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Diffstat (limited to 'u-boot/common/cmd_bootm.c')
| -rw-r--r-- | u-boot/common/cmd_bootm.c | 1500 |
1 files changed, 1500 insertions, 0 deletions
diff --git a/u-boot/common/cmd_bootm.c b/u-boot/common/cmd_bootm.c new file mode 100644 index 0000000..18019d6 --- /dev/null +++ b/u-boot/common/cmd_bootm.c @@ -0,0 +1,1500 @@ +/* + * (C) Copyright 2000-2009 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + + +/* + * Boot support + */ +#include <common.h> +#include <watchdog.h> +#include <command.h> +#include <image.h> +#include <malloc.h> +#include <u-boot/zlib.h> +#include <bzlib.h> +#include <environment.h> +#include <lmb.h> +#include <linux/ctype.h> +#include <asm/byteorder.h> + +#if defined(CONFIG_CMD_USB) +#include <usb.h> +#endif + +#ifdef CONFIG_SYS_HUSH_PARSER +#include <hush.h> +#endif + +#if defined(CONFIG_OF_LIBFDT) +#include <fdt.h> +#include <libfdt.h> +#include <fdt_support.h> +#endif + +#ifdef CONFIG_LZMA +#include <lzma/LzmaTypes.h> +#include <lzma/LzmaDec.h> +#include <lzma/LzmaTools.h> +#endif /* CONFIG_LZMA */ + +#ifdef CONFIG_LZO +#include <linux/lzo.h> +#endif /* CONFIG_LZO */ + +DECLARE_GLOBAL_DATA_PTR; + +#ifndef CONFIG_SYS_BOOTM_LEN +#define CONFIG_SYS_BOOTM_LEN 0x800000 /* use 8MByte as default max gunzip size */ +#endif + +#ifdef CONFIG_BZIP2 +extern void bz_internal_error(int); +#endif + +#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 */ +static int do_imls (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]); +#endif + +#ifdef CONFIG_SILENT_CONSOLE +static void fixup_silent_linux (void); +#endif + +static image_header_t *image_get_kernel (ulong img_addr, int verify); +#if defined(CONFIG_FIT) +static int fit_check_kernel (const void *fit, int os_noffset, int verify); +#endif + +static 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); + +/* + * Continue booting an OS image; caller already has: + * - copied image header to global variable `header' + * - checked header magic number, checksums (both header & image), + * - verified image architecture (PPC) and type (KERNEL or MULTI), + * - loaded (first part of) image to header load address, + * - disabled interrupts. + */ +typedef int boot_os_fn (int flag, int argc, char * const argv[], + bootm_headers_t *images); /* pointers to os/initrd/fdt */ + +#ifdef CONFIG_BOOTM_LINUX +extern boot_os_fn do_bootm_linux; +#endif +#ifdef CONFIG_BOOTM_NETBSD +static boot_os_fn do_bootm_netbsd; +#endif +#if defined(CONFIG_LYNXKDI) +static boot_os_fn do_bootm_lynxkdi; +extern void lynxkdi_boot (image_header_t *); +#endif +#ifdef CONFIG_BOOTM_RTEMS +static boot_os_fn do_bootm_rtems; +#endif +#if defined(CONFIG_BOOTM_OSE) +static boot_os_fn do_bootm_ose; +#endif +#if defined(CONFIG_CMD_ELF) +static boot_os_fn do_bootm_vxworks; +static boot_os_fn do_bootm_qnxelf; +int do_bootvx (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]); +int do_bootelf (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]); +#endif +#if defined(CONFIG_INTEGRITY) +static boot_os_fn do_bootm_integrity; +#endif + +static boot_os_fn *boot_os[] = { +#ifdef CONFIG_BOOTM_LINUX + [IH_OS_LINUX] = do_bootm_linux, +#endif +#ifdef CONFIG_BOOTM_NETBSD + [IH_OS_NETBSD] = do_bootm_netbsd, +#endif +#ifdef CONFIG_LYNXKDI + [IH_OS_LYNXOS] = do_bootm_lynxkdi, +#endif +#ifdef CONFIG_BOOTM_RTEMS + [IH_OS_RTEMS] = do_bootm_rtems, +#endif +#if defined(CONFIG_BOOTM_OSE) + [IH_OS_OSE] = do_bootm_ose, +#endif +#if defined(CONFIG_CMD_ELF) + [IH_OS_VXWORKS] = do_bootm_vxworks, + [IH_OS_QNX] = do_bootm_qnxelf, +#endif +#ifdef CONFIG_INTEGRITY + [IH_OS_INTEGRITY] = do_bootm_integrity, +#endif +}; + +static bootm_headers_t images; /* pointers to os/initrd/fdt images */ + +/* Allow for arch specific config before we boot */ +void __arch_preboot_os(void) +{ + /* please define platform specific arch_preboot_os() */ +} +void arch_preboot_os(void) __attribute__((weak, alias("__arch_preboot_os"))); + +#if defined(__ARM__) + #define IH_INITRD_ARCH IH_ARCH_ARM +#elif defined(__avr32__) + #define IH_INITRD_ARCH IH_ARCH_AVR32 +#elif defined(__bfin__) + #define IH_INITRD_ARCH IH_ARCH_BLACKFIN +#elif defined(__I386__) + #define IH_INITRD_ARCH IH_ARCH_I386 +#elif defined(__M68K__) + #define IH_INITRD_ARCH IH_ARCH_M68K +#elif defined(__microblaze__) + #define IH_INITRD_ARCH IH_ARCH_MICROBLAZE +#elif defined(__mips__) + #define IH_INITRD_ARCH IH_ARCH_MIPS +#elif defined(__nios2__) + #define IH_INITRD_ARCH IH_ARCH_NIOS2 +#elif defined(__PPC__) + #define IH_INITRD_ARCH IH_ARCH_PPC +#elif defined(__sh__) + #define IH_INITRD_ARCH IH_ARCH_SH +#elif defined(__sparc__) + #define IH_INITRD_ARCH IH_ARCH_SPARC +#else +# error Unknown CPU type +#endif + +static void bootm_start_lmb(void) +{ +#ifdef CONFIG_LMB + 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) +#endif +} + +static int bootm_start(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + void *os_hdr; + int ret; + + memset ((void *)&images, 0, sizeof (images)); + images.verify = getenv_yesno ("verify"); + + bootm_start_lmb(); + + /* 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)) { + 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; +#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"); + show_boot_progress (-109); + 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"); + show_boot_progress (-110); + 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"); + show_boot_progress (-111); + 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"); + show_boot_progress (-112); + return 1; + } + 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) { + 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 { + puts ("Could not find kernel entry point!\n"); + return 1; + } + + if (((images.os.type == IH_TYPE_KERNEL) || + (images.os.type == IH_TYPE_MULTI)) && + (images.os.os == IH_OS_LINUX)) { + /* 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; + } + +#if defined(CONFIG_OF_LIBFDT) + /* find flattened device tree */ + ret = boot_get_fdt (flag, argc, argv, &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); +#endif + } + + images.os.start = (ulong)os_hdr; + images.state = BOOTM_STATE_START; + + return 0; +} + +#define BOOTM_ERR_RESET -1 +#define BOOTM_ERR_OVERLAP -2 +#define BOOTM_ERR_UNIMPLEMENTED -3 +static int bootm_load_os(image_info_t os, ulong *load_end, int boot_progress) +{ + uint8_t comp = os.comp; + 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; + uint unc_len = CONFIG_SYS_BOOTM_LEN; +#if defined(CONFIG_LZMA) || defined(CONFIG_LZO) + int ret; +#endif /* defined(CONFIG_LZMA) || defined(CONFIG_LZO) */ + + const char *type_name = genimg_get_type_name (os.type); + + switch (comp) { + case IH_COMP_NONE: + if (load == blob_start) { + printf (" XIP %s ... ", type_name); + } else { + printf (" Loading %s ... ", type_name); + memmove_wd ((void *)load, (void *)image_start, + image_len, CHUNKSZ); + } + *load_end = load + image_len; + puts("OK\n"); + break; +#ifdef CONFIG_GZIP + case IH_COMP_GZIP: + printf (" Uncompressing %s ... ", type_name); + if (gunzip ((void *)load, unc_len, + (uchar *)image_start, &image_len) != 0) { + puts ("GUNZIP: uncompress, out-of-mem or overwrite error " + "- must RESET board to recover\n"); + if (boot_progress) + show_boot_progress (-6); + 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 ((char*)load, + &unc_len, (char *)image_start, 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); + if (boot_progress) + show_boot_progress (-6); + 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; + printf (" Uncompressing %s ... ", type_name); + + ret = lzmaBuffToBuffDecompress( + (unsigned char *)load, &lzma_len, + (unsigned char *)image_start, image_len); + unc_len = lzma_len; + if (ret != SZ_OK) { + printf ("LZMA: uncompress or overwrite error %d " + "- must RESET board to recover\n", ret); + show_boot_progress (-6); + return BOOTM_ERR_RESET; + } + *load_end = load + unc_len; + break; + } +#endif /* CONFIG_LZMA */ +#ifdef CONFIG_LZO + case IH_COMP_LZO: + printf (" Uncompressing %s ... ", type_name); + + ret = lzop_decompress((const unsigned char *)image_start, + image_len, (unsigned char *)load, + &unc_len); + if (ret != LZO_E_OK) { + printf ("LZO: uncompress or overwrite error %d " + "- must RESET board to recover\n", ret); + if (boot_progress) + show_boot_progress (-6); + return BOOTM_ERR_RESET; + } + + *load_end = load + unc_len; + break; +#endif /* CONFIG_LZO */ + default: + printf ("Unimplemented compression type %d\n", comp); + return BOOTM_ERR_UNIMPLEMENTED; + } + puts ("OK\n"); + debug (" kernel loaded at 0x%08lx, end = 0x%08lx\n", load, *load_end); + if (boot_progress) + show_boot_progress (7); + + if ((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); + + return BOOTM_ERR_OVERLAP; + } + + return 0; +} + +static int bootm_start_standalone(ulong iflag, int argc, char * const argv[]) +{ + char *s; + int (*appl)(int, char * const []); + + /* Don't start if "autostart" is set to "no" */ + if (((s = getenv("autostart")) != NULL) && (strcmp(s, "no") == 0)) { + char buf[32]; + sprintf(buf, "%lX", images.os.image_len); + setenv("filesize", buf); + return 0; + } + appl = (int (*)(int, char * const []))ntohl(images.ep); + (*appl)(argc-1, &argv[1]); + + return 0; +} + +/* 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(go, 0, 1, (void *)BOOTM_STATE_OS_GO, "", ""), +}; + +int do_bootm_subcommand (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + int ret = 0; + int state; + cmd_tbl_t *c; + boot_os_fn *boot_fn; + + c = find_cmd_tbl(argv[1], &cmd_bootm_sub[0], ARRAY_SIZE(cmd_bootm_sub)); + + if (c) { + state = (int)c->cmd; + + /* treat start special since it resets the state machine */ + if (state == BOOTM_STATE_START) { + argc--; + argv++; + return bootm_start(cmdtp, flag, argc, argv); + } + } else { + /* Unrecognized command */ + return cmd_usage(cmdtp); + } + + if (images.state >= state) { + printf ("Trying to execute a command out of order\n"); + return cmd_usage(cmdtp); + } + + images.state |= state; + boot_fn = boot_os[images.os.os]; + + switch (state) { + ulong load_end; + case BOOTM_STATE_START: + /* should never occur */ + break; + case BOOTM_STATE_LOADOS: + ret = bootm_load_os(images.os, &load_end, 0); + if (ret) + return ret; + + lmb_reserve(&images.lmb, images.os.load, + (load_end - images.os.load)); + break; +#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH + case BOOTM_STATE_RAMDISK: + { + ulong rd_len = images.rd_end - images.rd_start; + char str[17]; + + ret = boot_ramdisk_high(&images.lmb, images.rd_start, + rd_len, &images.initrd_start, &images.initrd_end); + if (ret) + return