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;
26 #ifndef CONFIG_SUPPORT_SPL
29 rv = uclass_get_device(UCLASS_RAM, 0, &dev);
31 debug("DRAM init failed: %d\n", rv);
36 return fdtdec_setup_mem_size_base();
39 int dram_init_banksize(void)
41 return fdtdec_setup_memory_banksize();
44 int board_early_init_f(void)
49 #ifdef CONFIG_SPL_BUILD
50 #ifdef CONFIG_SPL_OS_BOOT
51 int spl_start_uboot(void)
53 debug("SPL: booting kernel\n");
54 /* break into full u-boot on 'c' */
55 return serial_tstc() && serial_getc() == 'c';
59 int spl_dram_init(void)
63 rv = uclass_get_device(UCLASS_RAM, 0, &dev);
65 debug("DRAM init failed: %d\n", rv);
68 void spl_board_init(void)
71 preloader_console_init();
72 arch_cpu_init(); /* to configure mpu for sdram rw permissions */
74 u32 spl_boot_device(void)
76 return BOOT_DEVICE_XIP;
80 u32 get_board_rev(void)
85 int board_late_init(void)
87 struct gpio_desc gpio = {};
90 node = fdt_node_offset_by_compatible(gd->fdt_blob, 0, "st,led1");
94 gpio_request_by_name_nodev(offset_to_ofnode(node), "led-gpio", 0, &gpio,
97 if (dm_gpio_is_valid(&gpio)) {
98 dm_gpio_set_value(&gpio, 0);
100 dm_gpio_set_value(&gpio, 1);
104 node = fdt_node_offset_by_compatible(gd->fdt_blob, 0, "st,button1");
108 gpio_request_by_name_nodev(offset_to_ofnode(node), "button-gpio", 0,
111 if (dm_gpio_is_valid(&gpio)) {
112 if (dm_gpio_get_value(&gpio))
113 puts("usr button is at HIGH LEVEL\n");
115 puts("usr button is at LOW LEVEL\n");
123 gd->bd->bi_boot_params = gd->bd->bi_dram[0].start + 0x100;
125 #ifdef CONFIG_ETH_DESIGNWARE
127 STM32_SYSCFG->pmc |= SYSCFG_PMC_MII_RMII_SEL;
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 */