GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/bootloader/u-boot-2020.01/cmd/bootm.c

@@ -0,0 +1,549 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2000-2009
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ */
+
+/*
+ * Boot support
+ */
+#include <common.h>
+#include <bootm.h>
+#include <command.h>
+#include <env.h>
+#include <errno.h>
+#include <image.h>
+#include <malloc.h>
+#include <nand.h>
+#include <asm/byteorder.h>
+#include <linux/ctype.h>
+#include <linux/err.h>
+#include <u-boot/zlib.h>
+#include <mapmem.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#if defined(CONFIG_CMD_IMI)
+static int image_info(unsigned long addr);
+#endif
+
+#if defined(CONFIG_CMD_IMLS)
+#include <flash.h>
+#include <mtd/cfi_flash.h>
+extern flash_info_t flash_info[]; /* info for FLASH chips */
+#endif
+
+#if defined(CONFIG_CMD_IMLS) || defined(CONFIG_CMD_IMLS_NAND)
+static int do_imls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
+#endif
+
+/* we overload the cmd field with our state machine info instead of a
+ * function pointer */
+static cmd_tbl_t cmd_bootm_sub[] = {
+	U_BOOT_CMD_MKENT(start, 0, 1, (void *)BOOTM_STATE_START, "", ""),
+	U_BOOT_CMD_MKENT(loados, 0, 1, (void *)BOOTM_STATE_LOADOS, "", ""),
+#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
+	U_BOOT_CMD_MKENT(ramdisk, 0, 1, (void *)BOOTM_STATE_RAMDISK, "", ""),
+#endif
+#ifdef CONFIG_OF_LIBFDT
+	U_BOOT_CMD_MKENT(fdt, 0, 1, (void *)BOOTM_STATE_FDT, "", ""),
+#endif
+	U_BOOT_CMD_MKENT(cmdline, 0, 1, (void *)BOOTM_STATE_OS_CMDLINE, "", ""),
+	U_BOOT_CMD_MKENT(bdt, 0, 1, (void *)BOOTM_STATE_OS_BD_T, "", ""),
+	U_BOOT_CMD_MKENT(prep, 0, 1, (void *)BOOTM_STATE_OS_PREP, "", ""),
+	U_BOOT_CMD_MKENT(fake, 0, 1, (void *)BOOTM_STATE_OS_FAKE_GO, "", ""),
+	U_BOOT_CMD_MKENT(go, 0, 1, (void *)BOOTM_STATE_OS_GO, "", ""),
+};
+
+static int do_bootm_subcommand(cmd_tbl_t *cmdtp, int flag, int argc,
+			char * const argv[])
+{
+	int ret = 0;
+	long state;
+	cmd_tbl_t *c;
+
+	c = find_cmd_tbl(argv[0], &cmd_bootm_sub[0], ARRAY_SIZE(cmd_bootm_sub));
+	argc--; argv++;
+
+	if (c) {
+		state = (long)c->cmd;
+		if (state == BOOTM_STATE_START)
+			state |= BOOTM_STATE_FINDOS | BOOTM_STATE_FINDOTHER;
+	} else {
+		/* Unrecognized command */
+		return CMD_RET_USAGE;
+	}
+
+	if (((state & BOOTM_STATE_START) != BOOTM_STATE_START) &&
+	    images.state >= state) {
+		printf("Trying to execute a command out of order\n");
+		return CMD_RET_USAGE;
+	}
+
+	ret = do_bootm_states(cmdtp, flag, argc, argv, state, &images, 0);
+
+	return ret;
+}
+
+/*******************************************************************/
+/* bootm - boot application image from image in memory */
+/*******************************************************************/
+
+int do_bootm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+#ifdef CONFIG_NEEDS_MANUAL_RELOC
+	static int relocated = 0;
+
+	if (!relocated) {
+		int i;
+
+		/* relocate names of sub-command table */
+		for (i = 0; i < ARRAY_SIZE(cmd_bootm_sub); i++)
+			cmd_bootm_sub[i].name += gd->reloc_off;
+
+		relocated = 1;
+	}
+#endif
+
+	/* determine if we have a sub command */
+	argc--; argv++;
+	if (argc > 0) {
+		char *endp;
+
+		simple_strtoul(argv[0], &endp, 16);
+		/* endp pointing to NULL means that argv[0] was just a
+		 * valid number, pass it along to the normal bootm processing
+		 *
+		 * If endp is ':' or '#' assume a FIT identifier so pass
+		 * along for normal processing.
