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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * Copyright (c) 2011 Sebastian Andrzej Siewior <bigeasy@linutronix.de>
- */
- #include <common.h>
- #include <env.h>
- #include <image.h>
- #include <image-android-dt.h>
- #include <android_image.h>
- #include <malloc.h>
- #include <errno.h>
- #include <asm/unaligned.h>
- #include <mapmem.h>
- #include <linux/libfdt.h>
- #define ANDROID_IMAGE_DEFAULT_KERNEL_ADDR 0x10008000
- static char andr_tmp_str[ANDR_BOOT_ARGS_SIZE + 1];
- static ulong checksum(const unsigned char *buffer, ulong size)
- {
- ulong sum = 0;
- for (ulong i = 0; i < size; i++)
- sum += buffer[i];
- return sum;
- }
- static bool is_trailer_present(ulong bootconfig_end_addr)
- {
- return !strncmp((char *)(bootconfig_end_addr - BOOTCONFIG_MAGIC_SIZE),
- BOOTCONFIG_MAGIC, BOOTCONFIG_MAGIC_SIZE);
- }
- static ulong add_trailer(ulong bootconfig_start_addr, ulong bootconfig_size)
- {
- ulong end;
- ulong sum;
- if (!bootconfig_start_addr)
- return -1;
- if (!bootconfig_size)
- return 0;
- end = bootconfig_start_addr + bootconfig_size;
- if (is_trailer_present(end))
- return 0;
- memcpy((void *)(end), &bootconfig_size, BOOTCONFIG_SIZE_SIZE);
- sum = checksum((unsigned char *)bootconfig_start_addr, bootconfig_size);
- memcpy((void *)(end + BOOTCONFIG_SIZE_SIZE), &sum,
- BOOTCONFIG_CHECKSUM_SIZE);
- memcpy((void *)(end + BOOTCONFIG_SIZE_SIZE + BOOTCONFIG_CHECKSUM_SIZE),
- BOOTCONFIG_MAGIC, BOOTCONFIG_MAGIC_SIZE);
- return BOOTCONFIG_TRAILER_SIZE;
- }
- static void android_boot_image_v3_v4_parse_hdr(const struct andr_boot_img_hdr_v3 *hdr,
- struct andr_image_data *data)
- {
- ulong end;
- data->kcmdline = hdr->cmdline;
- data->header_version = hdr->header_version;
- data->ramdisk_ptr = env_get_ulong("ramdisk_addr_r", 16, 0);
- /*
- * The header takes a full page, the remaining components are aligned
- * on page boundary.
- */
- end = (ulong)hdr;
- end += ANDR_GKI_PAGE_SIZE;
- data->kernel_ptr = end;
- data->kernel_size = hdr->kernel_size;
- end += ALIGN(hdr->kernel_size, ANDR_GKI_PAGE_SIZE);
- data->ramdisk_size = hdr->ramdisk_size;
- data->boot_ramdisk_size = hdr->ramdisk_size;
- end += ALIGN(hdr->ramdisk_size, ANDR_GKI_PAGE_SIZE);
- if (hdr->header_version > 3)
- end += ALIGN(hdr->signature_size, ANDR_GKI_PAGE_SIZE);
- data->boot_img_total_size = end - (ulong)hdr;
- }
- static void android_vendor_boot_image_v3_v4_parse_hdr(const struct andr_vnd_boot_img_hdr
- *hdr, struct andr_image_data *data)
- {
- ulong end;
- /*
- * The header takes a full page, the remaining components are aligned
- * on page boundary.
