| /* |
| * (C) Copyright 2010 |
| * Texas Instruments, <www.ti.com> |
| * |
| * Aneesh V <aneesh@ti.com> |
| * |
| * SPDX-License-Identifier: GPL-2.0+ |
| */ |
| #include <common.h> |
| #include <dm.h> |
| #include <spl.h> |
| #include <asm/u-boot.h> |
| #include <nand.h> |
| #include <fat.h> |
| #include <version.h> |
| #include <image.h> |
| #include <malloc.h> |
| #include <dm/root.h> |
| #include <linux/compiler.h> |
| |
| DECLARE_GLOBAL_DATA_PTR; |
| |
| #ifndef CONFIG_SYS_UBOOT_START |
| #define CONFIG_SYS_UBOOT_START CONFIG_SYS_TEXT_BASE |
| #endif |
| #ifndef CONFIG_SYS_MONITOR_LEN |
| /* Unknown U-Boot size, let's assume it will not be more than 200 KB */ |
| #define CONFIG_SYS_MONITOR_LEN (200 * 1024) |
| #endif |
| |
| u32 *boot_params_ptr = NULL; |
| struct spl_image_info spl_image; |
| |
| /* Define board data structure */ |
| static bd_t bdata __attribute__ ((section(".data"))); |
| |
| /* |
| * Board-specific Platform code can reimplement show_boot_progress () if needed |
| */ |
| __weak void show_boot_progress(int val) {} |
| |
| /* |
| * Default function to determine if u-boot or the OS should |
| * be started. This implementation always returns 1. |
| * |
| * Please implement your own board specific funcion to do this. |
| * |
| * RETURN |
| * 0 to not start u-boot |
| * positive if u-boot should start |
| */ |
| #ifdef CONFIG_SPL_OS_BOOT |
| __weak int spl_start_uboot(void) |
| { |
| puts("SPL: Please implement spl_start_uboot() for your board\n"); |
| puts("SPL: Direct Linux boot not active!\n"); |
| return 1; |
| } |
| |
| /* |
| * Weak default function for arch specific zImage check. Return zero |
| * and fill start and end address if image is recognized. |
| */ |
| int __weak bootz_setup(ulong image, ulong *start, ulong *end) |
| { |
| return 1; |
| } |
| #endif |
| |
| /* |
| * Weak default function for board specific cleanup/preparation before |
| * Linux boot. Some boards/platforms might not need it, so just provide |
| * an empty stub here. |
| */ |
| __weak void spl_board_prepare_for_linux(void) |
| { |
| /* Nothing to do! */ |
| } |
| |
| __weak void spl_board_prepare_for_boot(void) |
| { |
| /* Nothing to do! */ |
| } |
| |
| void spl_set_header_raw_uboot(struct spl_image_info *spl_image) |
| { |
| spl_image->size = CONFIG_SYS_MONITOR_LEN; |
| spl_image->entry_point = CONFIG_SYS_UBOOT_START; |
| spl_image->load_addr = CONFIG_SYS_TEXT_BASE; |
| spl_image->os = IH_OS_U_BOOT; |
| spl_image->name = "U-Boot"; |
| } |
| |
| int spl_parse_image_header(struct spl_image_info *spl_image, |
| const struct image_header *header) |
| { |
| u32 header_size = sizeof(struct image_header); |
| |
| if (image_get_magic(header) == IH_MAGIC) { |
| if (spl_image->flags & SPL_COPY_PAYLOAD_ONLY) { |
| /* |
| * On some system (e.g. powerpc), the load-address and |
| * entry-point is located at address 0. We can't load |
| * to 0-0x40. So skip header in this case. |
| */ |
| spl_image->load_addr = image_get_load(header); |
| spl_image->entry_point = image_get_ep(header); |
| spl_image->size = image_get_data_size(header); |
| } else { |
| spl_image->entry_point = image_get_load(header); |
| /* Load including the header */ |
