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Diffstat (limited to 'common/bootm.c')
| -rw-r--r-- | common/bootm.c | 913 |
1 files changed, 913 insertions, 0 deletions
diff --git a/common/bootm.c b/common/bootm.c new file mode 100644 index 0000000..7ec2ed8 --- /dev/null +++ b/common/bootm.c @@ -0,0 +1,913 @@ +/* + * (C) Copyright 2000-2009 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef USE_HOSTCC +#include <common.h> +#include <bootstage.h> +#include <bzlib.h> +#include <fdt_support.h> +#include <lmb.h> +#include <malloc.h> +#include <asm/io.h> +#include <linux/lzo.h> +#include <lzma/LzmaTypes.h> +#include <lzma/LzmaDec.h> +#include <lzma/LzmaTools.h> +#if defined(CONFIG_CMD_USB) +#include <usb.h> +#endif +#else +#include "mkimage.h" +#endif + +#include <command.h> +#include <bootm.h> +#include <image.h> + +#ifndef CONFIG_SYS_BOOTM_LEN +/* use 8MByte as default max gunzip size */ +#define CONFIG_SYS_BOOTM_LEN 0x800000 +#endif + +#define IH_INITRD_ARCH IH_ARCH_DEFAULT + +#ifndef USE_HOSTCC + +DECLARE_GLOBAL_DATA_PTR; + +static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc, + char * const argv[], bootm_headers_t *images, + ulong *os_data, ulong *os_len); + +#ifdef CONFIG_LMB +static void boot_start_lmb(bootm_headers_t *images) +{ + ulong mem_start; + phys_size_t mem_size; + + lmb_init(&images->lmb); + + mem_start = getenv_bootm_low(); + mem_size = getenv_bootm_size(); + + lmb_add(&images->lmb, (phys_addr_t)mem_start, mem_size); + + arch_lmb_reserve(&images->lmb); + board_lmb_reserve(&images->lmb); +} +#else +#define lmb_reserve(lmb, base, size) +static inline void boot_start_lmb(bootm_headers_t *images) { } +#endif + +static int bootm_start(cmd_tbl_t *cmdtp, int flag, int argc, + char * const argv[]) +{ + memset((void *)&images, 0, sizeof(images)); + images.verify = getenv_yesno("verify"); + + boot_start_lmb(&images); + + bootstage_mark_name(BOOTSTAGE_ID_BOOTM_START, "bootm_start"); + images.state = BOOTM_STATE_START; + + return 0; +} + +static int bootm_find_os(cmd_tbl_t *cmdtp, int flag, int argc, + char * const argv[]) +{ + const void *os_hdr; + bool ep_found = false; + + /* get kernel image header, start address and length */ + os_hdr = boot_get_kernel(cmdtp, flag, argc, argv, + &images, &images.os.image_start, &images.os.image_len); + if (images.os.image_len == 0) { + puts("ERROR: can't get kernel image!\n"); + return 1; + } + + /* get image parameters */ + switch (genimg_get_format(os_hdr)) { +#if defined(CONFIG_IMAGE_FORMAT_LEGACY) + case IMAGE_FORMAT_LEGACY: + images.os.type = image_get_type(os_hdr); + images.os.comp = image_get_comp(os_hdr); + images.os.os = image_get_os(os_hdr); + + images.os.end = image_get_image_end(os_hdr); + images.os.load = image_get_load(os_hdr); + break; +#endif +#if defined(CONFIG_FIT) + case IMAGE_FORMAT_FIT: + if (fit_image_get_type(images.fit_hdr_os, + images.fit_noffset_os, + &images.os.type)) { + puts("Can't get image type!\n"); + bootstage_error(BOOTSTAGE_ID_FIT_TYPE); + return 1; + } + + if (fit_image_get_comp(images.fit_hdr_os, + images.fit_noffset_os, + &images.os.comp)) { + puts("Can't get image compression!\n"); + bootstage_error(BOOTSTAGE_ID_FIT_COMPRESSION); + return 1; + } + + if (fit_image_get_os(images.fit_hdr_os, images.fit_noffset_os, + &images.os.os)) { + puts("Can't get image OS!\n"); + bootstage_error(BOOTSTAGE_ID_FIT_OS); + return 1; + } + + images.os.end = fit_get_end(images.fit_hdr_os); + + if (fit_image_get_load(images.fit_hdr_os, images.fit_noffset_os, + &images.os.load)) { + puts("Can't get image load address!