diff options
Diffstat (limited to 'common/image-board.c')
| -rw-r--r-- | common/image-board.c | 925 |
1 files changed, 925 insertions, 0 deletions
diff --git a/common/image-board.c b/common/image-board.c new file mode 100644 index 0000000000..63cbf5f901 --- /dev/null +++ b/common/image-board.c @@ -0,0 +1,925 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Image code used by boards (and not host tools) + * + * (C) Copyright 2008 Semihalf + * + * (C) Copyright 2000-2006 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + */ + +#include <common.h> +#include <bootstage.h> +#include <cpu_func.h> +#include <env.h> +#include <fpga.h> +#include <image.h> +#include <mapmem.h> +#include <watchdog.h> +#include <asm/cache.h> +#include <asm/global_data.h> + +#ifndef CONFIG_SYS_BARGSIZE +#define CONFIG_SYS_BARGSIZE 512 +#endif + +DECLARE_GLOBAL_DATA_PTR; + +#if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT) +/** + * image_get_ramdisk - get and verify ramdisk image + * @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. + * + * returns: + * pointer to a ramdisk image header, if image was found and valid + * otherwise, return NULL + */ +static const image_header_t *image_get_ramdisk(ulong rd_addr, uint8_t arch, + int verify) +{ + const image_header_t *rd_hdr = (const image_header_t *)rd_addr; + + if (!image_check_magic(rd_hdr)) { + puts("Bad Magic Number\n"); + bootstage_error(BOOTSTAGE_ID_RD_MAGIC); + return NULL; + } + + if (!image_check_hcrc(rd_hdr)) { + puts("Bad Header Checksum\n"); + bootstage_error(BOOTSTAGE_ID_RD_HDR_CHECKSUM); + return NULL; + } + + bootstage_mark(BOOTSTAGE_ID_RD_MAGIC); + image_print_contents(rd_hdr); + + if (verify) { + puts(" Verifying Checksum ... "); + if (!image_check_dcrc(rd_hdr)) { + puts("Bad Data CRC\n"); + bootstage_error(BOOTSTAGE_ID_RD_CHECKSUM); + return NULL; + } + puts("OK\n"); + } + + bootstage_mark(BOOTSTAGE_ID_RD_HDR_CHECKSUM); + + 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", + genimg_get_arch_name(arch)); + bootstage_error(BOOTSTAGE_ID_RAMDISK); + return NULL; + } + + return rd_hdr; +} +#endif + +/*****************************************************************************/ +/* Shared dual-format routines */ +/*****************************************************************************/ +ulong image_load_addr = CONFIG_SYS_LOAD_ADDR; /* Default Load Address */ +ulong image_save_addr; /* Default Save Address */ +ulong image_save_size; /* Default Save Size (in bytes) */ + +static int on_loadaddr(const char *name, const char *value, enum env_op op, + int flags) +{ + switch (op) { + case env_op_create: + case env_op_overwrite: + image_load_addr = hextoul(value, NULL); + break; + default: + break; + } + + return 0; +} +U_BOOT_ENV_CALLBACK(loadaddr, on_loadaddr); + +ulong env_get_bootm_low(void) +{ + char *s = env_get("bootm_low"); + if (s) { + ulong tmp = hextoul(s, NULL); + return tmp; + } + +#if defined(CONFIG_SYS_SDRAM_BASE) + return CONFIG_SYS_SDRAM_BASE; +#elif defined(CONFIG_ARM) || defined(CONFIG_MICROBLAZE) || defined(CONFIG_RISCV) + return gd->bd->bi_dram[0].start; +#else + return 0; +#endif +} + +phys_size_t env_get_bootm_size(void) +{ + phys_size_t tmp, size; + phys_addr_t start; + char *s = env_get("bootm_size"); + if (s) { + tmp = (phys_size_t)simple_strtoull(s, NULL, 16); + return tmp; + } + + start = gd->ram_base; + size = gd->ram_size; + + if (start + size > gd->ram_top) + size = gd->ram_top - start; + + s = env_get("bootm_low"); + if (s) + tmp = (phys_size_t)simple_strtoull(s, NULL, 16); + else + tmp = start; + + return size - (tmp - start); +} + +phys_size_t env_get_bootm_mapsize(void) +{ + phys_size_t tmp; + char *s = env_get("bootm_mapsize"); + if (s) { + tmp = (phys_size_t)simple_strtoull(s, NULL, 16); + return tmp; + } + +#if defined(CONFIG_SYS_BOOTMAPSZ) + return CONFIG_SYS_BOOTMAPSZ; +#else + return env_get_bootm_size(); +#endif +} + +void memmove_wd(void *to, void *from, size_t len, ulong chunksz) +{ + if (to == from) + return; + +#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG) + if (to > from) { + from += len; + to += len; + } + while (len > 0) { + size_t tail = (len > chunksz) ? chunksz : len; + WATCHDOG_RESET(); + if (to > from) { + to -= tail; + from -= tail; + } + memmove(to, from, tail); + if (to < from) { + to += tail; + from += tail; + } + len -= tail; + } +#else /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */ + memmove(to, from, len); +#endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */ +} + +/** + * genimg_get_kernel_addr_fit - get the real kernel address and return 2 + * FIT strings + * @img_addr: a string might contain real image address + * @fit_uname_config: double pointer to a char, will hold pointer to a + * configuration unit name + * @fit_uname_kernel: double pointer to a char, will hold pointer to a subimage + * name + * + * genimg_get_kernel_addr_fit get the real kernel start address from a string + * which is normally the first argv of bootm/bootz + * + * returns: + * kernel start address + */ +ulong genimg_get_kernel_addr_fit(char * const img_addr, + const char **fit_uname_config, + const char **fit_uname_kernel) +{ + ulong kernel_addr; + + /* find out kernel image address */ + if (!img_addr) { + kernel_addr = image_load_addr; + debug("* kernel: default image load address = 0x%08lx\n", + image_load_addr); +#if CONFIG_IS_ENABLED(FIT) + } else if (fit_parse_conf(img_addr, image_load_addr, &kernel_addr, + fit_uname_config)) { + debug("* kernel: config '%s' from image at 0x%08lx\n", + *fit_uname_config, kernel_addr); + } else if (fit_parse_subimage(img_addr, image_load_addr, &kernel_addr, + fit_uname_kernel)) { + debug("* kernel: subimage '%s' from image at 0x%08lx\n", + *fit_uname_kernel, kernel_addr); +#endif + } else { + kernel_addr = hextoul(img_addr, NULL); + debug("* kernel: cmdline image address = 0x%08lx\n", + kernel_addr); + } + + return kernel_addr; +} + +/** + * genimg_get_kernel_addr() is the simple version of + * genimg_get_kernel_addr_fit(). It ignores those return FIT strings + */ +ulong genimg_get_kernel_addr(char * const img_addr) +{ + const char *fit_uname_config = NULL; + const char *fit_uname_kernel = NULL; + + return genimg_get_kernel_addr_fit(img_addr, &fit_uname_config, + &fit_uname_kernel); +} + +/** + * genimg_get_format - get image format type + * @img_addr: image start address + * + * genimg_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 + * genimg_get_format() must be able to dectect libfdt header. + * + * returns: + * image format type or IMAGE_FORMAT_INVALID if no image is present + */ +int genimg_get_format(const void *img_addr) +{ +#if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT) + const image_header_t *hdr; + + hdr = (const image_header_t *)img_addr; + if (image_check_magic(hdr)) + return IMAGE_FORMAT_LEGACY; +#endif +#if IMAGE_ENABLE_FIT || IMAGE_ENABLE_OF_LIBFDT + if (fdt_check_header(img_addr) == 0) + return IMAGE_FORMAT_FIT; +#endif +#ifdef CONFIG_ANDROID_BOOT_IMAGE + if (android_image_check_header(img_addr) == 0) + return IMAGE_FORMAT_ANDROID; +#endif + + return IMAGE_FORMAT_INVALID; +} + +/** + * fit_has_config - check if there is a valid FIT configuration + * @images: pointer to the bootm command headers structure + * + * fit_has_config() checks if there is a FIT configuration in use + * (if FTI support is present). + * + * returns: + * 0, no FIT support or no configuration found + * 1, configuration found + */ +int genimg_has_config(bootm_headers_t *images) +{ +#if IMAGE_ENABLE_FIT + if (images->fit_uname_cfg) + return 1; +#endif + return 0; +} + +/** + * boot_get_ramdisk - main ramdisk handling routine + * @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 + * + * boot_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: + * 0, if ramdisk image was found and valid, or skiped + * rd_start and rd_end are set to ramdisk start/end addresses if + * ramdisk image is found and valid + * + * 1, if ramdisk image is found but corrupted, or invalid + * rd_start and rd_end are set to 0 if no ramdisk exists + */ +int boot_get_ramdisk(int argc, char *const argv[], bootm_headers_t *images, + uint8_t arch, ulong *rd_start, ulong *rd_end) +{ + ulong rd_addr, rd_load; + ulong rd_data, rd_len; +#if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT) + const image_header_t *rd_hdr; +#endif + void *buf; +#ifdef CONFIG_SUPPORT_RAW_INITRD + char *end; +#endif +#if IMAGE_ENABLE_FIT + const char *fit_uname_config = images->fit_uname_cfg; + const char *fit_uname_ramdisk = NULL; + ulong default_addr; + int rd_noffset; +#endif + const char *select = NULL; + + *rd_start = 0; + *rd_end = 0; + +#ifdef CONFIG_ANDROID_BOOT_IMAGE + /* + * Look for an Android boot image. + */ + buf = map_sysmem(images->os.start, 0); + if (buf && genimg_get_format(buf) == IMAGE_FORMAT_ANDROID) + select = (argc == 0) ? env_get("loadaddr") : argv[0]; +#endif + + if (argc >= 2) + select = argv[1]; + + /* + * Look for a '-' which indicates to ignore the + * ramdisk argument + */ + if (select && strcmp(select, "-") == 0) { + debug("## Skipping init Ramdisk\n"); + rd_len = rd_data = 0; + } else if (select || genimg_has_config(images)) { +#if IMAGE_ENABLE_FIT + if (select) { + /* + * 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 = image_load_addr; + + if (fit_parse_conf(select, 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(select, 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 = hextoul(select, NULL); + debug("* ramdisk: cmdline image address = " + "0x%08lx\n", + rd_addr); + } +#if IMAGE_ENABLE_FIT + } else { + /* use FIT configuration provided in first bootm + * command argument. If the property is not defined, + * quit silently. + */ + rd_addr = map_to_sysmem(images->fit_hdr_os); + rd_noffset = fit_get_node_from_config(images, + FIT_RAMDISK_PROP, rd_addr); + if (rd_noffset == -ENOENT) + return 0; + else if (rd_noffset < 0) + return 1; + } +#endif + + /* + * 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. + */ + buf = map_sysmem(rd_addr, 0); + switch (genimg_get_format(buf)) { +#if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT) + case IMAGE_FORMAT_LEGACY: + printf("## Loading init Ramdisk from Legacy " + "Image at %08lx ...