| // SPDX-License-Identifier: GPL-2.0+ |
| /* |
| * Copyright (C) 2019 |
| * Author(s): Giulio Benetti <giulio.benetti@benettiengineering.com> |
| */ |
| |
| #include <dm.h> |
| #include <init.h> |
| #include <log.h> |
| #include <ram.h> |
| #include <spl.h> |
| #include <asm/global_data.h> |
| #include <asm/io.h> |
| #include <asm/armv7m.h> |
| #include <serial.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(); |
| } |
| |
| #ifdef CONFIG_XPL_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) |
| { |
| preloader_console_init(); |
| spl_dram_init(); |
| arch_cpu_init(); /* to configure mpu for sdram rw permissions */ |
| } |
| |
| u32 spl_boot_device(void) |
| { |
| return BOOT_DEVICE_MMC1; |
| } |
| #endif |
| |
| int board_init(void) |
| { |
| gd->bd->bi_boot_params = gd->bd->bi_dram[0].start + 0x100; |
| |
| return 0; |
| } |