\n"); + bootstage_error(BOOTSTAGE_ID_FIT_LOADADDR); + return 1; + } + break; +#endif +#ifdef CONFIG_ANDROID_BOOT_IMAGE + case IMAGE_FORMAT_ANDROID: + images.os.type = IH_TYPE_KERNEL; + images.os.comp = IH_COMP_NONE; + images.os.os = IH_OS_LINUX; + images.ep = images.os.load; + ep_found = true; + + images.os.end = android_image_get_end(os_hdr); + images.os.load = android_image_get_kload(os_hdr); + break; +#endif + default: + puts("ERROR: unknown image format type!\n"); + return 1; + } + + /* find kernel entry point */ + if (images.legacy_hdr_valid) { + images.ep = image_get_ep(&images.legacy_hdr_os_copy); +#if defined(CONFIG_FIT) + } else if (images.fit_uname_os) { + int ret; + + ret = fit_image_get_entry(images.fit_hdr_os, + images.fit_noffset_os, &images.ep); + if (ret) { + puts("Can't get entry point property!\n"); + return 1; + } +#endif + } else if (!ep_found) { + puts("Could not find kernel entry point!\n"); + return 1; + } + + if (images.os.type == IH_TYPE_KERNEL_NOLOAD) { + images.os.load = images.os.image_start; + images.ep += images.os.load; + } + + images.os.start = (ulong)os_hdr; + + return 0; +} + +static int bootm_find_ramdisk(int flag, int argc, char * const argv[]) +{ + int ret; + + /* find ramdisk */ + ret = boot_get_ramdisk(argc, argv, &images, IH_INITRD_ARCH, + &images.rd_start, &images.rd_end); + if (ret) { + puts("Ramdisk image is corrupt or invalid\n"); + return 1; + } + + return 0; +} + +#if defined(CONFIG_OF_LIBFDT) +static int bootm_find_fdt(int flag, int argc, char * const argv[]) +{ + int ret; + + /* find flattened device tree */ + ret = boot_get_fdt(flag, argc, argv, IH_ARCH_DEFAULT, &images, + &images.ft_addr, &images.ft_len); + if (ret) { + puts("Could not find a valid device tree\n"); + return 1; + } + + set_working_fdt_addr(images.ft_addr); + + return 0; +} +#endif + +int bootm_find_ramdisk_fdt(int flag, int argc, char * const argv[]) +{ + if (bootm_find_ramdisk(flag, argc, argv)) + return 1; + +#if defined(CONFIG_OF_LIBFDT) + if (bootm_find_fdt(flag, argc, argv)) + return 1; +#endif + + return 0; +} + +static int bootm_find_other(cmd_tbl_t *cmdtp, int flag, int argc, + char * const argv[]) +{ + if (((images.os.type == IH_TYPE_KERNEL) || + (images.os.type == IH_TYPE_KERNEL_NOLOAD) || + (images.os.type == IH_TYPE_MULTI)) && + (images.os.os == IH_OS_LINUX || + images.os.os == IH_OS_VXWORKS)) + return bootm_find_ramdisk_fdt(flag, argc, argv); + + return 0; +} +#endif /* USE_HOSTCC */ + +/** + * decomp_image() - decompress the operating system + * + * @comp: Compression algorithm that is used (IH_COMP_...) + * @load: Destination load address in U-Boot memory + * @image_start Image start address (where we are decompressing from) + * @type: OS type (IH_OS_...) + * @load_bug: Place to decompress to + * @image_buf: Address to decompress from + * @return 0 if OK, -ve on error (BOOTM_ERR_...) + */ +static int decomp_image(int comp, ulong load, ulong image_start, int type, + void *load_buf, void *image_buf, ulong image_len, + ulong *load_end) +{ + const char *type_name = genimg_get_type_name(type); + __attribute__((unused)) uint unc_len = CONFIG_SYS_BOOTM_LEN; + + *load_end = load; + switch (comp) { + case IH_COMP_NONE: + if (load == image_start) { + printf(" XIP %s ... ", type_name); + } else { + printf(" Loading %s ... ", type_name); + memmove_wd(load_buf, image_buf, image_len, CHUNKSZ); + } + *load_end = load + image_len; + break; +#ifdef CONFIG_GZIP + case IH_COMP_GZIP: + printf(" Uncompressing %s ... ", type_name); + if (gunzip(load_buf, unc_len, image_buf, &image_len) != 0) { + puts("GUNZIP: uncompress, out-of-mem or overwrite error - must RESET board to recover\n"); + return BOOTM_ERR_RESET; + } + + *load_end = load + image_len; + break; +#endif /* CONFIG_GZIP */ +#ifdef CONFIG_BZIP2 + case IH_COMP_BZIP2: + printf(" Uncompressing %s ... ", type_name); + /* + * If we've got less than 4 MB of malloc() space, + * use slower decompression algorithm which requires + * at most 2300 KB of memory. + */ + int i = BZ2_bzBuffToBuffDecompress(load_buf, &unc_len, + image_buf, image_len, + CONFIG_SYS_MALLOC_LEN < (4096 * 1024), 0); + if (i != BZ_OK) { + printf("BUNZIP2: uncompress or overwrite error %d - must RESET board to recover\n", + i); + return BOOTM_ERR_RESET; + } + + *load_end = load + unc_len; + break; +#endif /* CONFIG_BZIP2 */ +#ifdef CONFIG_LZMA + case IH_COMP_LZMA: { + SizeT lzma_len = unc_len; + int ret; + + printf(" Uncompressing %s ... ", type_name); + + ret = lzmaBuffToBuffDecompress(load_buf, &lzma_len, + image_buf, image_len); + unc_len = lzma_len; + if (ret != SZ_OK) { + printf("LZMA: uncompress or overwrite error %d - must RESET board to recover\n", + ret); + bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE); + return BOOTM_ERR_RESET; + } + *load_end = load + unc_len; + break; + } +#endif /* CONFIG_LZMA */ +#ifdef CONFIG_LZO + case IH_COMP_LZO: { + size_t size = unc_len; + int ret; + + printf(" Uncompressing %s ... ", type_name); + + ret = lzop_decompress(image_buf, image_len, load_buf, &size); + if (ret != LZO_E_OK) { + printf("LZO: uncompress or overwrite error %d - must RESET board to recover\n", + ret); + return BOOTM_ERR_RESET; + } + + *load_end = load + size; + break; + } +#endif /* CONFIG_LZO */ + default: + printf("Unimplemented compression type %d\n", comp); + return BOOTM_ERR_UNIMPLEMENTED; + } + + puts("OK\n"); + + return 0; +} + +#ifndef USE_HOSTCC +static int bootm_load_os(bootm_headers_t *images, unsigned long *load_end, + int boot_progress) +{ + image_info_t os = images->os; + ulong load = os.load; + ulong blob_start = os.start; + ulong blob_end = os.end; + ulong image_start = os.image_start; + ulong image_len = os.image_len; + bool no_overlap; + void *load_buf, *image_buf; + int err; + + load_buf = map_sysmem(load, 0); + image_buf = map_sysmem(os.image_start, image_len); + err = decomp_image(os.comp, load, os.image_start, os.type, load_buf, + image_buf, image_len, load_end); + if (err) { + bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE); + return err; + } + flush_cache(load, (*load_end - load) * sizeof(ulong)); + + debug(" kernel loaded at 0x%08lx, end = 0x%08lx\n", load, *load_end); + bootstage_mark(BOOTSTAGE_ID_KERNEL_LOADED); + + no_overlap = (os.comp == IH_COMP_NONE && load == image_start); + + if (!no_overlap && (load < blob_end) && (*load_end > blob_start)) { + debug("images.os.start = 0x%lX, images.os.end = 0x%lx\n", + blob_start, blob_end); + debug("images.os.load = 0x%lx, load_end = 0x%lx\n", load, + *load_end); + + /* Check what type of image this is. */ + if (images->legacy_hdr_valid) { + if (image_get_type(&images->legacy_hdr_os_copy) + == IH_TYPE_MULTI) + puts("WARNING: legacy format multi component image overwritten\n"); + return BOOTM_ERR_OVERLAP; + } else { + puts("ERROR: new format image overwritten - must RESET the board to recover\n"); + bootstage_error(BOOTSTAGE_ID_OVERWRITTEN); + return BOOTM_ERR_RESET; + } + } + + return 0; +} + +/** + * bootm_disable_interrupts() - Disable interrupts in preparation for load/boot + * + * @return interrupt flag (0 if interrupts