\n", rd_addr); + + bootstage_mark(BOOTSTAGE_ID_CHECK_RAMDISK); + rd_hdr = image_get_ramdisk(rd_addr, arch, + images->verify); + + if (rd_hdr == NULL) + 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; +#endif +#if IMAGE_ENABLE_FIT + case IMAGE_FORMAT_FIT: + rd_noffset = fit_image_load(images, + rd_addr, &fit_uname_ramdisk, + &fit_uname_config, arch, + IH_TYPE_RAMDISK, + BOOTSTAGE_ID_FIT_RD_START, + FIT_LOAD_OPTIONAL_NON_ZERO, + &rd_data, &rd_len); + if (rd_noffset < 0) + return 1; + + images->fit_hdr_rd = map_sysmem(rd_addr, 0); + images->fit_uname_rd = fit_uname_ramdisk; + images->fit_noffset_rd = rd_noffset; + break; +#endif +#ifdef CONFIG_ANDROID_BOOT_IMAGE + case IMAGE_FORMAT_ANDROID: + android_image_get_ramdisk((void *)images->os.start, + &rd_data, &rd_len); + break; +#endif + default: +#ifdef CONFIG_SUPPORT_RAW_INITRD + end = NULL; + if (select) + end = strchr(select, ':'); + if (end) { + rd_len = hextoul(++end, NULL); + rd_data = rd_addr; + } else +#endif + { + puts("Wrong Ramdisk Image Format\n"); + rd_data = rd_len = rd_load = 0; + return 1; + } + } + } else if (images->legacy_hdr_valid && + image_check_type(&images->legacy_hdr_os_copy, + IH_TYPE_MULTI)) { + + /* + * Now check if we have a legacy mult-component image, + * get second entry data start address and len. + */ + bootstage_mark(BOOTSTAGE_ID_RAMDISK); + printf("## Loading init Ramdisk from multi component " + "Legacy 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 + */ + bootstage_mark(BOOTSTAGE_ID_NO_RAMDISK); + rd_len = rd_data = 0; + } + + if (!rd_data) { + debug("## No init Ramdisk\n"); + } 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; +} + +#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH +/** + * boot_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) + * + * boot_ramdisk_high() takes a relocation hint from "initrd_high" environment + * variable and if requested ramdisk data is moved to a specified location. + * + * 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 boot_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; + + s = env_get("initrd_high"); + if (s) { + /* a value of "no" or a similar string will act like 0, + * turning the "load high" feature off. This is intentional. + */ + initrd_high = hextoul(s, NULL); + if (initrd_high == ~0) + initrd_copy_to_ram = 0; + } else { + initrd_high = env_get_bootm_mapsize() + env_get_bootm_low(); + } + + + 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 = (ulong)lmb_alloc_base(lmb, + rd_len, 0x1000, initrd_high); + else + *initrd_start = (ulong)lmb_alloc(lmb, rd_len, + 0x1000); + + if (*initrd_start == 0) { + puts("ramdisk - allocation error\n"); + goto error; + } + bootstage_mark(BOOTSTAGE_ID_COPY_RAMDISK); + + *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); + +#ifdef CONFIG_MP + /* + * Ensure the image is flushed to memory to handle + * AMP boot scenarios in which we might not be + * HW cache coherent + */ + flush_cache((unsigned long)*initrd_start, + ALIGN(rd_len, ARCH_DMA_MINALIGN)); +#endif + 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; +} +#endif /* CONFIG_SYS_BOOT_RAMDISK_HIGH */ + +int boot_get_setup(bootm_headers_t *images, uint8_t arch, + ulong *setup_start, ulong *setup_len) +{ +#if IMAGE_ENABLE_FIT + return boot_get_setup_fit(images, arch, setup_start, setup_len); +#else + return -ENOENT; +#endif +} + +#if IMAGE_ENABLE_FIT +#if defined(CONFIG_FPGA) +int boot_get_fpga(int argc, char *const