| // SPDX-License-Identifier: GPL-2.0+ |
| /* |
| * Copyright (C) 2016, STMicroelectronics - All Rights Reserved |
| * Author(s): Vikas Manocha, <vikas.manocha@st.com> for STMicroelectronics. |
| */ |
| |
| #include <common.h> |
| #include <dm.h> |
| #include <init.h> |
| #include <lcd.h> |
| #include <log.h> |
| #include <miiphy.h> |
| #include <phy_interface.h> |
| #include <ram.h> |
| #include <serial.h> |
| #include <spl.h> |
| #include <splash.h> |
| #include <st_logo_data.h> |
| #include <video.h> |
| #include <asm/io.h> |
| #include <asm/armv7m.h> |
| #include <asm/arch/stm32.h> |
| #include <asm/arch/gpio.h> |
| #include <asm/arch/syscfg.h> |
| #include <asm/gpio.h> |
| #include <linux/delay.h> |
| |
| DECLARE_GLOBAL_DATA_PTR; |
| |
| int dram_init(void) |
| { |
| #ifndef CONFIG_SUPPORT_SPL |
| int rv; |
| struct udevice *dev; |
| rv = uclass_get_device(UCLASS_RAM, 0, &dev); |
| if (rv) { |
| debug("DRAM init failed: %d\n", rv); |
| return rv; |
| } |
| |
| #endif |
| return fdtdec_setup_mem_size_base(); |
| } |
| |
| int dram_init_banksize(void) |
| { |
| return fdtdec_setup_memory_banksize(); |
| } |
| |
| int board_early_init_f(void) |
| { |
| return 0; |
| } |
| |
| #ifdef CONFIG_SPL_BUILD |
| #ifdef CONFIG_SPL_OS_BOOT |
| int spl_start_uboot(void) |
| { |
| debug("SPL: booting kernel\n"); |
| /* break into full u-boot on 'c' */ |
| return serial_tstc() && serial_getc() == 'c'; |
| } |
| #endif |
| |
| int spl_dram_init(void) |
| { |
| struct udevice *dev; |
| int rv; |
| rv = uclass_get_device(UCLASS_RAM, 0, &dev); |
| if (rv) |
| debug("DRAM init failed: %d\n", rv); |
| return rv; |
| } |
| void spl_board_init(void) |
| { |
| spl_dram_init(); |
| preloader_console_init(); |
| arch_cpu_init(); /* to configure mpu for sdram rw permissions */ |
| } |
| u32 spl_boot_device(void) |
| { |
| return BOOT_DEVICE_XIP; |
| } |
| |
| #endif |
| u32 get_board_rev(void) |
| { |
| return 0; |
| } |
| |
| int board_late_init(void) |
| { |
| struct gpio_desc gpio = {}; |
| int node; |
| |
| node = fdt_node_offset_by_compatible(gd->fdt_blob, 0, "st,led1"); |
| if (node < 0) |
| return -1; |
| |
| gpio_request_by_name_nodev(offset_to_ofnode(node), "led-gpio", 0, &gpio, |
| GPIOD_IS_OUT); |
| |
| if (dm_gpio_is_valid(&gpio)) { |
| dm_gpio_set_value(&gpio, 0); |
| mdelay(10); |
| dm_gpio_set_value(&gpio, 1); |
| } |
| |
| /* read button 1*/ |
| node = fdt_node_offset_by_compatible(gd->fdt_blob, 0, "st,button1"); |
| if (node < 0) |
| return -1; |
| |
| gpio_request_by_name_nodev(offset_to_ofnode(node), "button-gpio", 0, |
| &gpio, GPIOD_IS_IN); |
| |
| if (dm_gpio_is_valid(&gpio)) { |
| if (dm_gpio_get_value(&gpio)) |
| puts("usr button is at HIGH LEVEL\n"); |
| else |
| puts("usr button is at LOW LEVEL\n"); |
| } |
| |
| return 0; |
| } |
| |
| int board_init(void) |
| { |
| gd->bd->bi_boot_params = gd->bd->bi_dram[0].start + 0x100; |
| |
| #ifdef CONFIG_ETH_DESIGNWARE |
| const char *phy_mode; |
| int node; |
| |
| node = fdt_node_offset_by_compatible(gd->fdt_blob, 0, "st,stm32-dwmac"); |
| if (node < 0) |
| return -1; |
| |
| phy_mode = fdt_getprop(gd->fdt_blob, node, "phy-mode", NULL); |
| |
| switch (phy_get_interface_by_name(phy_mode)) { |
| case PHY_INTERFACE_MODE_RMII: |
| STM32_SYSCFG->pmc |= SYSCFG_PMC_MII_RMII_SEL; |
| break; |
| case PHY_INTERFACE_MODE_MII: |
| STM32_SYSCFG->pmc &= ~SYSCFG_PMC_MII_RMII_SEL; |
| break; |
| default: |
| printf("PHY interface %s not supported !\n", phy_mode); |
| } |
| #endif |
| |
| #if defined(CONFIG_CMD_BMP) |
| bmp_display((ulong)stmicroelectronics_uboot_logo_8bit_rle, |
| BMP_ALIGN_CENTER, BMP_ALIGN_CENTER); |
| #endif /* CONFIG_CMD_BMP */ |
| |
| return 0; |
| } |