were disabled, non-zero if they were + * enabled) + */ +ulong bootm_disable_interrupts(void) +{ + ulong iflag; + + /* + * We have reached the point of no return: we are going to + * overwrite all exception vector code, so we cannot easily + * recover from any failures any more... + */ + iflag = disable_interrupts(); +#ifdef CONFIG_NETCONSOLE + /* Stop the ethernet stack if NetConsole could have left it up */ + eth_halt(); + eth_unregister(eth_get_dev()); +#endif + +#if defined(CONFIG_CMD_USB) + /* + * turn off USB to prevent the host controller from writing to the + * SDRAM while Linux is booting. This could happen (at least for OHCI + * controller), because the HCCA (Host Controller Communication Area) + * lies within the SDRAM and the host controller writes continously to + * this area (as busmaster!). The HccaFrameNumber is for example + * updated every 1 ms within the HCCA structure in SDRAM! For more + * details see the OpenHCI specification. + */ + usb_stop(); +#endif + return iflag; +} + +#if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY) + +#define CONSOLE_ARG "console=" +#define CONSOLE_ARG_LEN (sizeof(CONSOLE_ARG) - 1) + +static void fixup_silent_linux(void) +{ + char *buf; + const char *env_val; + char *cmdline = getenv("bootargs"); + int want_silent; + + /* + * Only fix cmdline when requested. The environment variable can be: + * + * no - we never fixup + * yes - we always fixup + * unset - we rely on the console silent flag + */ + want_silent = getenv_yesno("silent_linux"); + if (want_silent == 0) + return; + else if (want_silent == -1 && !(gd->flags & GD_FLG_SILENT)) + return; + + debug("before silent fix-up: %s\n", cmdline); + if (cmdline && (cmdline[0] != '\0')) { + char *start = strstr(cmdline, CONSOLE_ARG); + + /* Allocate space for maximum possible new command line */ + buf = malloc(strlen(cmdline) + 1 + CONSOLE_ARG_LEN + 1); + if (!buf) { + debug("%s: out of memory\n", __func__); + return; + } + + if (start) { + char *end = strchr(start, ' '); + int num_start_bytes = start - cmdline + CONSOLE_ARG_LEN; + + strncpy(buf, cmdline, num_start_bytes); + if (end) + strcpy(buf + num_start_bytes, end); + else + buf[num_start_bytes] = '\0'; + } else { + sprintf(buf, "%s %s", cmdline, CONSOLE_ARG); + } + env_val = buf; + } else { + buf = NULL; + env_val = CONSOLE_ARG; + } + + setenv("bootargs", env_val); + debug("after silent fix-up: %s\n", env_val); + free(buf); +} +#endif /* CONFIG_SILENT_CONSOLE */ + +/** + * Execute selected states of the bootm command. + * + * Note the arguments to this state must be the first argument, Any 'bootm' + * or sub-command arguments must have already been taken. + * + * Note that if states contains more than one flag it MUST contain + * BOOTM_STATE_START, since this handles and consumes the command line args. + * + * Also note that aside from boot_os_fn functions and bootm_load_os no other + * functions we store the return value of in 'ret' may use a negative return + * value, without special handling. + * + * @param cmdtp Pointer to bootm command table entry + * @param flag Command flags (CMD_FLAG_...) + * @param argc Number of subcommand arguments (0 = no arguments) + * @param argv Arguments + * @param states Mask containing states to run (BOOTM_STATE_...) + * @param images Image header information + * @param boot_progress 1 to show boot progress, 0 to not do this + * @return 0 if ok, something else on error. Some errors will cause this + * function to perform a reboot! If states contains BOOTM_STATE_OS_GO + * then the intent