ret; + + sprintf(str, "%lx", images.initrd_start); + setenv("initrd_start", str); + sprintf(str, "%lx", images.initrd_end); + setenv("initrd_end", str); + } + break; +#endif +#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_SYS_BOOTMAPSZ) + case BOOTM_STATE_FDT: + { + ulong bootmap_base = getenv_bootm_low(); + ret = boot_relocate_fdt(&images.lmb, bootmap_base, + &images.ft_addr, &images.ft_len); + break; + } +#endif + case BOOTM_STATE_OS_CMDLINE: + ret = boot_fn(BOOTM_STATE_OS_CMDLINE, argc, argv, &images); + if (ret) + printf ("cmdline subcommand not supported\n"); + break; + case BOOTM_STATE_OS_BD_T: + ret = boot_fn(BOOTM_STATE_OS_BD_T, argc, argv, &images); + if (ret) + printf ("bdt subcommand not supported\n"); + break; + case BOOTM_STATE_OS_PREP: + ret = boot_fn(BOOTM_STATE_OS_PREP, argc, argv, &images); + if (ret) + printf ("prep subcommand not supported\n"); + break; + case BOOTM_STATE_OS_GO: + disable_interrupts(); + arch_preboot_os(); + boot_fn(BOOTM_STATE_OS_GO, argc, argv, &images); + break; + } + + return ret; +} + +/*******************************************************************/ +/* bootm - boot application image from image in memory */ +/*******************************************************************/ + +int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + ulong iflag; + ulong load_end = 0; + int ret; + boot_os_fn *boot_fn; +#ifdef CONFIG_NEEDS_MANUAL_RELOC + static int relocated = 0; + + /* relocate boot function table */ + if (!relocated) { + int i; + for (i = 0; i < ARRAY_SIZE(boot_os); i++) + if (boot_os[i] != NULL) + boot_os[i] += gd->reloc_off; + relocated = 1; + } +#endif + + /* determine if we have a sub command */ + if (argc > 1) { + char *endp; + + simple_strtoul(argv[1], &endp, 16); + /* endp pointing to NULL means that argv[1] 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); + } + + if (bootm_start(cmdtp, flag, argc, argv)) + return 1; + + /* + * 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(); + +#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 + + ret = bootm_load_os(images.os, &load_end, 1); + + if (ret < 0) { + if (ret == BOOTM_ERR_RESET) + do_reset (cmdtp, flag, argc, argv); + if (ret == BOOTM_ERR_OVERLAP) { + 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"); + } else { + puts ("ERROR: new format image overwritten - " + "must RESET the board to recover\n"); + show_boot_progress (-113); + do_reset (cmdtp, flag, argc, argv); + } + } + if (ret == BOOTM_ERR_UNIMPLEMENTED) { + if (iflag) + enable_interrupts(); + show_boot_progress (-7); + return 1; + } + } + + lmb_reserve(&images.lmb, images.os.load, (load_end - images.os.load)); + + if (images.os.type == IH_TYPE_STANDALONE) { + if (iflag) + enable_interrupts(); + /* This may return when 'autostart' is 'no' */ + bootm_start_standalone(iflag, argc, argv); + return 0; + } + + show_boot_progress (8); + +#ifdef CONFIG_SILENT_CONSOLE + if (images.os.os == IH_OS_LINUX) + fixup_silent_linux(); +#endif + + boot_fn = boot_os[images.os.os]; + + if (boot_fn == NULL) { + if (iflag) + enable_interrupts(); + printf ("ERROR: booting os '%s' (%d) is not supported\n", + genimg_get_os_name(images.os.os), images.os.os); + show_boot_progress (-8); + return 1; + } + + arch_preboot_os(); + + boot_fn(0, argc, argv, &images); + + show_boot_progress (-9); +#ifdef DEBUG + puts ("\n## Control returned to monitor - resetting...