+		 *
+		 * Right now we assume the first arg should never be '-'
+		 */
+		if ((*endp != 0) && (*endp != ':') && (*endp != '#'))
+			return do_bootm_subcommand(cmdtp, flag, argc, argv);
+	}
+
+	return do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_START |
+		BOOTM_STATE_FINDOS | BOOTM_STATE_FINDOTHER |
+		BOOTM_STATE_LOADOS |
+#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
+		BOOTM_STATE_RAMDISK |
+#endif
+#if defined(CONFIG_PPC) || defined(CONFIG_MIPS)
+		BOOTM_STATE_OS_CMDLINE |
+#endif
+		BOOTM_STATE_OS_PREP | BOOTM_STATE_OS_FAKE_GO |
+		BOOTM_STATE_OS_GO, &images, 1);
+}
+
+int bootm_maybe_autostart(cmd_tbl_t *cmdtp, const char *cmd)
+{
+	const char *ep = env_get("autostart");
+
+	if (ep && !strcmp(ep, "yes")) {
+		char *local_args[2];
+		local_args[0] = (char *)cmd;
+		local_args[1] = NULL;
+		printf("Automatic boot of image at addr 0x%08lX ...\n", load_addr);
+		return do_bootm(cmdtp, 0, 1, local_args);
+	}
+
+	return 0;
+}
+
+#ifdef CONFIG_SYS_LONGHELP
+static char bootm_help_text[] =
+	"[addr [arg ...]]\n    - boot application image stored in memory\n"
+	"\tpassing arguments 'arg ...'; when booting a Linux kernel,\n"
+	"\t'arg' can be the address of an initrd image\n"
+#if defined(CONFIG_OF_LIBFDT)
+	"\tWhen booting a Linux kernel which requires a flat device-tree\n"
+	"\ta third argument is required which is the address of the\n"
+	"\tdevice-tree blob. To boot that kernel without an initrd image,\n"
+	"\tuse a '-' for the second argument. If you do not pass a third\n"
+	"\ta bd_info struct will be passed instead\n"
+#endif
+#if defined(CONFIG_FIT)
+	"\t\nFor the new multi component uImage format (FIT) addresses\n"
+	"\tmust be extended to include component or configuration unit name:\n"
+	"\taddr:<subimg_uname> - direct component image specification\n"
+	"\taddr#<conf_uname>   - configuration specification\n"
+	"\tUse iminfo command to get the list of existing component\n"
+	"\timages and configurations.\n"
+#endif
+	"\nSub-commands to do part of the bootm sequence.  The sub-commands "
+	"must be\n"
+	"issued in the order below (it's ok to not issue all sub-commands):\n"
+	"\tstart [addr [arg ...]]\n"
+	"\tloados  - load OS image\n"
+#if defined(CONFIG_SYS_BOOT_RAMDISK_HIGH)
+	"\tramdisk - relocate initrd, set env initrd_start/initrd_end\n"
+#endif
+#if defined(CONFIG_OF_LIBFDT)
+	"\tfdt     - relocate flat device tree\n"
+#endif
+	"\tcmdline - OS specific command line processing/setup\n"
+	"\tbdt     - OS specific bd_t processing\n"
+	"\tprep    - OS specific prep before relocation or go\n"
+#if defined(CONFIG_TRACE)
+	"\tfake    - OS specific fake start without go\n"
+#endif
+	"\tgo      - start OS";
+#endif
+
+U_BOOT_CMD(
+	bootm,	CONFIG_SYS_MAXARGS,	1,	do_bootm,
+	"boot application image from memory", bootm_help_text
+);
+
+/*******************************************************************/
+/* bootd - boot default image */
+/*******************************************************************/
+#if defined(CONFIG_CMD_BOOTD)
+int do_bootd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	return run_command(env_get("bootcmd"), flag);
+}
+
+U_BOOT_CMD(
+	boot,	1,	1,	do_bootd,
+	"boot default, i.e., run 'bootcmd'",
+	""
+);
+
+/* keep old command name "bootd" for backward compatibility */
+U_BOOT_CMD(
+	bootd, 1,	1,	do_bootd,
+	"boot default, i.e., run 'bootcmd'",
+	""
+);
+
+#endif
+
+
+/*******************************************************************/
+/* iminfo - print header info for a requested image */
