// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 2011 The Chromium OS Authors. * (C) Copyright 2002-2006 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * (C) Copyright 2002 * Sysgo Real-Time Solutions, GmbH * Marius Groeger */ #include #include #include #include #include #include #include #include #include /* TODO: can we just include all these headers whether needed or not? */ #if defined(CONFIG_CMD_BEDBUG) #include #endif #include #include #include #include #include #include #include #include #include #include #if defined(CONFIG_CMD_KGDB) #include #endif #include #include #include #ifdef CONFIG_BITBANGMII #include #endif #include #include #include #include #include #include #include #include #include #include #include #ifdef CONFIG_ADDR_MAP #include #endif #include #include #include #include #include #include #if defined(CONFIG_GPIO_HOG) #include #endif DECLARE_GLOBAL_DATA_PTR; ulong monitor_flash_len; __weak int board_flash_wp_on(void) { /* * Most flashes can't be detected when write protection is enabled, * so provide a way to let U-Boot gracefully ignore write protected * devices. */ return 0; } __weak void cpu_secondary_init_r(void) { } static int initr_secondary_cpu(void) { /* * after non-volatile devices & environment is setup and cpu code have * another round to deal with any initialization that might require * full access to the environment or loading of some image (firmware) * from a non-volatile device */ /* TODO: maybe define this for all archs? */ cpu_secondary_init_r(); return 0; } static int initr_trace(void) { #ifdef CONFIG_TRACE trace_init(gd->trace_buff, CONFIG_TRACE_BUFFER_SIZE); #endif return 0; } static int initr_reloc(void) { /* tell others: relocation done */ gd->flags |= GD_FLG_RELOC | GD_FLG_FULL_MALLOC_INIT; return 0; } #ifdef CONFIG_ARM /* * Some of these functions are needed purely because the functions they * call return void. If we change them to return 0, these stubs can go away. */ static int initr_caches(void) { /* Enable caches */ enable_caches(); return 0; } #endif __weak int fixup_cpu(void) { return 0; } static int initr_reloc_global_data(void) { #ifdef __ARM__ monitor_flash_len = _end - __image_copy_start; #elif defined(CONFIG_NDS32) || defined(CONFIG_RISCV) monitor_flash_len = (ulong)&_end - (ulong)&_start; #elif !defined(CONFIG_SANDBOX) && !defined(CONFIG_NIOS2) monitor_flash_len = (ulong)&__init_end - gd->relocaddr; #endif #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) /* * The gd->cpu pointer is set to an address in flash before relocation. * We need to update it to point to the same CPU entry in RAM. * TODO: why not just add gd->reloc_ofs? */ gd->arch.cpu += gd->relocaddr - CONFIG_SYS_MONITOR_BASE; /* * If we didn't know the cpu mask & # cores, we can save them of * now rather than 'computing' them constantly */ fixup_cpu(); #endif #ifdef CONFIG_SYS_RELOC_GD_ENV_ADDR /* * Relocate the early env_addr pointer unless we know it is not inside * the binary. Some systems need this and for the rest, it doesn't hurt. */ gd->env_addr += gd->reloc_off; #endif #ifdef CONFIG_OF_EMBED /* * The fdt_blob needs to be moved to new relocation address * incase of FDT blob is embedded with in image */ gd->fdt_blob += gd->reloc_off; #endif #ifdef CONFIG_EFI_LOADER /* * On the ARM architecture gd is mapped to a fixed register (r9 or x18). * As this register may be overwritten by an EFI payload we save it here * and restore it on every callback entered. */ efi_save_gd(); efi_runtime_relocate(gd->relocaddr, NULL); #endif return 0; } static int initr_serial(void) { serial_initialize(); return 0; } #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_MIPS) static int initr_trap(void) { /* * Setup trap handlers */ #if defined(CONFIG_PPC) trap_init(gd->relocaddr); #else trap_init(CONFIG_SYS_SDRAM_BASE); #endif return 0; } #endif #ifdef CONFIG_ADDR_MAP static int initr_addr_map(void) { init_addr_map(); return 0; } #endif #ifdef CONFIG_POST static int initr_post_backlog(void) { post_output_backlog(); return 0; } #endif #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500) static int initr_unlock_ram_in_cache(void) { unlock_ram_in_cache(); /* it's time to unlock D-cache in e500 */ return 0; } #endif #ifdef CONFIG_PCI static int initr_pci(void) { #ifndef CONFIG_DM_PCI pci_init(); #endif return 0; } #endif static int initr_barrier(void) { #ifdef CONFIG_PPC /* TODO: Can we not use dmb() macros for this? */ asm("sync ; isync"); #endif return 0; } static int initr_malloc(void) { ulong malloc_start; #if CONFIG_VAL(SYS_MALLOC_F_LEN) debug("Pre-reloc malloc() used %#lx bytes (%ld KB)\n", gd->malloc_ptr, gd->malloc_ptr / 1024); #endif /* The malloc area is immediately below the monitor copy in DRAM */ /* * This value MUST match the value of gd->start_addr_sp in board_f.c: * reserve_noncached(). */ malloc_start = gd->relocaddr - TOTAL_MALLOC_LEN; mem_malloc_init((ulong)map_sysmem(malloc_start, TOTAL_MALLOC_LEN), TOTAL_MALLOC_LEN); return 0; } static int initr_console_record(void) { #if defined(CONFIG_CONSOLE_RECORD) return console_record_init(); #else return 0; #endif } #ifdef CONFIG_SYS_NONCACHED_MEMORY static int initr_noncached(void) { noncached_init(); return 0; } #endif #ifdef CONFIG_OF_LIVE static int initr_of_live(void) { int ret; bootstage_start(BOOTSTAGE_ID_ACCUM_OF_LIVE, "of_live"); ret = of_live_build(gd->fdt_blob, (struct device_node **)&gd->of_root); bootstage_accum(BOOTSTAGE_ID_ACCUM_OF_LIVE); if (ret) return ret; return 0; } #endif #ifdef CONFIG_DM static int initr_dm(void) { int ret; /* Save the pre-reloc driver model and start a new one */ gd->dm_root_f = gd->dm_root; gd->dm_root = NULL; #ifdef CONFIG_TIMER gd->timer = NULL; #endif bootstage_start(BOOTSTATE_ID_ACCUM_DM_R, "dm_r"); ret = dm_init_and_scan(false); bootstage_accum(BOOTSTATE_ID_ACCUM_DM_R); if (ret) return ret; return 0; } #endif static int initr_dm_devices(void) { int ret; if (IS_ENABLED(CONFIG_TIMER_EARLY)) { ret = dm_timer_init(); if (ret) return ret; } return 0; } static int initr_bootstage(void) { bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_R, "board_init_r"); return 0; } __weak int power_init_board(void) { return 0; } static int initr_announce(void) { debug("Now running in RAM - U-Boot at: %08lx\n", gd->relocaddr); return 0; } #ifdef CONFIG_NEEDS_MANUAL_RELOC static int initr_manual_reloc_cmdtable(void) { fixup_cmdtable(ll_entry_start(cmd_tbl_t, cmd), ll_entry_count(cmd_tbl_t, cmd)); return 0; } #endif static int initr_binman(void) { if (!CONFIG_IS_ENABLED(BINMAN_FDT)) return 0; return binman_init(); } #if defined(CONFIG_MTD_NOR_FLASH) static int initr_flash(void) { ulong flash_size = 0; bd_t *bd = gd->bd; puts("Flash: "); if (board_flash_wp_on()) printf("Uninitialized - Write Protect On\n"); else flash_size = flash_init(); print_size(flash_size, ""); #ifdef CONFIG_SYS_FLASH_CHECKSUM /* * Compute and print flash CRC if flashchecksum is set to 'y' * * NOTE: Maybe we should add some