diff options
Diffstat (limited to 'common/board_r.c')
| -rw-r--r-- | common/board_r.c | 775 |
1 files changed, 775 insertions, 0 deletions
diff --git a/common/board_r.c b/common/board_r.c new file mode 100644 index 00000000000..c823cd262f1 --- /dev/null +++ b/common/board_r.c @@ -0,0 +1,775 @@ +// 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 <www.elinos.com> + * Marius Groeger <mgroeger@sysgo.de> + */ + +#include <config.h> +#include <api.h> +#include <bootstage.h> +#include <cpu_func.h> +#include <cyclic.h> +#include <display_options.h> +#include <exports.h> +#ifdef CONFIG_MTD_NOR_FLASH +#include <flash.h> +#endif +#include <hang.h> +#include <image.h> +#include <irq_func.h> +#include <log.h> +#include <net.h> +#include <asm/cache.h> +#include <asm/global_data.h> +#include <u-boot/crc.h> +#include <binman.h> +#include <command.h> +#include <console.h> +#include <dm.h> +#include <env.h> +#include <env_internal.h> +#include <fdtdec.h> +#include <ide.h> +#include <init.h> +#include <initcall.h> +#include <kgdb.h> +#include <irq_func.h> +#include <malloc.h> +#include <mapmem.h> +#include <miiphy.h> +#include <mmc.h> +#include <mux.h> +#include <nand.h> +#include <of_live.h> +#include <onenand_uboot.h> +#include <pvblock.h> +#include <scsi.h> +#include <serial.h> +#include <status_led.h> +#include <stdio_dev.h> +#include <timer.h> +#include <trace.h> +#include <watchdog.h> +#include <xen.h> +#include <asm/sections.h> +#include <dm/root.h> +#include <dm/ofnode.h> +#include <linux/compiler.h> +#include <linux/err.h> +#include <efi_loader.h> +#include <wdt.h> +#include <asm-generic/gpio.h> +#include <efi_loader.h> +#include <relocate.h> + +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 int cpu_secondary_init_r(void) +{ + 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; +} + +#if defined(CONFIG_ARM) || defined(CONFIG_RISCV) +/* + * 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_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_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; +} + +__weak int arch_initr_trap(void) +{ + return 0; +} + +#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 + +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 start; + +#if CONFIG_IS_ENABLED(SYS_MALLOC_F) + 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(). + */ + start = gd->relocaddr - TOTAL_MALLOC_LEN; + gd_set_malloc_start(start); + mem_malloc_init((ulong)map_sysmem(start, TOTAL_MALLOC_LEN), + TOTAL_MALLOC_LEN); + return 0; +} + +static int initr_of_live(void) +{ + if (CONFIG_IS_ENABLED(OF_LIVE)) { + int ret; + + bootstage_start(BOOTSTAGE_ID_ACCUM_OF_LIVE, "of_live"); + ret = of_live_build(gd->fdt_blob, + (struct device_node **)gd_of_root_ptr()); + bootstage_accum(BOOTSTAGE_ID_ACCUM_OF_LIVE); + if (ret) + return ret; + } + + return 0; +} + +#ifdef CONFIG_DM +static int initr_dm(void) +{ + int ret; + + oftree_reset(); + + /* 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(BOOTSTAGE_ID_ACCUM_DM_R, "dm_r"); + ret = dm_init_and_scan(false); + bootstage_accum(BOOTSTAGE_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; + } + + if (IS_ENABLED(CONFIG_MULTIPLEXER)) { + /* + * Initialize the multiplexer controls to their default state. + * This must be done early as other drivers may unknowingly + * rely on it. + */ + ret = dm_mux_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; +} + +static int initr_binman(void) +{ + int ret; + + if (!CONFIG_IS_ENABLED(BINMAN_FDT)) + return 0; + + ret = binman_init(); + if (ret) + printf("binman_init failed:%d\n", ret); + + return ret; +} + +#if defined(CONFIG_MTD_NOR_FLASH) +__weak int is_flash_available(void) +{ + return 1; +} + +static int initr_flash(void) +{ + ulong flash_size = 0; + struct bd_info *bd = gd->bd; + + if (!is_flash_available()) + return 0; + + 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 schedule()? XXX + */ + if (env_get_yesno("flashchecksum") == 1) { + const uchar *flash_base = (const uchar *)CFG_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 CFG_SYS_FLASH_BASE + bd->bi_flashstart = CFG_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_TEXT_BASE + flash_size; +#elif CONFIG_SYS_MONITOR_BASE == CFG_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 + +#ifdef CONFIG_PVBLOCK +static int initr_pvblock(void) +{ + puts("PVBLOCK: "); + pvblock_init(); + 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) +{ + if (IS_ENABLED(CONFIG_OF_CONTROL)) + return ofnode_conf_read_int("load-environment", 1); + + if (IS_ENABLED(CONFIG_DELAY_ENVIRONMENT)) + return 0; + + return 1; +} + +static int initr_env(void) +{ + /* initialize environment */ + if (should_load_env()) + env_relocate(); + else + env_set_default(NULL, 0); + + env_import_fdt(); + + if (IS_ENABLED(CONFIG_OF_CONTROL)) + env_set_hex("fdtcontroladdr", + (unsigned long)map_to_sysmem(gd->fdt_blob)); + + #if (IS_ENABLED(CONFIG_SAVE_PREV_BL_INITRAMFS_START_ADDR) || \ + IS_ENABLED(CONFIG_SAVE_PREV_BL_FDT_ADDR)) + save_prev_bl_data(); + #endif + + /* Initialize from environment */ + image_load_addr = env_get_ulong("loadaddr", 16, image_load_addr); + + return 0; +} + +#ifdef CONFIG_SYS_MALLOC_BOOTPARAMS +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 + +#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 + +#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(CFG_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, CFG_PRAM); + sprintf(memsz, "%ldk", (long int)((gd->ram_size / 1024) - pram)); + env_set("mem", memsz); + + return 0; +} +#endif + +static int dm_announce(void) +{ + int device_count; + int uclass_count; + + if (IS_ENABLED(CONFIG_DM)) { + dm_get_stats(&device_count, &uclass_count); + printf("Core: %d devices, %d uclasses", device_count, + uclass_count); + if (CONFIG_IS_ENABLED(OF_REAL)) + printf(", devicetree: %s", fdtdec_get_srcname()); + printf("\n"); + if (IS_ENABLED(CONFIG_OF_HAS_PRIOR_STAGE) && + (gd->fdt_src == FDTSRC_SEPARATE || + gd->fdt_src == FDTSRC_EMBED)) { + printf("Warning: Unexpected devicetree source (not from a prior stage)"); + printf("Warning: U-Boot may not function properly\n"); + } + if (IS_ENABLED(CONFIG_OF_TAG_MIGRATE) && + (gd->flags & GD_FLG_OF_TAG_MIGRATE)) + /* + * U-Boot will silently fail to work after 2023.07 if + * there are old tags present + */ + printf("Warning: Device tree includes old 'u-boot,dm-' tags: please fix by 2023.07!\n"); + } + + return 0; +} + +static int run_main_loop(void) +{ +#ifdef CONFIG_SANDBOX + sandbox_main_loop_init(); +#endif + + event_notify_null(EVT_MAIN_LOOP); + + /* main_loop() can return to retry autoboot, if so just run it again */ + for (;;) + main_loop(); + return 0; +} + +/* + * Over time we hope to remove these functions with code fragments and + * stub functions, and instead call the relevant function directly. + * + * We also 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, + event_init, + /* TODO: could x86/PPC have this also perhaps? */ +#if defined(CONFIG_ARM) || defined(CONFIG_RISCV) + 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 */ +#if defined(CONFIG_CONSOLE_RECORD) + console_record_init, +#endif +#ifdef CONFIG_SYS_NONCACHED_MEMORY + noncached_init, +#endif + initr_of_live, +#ifdef CONFIG_DM + initr_dm, +#endif +#ifdef CONFIG_ADDR_MAP + init_addr_map, +#endif +#if defined(CONFIG_ARM) || 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, + serial_initialize, + initr_announce, + dm_announce, +#if CONFIG_IS_ENABLED(WDT) + initr_watchdog, +#endif + INIT_FUNC_WATCHDOG_RESET + arch_initr_trap, +#if defined(CONFIG_BOARD_EARLY_INIT_R) + board_early_init_r, +#endif + INIT_FUNC_WATCHDOG_RESET +#ifdef CONFIG_POST + post_output_backlog, +#endif + INIT_FUNC_WATCHDOG_RESET +#if defined(CONFIG_PCI_INIT_R) && 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. + */ + pci_init, +#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_EFI_LOADER + efi_init_early, +#endif +#ifdef CONFIG_CMD_NAND + initr_nand, +#endif +#ifdef CONFIG_CMD_ONENAND + initr_onenand, +#endif +#ifdef CONFIG_MMC + initr_mmc, +#endif +#ifdef CONFIG_XEN + xen_init, +#endif +#ifdef CONFIG_PVBLOCK + initr_pvblock, +#endif + initr_env, +#ifdef CONFIG_SYS_MALLOC_BOOTPARAMS + initr_malloc_bootparams, +#endif + INIT_FUNC_WATCHDOG_RESET + cpu_secondary_init_r, +#if defined(CONFIG_ID_EEPROM) + mac_read_from_eeprom, +#endif + INITCALL_EVENT(EVT_SETTINGS_R), + INIT_FUNC_WATCHDOG_RESET +#if defined(CONFIG_PCI_INIT_R) && !defined(CONFIG_SYS_EARLY_PCI_INIT) + /* + * Do pci configuration + */ + pci_init, +#endif + stdio_add_devices, + jumptable_init, +#ifdef CONFIG_API + api_init, +#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 + kgdb_init, +#endif + interrupt_init, +#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_BOARD_LATE_INIT + board_late_init, +#endif +#ifdef CONFIG_BITBANGMII + bb_miiphy_init, +#endif +#ifdef CONFIG_PCI_ENDPOINT + pci_ep_init, +#endif +#ifdef CONFIG_CMD_NET + INIT_FUNC_WATCHDOG_RESET + initr_net, +#endif +#ifdef CONFIG_POST + initr_post, +#endif + INIT_FUNC_WATCHDOG_RESET + INITCALL_EVENT(EVT_LAST_STAGE_INIT), +#if defined(CFG_PRAM) + initr_mem, +#endif + run_main_loop, +}; + +void board_init_r(gd_t *new_gd, ulong dest_addr) +{ + /* + * The pre-relocation drivers may be using memory that has now gone + * away. Mark serial as unavailable - this will fall back to the debug + * UART if available. + * + * Do the same with log drivers since the memory may not be available. + */ + gd->flags &= ~(GD_FLG_SERIAL_READY | GD_FLG_LOG_READY); + + /* + * 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) && !IS_ENABLED(CONFIG_EFI_APP)) + arch_setup_gd(new_gd); + +#if !defined(CONFIG_X86) && !defined(CONFIG_ARM) && !defined(CONFIG_ARM64) + gd = new_gd; +#endif + gd->flags &= ~GD_FLG_LOG_READY; + + if (initcall_run_list(init_sequence_r)) + hang(); + + /* NOTREACHED - run_main_loop() does not return */ + hang(); +} |