\n"); +#endif + do_reset (cmdtp, flag, argc, argv); + + return 1; +} + +/** + * 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"); + show_boot_progress (-1); + return NULL; + } + show_boot_progress (2); + + if (!image_check_hcrc (hdr)) { + puts ("Bad Header Checksum\n"); + show_boot_progress (-2); + return NULL; + } + + show_boot_progress (3); + image_print_contents (hdr); + + if (verify) { + puts (" Verifying Checksum ... "); + if (!image_check_dcrc (hdr)) { + printf ("Bad Data CRC\n"); + show_boot_progress (-3); + return NULL; + } + puts ("OK\n"); + } + show_boot_progress (4); + + if (!image_check_target_arch (hdr)) { + printf ("Unsupported Architecture 0x%x\n", image_get_arch (hdr)); + show_boot_progress (-4); + return NULL; + } + return hdr; +} + +/** + * fit_check_kernel - verify FIT format kernel subimage + * @fit_hdr: pointer to the FIT image header + * os_noffset: kernel subimage node offset within FIT image + * @verify: data CRC verification flag + * + * fit_check_kernel() verifies integrity of the kernel subimage and from + * specified FIT image. + * + * returns: + * 1, on success + * 0, on failure + */ +#if defined (CONFIG_FIT) +static int fit_check_kernel (const void *fit, int os_noffset, int verify) +{ + fit_image_print (fit, os_noffset, " "); + + if (verify) { + puts (" Verifying Hash Integrity ... "); + if (!fit_image_check_hashes (fit, os_noffset)) { + puts ("Bad Data Hash\n"); + show_boot_progress (-104); + return 0; + } + puts ("OK\n"); + } + show_boot_progress (105); + + if (!fit_image_check_target_arch (fit, os_noffset)) { + puts ("Unsupported Architecture\n"); + show_boot_progress (-105); + return 0; + } + + show_boot_progress (106); + if (!fit_image_check_type (fit, os_noffset, IH_TYPE_KERNEL)) { + puts ("Not a kernel image\n"); + show_boot_progress (-106); + return 0; + } + + show_boot_progress (107); + return 1; +} +#endif /* CONFIG_FIT */ + +/** + * 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 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) +{ + image_header_t *hdr; + ulong img_addr; +#if defined(CONFIG_FIT) + void *fit_hdr; + const char *fit_uname_config = NULL; + const char *fit_uname_kernel = NULL; + const void *data; + size_t len; + int cfg_noffset; + int os_noffset; +#endif + + /* find out kernel image address */ + if (argc < 2) { + 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[1], 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[1], 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[1], NULL, 16); + debug ("* kernel: cmdline image address = 0x%08lx\n", img_addr); + } + + show_boot_progress (1); + + /* 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; + switch (genimg_get_format ((void *)img_addr)) { + 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; + show_boot_progress (5); + + /* get os_data and os_len */ + switch (image_get_type (hdr)) { + case IH_TYPE_KERNEL: + *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); + show_boot_progress (-5); + 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; + show_boot_progress (6); + break; +#if defined(CONFIG_FIT) + case IMAGE_FORMAT_FIT: + fit_hdr = (void *)img_addr; + printf ("## Booting kernel from FIT Image at %08lx ...\n", + img_addr); + + if (!fit_check_format (fit_hdr)) { + puts ("Bad FIT kernel image format!