| spl_image->load_addr = spl_image->entry_point - |
| header_size; |
| spl_image->size = image_get_data_size(header) + |
| header_size; |
| } |
| spl_image->os = image_get_os(header); |
| spl_image->name = image_get_name(header); |
| debug("spl: payload image: %.*s load addr: 0x%x size: %d\n", |
| (int)sizeof(spl_image->name), spl_image->name, |
| spl_image->load_addr, spl_image->size); |
| } else { |
| #ifdef CONFIG_SPL_PANIC_ON_RAW_IMAGE |
| /* |
| * CONFIG_SPL_PANIC_ON_RAW_IMAGE is defined when the |
| * code which loads images in SPL cannot guarantee that |
| * absolutely all read errors will be reported. |
| * An example is the LPC32XX MLC NAND driver, which |
| * will consider that a completely unreadable NAND block |
| * is bad, and thus should be skipped silently. |
| */ |
| panic("** no mkimage signature but raw image not supported"); |
| #endif |
| |
| #ifdef CONFIG_SPL_OS_BOOT |
| ulong start, end; |
| |
| if (!bootz_setup((ulong)header, &start, &end)) { |
| spl_image->name = "Linux"; |
| spl_image->os = IH_OS_LINUX; |
| spl_image->load_addr = CONFIG_SYS_LOAD_ADDR; |
| spl_image->entry_point = CONFIG_SYS_LOAD_ADDR; |
| spl_image->size = end - start; |
| debug("spl: payload zImage, load addr: 0x%x size: %d\n", |
| spl_image->load_addr, spl_image->size); |
| return 0; |
| } |
| #endif |
| |
| #ifdef CONFIG_SPL_ABORT_ON_RAW_IMAGE |
| /* Signature not found, proceed to other boot methods. */ |
| return -EINVAL; |
| #else |
| /* Signature not found - assume u-boot.bin */ |
| debug("mkimage signature not found - ih_magic = %x\n", |
| header->ih_magic); |
| spl_set_header_raw_uboot(spl_image); |
| #endif |
| } |
| return 0; |
| } |
| |
| __weak void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image) |
| { |
| typedef void __noreturn (*image_entry_noargs_t)(void); |
| |
| image_entry_noargs_t image_entry = |
| (image_entry_noargs_t)(unsigned long)spl_image->entry_point; |
| |
| debug("image entry point: 0x%X\n", spl_image->entry_point); |
| image_entry(); |
| } |
| |
| #ifndef CONFIG_SPL_LOAD_FIT_ADDRESS |
| # define CONFIG_SPL_LOAD_FIT_ADDRESS 0 |
| #endif |
| |
| #if defined(CONFIG_SPL_RAM_DEVICE) || defined(CONFIG_SPL_DFU_SUPPORT) |
| static ulong spl_ram_load_read(struct spl_load_info *load, ulong sector, |
| ulong count, void *buf) |
| { |
| debug("%s: sector %lx, count %lx, buf %lx\n", |
| __func__, sector, count, (ulong)buf); |
| memcpy(buf, (void *)(CONFIG_SPL_LOAD_FIT_ADDRESS + sector), count); |
| return count; |
| } |
| |
| static int spl_ram_load_image(struct spl_boot_device *bootdev) |
| { |
| struct image_header *header; |
| |
| header = (struct image_header *)CONFIG_SPL_LOAD_FIT_ADDRESS; |
| |
| #if defined(CONFIG_SPL_DFU_SUPPORT) |
| if (bootdev->boot_device == BOOT_DEVICE_DFU) |
| spl_dfu_cmd(0, "dfu_alt_info_ram", "ram", "0"); |
| #endif |
| |
| if (IS_ENABLED(CONFIG_SPL_LOAD_FIT) && |
| image_get_magic(header) == FDT_MAGIC) { |
| struct spl_load_info load; |
| |
| debug("Found FIT\n"); |
| load.bl_len = 1; |
| load.read = spl_ram_load_read; |
| spl_load_simple_fit(&load, 0, header); |
| } else { |
| debug("Legacy image\n"); |
| /* |
| * Get the header. It will point to an address defined by |
