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539 lines
13 KiB
539 lines
13 KiB
// SPDX-License-Identifier: GPL-2.0+ |
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/* |
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* (C) Copyright 2000-2009 |
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* Wolfgang Denk, DENX Software Engineering, [email protected]. |
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*/ |
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|
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/* |
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* Boot support |
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*/ |
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#include <common.h> |
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#include <bootm.h> |
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#include <command.h> |
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#include <environment.h> |
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#include <errno.h> |
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#include <image.h> |
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#include <malloc.h> |
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#include <nand.h> |
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#include <asm/byteorder.h> |
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#include <linux/ctype.h> |
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#include <linux/err.h> |
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#include <u-boot/zlib.h> |
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DECLARE_GLOBAL_DATA_PTR; |
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|
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#if defined(CONFIG_CMD_IMI) |
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static int image_info(unsigned long addr); |
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#endif |
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#if defined(CONFIG_CMD_IMLS) |
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#include <flash.h> |
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#include <mtd/cfi_flash.h> |
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extern flash_info_t flash_info[]; /* info for FLASH chips */ |
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#endif |
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#if defined(CONFIG_CMD_IMLS) || defined(CONFIG_CMD_IMLS_NAND) |
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static int do_imls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]); |
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#endif |
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|
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/* we overload the cmd field with our state machine info instead of a |
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* function pointer */ |
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static cmd_tbl_t cmd_bootm_sub[] = { |
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U_BOOT_CMD_MKENT(start, 0, 1, (void *)BOOTM_STATE_START, "", ""), |
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U_BOOT_CMD_MKENT(loados, 0, 1, (void *)BOOTM_STATE_LOADOS, "", ""), |
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#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH |
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U_BOOT_CMD_MKENT(ramdisk, 0, 1, (void *)BOOTM_STATE_RAMDISK, "", ""), |
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#endif |
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#ifdef CONFIG_OF_LIBFDT |
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U_BOOT_CMD_MKENT(fdt, 0, 1, (void *)BOOTM_STATE_FDT, "", ""), |
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#endif |
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U_BOOT_CMD_MKENT(cmdline, 0, 1, (void *)BOOTM_STATE_OS_CMDLINE, "", ""), |
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U_BOOT_CMD_MKENT(bdt, 0, 1, (void *)BOOTM_STATE_OS_BD_T, "", ""), |
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U_BOOT_CMD_MKENT(prep, 0, 1, (void *)BOOTM_STATE_OS_PREP, "", ""), |
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U_BOOT_CMD_MKENT(fake, 0, 1, (void *)BOOTM_STATE_OS_FAKE_GO, "", ""), |
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U_BOOT_CMD_MKENT(go, 0, 1, (void *)BOOTM_STATE_OS_GO, "", ""), |
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}; |
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static int do_bootm_subcommand(cmd_tbl_t *cmdtp, int flag, int argc, |
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char * const argv[]) |
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{ |
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int ret = 0; |
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long state; |
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cmd_tbl_t *c; |
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c = find_cmd_tbl(argv[0], &cmd_bootm_sub[0], ARRAY_SIZE(cmd_bootm_sub)); |
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argc--; argv++; |
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if (c) { |
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state = (long)c->cmd; |
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if (state == BOOTM_STATE_START) |
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state |= BOOTM_STATE_FINDOS | BOOTM_STATE_FINDOTHER; |
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} else { |
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/* Unrecognized command */ |
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return CMD_RET_USAGE; |
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} |
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if (((state & BOOTM_STATE_START) != BOOTM_STATE_START) && |
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images.state >= state) { |
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printf("Trying to execute a command out of order\n"); |
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return CMD_RET_USAGE; |
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} |
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ret = do_bootm_states(cmdtp, flag, argc, argv, state, &images, 0); |
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return ret; |
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} |
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/*******************************************************************/ |
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/* bootm - boot application image from image in memory */ |
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/*******************************************************************/ |
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int do_bootm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
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{ |
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#ifdef CONFIG_NEEDS_MANUAL_RELOC |
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static int relocated = 0; |
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if (!relocated) { |
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int i; |
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/* relocate names of sub-command table */ |
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for (i = 0; i < ARRAY_SIZE(cmd_bootm_sub); i++) |
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cmd_bootm_sub[i].name += gd->reloc_off; |
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relocated = 1; |
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} |
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#endif |
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/* determine if we have a sub command */ |
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argc--; argv++; |
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if (argc > 0) { |
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char *endp; |
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simple_strtoul(argv[0], &endp, 16); |
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/* endp pointing to NULL means that argv[0] was just a |
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* valid number, pass it along to the normal bootm processing |
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* |
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* If endp is ':' or '#' assume a FIT identifier so pass |
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* along for normal processing. |
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* |
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* Right now we assume the first arg should never be '-' |
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*/ |
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if ((*endp != 0) && (*endp != ':') && (*endp != '#')) |
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return do_bootm_subcommand(cmdtp, flag, argc, argv); |
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} |
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return do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_START | |