\n"); + show_boot_progress (-100); + return NULL; + } + show_boot_progress (100); + + if (!fit_uname_kernel) { + /* + * no kernel image node unit name, try to get config + * node first. If config unit node name is NULL + * fit_conf_get_node() will try to find default config node + */ + show_boot_progress (101); + cfg_noffset = fit_conf_get_node (fit_hdr, fit_uname_config); + if (cfg_noffset < 0) { + show_boot_progress (-101); + return NULL; + } + /* save configuration uname provided in the first + * bootm argument + */ + images->fit_uname_cfg = fdt_get_name (fit_hdr, cfg_noffset, NULL); + printf (" Using '%s' configuration\n", images->fit_uname_cfg); + show_boot_progress (103); + + os_noffset = fit_conf_get_kernel_node (fit_hdr, cfg_noffset); + fit_uname_kernel = fit_get_name (fit_hdr, os_noffset, NULL); + } else { + /* get kernel component image node offset */ + show_boot_progress (102); + os_noffset = fit_image_get_node (fit_hdr, fit_uname_kernel); + } + if (os_noffset < 0) { + show_boot_progress (-103); + return NULL; + } + + printf (" Trying '%s' kernel subimage\n", fit_uname_kernel); + + show_boot_progress (104); + if (!fit_check_kernel (fit_hdr, os_noffset, images->verify)) + return NULL; + + /* get kernel image data address and length */ + if (fit_image_get_data (fit_hdr, os_noffset, &data, &len)) { + puts ("Could not find kernel subimage data!\n"); + show_boot_progress (-107); + return NULL; + } + show_boot_progress (108); + + *os_len = len; + *os_data = (ulong)data; + images->fit_hdr_os = fit_hdr; + images->fit_uname_os = fit_uname_kernel; + images->fit_noffset_os = os_noffset; + break; +#endif + default: + printf ("Wrong Image Format for %s command\n", cmdtp->name); + show_boot_progress (-108); + return NULL; + } + + debug (" kernel data at 0x%08lx, len = 0x%08lx (%ld)\n", + *os_data, *os_len, *os_len); + + return (void *)img_addr; +} + +U_BOOT_CMD( + bootm, CONFIG_SYS_MAXARGS, 1, do_bootm, + "boot application image from memory", + "[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 extened 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_PPC) || defined(CONFIG_M68K) || defined(CONFIG_SPARC) + "\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" + "\tgo - start OS" +); + +/*******************************************************************/ +/* bootd - boot default image */ +/*******************************************************************/ +#if defined(CONFIG_CMD_BOOTD) +int do_bootd (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + int rcode = 0; + +#ifndef CONFIG_SYS_HUSH_PARSER + if (run_command (getenv ("bootcmd"), flag) < 0) + rcode = 1; +#else + if (parse_string_outer (getenv ("bootcmd"), + FLAG_PARSE_SEMICOLON | FLAG_EXIT_FROM_LOOP) != 0) + rcode = 1; +#endif + return rcode; +} + +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) +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 *)addr; + + printf ("\n## Checking Image at %08lx ...\n", addr); + + switch (genimg_get_format (hdr)) { + case IMAGE_FORMAT_LEGACY: + puts (" Legacy image found\n"); + if (!image_check_magic (hdr)) { + puts (" Bad Magic Number\n"); + return 1; + } + + if (!image_check_hcrc (hdr)) { + puts (" Bad Header Checksum\n"); + return 1; + } + + image_print_contents (hdr); + + puts (" Verifying Checksum ... "); + if (!image_check_dcrc (hdr)) { + puts (" Bad Data CRC\n"); + return 1; + } + puts ("OK\n"); + return 0; +#if defined(CONFIG_FIT) + case IMAGE_FORMAT_FIT: + puts (" FIT image found\n"); + + if (!fit_check_format (hdr)) { + puts ("Bad FIT image format!\n"); + return 1; + } + + fit_print_contents (hdr); + + if (!fit_all_image_check_hashes (hdr)) { + puts ("Bad hash in FIT image!\n"); + return 1; + } + + return 0; +#endif + default: + puts ("Unknown image format!