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Diffstat (limited to 'common/image.c')
| -rw-r--r-- | common/image.c | 968 |
1 files changed, 968 insertions, 0 deletions
diff --git a/common/image.c b/common/image.c new file mode 100644 index 00000000000..9e446faa730 --- /dev/null +++ b/common/image.c @@ -0,0 +1,968 @@ +/* + * (C) Copyright 2008 Semihalf + * + * (C) Copyright 2000-2006 + * 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 + */ + +#define DEBUG + +#ifndef USE_HOSTCC +#include <common.h> +#include <watchdog.h> + +#ifdef CONFIG_SHOW_BOOT_PROGRESS +#include <status_led.h> +#endif + +#ifdef CONFIG_HAS_DATAFLASH +#include <dataflash.h> +#endif + +#ifdef CONFIG_LOGBUFFER +#include <logbuff.h> +#endif + +#if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) +#include <rtc.h> +#endif + +#if defined(CONFIG_FIT) +#include <fdt.h> +#include <libfdt.h> +#include <fdt_support.h> +#endif + +#ifdef CONFIG_CMD_BDI +extern int do_bdinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]); +#endif + +DECLARE_GLOBAL_DATA_PTR; + +static image_header_t* image_get_ramdisk (cmd_tbl_t *cmdtp, int flag, + int argc, char *argv[], + ulong rd_addr, uint8_t arch, int verify); +#else +#include "mkimage.h" +#endif /* USE_HOSTCC*/ + +#include <image.h> + +unsigned long crc32 (unsigned long, const unsigned char *, unsigned int); + +int image_check_hcrc (image_header_t *hdr) +{ + ulong hcrc; + ulong len = image_get_header_size (); + image_header_t header; + + /* Copy header so we can blank CRC field for re-calculation */ + memmove (&header, (char *)hdr, image_get_header_size ()); + image_set_hcrc (&header, 0); + + hcrc = crc32 (0, (unsigned char *)&header, len); + + return (hcrc == image_get_hcrc (hdr)); +} + +int image_check_dcrc (image_header_t *hdr) +{ + ulong data = image_get_data (hdr); + ulong len = image_get_data_size (hdr); + ulong dcrc = crc32 (0, (unsigned char *)data, len); + + return (dcrc == image_get_dcrc (hdr)); +} + +#ifndef USE_HOSTCC +int image_check_dcrc_wd (image_header_t *hdr, ulong chunksz) +{ + ulong dcrc = 0; + ulong len = image_get_data_size (hdr); + ulong data = image_get_data (hdr); + +#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG) + ulong cdata = data; + ulong edata = cdata + len; + + while (cdata < edata) { + ulong chunk = edata - cdata; + + if (chunk > chunksz) + chunk = chunksz; + dcrc = crc32 (dcrc, (unsigned char *)cdata, chunk); + cdata += chunk; + + WATCHDOG_RESET (); + } +#else + dcrc = crc32 (0, (unsigned char *)data, len); +#endif + + return (dcrc == image_get_dcrc (hdr)); +} + +int getenv_verify (void) +{ + char *s = getenv ("verify"); + return (s && (*s == 'n')) ? 0 : 1; +} + +int getenv_autostart (void) +{ + char *s = getenv ("autostart"); + return (s && (*s == 'n')) ? 0 : 1; +} + +ulong getenv_bootm_low(void) +{ + char *s = getenv ("bootm_low"); + if (s) { + ulong tmp = simple_strtoul (s, NULL, 16); + return tmp; + } + +#ifdef CFG_SDRAM_BASE + return CFG_SDRAM_BASE; +#else + return 0; +#endif +} + +ulong getenv_bootm_size(void) +{ + char *s = getenv ("bootm_size"); + if (s) { + ulong tmp = simple_strtoul (s, NULL, 16); + return tmp; + } + + return gd->bd->bi_memsize; +} + +void memmove_wd (void *to, void *from, size_t len, ulong chunksz) +{ +#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG) + while (len > 0) { + size_t tail = (len > chunksz) ? chunksz : len; + WATCHDOG_RESET (); + memmove (to, from, tail); + to += tail; + from += tail; + len -= tail; + } +#else /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */ + memmove (to, from, len); +#endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */ +} +#endif /* USE_HOSTCC */ + +/** + * image_multi_count - get component (sub-image) count + * @hdr: pointer to the header of the multi component image + * + * image_multi_count() returns number of components in a multi + * component image. + * + * Note: no checking of the image type is done, caller must pass + * a valid multi component image. + * + * returns: + * number of components + */ +ulong image_multi_count (image_header_t *hdr) +{ + ulong i, count = 0; + ulong *size; + + /* get start of the image payload, which in case of multi + * component images that points to a table of component sizes */ + size = (ulong *)image_get_data (hdr); + + /* count non empty slots */ + for (i = 0; size[i]; ++i) + count++; + + return count; +} + +/** + * image_multi_getimg - get component data address and size + * @hdr: pointer to the header of the multi component image + * @idx: index of the requested component + * @data: pointer to a ulong variable, will hold component data address + * @len: pointer to a ulong variable, will hold component size + * + * image_multi_getimg() returns size and data address for the requested + * component in a multi component image. + * + * Note: no checking of the image type is done, caller must pass + * a valid multi component image. + * + * returns: + * data address and size of the component, if idx is valid + * 0 in data and len, if idx is out of range + */ +void image_multi_getimg (image_header_t *hdr, ulong idx, + ulong *data, ulong *len) +{ + int i; + ulong *size; + ulong offset, tail, count, img_data; + + /* get number of component */ + count = image_multi_count (hdr); + + /* get start of the image payload, which in case of multi + * component images that points to a table of component sizes */ + size = (ulong *)image_get_data (hdr); + + /* get address of the proper component data start, which means + * skipping sizes table (add 1 for last, null entry) */ + img_data = image_get_data (hdr) + (count + 1) * sizeof (ulong); + + if (idx < count) { + *len = size[idx]; + offset = 0; + tail = 0; + + /* go over all indices preceding requested component idx */ + for (i = 0; i < idx; i++) { + /* add up i-th component size */ + offset += size[i]; + + /* add up alignment for i-th component */ + tail += (4 - size[i] % 4); + } + + /* calculate idx-th component data address */ + *data = img_data + offset + tail; + } else { + *len = 0; + *data = 0; + } +} + +#ifndef USE_HOSTCC +const char* image_get_os_name (uint8_t os) +{ + const char *name; + + switch (os) { + case IH_OS_INVALID: name = "Invalid OS"; break; + case IH_OS_NETBSD: name = "NetBSD"; break; + case IH_OS_LINUX: name = "Linux"; break; + case IH_OS_VXWORKS: name = "VxWorks"; break; + case IH_OS_QNX: name = "QNX"; break; + case IH_OS_U_BOOT: name = "U-Boot"; break; + case IH_OS_RTEMS: name = "RTEMS"; break; +#ifdef CONFIG_ARTOS + case IH_OS_ARTOS: name = "ARTOS"; break; +#endif +#ifdef CONFIG_LYNXKDI + case IH_OS_LYNXOS: name = "LynxOS"; break; +#endif + default: name = "Unknown OS"; break; + } + + return name; +} + +const char* image_get_arch_name (uint8_t arch) +{ + const char *name; + + switch (arch) { + case IH_ARCH_INVALID: name = "Invalid Architecture"; break; + case IH_ARCH_ALPHA: name = "Alpha"; break; + case IH_ARCH_ARM: name = "ARM"; break; + case IH_ARCH_AVR32: name = "AVR32"; break; + case IH_ARCH_BLACKFIN: name = "Blackfin"; break; + case IH_ARCH_I386: name = "Intel x86"; break; + case IH_ARCH_IA64: name = "IA64"; break; + case IH_ARCH_M68K: name = "M68K"; break; + case IH_ARCH_MICROBLAZE:name = "Microblaze"; break; + case IH_ARCH_MIPS64: name = "MIPS 64 Bit"; break; + case IH_ARCH_MIPS: name = "MIPS"; break; + case IH_ARCH_NIOS2: name = "Nios-II"; break; + case IH_ARCH_NIOS: name = "Nios"; break; + case IH_ARCH_PPC: name = "PowerPC"; break; + case IH_ARCH_S390: name = "IBM