is to boot an OS, so this function will not return + * unless the image type is standalone. + */ +int do_bootm_states(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[], + int states, bootm_headers_t *images, int boot_progress) +{ + boot_os_fn *boot_fn; + ulong iflag = 0; + int ret = 0, need_boot_fn; + + images->state |= states; + + /* + * Work through the states and see how far we get. We stop on + * any error. + */ + if (states & BOOTM_STATE_START) + ret = bootm_start(cmdtp, flag, argc, argv); + + if (!ret && (states & BOOTM_STATE_FINDOS)) + ret = bootm_find_os(cmdtp, flag, argc, argv); + + if (!ret && (states & BOOTM_STATE_FINDOTHER)) { + ret = bootm_find_other(cmdtp, flag, argc, argv); + argc = 0; /* consume the args */ + } + + /* Load the OS */ + if (!ret && (states & BOOTM_STATE_LOADOS)) { + ulong load_end; + + iflag = bootm_disable_interrupts(); + ret = bootm_load_os(images, &load_end, 0); + if (ret == 0) + lmb_reserve(&images->lmb, images->os.load, + (load_end - images->os.load)); + else if (ret && ret != BOOTM_ERR_OVERLAP) + goto err; + else if (ret == BOOTM_ERR_OVERLAP) + ret = 0; +#if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY) + if (images->os.os == IH_OS_LINUX) + fixup_silent_linux(); +#endif + } + + /* Relocate the ramdisk */ +#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH + if (!ret && (states & BOOTM_STATE_RAMDISK)) { + ulong rd_len = images->rd_end - images->rd_start; + + ret = boot_ramdisk_high(&images->lmb, images->rd_start, + rd_len, &images->initrd_start, &images->initrd_end); + if (!ret) { + setenv_hex("initrd_start", images->initrd_start); + setenv_hex("initrd_end", images->initrd_end); + } + } +#endif +#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_LMB) + if (!ret && (states & BOOTM_STATE_FDT)) { + boot_fdt_add_mem_rsv_regions(&images->lmb, images->ft_addr); + ret = boot_relocate_fdt(&images->lmb, &images->ft_addr, + &images->ft_len); + } +#endif + + /* From now on, we need the OS boot function */ + if (ret) + return ret; + boot_fn = bootm_os_get_boot_func(images->os.os); + need_boot_fn = states & (BOOTM_STATE_OS_CMDLINE | + BOOTM_STATE_OS_BD_T | BOOTM_STATE_OS_PREP | + BOOTM_STATE_OS_FAKE_GO | BOOTM_STATE_OS_GO); + if (boot_fn == NULL && need_boot_fn) { + if (iflag) + enable_interrupts(); + printf("ERROR: booting os '%s' (%d) is not supported\n", + genimg_get_os_name(images->os.os), images->os.os); + bootstage_error(BOOTSTAGE_ID_CHECK_BOOT_OS); + return 1; + } + + /* Call various other states that are not generally used */ + if (!ret && (states & BOOTM_STATE_OS_CMDLINE)) + ret = boot_fn(BOOTM_STATE_OS_CMDLINE, argc, argv, images); + if (!ret && (states & BOOTM_STATE_OS_BD_T)) + ret = boot_fn(BOOTM_STATE_OS_BD_T, argc, argv, images); + if (!ret && (states & BOOTM_STATE_OS_PREP)) + ret = boot_fn(BOOTM_STATE_OS_PREP, argc, argv, images); + +#ifdef CONFIG_TRACE + /* Pretend to run the OS, then run a user command */ + if (!ret && (states & BOOTM_STATE_OS_FAKE_GO)) { + char *cmd_list = getenv("fakegocmd"); + + ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_FAKE_GO, + images, boot_fn); + if (!ret && cmd_list) + ret = run_command_list(cmd_list, -1, flag); + } +#endif + + /* Check for unsupported subcommand. */ + if (ret) { + puts("subcommand not supported\n"); + return ret; + } + + /* Now run the OS! We hope this doesn't return */ + if (!ret && (states & BOOTM_STATE_OS_GO)) + ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_GO, + images, boot_fn); + + /* Deal with any fallout */ +err: + if (iflag) + enable_interrupts(); + + if (ret == BOOTM_ERR_UNIMPLEMENTED) + bootstage_error(BOOTSTAGE_ID_DECOMP_UNIMPL); + else if (ret == BOOTM_ERR_RESET) + do_reset(cmdtp, flag, argc, argv); + + return ret; +} + +#if defined(CONFIG_IMAGE_FORMAT_LEGACY) +/** + * image_get_kernel - verify legacy format kernel image + * @img_addr: in RAM address of the legacy format image to be verified + * @verify: data CRC verification flag + * + * image_get_kernel() verifies legacy image integrity and returns pointer to + * legacy image header if image verification was completed successfully. + * + * returns: + * pointer to a legacy image header if valid image was found + * otherwise return NULL + */ +static image_header_t *image_get_kernel(ulong img_addr, int verify) +{ + image_header_t *hdr = (image_header_t *)img_addr; + + if (!image_check_magic(hdr)) { + puts("Bad Magic Number\n"); + bootstage_error(BOOTSTAGE_ID_CHECK_MAGIC); + return NULL; + } + bootstage_mark(BOOTSTAGE_ID_CHECK_HEADER); + + if (!image_check_hcrc(hdr)) { + puts("Bad Header Checksum\n"); + bootstage_error(BOOTSTAGE_ID_CHECK_HEADER); + return NULL; + } + + bootstage_mark(BOOTSTAGE_ID_CHECK_CHECKSUM); + image_print_contents(hdr); + + if (verify) { + puts(" Verifying Checksum ... "); + if (!image_check_dcrc(hdr)) { + printf("Bad Data CRC\n"); + bootstage_error(BOOTSTAGE_ID_CHECK_CHECKSUM); + return NULL; + } + puts("OK\n"); + } + bootstage_mark(BOOTSTAGE_ID_CHECK_ARCH); + + if (!image_check_target_arch(hdr)) { + printf("Unsupported Architecture 0x%x\n", image_get_arch(hdr)); + bootstage_error(BOOTSTAGE_ID_CHECK_ARCH); + return NULL; + } + return hdr; +} +#endif + +/** + * boot_get_kernel - find kernel image + * @os_data: pointer to a ulong variable, will hold os data start address + * @os_len: pointer to a ulong variable, will hold os data length + * + * boot_get_kernel() tries to find a kernel image, verifies its integrity + * and locates kernel data. + * + * returns: + * pointer to image header if valid image was found, plus kernel start + * address and length, otherwise NULL + */ +static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc, + char * const argv[], bootm_headers_t *images, + ulong *os_data, ulong *os_len) +{ +#if defined(CONFIG_IMAGE_FORMAT_LEGACY) + image_header_t *hdr; +#endif + ulong img_addr; + const void *buf; +#if defined(CONFIG_FIT) + const char *fit_uname_config = NULL; + const char *fit_uname_kernel = NULL; + int os_noffset; +#endif + + /* find out kernel image address */ + if (argc < 1) { + img_addr = load_addr; + debug("* kernel: default image load address = 0x%08lx\n", + load_addr); +#if defined(CONFIG_FIT) + } else if (fit_parse_conf(argv[0], load_addr, &img_addr, + &fit_uname_config)) { + debug("* kernel: config '%s' from image at 0x%08lx\n", + fit_uname_config, img_addr); + } else if (fit_parse_subimage(argv[0], load_addr, &img_addr, + &fit_uname_kernel)) { + debug("* kernel: subimage '%s' from image at 0x%08lx\n", + fit_uname_kernel, img_addr); +#endif + } else { + img_addr = simple_strtoul(argv[0], NULL, 16); + debug("* kernel: cmdline image address = 0x%08lx\n", + img_addr); + } + + bootstage_mark(BOOTSTAGE_ID_CHECK_MAGIC); + + /* copy from dataflash if needed */ + img_addr = genimg_get_image(img_addr); + + /* check image type, for FIT images get FIT kernel node */ + *os_data = *os_len = 0; + buf = map_sysmem(img_addr, 0); + switch (genimg_get_format(buf)) { +#if defined(CONFIG_IMAGE_FORMAT_LEGACY) + case IMAGE_FORMAT_LEGACY: + printf("## Booting kernel from Legacy Image at %08lx ...