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.
12 #include <phy_interface.h>
17 #include <st_logo_data.h>
19 #include <asm/global_data.h>
21 #include <asm/armv7m.h>
22 #include <asm/arch/stm32.h>
23 #include <asm/arch/syscfg.h>
25 #include <linux/delay.h>
27 DECLARE_GLOBAL_DATA_PTR;
31 #ifndef CONFIG_SPL_BUILD
34 rv = uclass_get_device(UCLASS_RAM, 0, &dev);
36 debug("DRAM init failed: %d\n", rv);
41 return fdtdec_setup_mem_size_base();
44 int dram_init_banksize(void)
46 return fdtdec_setup_memory_banksize();
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)
70 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 int board_late_init(void)
82 struct gpio_desc gpio = {};
85 node = fdt_node_offset_by_compatible(gd->fdt_blob, 0, "st,led1");
89 gpio_request_by_name_nodev(offset_to_ofnode(node), "led-gpio", 0, &gpio,
92 if (dm_gpio_is_valid(&gpio)) {
93 dm_gpio_set_value(&gpio, 0);
95 dm_gpio_set_value(&gpio, 1);
99 node = fdt_node_offset_by_compatible(gd->fdt_blob, 0, "st,button1");
103 gpio_request_by_name_nodev(offset_to_ofnode(node), "button-gpio", 0,
106 if (dm_gpio_is_valid(&gpio)) {
107 if (dm_gpio_get_value(&gpio))
108 puts("usr button is at HIGH LEVEL\n");
110 puts("usr button is at LOW LEVEL\n");
118 #ifdef CONFIG_ETH_DESIGNWARE
121 node = ofnode_by_compatible(ofnode_null(), "st,stm32-dwmac");
122 if (!ofnode_valid(node))
125 switch (ofnode_read_phy_mode(node)) {
126 case PHY_INTERFACE_MODE_RMII:
127 STM32_SYSCFG->pmc |= SYSCFG_PMC_MII_RMII_SEL;
129 case PHY_INTERFACE_MODE_MII:
130 STM32_SYSCFG->pmc &= ~SYSCFG_PMC_MII_RMII_SEL;
133 printf("Unsupported PHY interface!\n");
137 #if defined(CONFIG_CMD_BMP)
138 bmp_display((ulong)stmicroelectronics_uboot_logo_8bit_rle,
139 BMP_ALIGN_CENTER, BMP_ALIGN_CENTER);
140 #endif /* CONFIG_CMD_BMP */