| * handoff which will tell where the image located inside |
| * the flash. For now, it will temporary fixed to address |
| * pointed by U-Boot. |
| */ |
| header = (struct image_header *) |
| (CONFIG_SYS_TEXT_BASE - sizeof(struct image_header)); |
| |
| spl_parse_image_header(&spl_image, header); |
| } |
| |
| return 0; |
| } |
| SPL_LOAD_IMAGE_METHOD(0, BOOT_DEVICE_RAM, spl_ram_load_image); |
| #if defined(CONFIG_SPL_DFU_SUPPORT) |
| SPL_LOAD_IMAGE_METHOD(0, BOOT_DEVICE_DFU, spl_ram_load_image); |
| #endif |
| #endif |
| |
| int spl_init(void) |
| { |
| int ret; |
| |
| debug("spl_init()\n"); |
| #if defined(CONFIG_SYS_MALLOC_F_LEN) |
| #ifdef CONFIG_MALLOC_F_ADDR |
| gd->malloc_base = CONFIG_MALLOC_F_ADDR; |
| #endif |
| gd->malloc_limit = CONFIG_SYS_MALLOC_F_LEN; |
| gd->malloc_ptr = 0; |
| #endif |
| if (CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)) { |
| ret = fdtdec_setup(); |
| if (ret) { |
| debug("fdtdec_setup() returned error %d\n", ret); |
| return ret; |
| } |
| } |
| if (IS_ENABLED(CONFIG_SPL_DM)) { |
| /* With CONFIG_OF_PLATDATA, bring in all devices */ |
| ret = dm_init_and_scan(!CONFIG_IS_ENABLED(OF_PLATDATA)); |
| if (ret) { |
| debug("dm_init_and_scan() returned error %d\n", ret); |
| return ret; |
| } |
| } |
| gd->flags |= GD_FLG_SPL_INIT; |
| |
| return 0; |
| } |
| |
| #ifndef BOOT_DEVICE_NONE |
| #define BOOT_DEVICE_NONE 0xdeadbeef |
| #endif |
| |
| static u32 spl_boot_list[] = { |
| BOOT_DEVICE_NONE, |
| BOOT_DEVICE_NONE, |
| BOOT_DEVICE_NONE, |
| BOOT_DEVICE_NONE, |
| BOOT_DEVICE_NONE, |
| }; |
| |
| __weak void board_boot_order(u32 *spl_boot_list) |
| { |
| spl_boot_list[0] = spl_boot_device(); |
| } |
| |
| #ifdef CONFIG_SPL_BOARD_LOAD_IMAGE |
| __weak void spl_board_announce_boot_device(void) { } |
| #endif |
| |
| #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT |
| struct boot_device_name { |
| u32 boot_dev; |
| const char *name; |
| }; |
| |
| struct boot_device_name boot_name_table[] = { |
| #ifdef CONFIG_SPL_RAM_DEVICE |
| { BOOT_DEVICE_RAM, "RAM" }, |
| #endif |
| #ifdef CONFIG_SPL_MMC_SUPPORT |
| { BOOT_DEVICE_MMC1, "MMC1" }, |
| { BOOT_DEVICE_MMC2, "MMC2" }, |
| { BOOT_DEVICE_MMC2_2, "MMC2_2" }, |
| #endif |
| #ifdef CONFIG_SPL_NAND_SUPPORT |
| { BOOT_DEVICE_NAND, "NAND" }, |
| #endif |
| #ifdef CONFIG_SPL_ONENAND_SUPPORT |
| { BOOT_DEVICE_ONENAND, "OneNAND" }, |
| #endif |
| #ifdef CONFIG_SPL_NOR_SUPPORT |
| { BOOT_DEVICE_NOR, "NOR" }, |
| #endif |
| #ifdef CONFIG_SPL_YMODEM_SUPPORT |
| { BOOT_DEVICE_UART, "UART" }, |
| #endif |
| #if defined(CONFIG_SPL_SPI_SUPPORT) || defined(CONFIG_SPL_SPI_FLASH_SUPPORT) |
| { BOOT_DEVICE_SPI, "SPI" }, |
| #endif |
| #ifdef CONFIG_SPL_ETH_SUPPORT |
| #ifdef CONFIG_SPL_ETH_DEVICE |
| { BOOT_DEVICE_CPGMAC, "eth device" }, |
| #else |
| { BOOT_DEVICE_CPGMAC, "net" }, |
| #endif |
| #endif |
| #ifdef CONFIG_SPL_USBETH_SUPPORT |
| { BOOT_DEVICE_USBETH, "USB eth" }, |
| #endif |
| #ifdef CONFIG_SPL_USB_SUPPORT |
| { BOOT_DEVICE_USB, "USB" }, |
| #endif |
| #ifdef CONFIG_SPL_DFU_SUPPORT |
| { BOOT_DEVICE_DFU, "USB DFU" }, |
| #endif |
| #ifdef CONFIG_SPL_SATA_SUPPORT |
| { BOOT_DEVICE_SATA, "SATA" }, |
| #endif |
| /* Keep this entry last */ |
| { BOOT_DEVICE_NONE, "unknown boot device" }, |