WATCHDOG_RESET()? XXX */ if (env_get_yesno("flashchecksum") == 1) { const uchar *flash_base = (const uchar *)CONFIG_SYS_FLASH_BASE; printf(" CRC: %08X", crc32(0, flash_base, flash_size)); } #endif /* CONFIG_SYS_FLASH_CHECKSUM */ putc('\n'); /* update start of FLASH memory */ #ifdef CONFIG_SYS_FLASH_BASE bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; #endif /* size of FLASH memory (final value) */ bd->bi_flashsize = flash_size; #if defined(CONFIG_SYS_UPDATE_FLASH_SIZE) /* Make a update of the Memctrl. */ update_flash_size(flash_size); #endif #if defined(CONFIG_OXC) || defined(CONFIG_RMU) /* flash mapped at end of memory map */ bd->bi_flashoffset = CONFIG_SYS_TEXT_BASE + flash_size; #elif CONFIG_SYS_MONITOR_BASE == CONFIG_SYS_FLASH_BASE bd->bi_flashoffset = monitor_flash_len; /* reserved area for monitor */ #endif return 0; } #endif #ifdef CONFIG_CMD_NAND /* go init the NAND */ static int initr_nand(void) { puts("NAND: "); nand_init(); printf("%lu MiB\n", nand_size() / 1024); return 0; } #endif #if defined(CONFIG_CMD_ONENAND) /* go init the NAND */ static int initr_onenand(void) { puts("NAND: "); onenand_init(); return 0; } #endif #ifdef CONFIG_MMC static int initr_mmc(void) { puts("MMC: "); mmc_initialize(gd->bd); return 0; } #endif /* * Tell if it's OK to load the environment early in boot. * * If CONFIG_OF_CONTROL is defined, we'll check with the FDT to see * if this is OK (defaulting to saying it's OK). * * NOTE: Loading the environment early can be a bad idea if security is * important, since no verification is done on the environment. * * @return 0 if environment should not be loaded, !=0 if it is ok to load */ static int should_load_env(void) { #ifdef CONFIG_OF_CONTROL return fdtdec_get_config_int(gd->fdt_blob, "load-environment", 1); #elif defined CONFIG_DELAY_ENVIRONMENT return 0; #else return 1; #endif } static int initr_env(void) { /* initialize environment */ if (should_load_env()) env_relocate(); else env_set_default(NULL, 0); #ifdef CONFIG_OF_CONTROL env_set_hex("fdtcontroladdr", (unsigned long)map_to_sysmem(gd->fdt_blob)); #endif /* Initialize from environment */ image_load_addr = env_get_ulong("loadaddr", 16, image_load_addr); return 0; } #ifdef CONFIG_SYS_BOOTPARAMS_LEN static int initr_malloc_bootparams(void) { gd->bd->bi_boot_params = (ulong)malloc(CONFIG_SYS_BOOTPARAMS_LEN); if (!gd->bd->bi_boot_params) { puts("WARNING: Cannot allocate space for boot parameters\n"); return -ENOMEM; } return 0; } #endif static int initr_jumptable(void) { jumptable_init(); return 0; } #if defined(CONFIG_API) static int initr_api(void) { /* Initialize API */ api_init(); return 0; } #endif /* enable exceptions */ #ifdef CONFIG_ARM static int initr_enable_interrupts(void) { enable_interrupts(); return 0; } #endif #ifdef CONFIG_CMD_NET static int initr_ethaddr(void) { bd_t *bd = gd->bd; /* kept around for legacy kernels only ... ignore the next section */ eth_env_get_enetaddr("ethaddr", bd->bi_enetaddr); #ifdef CONFIG_HAS_ETH1 eth_env_get_enetaddr("eth1addr", bd->bi_enet1addr); #endif #ifdef CONFIG_HAS_ETH2 eth_env_get_enetaddr("eth2addr", bd->bi_enet2addr); #endif #ifdef CONFIG_HAS_ETH3 eth_env_get_enetaddr("eth3addr", bd->bi_enet3addr); #endif #ifdef CONFIG_HAS_ETH4 eth_env_get_enetaddr("eth4addr", bd->bi_enet4addr); #endif #ifdef CONFIG_HAS_ETH5 eth_env_get_enetaddr("eth5addr", bd->bi_enet5addr); #endif return 0; } #endif /* CONFIG_CMD_NET */ #ifdef CONFIG_CMD_KGDB static int initr_kgdb(void) { puts("KGDB: "); kgdb_init(); return 0; } #endif #if defined(CONFIG_LED_STATUS) static int initr_status_led(void) { #if defined(CONFIG_LED_STATUS_BOOT) status_led_set(CONFIG_LED_STATUS_BOOT, CONFIG_LED_STATUS_BLINKING); #else status_led_init(); #endif return 0; } #endif #if defined(CONFIG_SCSI) && !defined(CONFIG_DM_SCSI) static int initr_scsi(void) { puts("SCSI: "); scsi_init(); puts("\n"); return 0; } #endif #ifdef CONFIG_BITBANGMII static int initr_bbmii(void) { bb_miiphy_init(); return 0; } #endif #ifdef CONFIG_CMD_NET static int initr_net(void) { puts("Net: "); eth_initialize(); #if defined(CONFIG_RESET_PHY_R) debug("Reset Ethernet PHY\n"); reset_phy(); #endif return 0; } #endif #ifdef CONFIG_POST static int initr_post(void) { post_run(NULL, POST_RAM | post_bootmode_get(0)); return 0; } #endif #if defined(CONFIG_IDE) && !defined(CONFIG_BLK) static int initr_ide(void) { puts("IDE: "); #if defined(CONFIG_START_IDE) if (board_start_ide()) ide_init(); #else ide_init(); #endif return 0; } #endif #if defined(CONFIG_PRAM) /* * Export available size of memory for Linux, taking into account the * protected RAM at top of memory */ int initr_mem(void) { ulong pram = 0; char memsz[32]; pram = env_get_ulong("pram", 10, CONFIG_PRAM); sprintf(memsz, "%ldk", (long int)((gd->ram_size / 1024) - pram)); env_set("mem", memsz); return 0; } #endif #ifdef CONFIG_CMD_BEDBUG static int initr_bedbug(void) { bedbug_init(); return 0; } #endif static int run_main_loop(void) { #ifdef CONFIG_SANDBOX sandbox_main_loop_init(); #endif /* main_loop() can return to retry autoboot, if so just run it again */ for (;;) main_loop(); return 0; } /* * We hope to remove most of the driver-related init and do it if/when * the driver is later used. * * TODO: perhaps reset the watchdog in the initcall function after each call? */ static init_fnc_t init_sequence_r[] = { initr_trace, initr_reloc, /* TODO: could x86/PPC have this also perhaps? */ #ifdef CONFIG_ARM initr_caches, /* Note: For Freescale LS2 SoCs, new MMU table is created in DDR. * A temporary mapping of IFC high region is since removed, * so environmental variables in NOR flash is not available * until board_init() is called below to remap IFC to high * region. */ #endif initr_reloc_global_data, #if defined(CONFIG_SYS_INIT_RAM_LOCK) && defined(CONFIG_E500) initr_unlock_ram_in_cache, #endif initr_barrier, initr_malloc, log_init, initr_bootstage, /* Needs malloc() but has its own timer */ initr_console_record, #ifdef CONFIG_SYS_NONCACHED_MEMORY initr_noncached, #endif #ifdef CONFIG_OF_LIVE initr_of_live, #endif #ifdef CONFIG_DM initr_dm, #endif #if defined(CONFIG_ARM) || defined(CONFIG_NDS32) || defined(CONFIG_RISCV) || \ defined(CONFIG_SANDBOX) board_init, /* Setup chipselects */ #endif /* * TODO: printing of the clock inforamtion of the board is now * implemented as part of bdinfo command. Currently only support for * davinci SOC's is added. Remove this check once all the board * implement this. */ #ifdef CONFIG_CLOCKS set_cpu_clk_info, /* Setup clock information */ #endif #ifdef CONFIG_EFI_LOADER efi_memory_init, #endif initr_binman, #ifdef CONFIG_FSP_VERSION2 arch_fsp_init_r, #endif initr_dm_devices, stdio_init_tables, initr_serial, initr_announce, #if CONFIG_IS_ENABLED(WDT) initr_watchdog, #endif INIT_FUNC_WATCHDOG_RESET #ifdef CONFIG_NEEDS_MANUAL_RELOC initr_manual_reloc_cmdtable, #endif #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_MIPS) initr_trap, #endif #ifdef CONFIG_ADDR_MAP