2 * Copyright (C) 2016, STMicroelectronics - All Rights Reserved
3 * Author(s): Vikas Manocha, <vikas.manocha@st.com> for STMicroelectronics.
5 * SPDX-License-Identifier: GPL-2.0+
14 #include <st_logo_data.h>
17 #include <asm/armv7m.h>
18 #include <asm/arch/stm32.h>
19 #include <asm/arch/gpio.h>
20 #include <asm/arch/syscfg.h>
23 DECLARE_GLOBAL_DATA_PTR;
25 int get_memory_base_size(fdt_addr_t *mr_base, fdt_addr_t *mr_size)
29 mr_node = fdt_path_offset(gd->fdt_blob, "/memory");
32 *mr_base = fdtdec_get_addr_size_auto_noparent(gd->fdt_blob, mr_node,
33 "reg", 0, mr_size, false);
34 debug("mr_base = %lx, mr_size= %lx\n", *mr_base, *mr_size);
41 fdt_addr_t mr_base, mr_size;
43 #ifndef CONFIG_SUPPORT_SPL
45 rv = uclass_get_device(UCLASS_RAM, 0, &dev);
47 debug("DRAM init failed: %d\n", rv);
52 rv = get_memory_base_size(&mr_base, &mr_size);
55 gd->ram_size = mr_size;
56 gd->ram_top = mr_base;
61 int dram_init_banksize(void)
63 fdt_addr_t mr_base, mr_size;
64 get_memory_base_size(&mr_base, &mr_size);
66 * Fill in global info with description of SRAM configuration
68 gd->bd->bi_dram[0].start = mr_base;
69 gd->bd->bi_dram[0].size = mr_size;
74 int board_early_init_f(void)
79 #ifdef CONFIG_SPL_BUILD
80 #ifdef CONFIG_SPL_OS_BOOT
81 int spl_start_uboot(void)
83 debug("SPL: booting kernel\n");
84 /* break into full u-boot on 'c' */
85 return serial_tstc() && serial_getc() == 'c';
89 int spl_dram_init(void)
93 rv = uclass_get_device(UCLASS_RAM, 0, &dev);
95 debug("DRAM init failed: %d\n", rv);
98 void spl_board_init(void)
101 preloader_console_init();
102 arch_cpu_init(); /* to configure mpu for sdram rw permissions */
104 u32 spl_boot_device(void)
106 return BOOT_DEVICE_XIP;
110 u32 get_board_rev(void)
115 int board_late_init(void)
117 struct gpio_desc gpio = {};
120 node = fdt_node_offset_by_compatible(gd->fdt_blob, 0, "st,led1");
124 gpio_request_by_name_nodev(offset_to_ofnode(node), "led-gpio", 0, &gpio,
127 if (dm_gpio_is_valid(&gpio)) {
128 dm_gpio_set_value(&gpio, 0);
130 dm_gpio_set_value(&gpio, 1);
134 node = fdt_node_offset_by_compatible(gd->fdt_blob, 0, "st,button1");
138 gpio_request_by_name_nodev(offset_to_ofnode(node), "button-gpio", 0,
141 if (dm_gpio_is_valid(&gpio)) {
142 if (dm_gpio_get_value(&gpio))
143 puts("usr button is at HIGH LEVEL\n");
145 puts("usr button is at LOW LEVEL\n");
153 gd->bd->bi_boot_params = gd->bd->bi_dram[0].start + 0x100;
155 #ifdef CONFIG_ETH_DESIGNWARE
157 STM32_SYSCFG->pmc |= SYSCFG_PMC_MII_RMII_SEL;
160 #if defined(CONFIG_CMD_BMP)
161 bmp_display((ulong)stmicroelectronics_uboot_logo_8bit_rle,
162 BMP_ALIGN_CENTER, BMP_ALIGN_CENTER);
163 #endif /* CONFIG_CMD_BMP */