| }; |
| |
| static void announce_boot_device(u32 boot_device) |
| { |
| int i; |
| |
| puts("Trying to boot from "); |
| |
| #ifdef CONFIG_SPL_BOARD_LOAD_IMAGE |
| if (boot_device == BOOT_DEVICE_BOARD) { |
| spl_board_announce_boot_device(); |
| puts("\n"); |
| return; |
| } |
| #endif |
| for (i = 0; i < ARRAY_SIZE(boot_name_table) - 1; i++) { |
| if (boot_name_table[i].boot_dev == boot_device) |
| break; |
| } |
| |
| printf("%s\n", boot_name_table[i].name); |
| } |
| #else |
| static inline void announce_boot_device(u32 boot_device) { } |
| #endif |
| |
| static struct spl_image_loader *spl_ll_find_loader(uint boot_device) |
| { |
| struct spl_image_loader *drv = |
| ll_entry_start(struct spl_image_loader, spl_image_loader); |
| const int n_ents = |
| ll_entry_count(struct spl_image_loader, spl_image_loader); |
| struct spl_image_loader *entry; |
| |
| for (entry = drv; entry != drv + n_ents; entry++) { |
| if (boot_device == entry->boot_device) |
| return entry; |
| } |
| |
| /* Not found */ |
| return NULL; |
| } |
| |
| static int spl_load_image(u32 boot_device) |
| { |
| struct spl_boot_device bootdev; |
| struct spl_image_loader *loader = spl_ll_find_loader(boot_device); |
| |
| bootdev.boot_device = boot_device; |
| bootdev.boot_device_name = NULL; |
| if (loader) |
| return loader->load_image(&bootdev); |
| |
| switch (boot_device) { |
| #if defined(CONFIG_SPL_SPI_SUPPORT) || defined(CONFIG_SPL_SPI_FLASH_SUPPORT) |
| case BOOT_DEVICE_SPI: |
| return spl_spi_load_image(&bootdev); |
| #endif |
| #ifdef CONFIG_SPL_ETH_SUPPORT |
| case BOOT_DEVICE_CPGMAC: |
| #ifdef CONFIG_SPL_ETH_DEVICE |
| bootdev.boot_device_name = CONFIG_SPL_ETH_DEVICE; |
| #endif |
| return spl_net_load_image(&bootdev); |
| #endif |
| #ifdef CONFIG_SPL_USBETH_SUPPORT |
| case BOOT_DEVICE_USBETH: |
| bootdev.boot_device_name = "usb_ether"; |
| return spl_net_load_image(&bootdev); |
| #endif |
| #ifdef CONFIG_SPL_USB_SUPPORT |
| case BOOT_DEVICE_USB: |
| return spl_usb_load_image(&bootdev); |
| #endif |
| #ifdef CONFIG_SPL_SATA_SUPPORT |
| case BOOT_DEVICE_SATA: |
| return spl_sata_load_image(&bootdev); |
| #endif |
| #ifdef CONFIG_SPL_BOARD_LOAD_IMAGE |
| case BOOT_DEVICE_BOARD: |
| return spl_board_load_image(&bootdev); |
| #endif |
| default: |
| #if defined(CONFIG_SPL_SERIAL_SUPPORT) && defined(CONFIG_SPL_LIBCOMMON_SUPPORT) |
| puts("SPL: Unsupported Boot Device!\n"); |
| #endif |
| return -ENODEV; |
| } |
| |
| return -EINVAL; |
| } |
| |
| void board_init_r(gd_t *dummy1, ulong dummy2) |
| { |
| int i; |
| |
| debug(">>spl:board_init_r()\n"); |
| |
| #if defined(CONFIG_SYS_SPL_MALLOC_START) |
| mem_malloc_init(CONFIG_SYS_SPL_MALLOC_START, |
| CONFIG_SYS_SPL_MALLOC_SIZE); |
| gd->flags |= GD_FLG_FULL_MALLOC_INIT; |
| #endif |
| if (!(gd->flags & GD_FLG_SPL_INIT)) { |
| if (spl_init()) |
| hang(); |
| } |
| #ifndef CONFIG_PPC |
| /* |
| * timer_init() does not exist on PPC systems. The timer is initialized |
| * and enabled (decrementer) in interrupt_init() here. |
| */ |
| timer_init(); |
| #endif |
| |
| #ifdef CONFIG_SPL_BOARD_INIT |
| spl_board_init(); |
| #endif |
| |
| board_boot_order(spl_boot_list); |
| for (i = 0; i < ARRAY_SIZE(spl_boot_list) && |