initr_addr_map, #endif #if defined(CONFIG_BOARD_EARLY_INIT_R) board_early_init_r, #endif INIT_FUNC_WATCHDOG_RESET #ifdef CONFIG_POST initr_post_backlog, #endif INIT_FUNC_WATCHDOG_RESET #if defined(CONFIG_PCI) && defined(CONFIG_SYS_EARLY_PCI_INIT) /* * Do early PCI configuration _before_ the flash gets initialised, * because PCU resources are crucial for flash access on some boards. */ initr_pci, #endif #ifdef CONFIG_ARCH_EARLY_INIT_R arch_early_init_r, #endif power_init_board, #ifdef CONFIG_MTD_NOR_FLASH initr_flash, #endif INIT_FUNC_WATCHDOG_RESET #if defined(CONFIG_PPC) || defined(CONFIG_M68K) || defined(CONFIG_X86) /* initialize higher level parts of CPU like time base and timers */ cpu_init_r, #endif #ifdef CONFIG_CMD_NAND initr_nand, #endif #ifdef CONFIG_CMD_ONENAND initr_onenand, #endif #ifdef CONFIG_MMC initr_mmc, #endif initr_env, #ifdef CONFIG_SYS_BOOTPARAMS_LEN initr_malloc_bootparams, #endif INIT_FUNC_WATCHDOG_RESET initr_secondary_cpu, #if defined(CONFIG_ID_EEPROM) || defined(CONFIG_SYS_I2C_MAC_OFFSET) mac_read_from_eeprom, #endif INIT_FUNC_WATCHDOG_RESET #if defined(CONFIG_PCI) && !defined(CONFIG_SYS_EARLY_PCI_INIT) /* * Do pci configuration */ initr_pci, #endif stdio_add_devices, initr_jumptable, #ifdef CONFIG_API initr_api, #endif console_init_r, /* fully init console as a device */ #ifdef CONFIG_DISPLAY_BOARDINFO_LATE console_announce_r, show_board_info, #endif #ifdef CONFIG_ARCH_MISC_INIT arch_misc_init, /* miscellaneous arch-dependent init */ #endif #ifdef CONFIG_MISC_INIT_R misc_init_r, /* miscellaneous platform-dependent init */ #endif INIT_FUNC_WATCHDOG_RESET #ifdef CONFIG_CMD_KGDB initr_kgdb, #endif interrupt_init, #ifdef CONFIG_ARM initr_enable_interrupts, #endif #if defined(CONFIG_MICROBLAZE) || defined(CONFIG_M68K) timer_init, /* initialize timer */ #endif #if defined(CONFIG_LED_STATUS) initr_status_led, #endif /* PPC has a udelay(20) here dating from 2002. Why? */ #ifdef CONFIG_CMD_NET initr_ethaddr, #endif #if defined(CONFIG_GPIO_HOG) gpio_hog_probe_all, #endif #ifdef CONFIG_BOARD_LATE_INIT board_late_init, #endif #if defined(CONFIG_SCSI) && !defined(CONFIG_DM_SCSI) INIT_FUNC_WATCHDOG_RESET initr_scsi, #endif #ifdef CONFIG_BITBANGMII initr_bbmii, #endif #ifdef CONFIG_CMD_NET INIT_FUNC_WATCHDOG_RESET initr_net, #endif #ifdef CONFIG_POST initr_post, #endif #if defined(CONFIG_IDE) && !defined(CONFIG_BLK) initr_ide, #endif #ifdef CONFIG_LAST_STAGE_INIT INIT_FUNC_WATCHDOG_RESET /* * Some parts can be only initialized if all others (like * Interrupts) are up and running (i.e. the PC-style ISA * keyboard). */ last_stage_init, #endif #ifdef CONFIG_CMD_BEDBUG INIT_FUNC_WATCHDOG_RESET initr_bedbug, #endif #if defined(CONFIG_PRAM) initr_mem, #endif #ifdef CONFIG_BLOCK_CACHE blkcache_init, #endif run_main_loop, }; void board_init_r(gd_t *new_gd, ulong dest_addr) { /* * Set up the new global data pointer. So far only x86 does this * here. * TODO(sjg@chromium.org): Consider doing this for all archs, or * dropping the new_gd parameter. */ #if CONFIG_IS_ENABLED(X86_64) arch_setup_gd(new_gd); #endif #ifdef CONFIG_NEEDS_MANUAL_RELOC int i; #endif #if !defined(CONFIG_X86) && !defined(CONFIG_ARM) && !defined(CONFIG_ARM64) gd = new_gd; #endif gd->flags &= ~GD_FLG_LOG_READY; #ifdef CONFIG_NEEDS_MANUAL_RELOC for (i = 0; i < ARRAY_SIZE(init_sequence_r); i++) init_sequence_r[i] += gd->reloc_off; #endif if (initcall_run_list(init_sequence_r)) hang(); /* NOTREACHED - run_main_loop() does not return */ hang(); }