- */
- data->kcmdline_extra = hdr->cmdline;
- data->tags_addr = hdr->tags_addr;
- data->image_name = hdr->name;
- data->kernel_addr = hdr->kernel_addr;
- data->ramdisk_addr = hdr->ramdisk_addr;
- data->dtb_load_addr = hdr->dtb_addr;
- data->bootconfig_size = hdr->bootconfig_size;
- end = (ulong)hdr;
- end += hdr->page_size;
- if (hdr->vendor_ramdisk_size) {
- data->vendor_ramdisk_ptr = end;
- data->vendor_ramdisk_size = hdr->vendor_ramdisk_size;
- data->ramdisk_size += hdr->vendor_ramdisk_size;
- end += ALIGN(hdr->vendor_ramdisk_size, hdr->page_size);
- }
- data->dtb_ptr = end;
- data->dtb_size = hdr->dtb_size;
- end += ALIGN(hdr->dtb_size, hdr->page_size);
- end += ALIGN(hdr->vendor_ramdisk_table_size, hdr->page_size);
- data->bootconfig_addr = end;
- if (hdr->bootconfig_size) {
- data->bootconfig_size += add_trailer(data->bootconfig_addr,
- data->bootconfig_size);
- data->ramdisk_size += data->bootconfig_size;
- }
- end += ALIGN(data->bootconfig_size, hdr->page_size);
- data->vendor_boot_img_total_size = end - (ulong)hdr;
- }
- static void android_boot_image_v0_v1_v2_parse_hdr(const struct andr_boot_img_hdr_v0 *hdr,
- struct andr_image_data *data)
- {
- ulong end;
- data->image_name = hdr->name;
- data->kcmdline = hdr->cmdline;
- data->kernel_addr = hdr->kernel_addr;
- data->ramdisk_addr = hdr->ramdisk_addr;
- data->header_version = hdr->header_version;
- data->dtb_load_addr = hdr->dtb_addr;
- end = (ulong)hdr;
- /*
- * The header takes a full page, the remaining components are aligned
- * on page boundary
- */
- end += hdr->page_size;
- data->kernel_ptr = end;
- data->kernel_size = hdr->kernel_size;
- end += ALIGN(hdr->kernel_size, hdr->page_size);
- data->ramdisk_ptr = end;
- data->ramdisk_size = hdr->ramdisk_size;
- end += ALIGN(hdr->ramdisk_size, hdr->page_size);
- data->second_ptr = end;
- data->second_size = hdr->second_size;
- end += ALIGN(hdr->second_size, hdr->page_size);
- if (hdr->header_version >= 1) {
- data->recovery_dtbo_ptr = end;
- data->recovery_dtbo_size = hdr->recovery_dtbo_size;
- end += ALIGN(hdr->recovery_dtbo_size, hdr->page_size);
- }
- if (hdr->header_version >= 2) {
- data->dtb_ptr = end;
- data->dtb_size = hdr->dtb_size;
- end += ALIGN(hdr->dtb_size, hdr->page_size);
- }
- data->boot_img_total_size = end - (ulong)hdr;
- }
- bool android_image_get_data(const void *boot_hdr, const void *vendor_boot_hdr,
- struct andr_image_data *data)
- {
- if (!boot_hdr || !data) {
- printf("boot_hdr or data params can't be NULL\n");
- return false;
- }
- if (!is_android_boot_image_header(boot_hdr)) {
- printf("Incorrect boot image header\n");
- return false;
- }
- if (((struct andr_boot_img_hdr_v0 *)boot_hdr)->header_version > 2) {
- if (!vendor_boot_hdr) {
- printf("For boot header v3+ vendor boot image has to be provided\n");
- return false;
- }
- if (!is_android_vendor_boot_image_header(vendor_boot_hdr)) {
- printf("Incorrect vendor boot image header\n");
- return false;
- }
- android_boot_image_v3_v4_parse_hdr(boot_hdr, data);
- android_vendor_boot_image_v3_v4_parse_hdr(vendor_boot_hdr, data);
- } else {
- android_boot_image_v0_v1_v2_parse_hdr(boot_hdr, data);
- }
- return true;
- }
- static ulong android_image_get_kernel_addr(struct andr_image_data *img_data)
- {
- /*
- * All the Android tools that generate a boot.img use this
- * address as the default.
- *
- * Even though it doesn't really make a lot of sense, and it
- * might be valid on some platforms, we treat that adress as
- * the default value for this field, and try to execute the
- * kernel in place in such a case.
- *
- * Otherwise, we will return the actual value set by the user.
- */
- if (img_data->kernel_addr == ANDROID_IMAGE_DEFAULT_KERNEL_ADDR)
- return img_data->kernel_ptr;
- /*
- * abootimg creates images where all load addresses are 0
- * and we need to fix them.