+/*******************************************************************/
+#if defined(CONFIG_CMD_IMI)
+static int do_iminfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	int	arg;
+	ulong	addr;
+	int	rcode = 0;
+
+	if (argc < 2) {
+		return image_info(load_addr);
+	}
+
+	for (arg = 1; arg < argc; ++arg) {
+		addr = simple_strtoul(argv[arg], NULL, 16);
+		if (image_info(addr) != 0)
+			rcode = 1;
+	}
+	return rcode;
+}
+
+static int image_info(ulong addr)
+{
+	void *hdr = (void *)map_sysmem(addr, 0);
+
+	printf("\n## Checking Image at %08lx ...\n", addr);
+
+	switch (genimg_get_format(hdr)) {
+#if defined(CONFIG_LEGACY_IMAGE_FORMAT)
+	case IMAGE_FORMAT_LEGACY:
+		puts("   Legacy image found\n");
+		if (!image_check_magic(hdr)) {
+			puts("   Bad Magic Number\n");
+			unmap_sysmem(hdr);
+			return 1;
+		}
+
+		if (!image_check_hcrc(hdr)) {
+			puts("   Bad Header Checksum\n");
+			unmap_sysmem(hdr);
+			return 1;
+		}
+
+		image_print_contents(hdr);
+
+		puts("   Verifying Checksum ... ");
+		if (!image_check_dcrc(hdr)) {
+			puts("   Bad Data CRC\n");
+			unmap_sysmem(hdr);
+			return 1;
+		}
+		puts("OK\n");
+		unmap_sysmem(hdr);
+		return 0;
+#endif
+#if defined(CONFIG_ANDROID_BOOT_IMAGE)
+	case IMAGE_FORMAT_ANDROID:
+		puts("   Android image found\n");
+		android_print_contents(hdr);
+		unmap_sysmem(hdr);
+		return 0;
+#endif
+#if defined(CONFIG_FIT)
+	case IMAGE_FORMAT_FIT:
+		puts("   FIT image found\n");
+
+		if (!fit_check_format(hdr)) {
+			puts("Bad FIT image format!\n");
+			unmap_sysmem(hdr);
+			return 1;
+		}
+
+		fit_print_contents(hdr);
+
+		if (!fit_all_image_verify(hdr)) {
+			puts("Bad hash in FIT image!\n");
+			unmap_sysmem(hdr);
+			return 1;
+		}
+
+		unmap_sysmem(hdr);
+		return 0;
+#endif
+	default:
+		puts("Unknown image format!\n");
+		break;
+	}
+
+	unmap_sysmem(hdr);
+	return 1;
+}
+
+U_BOOT_CMD(
+	iminfo,	CONFIG_SYS_MAXARGS,	1,	do_iminfo,
+	"print header information for application image",
+	"addr [addr ...]\n"
+	"    - print header information for application image starting at\n"
+	"      address 'addr' in memory; this includes verification of the\n"
+	"      image contents (magic number, header and payload checksums)"
+);
+#endif
+
+
+/*******************************************************************/
+/* imls - list all images found in flash */
+/*******************************************************************/
+#if defined(CONFIG_CMD_IMLS)
+static int do_imls_nor(void)
+{
+	flash_info_t *info;
+	int i, j;
+	void *hdr;
+
+	for (i = 0, info = &flash_info[0];
+		i < CONFIG_SYS_MAX_FLASH_BANKS; ++i, ++info) {
+
+		if (info->flash_id == FLASH_UNKNOWN)
+			goto next_bank;
+		for (j = 0; j < info->sector_count; ++j) {
+
+			hdr = (void *)info->start[j];
+			if (!hdr)
+				goto next_sector;
+
+			switch (genimg_get_format(hdr)) {
+#if defined(CONFIG_LEGACY_IMAGE_FORMAT)
+			case IMAGE_FORMAT_LEGACY:
+				if (!image_check_hcrc(hdr))
+					goto next_sector;
+
+				printf("Legacy Image at %08lX:\n", (ulong)hdr);
+				image_print_contents(hdr);
+
+				puts("   Verifying Checksum ... ");
+				if (!image_check_dcrc(hdr)) {
+					puts("Bad Data CRC\n");
+				} else {
+					puts("OK\n");
+				}
+				break;
+#endif
+#if defined(CONFIG_FIT)
+			case IMAGE_FORMAT_FIT:
+				if (!fit_check_format(hdr))
+					goto next_sector;
+
+				printf("FIT Image at %08lX:\n", (ulong)hdr);
+				fit_print_contents(hdr);
+				break;
+#endif
+			default:
+				goto next_sector;
+			}
+
+next_sector:		;
+		}
+next_bank:	;
+	}
+	return 0;
+}
