1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) 2016, STMicroelectronics - All Rights Reserved
4 * Author(s): Vikas Manocha, <vikas.manocha@st.com> for STMicroelectronics.
13 #include <st_logo_data.h>
16 #include <asm/armv7m.h>
17 #include <asm/arch/stm32.h>
18 #include <asm/arch/gpio.h>
19 #include <asm/arch/syscfg.h>
22 DECLARE_GLOBAL_DATA_PTR;
24 int get_memory_base_size(fdt_addr_t *mr_base, fdt_addr_t *mr_size)
28 mr_node = fdt_path_offset(gd->fdt_blob, "/memory");
31 *mr_base = fdtdec_get_addr_size_auto_noparent(gd->fdt_blob, mr_node,
32 "reg", 0, mr_size, false);
33 debug("mr_base = %lx, mr_size= %lx\n", *mr_base, *mr_size);
40 fdt_addr_t mr_base, mr_size;
42 #ifndef CONFIG_SUPPORT_SPL
44 rv = uclass_get_device(UCLASS_RAM, 0, &dev);
46 debug("DRAM init failed: %d\n", rv);
51 rv = get_memory_base_size(&mr_base, &mr_size);
54 gd->ram_size = mr_size;
55 gd->ram_top = mr_base;
60 int dram_init_banksize(void)
62 fdt_addr_t mr_base, mr_size;
63 get_memory_base_size(&mr_base, &mr_size);
65 * Fill in global info with description of SRAM configuration
67 gd->bd->bi_dram[0].start = mr_base;
68 gd->bd->bi_dram[0].size = mr_size;
73 int board_early_init_f(void)
78 #ifdef CONFIG_SPL_BUILD
79 #ifdef CONFIG_SPL_OS_BOOT
80 int spl_start_uboot(void)
82 debug("SPL: booting kernel\n");
83 /* break into full u-boot on 'c' */
84 return serial_tstc() && serial_getc() == 'c';
88 int spl_dram_init(void)
92 rv = uclass_get_device(UCLASS_RAM, 0, &dev);
94 debug("DRAM init failed: %d\n", rv);
97 void spl_board_init(void)
100 preloader_console_init();
101 arch_cpu_init(); /* to configure mpu for sdram rw permissions */
103 u32 spl_boot_device(void)
105 return BOOT_DEVICE_XIP;
109 u32 get_board_rev(void)
114 int board_late_init(void)
116 struct gpio_desc gpio = {};
119 node = fdt_node_offset_by_compatible(gd->fdt_blob, 0, "st,led1");
123 gpio_request_by_name_nodev(offset_to_ofnode(node), "led-gpio", 0, &gpio,
126 if (dm_gpio_is_valid(&gpio)) {
127 dm_gpio_set_value(&gpio, 0);
129 dm_gpio_set_value(&gpio, 1);
133 node = fdt_node_offset_by_compatible(gd->fdt_blob, 0, "st,button1");
137 gpio_request_by_name_nodev(offset_to_ofnode(node), "button-gpio", 0,
140 if (dm_gpio_is_valid(&gpio)) {
141 if (dm_gpio_get_value(&gpio))
142 puts("usr button is at HIGH LEVEL\n");
144 puts("usr button is at LOW LEVEL\n");
152 gd->bd->bi_boot_params = gd->bd->bi_dram[0].start + 0x100;
154 #ifdef CONFIG_ETH_DESIGNWARE
156 STM32_SYSCFG->pmc |= SYSCFG_PMC_MII_RMII_SEL;
159 #if defined(CONFIG_CMD_BMP)
160 bmp_display((ulong)stmicroelectronics_uboot_logo_8bit_rle,
161 BMP_ALIGN_CENTER, BMP_ALIGN_CENTER);
162 #endif /* CONFIG_CMD_BMP */