- */
- if (img_data->kernel_addr == 0 && img_data->ramdisk_addr == 0)
- return env_get_ulong("kernel_addr_r", 16, 0);
- return img_data->kernel_addr;
- }
- /**
- * android_image_get_kernel() - processes kernel part of Android boot images
- * @hdr: Pointer to boot image header, which is at the start
- * of the image.
- * @vendor_boot_img: Pointer to vendor boot image header, which is at the
- * start of the image.
- * @verify: Checksum verification flag. Currently unimplemented.
- * @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.
- *
- * This function returns the os image's start address and length. Also,
- * it appends the kernel command line to the bootargs env variable.
- *
- * Return: Zero, os start address and length on success,
- * otherwise on failure.
- */
- int android_image_get_kernel(const void *hdr,
- const void *vendor_boot_img, int verify,
- ulong *os_data, ulong *os_len)
- {
- struct andr_image_data img_data = {0};
- u32 kernel_addr;
- const struct legacy_img_hdr *ihdr;
- if (!android_image_get_data(hdr, vendor_boot_img, &img_data))
- return -EINVAL;
- kernel_addr = android_image_get_kernel_addr(&img_data);
- ihdr = (const struct legacy_img_hdr *)img_data.kernel_ptr;
- /*
- * Not all Android tools use the id field for signing the image with
- * sha1 (or anything) so we don't check it. It is not obvious that the
- * string is null terminated so we take care of this.
- */
- strlcpy(andr_tmp_str, img_data.image_name, ANDR_BOOT_NAME_SIZE);
- andr_tmp_str[ANDR_BOOT_NAME_SIZE] = '\0';
- if (strlen(andr_tmp_str))
- printf("Android's image name: %s\n", andr_tmp_str);
- printf("Kernel load addr 0x%08x size %u KiB\n",
- kernel_addr, DIV_ROUND_UP(img_data.kernel_size, 1024));
- int len = 0;
- if (*img_data.kcmdline) {
- printf("Kernel command line: %s\n", img_data.kcmdline);
- len += strlen(img_data.kcmdline);
- }
- if (img_data.kcmdline_extra) {
- printf("Kernel extra command line: %s\n", img_data.kcmdline_extra);
- len += strlen(img_data.kcmdline_extra);
- }
- char *bootargs = env_get("bootargs");
- if (bootargs)
- len += strlen(bootargs);
- char *newbootargs = malloc(len + 2);
- if (!newbootargs) {
- puts("Error: malloc in android_image_get_kernel failed!\n");
- return -ENOMEM;
- }
- *newbootargs = '\0';
- if (bootargs) {
- strcpy(newbootargs, bootargs);
- strcat(newbootargs, " ");
- }
- if (*img_data.kcmdline)
- strcat(newbootargs, img_data.kcmdline);
- if (img_data.kcmdline_extra) {
- strcat(newbootargs, " ");
- strcat(newbootargs, img_data.kcmdline_extra);
- }
- env_set("bootargs", newbootargs);
- if (os_data) {
- if (image_get_magic(ihdr) == IH_MAGIC) {
- *os_data = image_get_data(ihdr);
- } else {
- *os_data = img_data.kernel_ptr;
- }
- }
- if (os_len) {
- if (image_get_magic(ihdr) == IH_MAGIC)
- *os_len = image_get_data_size(ihdr);
- else
- *os_len = img_data.kernel_size;
- }
- return 0;
- }
- bool is_android_vendor_boot_image_header(const void *vendor_boot_img)
- {
- return !memcmp(VENDOR_BOOT_MAGIC, vendor_boot_img, ANDR_VENDOR_BOOT_MAGIC_SIZE);
- }
- bool is_android_boot_image_header(const void *hdr)
- {
- return !memcmp(ANDR_BOOT_MAGIC, hdr, ANDR_BOOT_MAGIC_SIZE);
- }
- ulong android_image_get_end(const struct andr_boot_img_hdr_v0 *hdr,
- const void *vendor_boot_img)
- {
- struct andr_image_data img_data;
- if (!android_image_get_data(hdr, vendor_boot_img, &img_data))
- return -EINVAL;
- if (img_data.header_version > 2)