+#endif
+
+#if defined(CONFIG_CMD_IMLS_NAND)
+static int nand_imls_legacyimage(struct mtd_info *mtd, int nand_dev,
+				 loff_t off, size_t len)
+{
+	void *imgdata;
+	int ret;
+
+	imgdata = malloc(len);
+	if (!imgdata) {
+		printf("May be a Legacy Image at NAND device %d offset %08llX:\n",
+				nand_dev, off);
+		printf("   Low memory(cannot allocate memory for image)\n");
+		return -ENOMEM;
+	}
+
+	ret = nand_read_skip_bad(mtd, off, &len, NULL, mtd->size, imgdata);
+	if (ret < 0 && ret != -EUCLEAN) {
+		free(imgdata);
+		return ret;
+	}
+
+	if (!image_check_hcrc(imgdata)) {
+		free(imgdata);
+		return 0;
+	}
+
+	printf("Legacy Image at NAND device %d offset %08llX:\n",
+			nand_dev, off);
+	image_print_contents(imgdata);
+
+	puts("   Verifying Checksum ... ");
+	if (!image_check_dcrc(imgdata))
+		puts("Bad Data CRC\n");
+	else
+		puts("OK\n");
+
+	free(imgdata);
+
+	return 0;
+}
+
+static int nand_imls_fitimage(struct mtd_info *mtd, int nand_dev, loff_t off,
+			      size_t len)
+{
+	void *imgdata;
+	int ret;
+
+	imgdata = malloc(len);
+	if (!imgdata) {
+		printf("May be a FIT Image at NAND device %d offset %08llX:\n",
+				nand_dev, off);
+		printf("   Low memory(cannot allocate memory for image)\n");
+		return -ENOMEM;
+	}
+
+	ret = nand_read_skip_bad(mtd, off, &len, NULL, mtd->size, imgdata);
+	if (ret < 0 && ret != -EUCLEAN) {
+		free(imgdata);
+		return ret;
+	}
+
+	if (!fit_check_format(imgdata)) {
+		free(imgdata);
+		return 0;
+	}
+
+	printf("FIT Image at NAND device %d offset %08llX:\n", nand_dev, off);
+
+	fit_print_contents(imgdata);
+	free(imgdata);
+
+	return 0;
+}
+
+static int do_imls_nand(void)
+{
+	struct mtd_info *mtd;
+	int nand_dev = nand_curr_device;
+	size_t len;
+	loff_t off;
+	u32 buffer[16];
+
+	if (nand_dev < 0 || nand_dev >= CONFIG_SYS_MAX_NAND_DEVICE) {
+		puts("\nNo NAND devices available\n");
+		return -ENODEV;
+	}
+
+	printf("\n");
+
+	for (nand_dev = 0; nand_dev < CONFIG_SYS_MAX_NAND_DEVICE; nand_dev++) {
+		mtd = get_nand_dev_by_index(nand_dev);
+		if (!mtd->name || !mtd->size)
+			continue;
+
+		for (off = 0; off < mtd->size; off += mtd->erasesize) {
+			const image_header_t *header;
+			int ret;
+
+			if (nand_block_isbad(mtd, off))
+				continue;
+
+			len = sizeof(buffer);
+
+			ret = nand_read(mtd, off, &len, (u8 *)buffer);
+			if (ret < 0 && ret != -EUCLEAN) {
+				printf("NAND read error %d at offset %08llX\n",
+						ret, off);
+				continue;
+			}
+
+			switch (genimg_get_format(buffer)) {
+#if defined(CONFIG_LEGACY_IMAGE_FORMAT)
+			case IMAGE_FORMAT_LEGACY:
+				header = (const image_header_t *)buffer;
+
+				len = image_get_image_size(header);
+				nand_imls_legacyimage(mtd, nand_dev, off, len);
+				break;
+#endif
+#if defined(CONFIG_FIT)
+			case IMAGE_FORMAT_FIT:
+				len = fit_get_size(buffer);
+				nand_imls_fitimage(mtd, nand_dev, off, len);
+				break;
+#endif
+			}
+		}
+	}
+
+	return 0;
+}
+#endif
+
+#if defined(CONFIG_CMD_IMLS) || defined(CONFIG_CMD_IMLS_NAND)
+static int do_imls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	int ret_nor = 0, ret_nand = 0;
+
+#if defined(CONFIG_CMD_IMLS)
+	ret_nor = do_imls_nor();
+#endif
+
+#if defined(CONFIG_CMD_IMLS_NAND)
+	ret_nand = do_imls_nand();
+#endif
+
+	if (ret_nor)
+		return ret_nor;
+
+	if (ret_nand)
+		return ret_nand;
+
+	return (0);
+}
+
+U_BOOT_CMD(
+	imls,	1,		1,	do_imls,
+	"list all images found in flash",
+	"\n"
+	"    - Prints information about all images found at sector/block\n"
+	"      boundaries in nor/nand flash."
+);
+#endif