S390"; break; + case IH_ARCH_SH: name = "SuperH"; break; + case IH_ARCH_SPARC64: name = "SPARC 64 Bit"; break; + case IH_ARCH_SPARC: name = "SPARC"; break; + default: name = "Unknown Architecture"; break; + } + + return name; +} + +const char* image_get_type_name (uint8_t type) +{ + const char *name; + + switch (type) { + case IH_TYPE_INVALID: name = "Invalid Image"; break; + case IH_TYPE_STANDALONE:name = "Standalone Program"; break; + case IH_TYPE_KERNEL: name = "Kernel Image"; break; + case IH_TYPE_RAMDISK: name = "RAMDisk Image"; break; + case IH_TYPE_MULTI: name = "Multi-File Image"; break; + case IH_TYPE_FIRMWARE: name = "Firmware"; break; + case IH_TYPE_SCRIPT: name = "Script"; break; + case IH_TYPE_FLATDT: name = "Flat Device Tree"; break; + default: name = "Unknown Image"; break; + } + + return name; +} + +const char* image_get_comp_name (uint8_t comp) +{ + const char *name; + + switch (comp) { + case IH_COMP_NONE: name = "uncompressed"; break; + case IH_COMP_GZIP: name = "gzip compressed"; break; + case IH_COMP_BZIP2: name = "bzip2 compressed"; break; + default: name = "unknown compression"; break; + } + + return name; +} + +static void image_print_type (image_header_t *hdr) +{ + const char *os, *arch, *type, *comp; + + os = image_get_os_name (image_get_os (hdr)); + arch = image_get_arch_name (image_get_arch (hdr)); + type = image_get_type_name (image_get_type (hdr)); + comp = image_get_comp_name (image_get_comp (hdr)); + + printf ("%s %s %s (%s)", arch, os, type, comp); +} + +void image_print_contents (image_header_t *hdr) +{ +#if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) + time_t timestamp = (time_t)image_get_time (hdr); + struct rtc_time tm; +#endif + + printf (" Image Name: %.*s\n", IH_NMLEN, image_get_name (hdr)); + +#if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) + to_tm (timestamp, &tm); + printf (" Created: %4d-%02d-%02d %2d:%02d:%02d UTC\n", + tm.tm_year, tm.tm_mon, tm.tm_mday, + tm.tm_hour, tm.tm_min, tm.tm_sec); +#endif + puts (" Image Type: "); + image_print_type (hdr); + + printf ("\n Data Size: %d Bytes = ", image_get_data_size (hdr)); + print_size (image_get_data_size (hdr), "\n"); + printf (" Load Address: %08x\n" + " Entry Point: %08x\n", + image_get_load (hdr), image_get_ep (hdr)); + + if (image_check_type (hdr, IH_TYPE_MULTI)) { + int i; + ulong data, len; + ulong count = image_multi_count (hdr); + + puts (" Contents:\n"); + for (i = 0; i < count; i++) { + image_multi_getimg (hdr, i, &data, &len); + printf (" Image %d: %8ld Bytes = ", i, len); + print_size (len, "\n"); + } + } +} + +/** + * gen_image_get_format - get image format type + * @img_addr: image start address + * + * gen_image_get_format() checks whether provided address points to a valid + * legacy or FIT image. + * + * New uImage format and FDT blob are based on a libfdt. FDT blob + * may be passed directly or embedded in a FIT image. In both situations + * gen_image_get_format() must be able to dectect libfdt header. + * + * returns: + * image format type or IMAGE_FORMAT_INVALID if no image is present + */ +int gen_image_get_format (void *img_addr) +{ + ulong format = IMAGE_FORMAT_INVALID; + image_header_t *hdr; +#if defined(CONFIG_FIT) || defined(CONFIG_OF_LIBFDT) + char *fit_hdr; +#endif + + hdr = (image_header_t *)img_addr; + if (image_check_magic(hdr)) + format = IMAGE_FORMAT_LEGACY; +#if defined(CONFIG_FIT) || defined(CONFIG_OF_LIBFDT) + else { + fit_hdr = (char *)img_addr; + if (fdt_check_header (fit_hdr) == 0) + format = IMAGE_FORMAT_FIT; + } +#endif + + return format; +} + +/** + * gen_get_image - get image from special storage (if necessary) + * @img_addr: image start address + * + * gen_get_image() checks if provided image start