- return 0;
- return img_data.boot_img_total_size;
- }
- ulong android_image_get_kload(const void *hdr,
- const void *vendor_boot_img)
- {
- struct andr_image_data img_data;
- if (!android_image_get_data(hdr, vendor_boot_img, &img_data))
- return -EINVAL;
- return android_image_get_kernel_addr(&img_data);
- }
- ulong android_image_get_kcomp(const void *hdr,
- const void *vendor_boot_img)
- {
- struct andr_image_data img_data;
- const void *p;
- if (!android_image_get_data(hdr, vendor_boot_img, &img_data))
- return -EINVAL;
- p = (const void *)img_data.kernel_ptr;
- if (image_get_magic((struct legacy_img_hdr *)p) == IH_MAGIC)
- return image_get_comp((struct legacy_img_hdr *)p);
- else if (get_unaligned_le32(p) == LZ4F_MAGIC)
- return IH_COMP_LZ4;
- else
- return image_decomp_type(p, sizeof(u32));
- }
- int android_image_get_ramdisk(const void *hdr, const void *vendor_boot_img,
- ulong *rd_data, ulong *rd_len)
- {
- struct andr_image_data img_data = {0};
- ulong ramdisk_ptr;
- if (!android_image_get_data(hdr, vendor_boot_img, &img_data))
- return -EINVAL;
- if (!img_data.ramdisk_size) {
- *rd_data = *rd_len = 0;
- return -1;
- }
- if (img_data.header_version > 2) {
- ramdisk_ptr = img_data.ramdisk_ptr;
- memcpy((void *)(ramdisk_ptr), (void *)img_data.vendor_ramdisk_ptr,
- img_data.vendor_ramdisk_size);
- memcpy((void *)(ramdisk_ptr + img_data.vendor_ramdisk_size),
- (void *)img_data.ramdisk_ptr,
- img_data.boot_ramdisk_size);
- if (img_data.bootconfig_size) {
- memcpy((void *)
- (ramdisk_ptr + img_data.vendor_ramdisk_size +
- img_data.boot_ramdisk_size),
- (void *)img_data.bootconfig_addr,
- img_data.bootconfig_size);
- }
- }
- printf("RAM disk load addr 0x%08lx size %u KiB\n",
- img_data.ramdisk_ptr, DIV_ROUND_UP(img_data.ramdisk_size, 1024));
- *rd_data = img_data.ramdisk_ptr;
- *rd_len = img_data.ramdisk_size;
- return 0;
- }
- int android_image_get_second(const void *hdr, ulong *second_data, ulong *second_len)
- {
- struct andr_image_data img_data;
- if (!android_image_get_data(hdr, NULL, &img_data))
- return -EINVAL;
- if (img_data.header_version > 2) {
- printf("Second stage bootloader is only supported for boot image version <= 2\n");
- return -EOPNOTSUPP;
- }
- if (!img_data.second_size) {
- *second_data = *second_len = 0;
- return -1;
- }
- *second_data = img_data.second_ptr;
- printf("second address is 0x%lx\n",*second_data);
- *second_len = img_data.second_size;
- return 0;
- }
- /**
- * android_image_get_dtbo() - Get address and size of recovery DTBO image.
- * @hdr_addr: Boot image header address
- * @addr: If not NULL, will contain address of recovery DTBO image
- * @size: If not NULL, will contain size of recovery DTBO image
- *
- * Get the address and size of DTBO image in "Recovery DTBO" area of Android
- * Boot Image in RAM. The format of this image is Android DTBO (see
- * corresponding "DTB/DTBO Partitions" AOSP documentation for details). Once
- * the address is obtained from this function, one can use 'adtimg' U-Boot
- * command or android_dt_*() functions to extract desired DTBO blob.
- *
- * This DTBO (included in boot image) is only needed for non-A/B devices, and it
- * only can be found in recovery image. On A/B devices we can always rely on
- * "dtbo" partition. See "Including DTBO in Recovery for Non-A/B Devices" in
- * AOSP documentation for details.
- *
- * Return: true on success or false on error.