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BOOTM_STATE_FINDOS | BOOTM_STATE_FINDOTHER | |
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BOOTM_STATE_LOADOS | |
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#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH |
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BOOTM_STATE_RAMDISK | |
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#endif |
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#if defined(CONFIG_PPC) || defined(CONFIG_MIPS) |
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BOOTM_STATE_OS_CMDLINE | |
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#endif |
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BOOTM_STATE_OS_PREP | BOOTM_STATE_OS_FAKE_GO | |
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BOOTM_STATE_OS_GO, &images, 1); |
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} |
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int bootm_maybe_autostart(cmd_tbl_t *cmdtp, const char *cmd) |
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{ |
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const char *ep = env_get("autostart"); |
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if (ep && !strcmp(ep, "yes")) { |
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char *local_args[2]; |
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local_args[0] = (char *)cmd; |
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local_args[1] = NULL; |
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printf("Automatic boot of image at addr 0x%08lX ...\n", load_addr); |
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return do_bootm(cmdtp, 0, 1, local_args); |
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} |
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return 0; |
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} |
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#ifdef CONFIG_SYS_LONGHELP |
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static char bootm_help_text[] = |
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"[addr [arg ...]]\n - boot application image stored in memory\n" |
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"\tpassing arguments 'arg ...'; when booting a Linux kernel,\n" |
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"\t'arg' can be the address of an initrd image\n" |
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#if defined(CONFIG_OF_LIBFDT) |
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"\tWhen booting a Linux kernel which requires a flat device-tree\n" |
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"\ta third argument is required which is the address of the\n" |
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"\tdevice-tree blob. To boot that kernel without an initrd image,\n" |
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"\tuse a '-' for the second argument. If you do not pass a third\n" |
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"\ta bd_info struct will be passed instead\n" |
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#endif |
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#if defined(CONFIG_FIT) |
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"\t\nFor the new multi component uImage format (FIT) addresses\n" |
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"\tmust be extended to include component or configuration unit name:\n" |
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"\taddr:<subimg_uname> - direct component image specification\n" |
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"\taddr#<conf_uname> - configuration specification\n" |
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"\tUse iminfo command to get the list of existing component\n" |
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"\timages and configurations.\n" |
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#endif |
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"\nSub-commands to do part of the bootm sequence. The sub-commands " |
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"must be\n" |
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"issued in the order below (it's ok to not issue all sub-commands):\n" |
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"\tstart [addr [arg ...]]\n" |
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"\tloados - load OS image\n" |
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#if defined(CONFIG_SYS_BOOT_RAMDISK_HIGH) |
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"\tramdisk - relocate initrd, set env initrd_start/initrd_end\n" |
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#endif |
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#if defined(CONFIG_OF_LIBFDT) |
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"\tfdt - relocate flat device tree\n" |
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#endif |
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"\tcmdline - OS specific command line processing/setup\n" |
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"\tbdt - OS specific bd_t processing\n" |
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"\tprep - OS specific prep before relocation or go\n" |
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#if defined(CONFIG_TRACE) |
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"\tfake - OS specific fake start without go\n" |
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#endif |
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"\tgo - start OS"; |
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#endif |
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U_BOOT_CMD( |
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bootm, CONFIG_SYS_MAXARGS, 1, do_bootm, |
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"boot application image from memory", bootm_help_text |
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); |
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/*******************************************************************/ |
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/* bootd - boot default image */ |
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/*******************************************************************/ |
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#if defined(CONFIG_CMD_BOOTD) |
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int do_bootd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
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{ |
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return run_command(env_get("bootcmd"), flag); |
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} |
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U_BOOT_CMD( |
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boot, 1, 1, do_bootd, |
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"boot default, i.e., run 'bootcmd'", |
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"" |
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); |
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/* keep old command name "bootd" for backward compatibility */ |
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U_BOOT_CMD( |
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bootd, 1, 1, do_bootd, |
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"boot default, i.e., run 'bootcmd'", |
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"" |
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); |
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#endif |
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/*******************************************************************/ |
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/* iminfo - print header info for a requested image */ |
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/*******************************************************************/ |
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#if defined(CONFIG_CMD_IMI) |
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static int do_iminfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
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{ |
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int arg; |
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ulong addr; |
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int rcode = 0; |
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if (argc < 2) { |
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return image_info(load_addr); |
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} |
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for (arg = 1; arg < argc; ++arg) { |
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addr = simple_strtoul(argv[arg], NULL, 16); |
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if (image_info(addr) != 0) |
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rcode = 1; |
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} |
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return rcode; |
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} |
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static int image_info(ulong addr) |
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{ |