adddress is located + * in a dataflash storage. If so, image is moved to a system RAM memory. + * + * returns: + * image start address after possible relocation from special storage + */ +ulong gen_get_image (ulong img_addr) +{ + ulong ram_addr = img_addr; + +#ifdef CONFIG_HAS_DATAFLASH + ulong h_size, d_size; + + if (addr_dataflash (img_addr)){ + /* ger RAM address */ + ram_addr = CFG_LOAD_ADDR; + + /* get header size */ + h_size = image_get_header_size (); +#if defined(CONFIG_FIT) + if (sizeof(struct fdt_header) > h_size) + h_size = sizeof(struct fdt_header); +#endif + + /* read in header */ + debug (" Reading image header from dataflash address " + "%08lx to RAM address %08lx\n", img_addr, ram_addr); + + read_dataflash (img_addr, h_size, (char *)ram_addr); + + /* get data size */ + switch (gen_image_get_format ((void *)ram_addr)) { + case IMAGE_FORMAT_LEGACY: + d_size = image_get_data_size ((image_header_t *)ram_addr); + debug (" Legacy format image found at 0x%08lx, size 0x%08lx\n", + ram_addr, d_size); + break; +#if defined(CONFIG_FIT) + case IMAGE_FORMAT_FIT: + d_size = fdt_totalsize((void *)ram_addr) - h_size; + debug (" FIT/FDT format image found at 0x%08lx, size 0x%08lx\n", + ram_addr, d_size); + break; +#endif + default: + printf (" No valid image found at 0x%08lx\n", img_addr); + return ram_addr; + } + + /* read in image data */ + debug (" Reading image remaining data from dataflash address " + "%08lx to RAM address %08lx\n", img_addr + h_size, + ram_addr + h_size); + + read_dataflash (img_addr + h_size, d_size, + (char *)(ram_addr + h_size)); + + } +#endif /* CONFIG_HAS_DATAFLASH */ + + return ram_addr; +} + +/** + * image_get_ramdisk - get and verify ramdisk image + * @cmdtp: command table pointer + * @flag: command flag + * @argc: command argument count + * @argv: command argument list + * @rd_addr: ramdisk image start address + * @arch: expected ramdisk architecture + * @verify: checksum verification flag + * + * image_get_ramdisk() returns a pointer to the verified ramdisk image + * header. Routine receives image start address and expected architecture + * flag. Verification done covers data and header integrity and os/type/arch + * fields checking. + * + * If dataflash support is enabled routine checks for dataflash addresses + * and handles required dataflash reads. + * + * returns: + * pointer to a ramdisk image header, if image was found and valid + * otherwise, return NULL + */ +static image_header_t* image_get_ramdisk (cmd_tbl_t *cmdtp, int flag, + int argc, char *argv[], + ulong rd_addr, uint8_t arch, int verify) +{ + image_header_t *rd_hdr; + + show_boot_progress (9); + rd_hdr = (image_header_t *)rd_addr; + + if (!image_check_magic (rd_hdr)) { + puts ("Bad Magic Number\n"); + show_boot_progress (-10); + return NULL; + } + + if (!image_check_hcrc (rd_hdr)) { + puts ("Bad Header Checksum\n"); + show_boot_progress (-11); + return NULL; + } + + show_boot_progress (10); + image_print_contents (rd_hdr); + + if (verify) { + puts(" Verifying Checksum ... "); + if (!image_check_dcrc_wd (rd_hdr, CHUNKSZ)) { + puts ("Bad Data CRC\n"); + show_boot_progress (-12); + return NULL; + } + puts("OK\n"); + } + + show_boot_progress (11); + + if (!image_check_os (rd_hdr, IH_OS_LINUX) || + !image_check_arch (rd_hdr, arch) || + !image_check_type (rd_hdr, IH_TYPE_RAMDISK)) { + printf ("No Linux %s Ramdisk Image\n", + image_get_arch_name(arch)); + show_boot_progress (-13); + return NULL; + } + + return rd_hdr; +} + +/** + * get_ramdisk - main ramdisk handling routine + * @cmdtp: command table pointer + * @flag: command flag + * @argc: command argument count + * @argv: command argument list + * @images: pointer to the bootm images structure + * @arch: expected ramdisk architecture + * @rd_start: pointer to a ulong variable, will hold ramdisk start address + * @rd_end: pointer to a ulong variable, will hold ramdisk end + * + * get_ramdisk() is responsible for finding a valid ramdisk image. + * Curently supported are the following ramdisk sources: + * - multicomponent kernel/ramdisk image, + * - commandline provided address of decicated ramdisk image. + * + * returns: + * rd_start and rd_end are set to ramdisk start/end addresses if + * ramdisk image is found and valid + * rd_start and rd_end are set to 0 if no ramdisk exists + * return 1 if ramdisk image is found but corrupted + */ +int get_ramdisk (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[], + bootm_headers_t *images, uint8_t arch, + ulong *rd_start, ulong *rd_end) +{ + ulong rd_addr, rd_load; + ulong rd_data, rd_len; + image_header_t *rd_hdr; +#if defined(CONFIG_FIT) + void *fit_hdr; + const char *fit_uname_config = NULL; + const char *fit_uname_ramdisk = NULL; + ulong default_addr; +#endif + + /* + * Look for a '-' which indicates to ignore the + * ramdisk argument + */ + if ((argc >= 3) && (strcmp(argv[2], "-") == 0)) { + debug ("## Skipping init Ramdisk\n"); + rd_len = rd_data = 0; + } else if (argc >= 3) { +#if defined(CONFIG_FIT) + /* + * If the init ramdisk comes from the FIT image and the FIT image + * address is omitted in the command line argument, try to use + * os FIT image address or default load address. + */ + if (images->fit_uname_os) + default_addr = (ulong)images->fit_hdr_os; + else + default_addr = load_addr; + + if (fit_parse_conf (argv[2], default_addr, + &rd_addr, &fit_uname_config)) { + debug ("* ramdisk: config '%s' from image at 0x%08lx\n", + fit_uname_config, rd_addr); + } else if (fit_parse_subimage (argv[2], default_addr, + &rd_addr, &fit_uname_ramdisk)) { + debug ("* ramdisk: subimage '%s' from image at 0x%08lx\n", + fit_uname_ramdisk, rd_addr); + } else +#endif + { + rd_addr = simple_strtoul(argv[2], NULL, 16); + debug ("* ramdisk: cmdline image address = 0x%08lx\n", + rd_addr); + } + + /* copy from dataflash if needed */ + printf ("## Loading init Ramdisk Image at %08lx ...\n", + rd_addr); + rd_addr = gen_get_image (rd_addr); + + /* + * Check if there is an initrd image at the + * address provided in the second bootm argument + * check image type, for FIT images get FIT node. + */ + switch (gen_image_get_format ((void *)rd_addr)) { + case IMAGE_FORMAT_LEGACY: + + debug ("* ramdisk: legacy format image\n"); + + rd_hdr = image_get_ramdisk (cmdtp, flag, argc, argv, + rd_addr, arch, images->verify); + + if (rd_hdr == NULL) { + *rd_start = 0; + *rd_end = 0; + return 1; + } + + rd_data = image_get_data (rd_hdr); + rd_len = image_get_data_size (rd_hdr); + rd_load = image_get_load (rd_hdr); + break; +#if defined(CONFIG_FIT) + case IMAGE_FORMAT_FIT: + fit_hdr = (void *)rd_addr; + debug ("* ramdisk: FIT format image\n"); + fit_unsupported_reset ("ramdisk"); + return 1; +#endif + default: + printf ("Wrong Image Format for %s command\n", + cmdtp->name); + rd_data = rd_len = 0; + } + +#if defined(CONFIG_B2) || defined(CONFIG_EVB4510) || defined(CONFIG_ARMADILLO) + /* + * We need to copy the ramdisk to SRAM to let Linux boot + */ + if (rd_data) { + memmove ((void *)rd_load, (uchar *)rd_data, rd_len); + rd_data = rd_load; + } +#endif /* CONFIG_B2 || CONFIG_EVB4510 || CONFIG_ARMADILLO */ + + } else if (images->legacy_hdr_valid && + image_check_type (images->legacy_hdr_os, IH_TYPE_MULTI)) { + /* + * Now check if we have a legacy mult-component image, + * get second entry data start address and len. + */ + show_boot_progress (13); + printf ("## Loading init Ramdisk from multi component " + "Image at %08lx ...