- */
- bool android_image_get_dtbo(ulong hdr_addr, ulong *addr, u32 *size)
- {
- const struct andr_boot_img_hdr_v0 *hdr;
- ulong dtbo_img_addr;
- bool ret = true;
- hdr = map_sysmem(hdr_addr, sizeof(*hdr));
- if (!is_android_boot_image_header(hdr)) {
- printf("Error: Boot Image header is incorrect\n");
- ret = false;
- goto exit;
- }
- if (hdr->header_version != 1 && hdr->header_version != 2) {
- printf("Error: header version must be >= 1 and <= 2 to get dtbo\n");
- ret = false;
- goto exit;
- }
- if (hdr->recovery_dtbo_size == 0) {
- printf("Error: recovery_dtbo_size is 0\n");
- ret = false;
- goto exit;
- }
- /* Calculate the address of DTB area in boot image */
- dtbo_img_addr = hdr_addr;
- dtbo_img_addr += hdr->page_size;
- dtbo_img_addr += ALIGN(hdr->kernel_size, hdr->page_size);
- dtbo_img_addr += ALIGN(hdr->ramdisk_size, hdr->page_size);
- dtbo_img_addr += ALIGN(hdr->second_size, hdr->page_size);
- if (addr)
- *addr = dtbo_img_addr;
- if (size)
- *size = hdr->recovery_dtbo_size;
- exit:
- unmap_sysmem(hdr);
- return ret;
- }
- /**
- * android_image_get_dtb_img_addr() - Get the address of DTB area in boot image.
- * @hdr_addr: Boot image header address
- * @vhdr_addr: Vendor Boot image header address
- * @addr: Will contain the address of DTB area in boot image
- *
- * Return: true on success or false on fail.
- */
- static bool android_image_get_dtb_img_addr(ulong hdr_addr, ulong vhdr_addr, ulong *addr)
- {
- const struct andr_boot_img_hdr_v0 *hdr;
- const struct andr_vnd_boot_img_hdr *v_hdr;
- ulong dtb_img_addr;
- bool ret = true;
- hdr = map_sysmem(hdr_addr, sizeof(*hdr));
- if (!is_android_boot_image_header(hdr)) {
- printf("Error: Boot Image header is incorrect\n");
- ret = false;
- goto exit;
- }
- if (hdr->header_version < 2) {
- printf("Error: header_version must be >= 2 to get dtb\n");
- ret = false;
- goto exit;
- }
- if (hdr->header_version == 2) {
- if (!hdr->dtb_size) {
- printf("Error: dtb_size is 0\n");
- ret = false;
- goto exit;
- }
- /* Calculate the address of DTB area in boot image */
- dtb_img_addr = hdr_addr;
- dtb_img_addr += hdr->page_size;
- dtb_img_addr += ALIGN(hdr->kernel_size, hdr->page_size);
- dtb_img_addr += ALIGN(hdr->ramdisk_size, hdr->page_size);
- dtb_img_addr += ALIGN(hdr->second_size, hdr->page_size);
- dtb_img_addr += ALIGN(hdr->recovery_dtbo_size, hdr->page_size);
- *addr = dtb_img_addr;
- }
- if (hdr->header_version > 2) {
- v_hdr = map_sysmem(vhdr_addr, sizeof(*v_hdr));
- if (!v_hdr->dtb_size) {
- printf("Error: dtb_size is 0\n");
- ret = false;
- unmap_sysmem(v_hdr);
- goto exit;
- }
- /* Calculate the address of DTB area in boot image */
- dtb_img_addr = vhdr_addr;
- dtb_img_addr += v_hdr->page_size;
- if (v_hdr->vendor_ramdisk_size)
- dtb_img_addr += ALIGN(v_hdr->vendor_ramdisk_size, v_hdr->page_size);
- *addr = dtb_img_addr;
- unmap_sysmem(v_hdr);
- goto exit;
- }
- exit:
- unmap_sysmem(hdr);
- return ret;
- }
- /**
- * android_image_get_dtb_by_index() - Get address and size of blob in DTB area.
- * @hdr_addr: Boot image header address
- * @vendor_boot_img: Pointer to vendor boot image header, which is at the start of the image.
- * @index: Index of desired DTB in DTB area (starting from 0)
- * @addr: If not NULL, will contain address to specified DTB
- * @size: If not NULL, will contain size of specified DTB
- *
- * Get the address and size of DTB blob by its index in DTB area of Android
- * Boot Image in RAM.
- *
- * Return: true on success or false on error.
