_SPL
27 int rv;
28 struct udevice *dev;
29 rv = uclass_get_device(UCLASS_RAM, 0, &dev);
30 if (rv) {
31 debug("DRAM init failed: %d\n", rv);
32 return rv;
33 }
34
35 #endif
36 return fdtdec_setup_mem_size_base();
37 }
38
dram_init_banksize(void)39 int dram_init_banksize(void)
40 {
41 return fdtdec_setup_memory_banksize();
42 }
43
board_early_init_f(void)44 int board_early_init_f(void)
45 {
46 return 0;
47 }
48
49 #ifdef CONFIG_SPL_BUILD
50 #ifdef CONFIG_SPL_OS_BOOT
spl_start_uboot(void)51 int spl_start_uboot(void)
52 {
53 debug("SPL: booting kernel\n");
54 /* break into full u-boot on 'c' */
55 return serial_tstc() && serial_getc() == 'c';
56 }
57 #endif
58
spl_dram_init(void)59 int spl_dram_init(void)
60 {
61 struct udevice *dev;
62 int rv;
63 rv = uclass_get_device(UCLASS_RAM, 0, &dev);
64 if (rv)
65 debug("DRAM init failed: %d\n", rv);
66 return rv;
67 }
spl_board_init(void)68 void spl_board_init(void)
69 {
70 spl_dram_init();
71 preloader_console_init();
72 arch_cpu_init(); /* to configure mpu for sdram rw permissions */
73 }
spl_boot_device(void)74 u32 spl_boot_device(void)
75 {
76 return BOOT_DEVICE_XIP;
77 }
78
79 #endif
get_board_rev(void)80 u32 get_board_rev(void)
81 {
82 return 0;
83 }
84
board_late_init(void)85 int board_late_init(void)
86 {
87 struct gpio_desc gpio = {};
88 int node;
89
90 node = fdt_node_offset_by_compatible(gd->fdt_blob, 0, "st,led1");
91 if (node < 0)
92 return -1;
93
94 gpio_request_by_name_nodev(offset_to_ofnode(node), "led-gpio", 0, &gpio,
95 GPIOD_IS_OUT);
96
97 if (dm_gpio_is_valid(&gpio)) {
98 dm_gpio_set_value(&gpio, 0);
99 mdelay(10);
100 dm_gpio_set_value(&gpio, 1);
101 }
102
103 /* read button 1*/
104 node = fdt_node_offset_by_compatible(gd->fdt_blob, 0, "st,button1");
105 if (node < 0)
106 return -1;
107
108 gpio_request_by_name_nodev(offset_to_ofnode(node), "button-gpio", 0,
109 &gpio, GPIOD_IS_IN);
110
111 if (dm_gpio_is_valid(&gpio)) {
112 if (dm_gpio_get_value(&gpio))
113 puts("usr button is at HIGH LEVEL\n");
114 else
115 puts("usr button is at LOW LEVEL\n");
116 }
117
118 return 0;
119 }
120
board_init(void)121 int board_init(void)
122 {
123 gd->bd->bi_boot_params = gd->bd->bi_dram[0].start + 0x100;
124
125 #ifdef CONFIG_ETH_DESIGNWARE
126 /* Set >RMII mode */
127 STM32_SYSCFG->pmc |= SYSCFG_PMC_MII_RMII_SEL;
128 #endif
129
130 #if defined(CONFIG_CMD_BMP)
131 bmp_display((ulong)stmicroelectronics_uboot_logo_8bit_rle,
132 BMP_ALIGN_CENTER, BMP_ALIGN_CENTER);
133 #endif /* CONFIG_CMD_BMP */
134
135 return 0;
136 }
137