\n", + (ulong)images->legacy_hdr_os); + + image_multi_getimg (images->legacy_hdr_os, 1, &rd_data, &rd_len); + } else { + /* + * no initrd image + */ + show_boot_progress (14); + rd_len = rd_data = 0; + } + + if (!rd_data) { + debug ("## No init Ramdisk\n"); + *rd_start = 0; + *rd_end = 0; + } else { + *rd_start = rd_data; + *rd_end = rd_data + rd_len; + } + debug (" ramdisk start = 0x%08lx, ramdisk end = 0x%08lx\n", + *rd_start, *rd_end); + + return 0; +} + +#if defined(CONFIG_PPC) || defined(CONFIG_M68K) +/** + * ramdisk_high - relocate init ramdisk + * @lmb: pointer to lmb handle, will be used for memory mgmt + * @rd_data: ramdisk data start address + * @rd_len: ramdisk data length + * @initrd_start: pointer to a ulong variable, will hold final init ramdisk + * start address (after possible relocation) + * @initrd_end: pointer to a ulong variable, will hold final init ramdisk + * end address (after possible relocation) + * + * ramdisk_high() takes a relocation hint from "initrd_high" environement + * variable and if requested ramdisk data is moved to a specified location. + * + * returns: + * - initrd_start and initrd_end are set to final (after relocation) ramdisk + * start/end addresses if ramdisk image start and len were provided + * otherwise set initrd_start and initrd_end set to zeros + * - returns: + * 0 - success + * -1 - failure + */ +int ramdisk_high (struct lmb *lmb, ulong rd_data, ulong rd_len, + ulong *initrd_start, ulong *initrd_end) +{ + char *s; + ulong initrd_high; + int initrd_copy_to_ram = 1; + + if ((s = getenv ("initrd_high")) != NULL) { + /* a value of "no" or a similar string will act like 0, + * turning the "load high" feature off. This is intentional. + */ + initrd_high = simple_strtoul (s, NULL, 16); + if (initrd_high == ~0) + initrd_copy_to_ram = 0; + } else { + /* not set, no restrictions to load high */ + initrd_high = ~0; + } + + debug ("## initrd_high = 0x%08lx, copy_to_ram = %d\n", + initrd_high, initrd_copy_to_ram); + + if (rd_data) { + if (!initrd_copy_to_ram) { /* zero-copy ramdisk support */ + debug (" in-place initrd\n"); + *initrd_start = rd_data; + *initrd_end = rd_data + rd_len; + lmb_reserve(lmb, rd_data, rd_len); + } else { + if (initrd_high) + *initrd_start = lmb_alloc_base(lmb, rd_len, 0x1000, initrd_high); + else + *initrd_start = lmb_alloc(lmb, rd_len, 0x1000); + + if (*initrd_start == 0) { + puts("ramdisk - allocation error\n"); + goto error; + } + show_boot_progress (12); + + *initrd_end = *initrd_start + rd_len; + printf (" Loading Ramdisk to %08lx, end %08lx ... ", + *initrd_start, *initrd_end); + + memmove_wd((void *)*initrd_start, + (void *)rd_data, rd_len, CHUNKSZ); + + puts ("OK\n"); + } + } else { + *initrd_start = 0; + *initrd_end = 0; + } + debug (" ramdisk load start = 0x%08lx, ramdisk load end = 0x%08lx\n", + *initrd_start, *initrd_end); + return 0; + +error: + return -1; +} + +/** + * get_boot_cmdline - allocate and initialize kernel cmdline + * @lmb: pointer to lmb handle, will be used for memory mgmt + * @cmd_start: pointer to a ulong variable, will hold cmdline start + * @cmd_end: pointer to a ulong variable, will hold cmdline end + * @bootmap_base: ulong variable, holds offset in physical memory to + * base of bootmap + * + * get_boot_cmdline() allocates space for kernel command line below + * BOOTMAPSZ + bootmap_base address. If "bootargs" U-boot environemnt + * variable is present its contents is copied to allocated kernel + * command line. + * + * returns: + * 0 - success + * -1 - failure + */ +int get_boot_cmdline (struct lmb *lmb, ulong *cmd_start, ulong *cmd_end, + ulong bootmap_base) +{ + char *cmdline; + char *s; + + cmdline = (char *)lmb_alloc_base(lmb, CFG_BARGSIZE, 0xf, + CFG_BOOTMAPSZ + bootmap_base); + + if (cmdline == NULL) + return -1; + + if ((s = getenv("bootargs")) == NULL) + s = ""; + + strcpy(cmdline, s); + + *cmd_start = (ulong) & cmdline[0]; + *cmd_end = *cmd_start + strlen(cmdline); + + debug ("## cmdline at 0x%08lx ... 