argv[], bootm_headers_t *images, + uint8_t arch, const ulong *ld_start, ulong * const ld_len) +{ + ulong tmp_img_addr, img_data, img_len; + void *buf; + int conf_noffset; + int fit_img_result; + const char *uname, *name; + int err; + int devnum = 0; /* TODO support multi fpga platforms */ + + /* Check to see if the images struct has a FIT configuration */ + if (!genimg_has_config(images)) { + debug("## FIT configuration was not specified\n"); + return 0; + } + + /* + * Obtain the os FIT header from the images struct + */ + tmp_img_addr = map_to_sysmem(images->fit_hdr_os); + buf = map_sysmem(tmp_img_addr, 0); + /* + * Check image type. For FIT images get FIT node + * and attempt to locate a generic binary. + */ + switch (genimg_get_format(buf)) { + case IMAGE_FORMAT_FIT: + conf_noffset = fit_conf_get_node(buf, images->fit_uname_cfg); + + uname = fdt_stringlist_get(buf, conf_noffset, FIT_FPGA_PROP, 0, + NULL); + if (!uname) { + debug("## FPGA image is not specified\n"); + return 0; + } + fit_img_result = fit_image_load(images, + tmp_img_addr, + (const char **)&uname, + &(images->fit_uname_cfg), + arch, + IH_TYPE_FPGA, + BOOTSTAGE_ID_FPGA_INIT, + FIT_LOAD_OPTIONAL_NON_ZERO, + &img_data, &img_len); + + debug("FPGA image (%s) loaded to 0x%lx/size 0x%lx\n", + uname, img_data, img_len); + + if (fit_img_result < 0) { + /* Something went wrong! */ + return fit_img_result; + } + + if (!fpga_is_partial_data(devnum, img_len)) { + name = "full"; + err = fpga_loadbitstream(devnum, (char *)img_data, + img_len, BIT_FULL); + if (err) + err = fpga_load(devnum, (const void *)img_data, + img_len, BIT_FULL); + } else { + name = "partial"; + err = fpga_loadbitstream(devnum, (char *)img_data, + img_len, BIT_PARTIAL); + if (err) + err = fpga_load(devnum, (const void *)img_data, + img_len, BIT_PARTIAL); + } + + if (err) + return err; + + printf(" Programming %s bitstream... OK\n", name); + break; + default: + printf("The given image format is not supported (corrupt?)\n"); + return 1; + } + + return 0; +} +#endif + +static void fit_loadable_process(uint8_t img_type, + ulong img_data, + ulong img_len) +{ + int i; + const unsigned int count = + ll_entry_count(struct fit_loadable_tbl, fit_loadable); + struct fit_loadable_tbl *fit_loadable_handler = + ll_entry_start(struct fit_loadable_tbl, fit_loadable); + /* For each loadable handler */ + for (i = 0; i < count; i++, fit_loadable_handler++) + /* matching this type */ + if (fit_loadable_handler->type == img_type) + /* call that handler with this image data */ + fit_loadable_handler->handler(img_data, img_len); +} + +int boot_get_loadable(int argc, char *const argv[], bootm_headers_t *images, + uint8_t arch, const ulong *ld_start, ulong * const ld_len) +{ + /* + * These variables are used to hold the current image location + * in system memory. + */ + ulong tmp_img_addr; + /* + * These two variables are requirements for fit_image_load, but + * their values are not used + */ + ulong img_data, img_len; + void *buf; + int loadables_index; + int conf_noffset; + int fit_img_result; + const char *uname; + uint8_t img_type; + + /* Check to see if the images struct has a FIT configuration */ + if (!genimg_has_config(images)) { + debug("## FIT configuration was not specified\n"); + return 0; + } + + /* + * Obtain the os FIT header from the images struct + */ + tmp_img_addr = map_to_sysmem(images->fit_hdr_os); + buf = map_sysmem(tmp_img_addr, 