\n", + img_addr); + hdr = image_get_kernel(img_addr, images->verify); + if (!hdr) + return NULL; + bootstage_mark(BOOTSTAGE_ID_CHECK_IMAGETYPE); + + /* get os_data and os_len */ + switch (image_get_type(hdr)) { + case IH_TYPE_KERNEL: + case IH_TYPE_KERNEL_NOLOAD: + *os_data = image_get_data(hdr); + *os_len = image_get_data_size(hdr); + break; + case IH_TYPE_MULTI: + image_multi_getimg(hdr, 0, os_data, os_len); + break; + case IH_TYPE_STANDALONE: + *os_data = image_get_data(hdr); + *os_len = image_get_data_size(hdr); + break; + default: + printf("Wrong Image Type for %s command\n", + cmdtp->name); + bootstage_error(BOOTSTAGE_ID_CHECK_IMAGETYPE); + return NULL; + } + + /* + * copy image header to allow for image overwrites during + * kernel decompression. + */ + memmove(&images->legacy_hdr_os_copy, hdr, + sizeof(image_header_t)); + + /* save pointer to image header */ + images->legacy_hdr_os = hdr; + + images->legacy_hdr_valid = 1; + bootstage_mark(BOOTSTAGE_ID_DECOMP_IMAGE); + break; +#endif +#if defined(CONFIG_FIT) + case IMAGE_FORMAT_FIT: + os_noffset = fit_image_load(images, img_addr, + &fit_uname_kernel, &fit_uname_config, + IH_ARCH_DEFAULT, IH_TYPE_KERNEL, + BOOTSTAGE_ID_FIT_KERNEL_START, + FIT_LOAD_IGNORED, os_data, os_len); + if (os_noffset < 0) + return NULL; + + images->fit_hdr_os = map_sysmem(img_addr, 0); + images->fit_uname_os = fit_uname_kernel; + images->fit_uname_cfg = fit_uname_config; + images->fit_noffset_os = os_noffset; + break; +#endif +#ifdef CONFIG_ANDROID_BOOT_IMAGE + case IMAGE_FORMAT_ANDROID: + printf("## Booting Android Image at 0x%08lx ...\n", img_addr); + if (android_image_get_kernel(buf, images->verify, + os_data, os_len)) + return NULL; + break; +#endif + default: + printf("Wrong Image Format for %s command\n", cmdtp->name); + bootstage_error(BOOTSTAGE_ID_FIT_KERNEL_INFO); + return NULL; + } + + debug(" kernel data at 0x%08lx, len = 0x%08lx (%ld)\n", + *os_data, *os_len, *os_len); + + return buf; +} +#else /* USE_HOSTCC */ + +void memmove_wd(void *to, void *from, size_t len, ulong chunksz) +{ + memmove(to, from, len); +} + +static int bootm_host_load_image(const void *fit, int req_image_type) +{ + const char *fit_uname_config = NULL; + ulong data, len; + bootm_headers_t images; + int noffset; + ulong load_end; + uint8_t image_type; + uint8_t imape_comp; + void *load_buf; + int ret; + + memset(&images, '\0', sizeof(images)); + images.verify = 1; + noffset = fit_image_load(&images, (ulong)fit, + NULL, &fit_uname_config, + IH_ARCH_DEFAULT, req_image_type, -1, + FIT_LOAD_IGNORED, &data, &len); + if (noffset < 0) + return noffset; + if (fit_image_get_type(fit, noffset, &image_type)) { + puts("Can't get image type!\n"); + return -EINVAL; + } + + if (fit_image_get_comp(fit, noffset, &imape_comp)) { + puts("Can't get image compression!\n"); + return -EINVAL; + } + + /* Allow the image to expand by a factor of 4, should be safe */ + load_buf = malloc((1 << 20) + len * 4); + ret = decomp_image(imape_comp, 0, data, image_type, load_buf, + (void *)data, len, &load_end); + free(load_buf); + if (ret && ret != BOOTM_ERR_UNIMPLEMENTED) + return ret; + + return 0; +} + +int bootm_host_load_images(const void *fit, int cfg_noffset) +{ + static uint8_t image_types[] = { + IH_TYPE_KERNEL, + IH_TYPE_FLATDT, + IH_TYPE_RAMDISK, + }; + int err = 0; + int i; + + for (i = 0; i < ARRAY_SIZE(image_types); i++) { + int ret; + + ret = bootm_host_load_image(fit, image_types[i]); + if (!err && ret && ret != -ENOENT) + err = ret; + } + + /* Return the first error we found */ + return err; +} + +#endif /* ndef USE_HOSTCC */ |