\n"); + break; + } + + 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) +int do_imls (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + 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)) { + 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; +#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); +} + +U_BOOT_CMD( + imls, 1, 1, do_imls, + "list all images found in flash", + "\n" + " - Prints information about all images found at sector\n" + " boundaries in flash." +); +#endif + +/*******************************************************************/ +/* helper routines */ +/*******************************************************************/ +#ifdef CONFIG_SILENT_CONSOLE +static void fixup_silent_linux () +{ + char buf[256], *start, *end; + char *cmdline = getenv ("bootargs"); + + /* Only fix cmdline when requested */ + if (!(gd->flags & GD_FLG_SILENT)) + return; + + debug ("before silent fix-up: %s\n", cmdline); + if (cmdline) { + if ((start = strstr (cmdline, "console=")) != NULL) { + end = strchr (start, ' '); + strncpy (buf, cmdline, (start - cmdline + 8)); + if (end) + strcpy (buf + (start - cmdline + 8), end); + else + buf[start - cmdline + 8] = '\0'; + } else { + strcpy (buf, cmdline); + strcat (buf, " console="); + } + } else { + strcpy (buf, "console="); + } + + setenv ("bootargs", buf); + debug ("after silent fix-up: %s\n", buf); +} +#endif /* CONFIG_SILENT_CONSOLE */ + + +/*******************************************************************/ +/* OS booting routines */ +/*******************************************************************/ + +#ifdef CONFIG_BOOTM_NETBSD +static int do_bootm_netbsd (int flag, int argc, char * const argv[], + bootm_headers_t *images) +{ + void (*loader)(bd_t *, image_header_t *, char *, char *); + image_header_t *os_hdr, *hdr; + ulong kernel_data, kernel_len; + char *consdev; + char *cmdline; + + if ((flag != 0) && (flag != BOOTM_STATE_OS_GO)) + return 1; + +#if defined(CONFIG_FIT) + if (!images->legacy_hdr_valid) { + fit_unsupported_reset ("NetBSD"); + return 1; + } +#endif + hdr = images->legacy_hdr_os; + + /* + * Booting a (NetBSD) kernel image + * + * This process is pretty similar to a standalone application: + * The (first part of an multi-) image must be a stage-2 loader, + * which in turn is responsible for loading & invoking the actual + * kernel. The only differences are the parameters being passed: + * besides the board info strucure, the loader expects a command + * line, the name of the console device, and (optionally) the + * address of the original image header. + */ + os_hdr = NULL; + if (image_check_type (&images->legacy_hdr_os_copy, IH_TYPE_MULTI)) { + image_multi_getimg (hdr, 1, &kernel_data, &kernel_len); + if (kernel_len) + os_hdr = hdr; + } + + consdev = ""; +#if defined (CONFIG_8xx_CONS_SMC1) + consdev = "smc1"; +#elif defined (CONFIG_8xx_CONS_SMC2) + consdev = "smc2"; +#elif defined (CONFIG_8xx_CONS_SCC2) + consdev = "scc2"; +#elif defined (CONFIG_8xx_CONS_SCC3) + consdev = "scc3"; +#endif + + if (argc > 2) { + ulong len; + int i; + + for (i = 2, len = 0; i < argc; i += 1) + len += strlen (argv[i]) + 1; + cmdline = malloc (len); + + for (i = 2, len = 0; i < argc; i += 1) { + if (i > 2) + cmdline[len++] = ' '; + strcpy (&cmdline[len], argv[i]); + len += strlen (argv[i]); + } + } else if ((cmdline = getenv ("bootargs")) == NULL) { + cmdline = ""; + } + + loader = (void (*)(bd_t *, image_header_t *, char *, char *))images->ep; + + printf ("## Transferring control to NetBSD stage-2 loader (at address %08lx) ...