- */
- bool android_image_get_dtb_by_index(ulong hdr_addr, ulong vendor_boot_img,
- u32 index, ulong *addr, u32 *size)
- {
- struct andr_image_data img_data;
- const struct andr_boot_img_hdr_v0 *hdr;
- const struct andr_vnd_boot_img_hdr *vhdr;
- hdr = map_sysmem(hdr_addr, sizeof(*hdr));
- if (vendor_boot_img != -1)
- vhdr = map_sysmem(vendor_boot_img, sizeof(*vhdr));
- if (!android_image_get_data(hdr, vhdr, &img_data)) {
- if (vendor_boot_img != -1)
- unmap_sysmem(vhdr);
- unmap_sysmem(hdr);
- return false;
- }
- if (vendor_boot_img != -1)
- unmap_sysmem(vhdr);
- unmap_sysmem(hdr);
- ulong dtb_img_addr; /* address of DTB part in boot image */
- u32 dtb_img_size; /* size of DTB payload in boot image */
- ulong dtb_addr; /* address of DTB blob with specified index */
- u32 i; /* index iterator */
- android_image_get_dtb_img_addr(hdr_addr, vendor_boot_img, &dtb_img_addr);
- /* Check if DTB area of boot image is in DTBO format */
- if (android_dt_check_header(dtb_img_addr)) {
- return android_dt_get_fdt_by_index(dtb_img_addr, index, addr,
- size);
- }
- /* Find out the address of DTB with specified index in concat blobs */
- dtb_img_size = img_data.dtb_size;
- i = 0;
- dtb_addr = dtb_img_addr;
- while (dtb_addr < dtb_img_addr + dtb_img_size) {
- const struct fdt_header *fdt;
- u32 dtb_size;
- fdt = map_sysmem(dtb_addr, sizeof(*fdt));
- if (fdt_check_header(fdt) != 0) {
- unmap_sysmem(fdt);
- printf("Error: Invalid FDT header for index %u\n", i);
- return false;
- }
- dtb_size = fdt_totalsize(fdt);
- unmap_sysmem(fdt);
- if (i == index) {
- if (size)
- *size = dtb_size;
- if (addr)
- *addr = dtb_addr;
- return true;
- }
- dtb_addr += dtb_size;
- ++i;
- }
- printf("Error: Index is out of bounds (%u/%u)\n", index, i);
- return false;
- }
- #if !defined(CONFIG_SPL_BUILD)
- /**
- * android_print_contents - prints out the contents of the Android format image
- * @hdr: pointer to the Android format image header
- *
- * android_print_contents() formats a multi line Android image contents
- * description.
- * The routine prints out Android image properties
- *
- * returns:
- * no returned results
- */
- void android_print_contents(const struct andr_boot_img_hdr_v0 *hdr)
- {
- if (hdr->header_version >= 3) {
- printf("Content print is not supported for boot image header version > 2");
- return;
- }
- const char * const p = IMAGE_INDENT_STRING;
- /* os_version = ver << 11 | lvl */
- u32 os_ver = hdr->os_version >> 11;
- u32 os_lvl = hdr->os_version & ((1U << 11) - 1);
- printf("%skernel size: %x\n", p, hdr->kernel_size);
- printf("%skernel address: %x\n", p, hdr->kernel_addr);
- printf("%sramdisk size: %x\n", p, hdr->ramdisk_size);
- printf("%sramdisk address: %x\n", p, hdr->ramdisk_addr);
- printf("%ssecond size: %x\n", p, hdr->second_size);
- printf("%ssecond address: %x\n", p, hdr->second_addr);
- printf("%stags address: %x\n", p, hdr->tags_addr);
- printf("%spage size: %x\n", p, hdr->page_size);
- /* ver = A << 14 | B << 7 | C (7 bits for each of A, B, C)
- * lvl = ((Y - 2000) & 127) << 4 | M (7 bits for Y, 4 bits for M) */
- printf("%sos_version: %x (ver: %u.%u.%u, level: %u.%u)\n",
- p, hdr->os_version,
- (os_ver >> 7) & 0x7F, (os_ver >> 14) & 0x7F, os_ver & 0x7F,
- (os_lvl >> 4) + 2000, os_lvl & 0x0F);
- printf("%sname: %s\n", p, hdr->name);
- printf("%scmdline: %s\n", p, hdr->cmdline);
- printf("%sheader_version: %d\n", p, hdr->header_version);
- if (hdr->header_version >= 1) {
- printf("%srecovery dtbo size: %x\n", p,
- hdr->recovery_dtbo_size);
- printf("%srecovery dtbo offset: %llx\n", p,
- hdr->recovery_dtbo_offset);
- printf("%sheader size: %x\n", p,
- hdr->header_size);
- }
- if (hdr->header_version == 2) {
- printf("%sdtb size: %x\n", p, hdr->dtb_size);
- printf("%sdtb addr: %llx\n", p, hdr->dtb_addr);
- }
- }
- /**
- * android_image_print_dtb_info - Print info for one DTB blob in DTB area.