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void *hdr = (void *)addr; |
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printf("\n## Checking Image at %08lx ...\n", addr); |
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switch (genimg_get_format(hdr)) { |
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#if defined(CONFIG_IMAGE_FORMAT_LEGACY) |
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case IMAGE_FORMAT_LEGACY: |
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puts(" Legacy image found\n"); |
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if (!image_check_magic(hdr)) { |
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puts(" Bad Magic Number\n"); |
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return 1; |
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} |
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if (!image_check_hcrc(hdr)) { |
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puts(" Bad Header Checksum\n"); |
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return 1; |
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} |
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image_print_contents(hdr); |
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puts(" Verifying Checksum ... "); |
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if (!image_check_dcrc(hdr)) { |
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puts(" Bad Data CRC\n"); |
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return 1; |
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} |
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puts("OK\n"); |
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return 0; |
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#endif |
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#if defined(CONFIG_ANDROID_BOOT_IMAGE) |
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case IMAGE_FORMAT_ANDROID: |
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puts(" Android image found\n"); |
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android_print_contents(hdr); |
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return 0; |
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#endif |
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#if defined(CONFIG_FIT) |
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case IMAGE_FORMAT_FIT: |
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puts(" FIT image found\n"); |
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if (!fit_check_format(hdr)) { |
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puts("Bad FIT image format!\n"); |
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return 1; |
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} |
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fit_print_contents(hdr); |
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if (!fit_all_image_verify(hdr)) { |
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puts("Bad hash in FIT image!\n"); |
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return 1; |
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} |
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return 0; |
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#endif |
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default: |
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puts("Unknown image format!\n"); |
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break; |
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} |
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return 1; |
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} |
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U_BOOT_CMD( |
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iminfo, CONFIG_SYS_MAXARGS, 1, do_iminfo, |
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"print header information for application image", |
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"addr [addr ...]\n" |
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" - print header information for application image starting at\n" |
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" address 'addr' in memory; this includes verification of the\n" |
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" image contents (magic number, header and payload checksums)" |
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); |
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#endif |
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/*******************************************************************/ |
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/* imls - list all images found in flash */ |
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/*******************************************************************/ |
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#if defined(CONFIG_CMD_IMLS) |
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static int do_imls_nor(void) |
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{ |
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flash_info_t *info; |
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int i, j; |
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void *hdr; |
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for (i = 0, info = &flash_info[0]; |
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i < CONFIG_SYS_MAX_FLASH_BANKS; ++i, ++info) { |
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if (info->flash_id == FLASH_UNKNOWN) |
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goto next_bank; |
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for (j = 0; j < info->sector_count; ++j) { |
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hdr = (void *)info->start[j]; |
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if (!hdr) |
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goto next_sector; |
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switch (genimg_get_format(hdr)) { |
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#if defined(CONFIG_IMAGE_FORMAT_LEGACY) |
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case IMAGE_FORMAT_LEGACY: |
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if (!image_check_hcrc(hdr)) |
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goto next_sector; |
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printf("Legacy Image at %08lX:\n", (ulong)hdr); |
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image_print_contents(hdr); |
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puts(" Verifying Checksum ... "); |
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if (!image_check_dcrc(hdr)) { |
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puts("Bad Data CRC\n"); |
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} else { |
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puts("OK\n"); |
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} |
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break; |
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#endif |
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#if defined(CONFIG_FIT) |
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case IMAGE_FORMAT_FIT: |
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if (!fit_check_format(hdr)) |
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goto next_sector; |
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printf("FIT Image at %08lX:\n", (ulong)hdr); |
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fit_print_contents(hdr); |
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break; |
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#endif |
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default: |
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goto next_sector; |
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} |
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next_sector: ; |
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} |
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next_bank: ; |
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} |
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return 0; |
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} |
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#endif |
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#if defined(CONFIG_CMD_IMLS_NAND) |
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static int nand_imls_legacyimage(struct mtd_info *mtd, int nand_dev, |
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loff_t off, size_t len) |
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{ |
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void *imgdata; |
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int ret; |
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imgdata = malloc(len); |
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if (!imgdata) { |
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printf("May be a Legacy Image at NAND device %d offset %08llX:\n", |
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nand_dev, off); |
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printf(" Low memory(cannot allocate memory for image)\n"); |
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return -ENOMEM; |