0x%08lx\n", *cmd_start, *cmd_end); + + return 0; +} + +/** + * get_boot_kbd - allocate and initialize kernel copy of board info + * @lmb: pointer to lmb handle, will be used for memory mgmt + * @kbd: double pointer to board info data + * @bootmap_base: ulong variable, holds offset in physical memory to + * base of bootmap + * + * get_boot_kbd() allocates space for kernel copy of board info data below + * BOOTMAPSZ + bootmap_base address and kernel board info is initialized with + * the current u-boot board info data. + * + * returns: + * 0 - success + * -1 - failure + */ +int get_boot_kbd (struct lmb *lmb, bd_t **kbd, ulong bootmap_base) +{ + *kbd = (bd_t *)lmb_alloc_base(lmb, sizeof(bd_t), 0xf, + CFG_BOOTMAPSZ + bootmap_base); + if (*kbd == NULL) + return -1; + + **kbd = *(gd->bd); + + debug ("## kernel board info at 0x%08lx\n", (ulong)*kbd); + +#if defined(DEBUG) && defined(CONFIG_CMD_BDI) + do_bdinfo(NULL, 0, 0, NULL); +#endif + + return 0; +} +#endif /* CONFIG_PPC || CONFIG_M68K */ + +#if defined(CONFIG_FIT) +/*****************************************************************************/ +/* New uImage format routines */ +/*****************************************************************************/ +static int fit_parse_spec (const char *spec, char sepc, ulong addr_curr, + ulong *addr, const char **name) +{ + const char *sep; + + *addr = addr_curr; + *name = NULL; + + sep = strchr (spec, sepc); + if (sep) { + if (sep - spec > 0) + *addr = simple_strtoul (spec, NULL, 16); + + *name = sep + 1; + return 1; + } + + return 0; +} + +/** + * fit_parse_conf - parse FIT configuration spec + * @spec: input string, containing configuration spec + * @add_curr: current image address (to be used as a possible default) + * @addr: pointer to a ulong variable, will hold FIT image address of a given + * configuration + * @conf_name double pointer to a char, will hold pointer to a configuration + * unit name + * + * fit_parse_conf() expects configuration spec in the for of [<addr>]#<conf>, + * where <addr> is a FIT image address that contains configuration + * with a <conf> unit name. + * + * Address part is optional, and if omitted default add_curr will + * be used instead. + * + * returns: + * 1 if spec is a valid configuration string, + * addr and conf_name are set accordingly + * 0 otherwise + */ +inline int fit_parse_conf (const char *spec, ulong addr_curr, + ulong *addr, const char **conf_name) +{ + return fit_parse_spec (spec, '#', addr_curr, addr, conf_name); +} + +/** + * fit_parse_subimage - parse FIT subimage spec + * @spec: input string, containing subimage spec + * @add_curr: current image address (to be used as a possible default) + * @addr: pointer to a ulong variable, will hold FIT image address of a given + * subimage + * @image_name: double pointer to a char, will hold pointer to a subimage name + * + * fit_parse_subimage() expects subimage spec in the for of + * [<addr>]:<subimage>, where <addr> is a FIT image address that contains + * subimage with a <subimg> unit name. + * + * Address part is optional, and if omitted default add_curr will + * be used instead. + * + * returns: + * 1 if spec is a valid subimage string, + * addr and image_name are set accordingly + * 0 otherwise + */ +inline int fit_parse_subimage (const char *spec, ulong addr_curr, + ulong *addr, const char **image_name) +{ + return fit_parse_spec (spec, ':', addr_curr, addr, image_name); +} + +#endif /* CONFIG_FIT */ + +#endif /* USE_HOSTCC */ |