0); + /* + * Check image type. For FIT images get FIT node + * and attempt to locate a generic binary. + */ + switch (genimg_get_format(buf)) { + case IMAGE_FORMAT_FIT: + conf_noffset = fit_conf_get_node(buf, images->fit_uname_cfg); + + for (loadables_index = 0; + uname = fdt_stringlist_get(buf, conf_noffset, + FIT_LOADABLE_PROP, loadables_index, + NULL), uname; + loadables_index++) + { + fit_img_result = fit_image_load(images, + tmp_img_addr, + &uname, + &(images->fit_uname_cfg), arch, + IH_TYPE_LOADABLE, + BOOTSTAGE_ID_FIT_LOADABLE_START, + FIT_LOAD_OPTIONAL_NON_ZERO, + &img_data, &img_len); + if (fit_img_result < 0) { + /* Something went wrong! */ + return fit_img_result; + } + + fit_img_result = fit_image_get_node(buf, uname); + if (fit_img_result < 0) { + /* Something went wrong! */ + return fit_img_result; + } + fit_img_result = fit_image_get_type(buf, + fit_img_result, + &img_type); + if (fit_img_result < 0) { + /* Something went wrong! */ + return fit_img_result; + } + + fit_loadable_process(img_type, img_data, img_len); + } + break; + default: + printf("The given image format is not supported (corrupt?)\n"); + return 1; + } + + return 0; +} +#endif + +#ifdef CONFIG_SYS_BOOT_GET_CMDLINE +/** + * boot_get_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 + * + * boot_get_cmdline() allocates space for kernel command line below + * BOOTMAPSZ + env_get_bootm_low() address. If "bootargs" U-Boot environment + * variable is present its contents is copied to allocated kernel + * command line. + * + * returns: + * 0 - success + * -1 - failure + */ +int boot_get_cmdline(struct lmb *lmb, ulong *cmd_start, ulong *cmd_end) +{ + char *cmdline; + char *s; + + cmdline = (char *)(ulong)lmb_alloc_base(lmb, CONFIG_SYS_BARGSIZE, 0xf, + env_get_bootm_mapsize() + env_get_bootm_low()); + + if (cmdline == NULL) + return -1; + + s = env_get("bootargs"); + if (!s) + 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; +} +#endif /* CONFIG_SYS_BOOT_GET_CMDLINE */ + +#ifdef CONFIG_SYS_BOOT_GET_KBD +/** + * boot_get_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 + * + * boot_get_kbd() allocates space for kernel copy of board info data below + * BOOTMAPSZ + env_get_bootm_low() address and kernel board info is initialized + * with the current u-boot board info data. + * + * returns: + * 0 - success + * -1 - failure + */ +int boot_get_kbd(struct lmb *lmb, struct bd_info **kbd) +{ + *kbd = (struct bd_info *)(ulong)lmb_alloc_base(lmb, + sizeof(struct bd_info), + 0xf, + env_get_bootm_mapsize() + env_get_bootm_low()); + 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_SYS_BOOT_GET_KBD */ + +#ifdef CONFIG_LMB +int image_setup_linux(bootm_headers_t *images) +{ + ulong of_size = images->ft_len; + char **of_flat_tree = &images->ft_addr; + struct lmb *lmb = &images->lmb; + int ret; + + if (IMAGE_ENABLE_OF_LIBFDT) + boot_fdt_add_mem_rsv_regions(lmb, *of_flat_tree); + + if (IMAGE_BOOT_GET_CMDLINE) { + ret = boot_get_cmdline(lmb, &images->cmdline_start, + &images->cmdline_end); + if (ret) { + puts("ERROR with allocation of cmdline\n"); + return ret; + } + } + + if (IMAGE_ENABLE_OF_LIBFDT) { + ret = boot_relocate_fdt(lmb, of_flat_tree, &of_size); + if (ret) + return ret; + } + + if (IMAGE_ENABLE_OF_LIBFDT && of_size) { + ret = image_setup_libfdt(images, *of_flat_tree, of_size, lmb); + if (ret) + return ret; + } + + return 0; +} +#endif /* CONFIG_LMB */ |