| spl_boot_list[i] != BOOT_DEVICE_NONE; i++) { |
| announce_boot_device(spl_boot_list[i]); |
| if (!spl_load_image(spl_boot_list[i])) |
| break; |
| } |
| |
| if (i == ARRAY_SIZE(spl_boot_list) || |
| spl_boot_list[i] == BOOT_DEVICE_NONE) { |
| puts("SPL: failed to boot from all boot devices\n"); |
| hang(); |
| } |
| |
| switch (spl_image.os) { |
| case IH_OS_U_BOOT: |
| debug("Jumping to U-Boot\n"); |
| break; |
| #ifdef CONFIG_SPL_OS_BOOT |
| case IH_OS_LINUX: |
| debug("Jumping to Linux\n"); |
| spl_board_prepare_for_linux(); |
| jump_to_image_linux(&spl_image, |
| (void *)CONFIG_SYS_SPL_ARGS_ADDR); |
| #endif |
| default: |
| debug("Unsupported OS image.. Jumping nevertheless..\n"); |
| } |
| #if defined(CONFIG_SYS_MALLOC_F_LEN) && !defined(CONFIG_SYS_SPL_MALLOC_SIZE) |
| debug("SPL malloc() used %#lx bytes (%ld KB)\n", gd->malloc_ptr, |
| gd->malloc_ptr / 1024); |
| #endif |
| |
| debug("loaded - jumping to U-Boot..."); |
| spl_board_prepare_for_boot(); |
| jump_to_image_no_args(&spl_image); |
| } |
| |
| /* |
| * This requires UART clocks to be enabled. In order for this to work the |
| * caller must ensure that the gd pointer is valid. |
| */ |
| void preloader_console_init(void) |
| { |
| gd->bd = &bdata; |
| gd->baudrate = CONFIG_BAUDRATE; |
| |
| serial_init(); /* serial communications setup */ |
| |
| gd->have_console = 1; |
| |
| puts("\nU-Boot SPL " PLAIN_VERSION " (" U_BOOT_DATE " - " \ |
| U_BOOT_TIME ")\n"); |
| #ifdef CONFIG_SPL_DISPLAY_PRINT |
| spl_display_print(); |
| #endif |
| } |
| |
| /** |
| * spl_relocate_stack_gd() - Relocate stack ready for board_init_r() execution |
| * |
| * Sometimes board_init_f() runs with a stack in SRAM but we want to use SDRAM |
| * for the main board_init_r() execution. This is typically because we need |
| * more stack space for things like the MMC sub-system. |
| * |
| * This function calculates the stack position, copies the global_data into |
| * place, sets the new gd (except for ARM, for which setting GD within a C |
| * function may not always work) and returns the new stack position. The |
| * caller is responsible for setting up the sp register and, in the case |
| * of ARM, setting up gd. |
| * |
| * All of this is done using the same layout and alignments as done in |
| * board_init_f_init_reserve() / board_init_f_alloc_reserve(). |
| * |
| * @return new stack location, or 0 to use the same stack |
| */ |
| ulong spl_relocate_stack_gd(void) |
| { |
| #ifdef CONFIG_SPL_STACK_R |
| gd_t *new_gd; |
| ulong ptr = CONFIG_SPL_STACK_R_ADDR; |
| |
| #ifdef CONFIG_SPL_SYS_MALLOC_SIMPLE |
| if (CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN) { |
| ptr -= CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN; |
| gd->malloc_base = ptr; |
| gd->malloc_limit = CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN; |
| gd->malloc_ptr = 0; |
| } |
| #endif |
| /* Get stack position: use 8-byte alignment for ABI compliance */ |
| ptr = CONFIG_SPL_STACK_R_ADDR - roundup(sizeof(gd_t),16); |
| new_gd = (gd_t *)ptr; |
| memcpy(new_gd, (void *)gd, sizeof(gd_t)); |
| #if !defined(CONFIG_ARM) |
| gd = new_gd; |
| #endif |
| return ptr; |
| #else |
| return 0; |
| #endif |
| } |