+// SPDX-License-Identifier: GPL-2.0+
/*
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#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>
#define ANDROID_IMAGE_DEFAULT_KERNEL_ADDR 0x10008000
ulong *os_data, ulong *os_len)
{
u32 kernel_addr = android_image_get_kernel_addr(hdr);
+ const struct image_header *ihdr = (const struct image_header *)
+ ((uintptr_t)hdr + hdr->page_size);
/*
* Not all Android tools use the id field for signing the image with
env_set("bootargs", newbootargs);
if (os_data) {
- *os_data = (ulong)hdr;
- *os_data += hdr->page_size;
+ if (image_get_magic(ihdr) == IH_MAGIC) {
+ *os_data = image_get_data(ihdr);
+ } else {
+ *os_data = (ulong)hdr;
+ *os_data += hdr->page_size;
+ }
+ }
+ if (os_len) {
+ if (image_get_magic(ihdr) == IH_MAGIC)
+ *os_len = image_get_data_size(ihdr);
+ else
+ *os_len = hdr->kernel_size;
}
- if (os_len)
- *os_len = hdr->kernel_size;
return 0;
}
ulong android_image_get_end(const struct andr_img_hdr *hdr)
{
ulong end;
+
/*
* The header takes a full page, the remaining components are aligned
* on page boundary
end += ALIGN(hdr->ramdisk_size, hdr->page_size);
end += ALIGN(hdr->second_size, hdr->page_size);
+ if (hdr->header_version >= 1)
+ end += ALIGN(hdr->recovery_dtbo_size, hdr->page_size);
+
+ if (hdr->header_version >= 2)
+ end += ALIGN(hdr->dtb_size, hdr->page_size);
+
return end;
}
return android_image_get_kernel_addr(hdr);
}
+ulong android_image_get_kcomp(const struct andr_img_hdr *hdr)
+{
+ const void *p = (void *)((uintptr_t)hdr + hdr->page_size);
+
+ if (image_get_magic((image_header_t *)p) == IH_MAGIC)
+ return image_get_comp((image_header_t *)p);
+ else if (get_unaligned_le32(p) == LZ4F_MAGIC)
+ return IH_COMP_LZ4;
+ else
+ return IH_COMP_NONE;
+}
+
int android_image_get_ramdisk(const struct andr_img_hdr *hdr,
ulong *rd_data, ulong *rd_len)
{
return 0;
}
+int android_image_get_second(const struct andr_img_hdr *hdr,
+ ulong *second_data, ulong *second_len)
+{
+ if (!hdr->second_size) {
+ *second_data = *second_len = 0;
+ return -1;
+ }
+
+ *second_data = (unsigned long)hdr;
+ *second_data += hdr->page_size;
+ *second_data += ALIGN(hdr->kernel_size, hdr->page_size);
+ *second_data += ALIGN(hdr->ramdisk_size, hdr->page_size);
+
+ printf("second address is 0x%lx\n",*second_data);
+
+ *second_len = hdr->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_img_hdr *hdr;
+ ulong dtbo_img_addr;
+ bool ret = true;
+
+ hdr = map_sysmem(hdr_addr, sizeof(*hdr));
+ if (android_image_check_header(hdr)) {
+ printf("Error: Boot Image header is incorrect\n");
+ ret = false;
+ goto exit;
+ }
+
+ if (hdr->header_version < 1) {
+ printf("Error: header_version must be >= 1 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
+ * @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 *addr)
+{
+ const struct andr_img_hdr *hdr;
+ ulong dtb_img_addr;
+ bool ret = true;
+
+ hdr = map_sysmem(hdr_addr, sizeof(*hdr));
+ if (android_image_check_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->dtb_size == 0) {
+ 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;
+
+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
+ * @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, u32 index, ulong *addr,
+ u32 *size)
+{
+ const struct andr_img_hdr *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, &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)) {
+ 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 */
+ 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;
+ }
+
+ 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
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 addrress: %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);
+ 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",
+ 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("%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_img_hdr *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, &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
projects / J-u-boot.git / blobdiff