- * @fdt: DTB header
- * @index: Number of DTB blob in DTB area.
- *
- * Return: true on success or false on error.
- */
- static bool android_image_print_dtb_info(const struct fdt_header *fdt,
- u32 index)
- {
- int root_node_off;
- u32 fdt_size;
- const char *model;
- const char *compatible;
- root_node_off = fdt_path_offset(fdt, "/");
- if (root_node_off < 0) {
- printf("Error: Root node not found\n");
- return false;
- }
- fdt_size = fdt_totalsize(fdt);
- compatible = fdt_getprop(fdt, root_node_off, "compatible",
- NULL);
- model = fdt_getprop(fdt, root_node_off, "model", NULL);
- printf(" - DTB #%u:\n", index);
- printf(" (DTB)size = %d\n", fdt_size);
- printf(" (DTB)model = %s\n", model ? model : "(unknown)");
- printf(" (DTB)compatible = %s\n",
- compatible ? compatible : "(unknown)");
- return true;
- }
- /**
- * android_image_print_dtb_contents() - Print info for DTB blobs in DTB area.
- * @hdr_addr: Boot image header address
- *
- * DTB payload in Android Boot Image v2+ can be in one of following formats:
- * 1. Concatenated DTB blobs
- * 2. Android DTBO format (see CONFIG_CMD_ADTIMG for details)
- *
- * This function does next:
- * 1. Prints out the format used in DTB area
- * 2. Iterates over all DTB blobs in DTB area and prints out the info for
- * each blob.
- *
- * Return: true on success or false on error.
- */
- bool android_image_print_dtb_contents(ulong hdr_addr)
- {
- const struct andr_boot_img_hdr_v0 *hdr;
- bool res;
- ulong dtb_img_addr; /* address of DTB part in boot image */
- u32 dtb_img_size; /* size of DTB payload in boot image */
- ulong dtb_addr; /* address of DTB blob with specified index */
- u32 i; /* index iterator */
- res = android_image_get_dtb_img_addr(hdr_addr, 0, &dtb_img_addr);
- if (!res)
- return false;
- /* Check if DTB area of boot image is in DTBO format */
- if (android_dt_check_header(dtb_img_addr)) {
- printf("## DTB area contents (DTBO format):\n");
- android_dt_print_contents(dtb_img_addr);
- return true;
- }
- printf("## DTB area contents (concat format):\n");
- /* Iterate over concatenated DTB blobs */
- hdr = map_sysmem(hdr_addr, sizeof(*hdr));
- dtb_img_size = hdr->dtb_size;
- unmap_sysmem(hdr);
- i = 0;
- dtb_addr = dtb_img_addr;
- while (dtb_addr < dtb_img_addr + dtb_img_size) {
- const struct fdt_header *fdt;
- u32 dtb_size;
- fdt = map_sysmem(dtb_addr, sizeof(*fdt));
- if (fdt_check_header(fdt) != 0) {
- unmap_sysmem(fdt);
- printf("Error: Invalid FDT header for index %u\n", i);
- return false;
- }
- res = android_image_print_dtb_info(fdt, i);
- if (!res) {
- unmap_sysmem(fdt);
- return false;
- }
- dtb_size = fdt_totalsize(fdt);
- unmap_sysmem(fdt);
- dtb_addr += dtb_size;
- ++i;
- }
- return true;
- }
- #endif
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