\n", + (ulong)loader); + + show_boot_progress (15); + + /* + * NetBSD Stage-2 Loader Parameters: + * r3: ptr to board info data + * r4: image address + * r5: console device + * r6: boot args string + */ + (*loader) (gd->bd, os_hdr, consdev, cmdline); + + return 1; +} +#endif /* CONFIG_BOOTM_NETBSD*/ + +#ifdef CONFIG_LYNXKDI +static int do_bootm_lynxkdi (int flag, int argc, char * const argv[], + bootm_headers_t *images) +{ + image_header_t *hdr = &images->legacy_hdr_os_copy; + + if ((flag != 0) && (flag != BOOTM_STATE_OS_GO)) + return 1; + +#if defined(CONFIG_FIT) + if (!images->legacy_hdr_valid) { + fit_unsupported_reset ("Lynx"); + return 1; + } +#endif + + lynxkdi_boot ((image_header_t *)hdr); + + return 1; +} +#endif /* CONFIG_LYNXKDI */ + +#ifdef CONFIG_BOOTM_RTEMS +static int do_bootm_rtems (int flag, int argc, char * const argv[], + bootm_headers_t *images) +{ + void (*entry_point)(bd_t *); + + if ((flag != 0) && (flag != BOOTM_STATE_OS_GO)) + return 1; + +#if defined(CONFIG_FIT) + if (!images->legacy_hdr_valid) { + fit_unsupported_reset ("RTEMS"); + return 1; + } +#endif + + entry_point = (void (*)(bd_t *))images->ep; + + printf ("## Transferring control to RTEMS (at address %08lx) ...\n", + (ulong)entry_point); + + show_boot_progress (15); + + /* + * RTEMS Parameters: + * r3: ptr to board info data + */ + (*entry_point)(gd->bd); + + return 1; +} +#endif /* CONFIG_BOOTM_RTEMS */ + +#if defined(CONFIG_BOOTM_OSE) +static int do_bootm_ose (int flag, int argc, char * const argv[], + bootm_headers_t *images) +{ + void (*entry_point)(void); + + if ((flag != 0) && (flag != BOOTM_STATE_OS_GO)) + return 1; + +#if defined(CONFIG_FIT) + if (!images->legacy_hdr_valid) { + fit_unsupported_reset ("OSE"); + return 1; + } +#endif + + entry_point = (void (*)(void))images->ep; + + printf ("## Transferring control to OSE (at address %08lx) ...\n", + (ulong)entry_point); + + show_boot_progress (15); + + /* + * OSE Parameters: + * None + */ + (*entry_point)(); + + return 1; +} +#endif /* CONFIG_BOOTM_OSE */ + +#if defined(CONFIG_CMD_ELF) +static int do_bootm_vxworks (int flag, int argc, char * const argv[], + bootm_headers_t *images) +{ + char str[80]; + + if ((flag != 0) && (flag != BOOTM_STATE_OS_GO)) + return 1; + +#if defined(CONFIG_FIT) + if (!images->legacy_hdr_valid) { + fit_unsupported_reset ("VxWorks"); + return 1; + } +#endif + + sprintf(str, "%lx", images->ep); /* write entry-point into string */ + setenv("loadaddr", str); + do_bootvx(NULL, 0, 0, NULL); + + return 1; +} + +static int do_bootm_qnxelf(int flag, int argc, char * const argv[], + bootm_headers_t *images) +{ + char *local_args[2]; + char str[16]; + + if ((flag != 0) && (flag != BOOTM_STATE_OS_GO)) + return 1; + +#if defined(CONFIG_FIT) + if (!images->legacy_hdr_valid) { + fit_unsupported_reset ("QNX"); + return 1; + } +#endif + + sprintf(str, "%lx", images->ep); /* write entry-point into string */ + local_args[0] = argv[0]; + local_args[1] = str; /* and provide it via the arguments */ + do_bootelf(NULL, 0, 2, local_args); + + return 1; +} +#endif + +#ifdef CONFIG_INTEGRITY +static int do_bootm_integrity (int flag, int argc, char * const argv[], + bootm_headers_t *images) +{ + void (*entry_point)(void); + + if ((flag != 0) && (flag != BOOTM_STATE_OS_GO)) + return 1; + +#if defined(CONFIG_FIT) + if (!images->legacy_hdr_valid) { + fit_unsupported_reset ("INTEGRITY"); + return 1; + } +#endif + + entry_point = (void (*)(void))images->ep; + + printf ("## Transferring control to INTEGRITY (at address %08lx) ...\n", + (ulong)entry_point); + + show_boot_progress (15); + + /* + * INTEGRITY Parameters: + * None + */ + (*entry_point)(); + + return 1; +} +#endif |