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+
13 #include <asm/armv7m.h>
14 #include <asm/arch/stm32.h>
15 #include <asm/arch/gpio.h>
16 #include <asm/arch/stm32_periph.h>
17 #include <asm/arch/syscfg.h>
20 DECLARE_GLOBAL_DATA_PTR;
22 int get_memory_base_size(fdt_addr_t *mr_base, fdt_addr_t *mr_size)
26 mr_node = fdt_path_offset(gd->fdt_blob, "/memory");
29 *mr_base = fdtdec_get_addr_size_auto_noparent(gd->fdt_blob, mr_node,
30 "reg", 0, mr_size, false);
31 debug("mr_base = %lx, mr_size= %lx\n", *mr_base, *mr_size);
38 fdt_addr_t mr_base, mr_size;
40 #ifndef CONFIG_SUPPORT_SPL
42 rv = uclass_get_device(UCLASS_RAM, 0, &dev);
44 debug("DRAM init failed: %d\n", rv);
49 rv = get_memory_base_size(&mr_base, &mr_size);
52 gd->ram_size = mr_size;
53 gd->ram_top = mr_base;
58 int dram_init_banksize(void)
60 fdt_addr_t mr_base, mr_size;
61 get_memory_base_size(&mr_base, &mr_size);
63 * Fill in global info with description of SRAM configuration
65 gd->bd->bi_dram[0].start = mr_base;
66 gd->bd->bi_dram[0].size = mr_size;
71 int board_early_init_f(void)
76 #ifdef CONFIG_SPL_BUILD
77 #ifdef CONFIG_SPL_OS_BOOT
78 int spl_start_uboot(void)
80 debug("SPL: booting kernel\n");
81 /* break into full u-boot on 'c' */
82 return serial_tstc() && serial_getc() == 'c';
86 int spl_dram_init(void)
90 rv = uclass_get_device(UCLASS_RAM, 0, &dev);
92 debug("DRAM init failed: %d\n", rv);
95 void spl_board_init(void)
98 preloader_console_init();
99 arch_cpu_init(); /* to configure mpu for sdram rw permissions */
101 u32 spl_boot_device(void)
103 return BOOT_DEVICE_XIP;
107 u32 get_board_rev(void)
112 int board_late_init(void)
114 struct gpio_desc gpio = {};
117 node = fdt_node_offset_by_compatible(gd->fdt_blob, 0, "st,led1");
121 gpio_request_by_name_nodev(offset_to_ofnode(node), "led-gpio", 0, &gpio,
124 if (dm_gpio_is_valid(&gpio)) {
125 dm_gpio_set_value(&gpio, 0);
127 dm_gpio_set_value(&gpio, 1);
131 node = fdt_node_offset_by_compatible(gd->fdt_blob, 0, "st,button1");
135 gpio_request_by_name_nodev(offset_to_ofnode(node), "button-gpio", 0,
138 if (dm_gpio_is_valid(&gpio)) {
139 if (dm_gpio_get_value(&gpio))
140 puts("usr button is at HIGH LEVEL\n");
142 puts("usr button is at LOW LEVEL\n");
150 gd->bd->bi_boot_params = gd->bd->bi_dram[0].start + 0x100;
152 #ifdef CONFIG_ETH_DESIGNWARE
154 STM32_SYSCFG->pmc |= SYSCFG_PMC_MII_RMII_SEL;