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 <init.h>
10 #include <lcd.h>
11 #include <miiphy.h>
12 #include <phy_interface.h>
13 #include <ram.h>
14 #include <serial.h>
15 #include <spl.h>
16 #include <splash.h>
17 #include <st_logo_data.h>
18 #include <video.h>
19 #include <asm/io.h>
20 #include <asm/armv7m.h>
21 #include <asm/arch/stm32.h>
22 #include <asm/arch/gpio.h>
23 #include <asm/arch/syscfg.h>
24 #include <asm/gpio.h>
25
26 DECLARE_GLOBAL_DATA_PTR;
27
dram_init(void)28 int dram_init(void)
29 {
30 #ifndef CONFIG_SUPPORT_SPL
31 int rv;
32 struct udevice *dev;
33 rv = uclass_get_device(UCLASS_RAM, 0, &dev);
34 if (rv) {
35 debug("DRAM init failed: %d\n", rv);
36 return rv;
37 }
38
39 #endif
40 return fdtdec_setup_mem_size_base();
41 }
42
dram_init_banksize(void)43 int dram_init_banksize(void)
44 {
45 return fdtdec_setup_memory_banksize();
46 }
47
board_early_init_f(void)48 int board_early_init_f(void)
49 {
50 return 0;
51 }
52
53 #ifdef CONFIG_SPL_BUILD
54 #ifdef CONFIG_SPL_OS_BOOT
spl_start_uboot(void)55 int spl_start_uboot(void)
56 {
57 debug("SPL: booting kernel\n");
58 /* break into full u-boot on 'c' */
59 return serial_tstc() && serial_getc() == 'c';
60 }
61 #endif
62
spl_dram_init(void)63 int spl_dram_init(void)
64 {
65 struct udevice *dev;
66 int rv;
67 rv = uclass_get_device(UCLASS_RAM, 0, &dev);
68 if (rv)
69 debug("DRAM init failed: %d\n", rv);
70 return rv;
71 }
spl_board_init(void)72 void spl_board_init(void)
73 {
74 spl_dram_init();
75 preloader_console_init();
76 arch_cpu_init(); /* to configure mpu for sdram rw permissions */
77 }
spl_boot_device(void)78 u32 spl_boot_device(void)
79 {
80 return BOOT_DEVICE_XIP;
81 }
82
83 #endif
get_board_rev(void)84 u32 get_board_rev(void)
85 {
86 return 0;
87 }
88
board_late_init(void)89 int board_late_init(void)
90 {
91 struct gpio_desc gpio = {};
92 int node;
93
94 node = fdt_node_offset_by_compatible(gd->fdt_blob, 0, "st,led1");
95 if (node < 0)
96 return -1;
97
98 gpio_request_by_name_nodev(offset_to_ofnode(node), "led-gpio", 0, &gpio,
99 GPIOD_IS_OUT);
100
101 if (dm_gpio_is_valid(&gpio)) {
102 dm_gpio_set_value(&gpio, 0);
103 mdelay(10);
104 dm_gpio_set_value(&gpio, 1);
105 }
106
107 /* read button 1*/
108 node = fdt_node_offset_by_compatible(gd->fdt_blob, 0, "st,button1");
109 if (node < 0)
110 return -1;
111
112 gpio_request_by_name_nodev(offset_to_ofnode(node), "button-gpio", 0,
113 &gpio, GPIOD_IS_IN);
114
115 if (dm_gpio_is_valid(&gpio)) {
116 if (dm_gpio_get_value(&gpio))
117 puts("usr button is at HIGH LEVEL\n");
118 else
119 puts("usr button is at LOW LEVEL\n");
120 }
121
122 return 0;
123 }
124
board_init(void)125 int board_init(void)
126 {
127 gd->bd->bi_boot_params = gd->bd->bi_dram[0].start + 0x100;
128
129 #ifdef CONFIG_ETH_DESIGNWARE
130 const char *phy_mode;
131 int node;
132
133 node = fdt_node_offset_by_compatible(gd->fdt_blob, 0, "st,stm32-dwmac");
134 if (node < 0)
135 return -1;
136
137 phy_mode = fdt_getprop(gd->fdt_blob, node, "phy-mode", NULL);
138
139 switch (phy_get_interface_by_name(phy_mode)) {
140 case PHY_INTERFACE_MODE_RMII:
141 STM32_SYSCFG->pmc |= SYSCFG_PMC_MII_RMII_SEL;
142 break;
143 case PHY_INTERFACE_MODE_MII:
144 STM32_SYSCFG->pmc &= ~SYSCFG_PMC_MII_RMII_SEL;
145 break;
146 default:
147 printf("PHY interface %s not supported !\n", phy_mode);
148 }
149 #endif
150
151 #if defined(CONFIG_CMD_BMP)
152 bmp_display((ulong)stmicroelectronics_uboot_logo_8bit_rle,
153 BMP_ALIGN_CENTER, BMP_ALIGN_CENTER);
154 #endif /* CONFIG_CMD_BMP */
155
156 return 0;
157 }
158