Merge tag 'u-boot-imx-20211020' of https://source.denx.de/u-boot/custodians/u-boot-imx
[platform/kernel/u-boot.git] / board / st / stm32f746-disco / stm32f746-disco.c
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 <log.h>
12 #include <miiphy.h>
13 #include <phy_interface.h>
14 #include <ram.h>
15 #include <serial.h>
16 #include <spl.h>
17 #include <splash.h>
18 #include <st_logo_data.h>
19 #include <video.h>
20 #include <asm/global_data.h>
21 #include <asm/io.h>
22 #include <asm/armv7m.h>
23 #include <asm/arch/stm32.h>
24 #include <asm/arch/gpio.h>
25 #include <asm/arch/syscfg.h>
26 #include <asm/gpio.h>
27 #include <linux/delay.h>
28
29 DECLARE_GLOBAL_DATA_PTR;
30
31 int dram_init(void)
32 {
33 #ifndef CONFIG_SUPPORT_SPL
34         int rv;
35         struct udevice *dev;
36         rv = uclass_get_device(UCLASS_RAM, 0, &dev);
37         if (rv) {
38                 debug("DRAM init failed: %d\n", rv);
39                 return rv;
40         }
41
42 #endif
43         return fdtdec_setup_mem_size_base();
44 }
45
46 int dram_init_banksize(void)
47 {
48         return fdtdec_setup_memory_banksize();
49 }
50
51 #ifdef CONFIG_SPL_BUILD
52 #ifdef CONFIG_SPL_OS_BOOT
53 int spl_start_uboot(void)
54 {
55         debug("SPL: booting kernel\n");
56         /* break into full u-boot on 'c' */
57         return serial_tstc() && serial_getc() == 'c';
58 }
59 #endif
60
61 int spl_dram_init(void)
62 {
63         struct udevice *dev;
64         int rv;
65         rv = uclass_get_device(UCLASS_RAM, 0, &dev);
66         if (rv)
67                 debug("DRAM init failed: %d\n", rv);
68         return rv;
69 }
70 void spl_board_init(void)
71 {
72         preloader_console_init();
73         spl_dram_init();
74         arch_cpu_init(); /* to configure mpu for sdram rw permissions */
75 }
76 u32 spl_boot_device(void)
77 {
78         return BOOT_DEVICE_XIP;
79 }
80 #endif
81
82 int board_late_init(void)
83 {
84         struct gpio_desc gpio = {};
85         int node;
86
87         node = fdt_node_offset_by_compatible(gd->fdt_blob, 0, "st,led1");
88         if (node < 0)
89                 return -1;
90
91         gpio_request_by_name_nodev(offset_to_ofnode(node), "led-gpio", 0, &gpio,
92                                    GPIOD_IS_OUT);
93
94         if (dm_gpio_is_valid(&gpio)) {
95                 dm_gpio_set_value(&gpio, 0);
96                 mdelay(10);
97                 dm_gpio_set_value(&gpio, 1);
98         }
99
100         /* read button 1*/
101         node = fdt_node_offset_by_compatible(gd->fdt_blob, 0, "st,button1");
102         if (node < 0)
103                 return -1;
104
105         gpio_request_by_name_nodev(offset_to_ofnode(node), "button-gpio", 0,
106                                    &gpio, GPIOD_IS_IN);
107
108         if (dm_gpio_is_valid(&gpio)) {
109                 if (dm_gpio_get_value(&gpio))
110                         puts("usr button is at HIGH LEVEL\n");
111                 else
112                         puts("usr button is at LOW LEVEL\n");
113         }
114
115         return 0;
116 }
117
118 int board_init(void)
119 {
120 #ifdef CONFIG_ETH_DESIGNWARE
121         const char *phy_mode;
122         int node;
123
124         node = fdt_node_offset_by_compatible(gd->fdt_blob, 0, "st,stm32-dwmac");
125         if (node < 0)
126                 return -1;
127
128         phy_mode = fdt_getprop(gd->fdt_blob, node, "phy-mode", NULL);
129
130         switch (phy_get_interface_by_name(phy_mode)) {
131         case PHY_INTERFACE_MODE_RMII:
132                 STM32_SYSCFG->pmc |= SYSCFG_PMC_MII_RMII_SEL;
133                 break;
134         case PHY_INTERFACE_MODE_MII:
135                 STM32_SYSCFG->pmc &= ~SYSCFG_PMC_MII_RMII_SEL;
136                 break;
137         default:
138                 printf("PHY interface %s not supported !\n", phy_mode);
139         }
140 #endif
141
142 #if defined(CONFIG_CMD_BMP)
143         bmp_display((ulong)stmicroelectronics_uboot_logo_8bit_rle,
144                     BMP_ALIGN_CENTER, BMP_ALIGN_CENTER);
145 #endif /* CONFIG_CMD_BMP */
146
147         return 0;
148 }