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} |
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ret = nand_read_skip_bad(mtd, off, &len, NULL, mtd->size, imgdata); |
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if (ret < 0 && ret != -EUCLEAN) { |
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free(imgdata); |
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return ret; |
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} |
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if (!image_check_hcrc(imgdata)) { |
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free(imgdata); |
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return 0; |
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} |
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printf("Legacy Image at NAND device %d offset %08llX:\n", |
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nand_dev, off); |
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image_print_contents(imgdata); |
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puts(" Verifying Checksum ... "); |
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if (!image_check_dcrc(imgdata)) |
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puts("Bad Data CRC\n"); |
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else |
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puts("OK\n"); |
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free(imgdata); |
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return 0; |
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} |
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static int nand_imls_fitimage(struct mtd_info *mtd, int nand_dev, loff_t off, |
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size_t len) |
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{ |
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void *imgdata; |
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int ret; |
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imgdata = malloc(len); |
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if (!imgdata) { |
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printf("May be a FIT Image at NAND device %d offset %08llX:\n", |
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nand_dev, off); |
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printf(" Low memory(cannot allocate memory for image)\n"); |
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return -ENOMEM; |
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} |
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ret = nand_read_skip_bad(mtd, off, &len, NULL, mtd->size, imgdata); |
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if (ret < 0 && ret != -EUCLEAN) { |
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free(imgdata); |
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return ret; |
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} |
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if (!fit_check_format(imgdata)) { |
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free(imgdata); |
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return 0; |
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} |
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printf("FIT Image at NAND device %d offset %08llX:\n", nand_dev, off); |
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fit_print_contents(imgdata); |
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free(imgdata); |
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return 0; |
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} |
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static int do_imls_nand(void) |
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{ |
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struct mtd_info *mtd; |
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int nand_dev = nand_curr_device; |
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size_t len; |
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loff_t off; |
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u32 buffer[16]; |
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if (nand_dev < 0 || nand_dev >= CONFIG_SYS_MAX_NAND_DEVICE) { |
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puts("\nNo NAND devices available\n"); |
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return -ENODEV; |
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} |
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printf("\n"); |
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for (nand_dev = 0; nand_dev < CONFIG_SYS_MAX_NAND_DEVICE; nand_dev++) { |
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mtd = get_nand_dev_by_index(nand_dev); |
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if (!mtd->name || !mtd->size) |
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continue; |
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for (off = 0; off < mtd->size; off += mtd->erasesize) { |
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const image_header_t *header; |
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int ret; |
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if (nand_block_isbad(mtd, off)) |
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continue; |
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len = sizeof(buffer); |
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ret = nand_read(mtd, off, &len, (u8 *)buffer); |
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if (ret < 0 && ret != -EUCLEAN) { |
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printf("NAND read error %d at offset %08llX\n", |
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ret, off); |
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continue; |
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} |
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switch (genimg_get_format(buffer)) { |
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#if defined(CONFIG_IMAGE_FORMAT_LEGACY) |
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case IMAGE_FORMAT_LEGACY: |
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header = (const image_header_t *)buffer; |
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len = image_get_image_size(header); |
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nand_imls_legacyimage(mtd, nand_dev, off, len); |
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break; |
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#endif |
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#if defined(CONFIG_FIT) |
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case IMAGE_FORMAT_FIT: |
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len = fit_get_size(buffer); |
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nand_imls_fitimage(mtd, nand_dev, off, len); |
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break; |
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#endif |
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} |
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} |
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} |
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return 0; |
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} |
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#endif |
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#if defined(CONFIG_CMD_IMLS) || defined(CONFIG_CMD_IMLS_NAND) |
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static int do_imls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
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{ |
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int ret_nor = 0, ret_nand = 0; |
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#if defined(CONFIG_CMD_IMLS) |
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ret_nor = do_imls_nor(); |
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#endif |
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#if defined(CONFIG_CMD_IMLS_NAND) |
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ret_nand = do_imls_nand(); |
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#endif |
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if (ret_nor) |
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return ret_nor; |
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if (ret_nand) |
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return ret_nand; |
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return (0); |
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} |
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U_BOOT_CMD( |
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imls, 1, 1, do_imls, |
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"list all images found in flash", |
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"\n" |
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" - Prints information about all images found at sector/block\n" |
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" boundaries in nor/nand flash." |
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); |
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#endif
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