This patch is about bootm process, android boot image and device tree.

Android 10 updates the boot image header to version 2, which includes a section to store the device tree blob (DTB) image.

include/android_image.h has updated the struct andr_img_hdr, but not used in bootm process. This patch avoid reporting "Device tree not found or missing FDT support" when bootm a correctly constructed android boot image.

Signed-off-by: chenshuo chenshuo@eswin.com ---

common/image-fdt.c | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/common/image-fdt.c b/common/image-fdt.c index 7005b34966..f13eefb061 100644 --- a/common/image-fdt.c +++ b/common/image-fdt.c @@ -465,10 +465,20 @@ int boot_get_fdt(int flag, int argc, char *const argv[], uint8_t arch, #ifdef CONFIG_ANDROID_BOOT_IMAGE } else if (genimg_get_format(buf) == IMAGE_FORMAT_ANDROID) { struct andr_img_hdr *hdr = buf; - ulong fdt_data, fdt_len; + ulong fdt_data, fdt_len; + u32 fdt_size, dtb_idx; + /* + * Firstly check if this android boot image has dtb field. + */ + dtb_idx = (u32)env_get_ulong("adtb_idx", 10, 0); + if (android_image_get_dtb_by_index((ulong)hdr, dtb_idx, &fdt_addr, &fdt_size)) { + fdt_blob = (char *)map_sysmem(fdt_addr, 0); + if (fdt_check_header(fdt_blob)) + goto no_fdt;

- if (!android_image_get_second(hdr, &fdt_data, &fdt_len) && - !fdt_check_header((char *)fdt_data)) { + debug("## Using FDT in Android image dtb area with idx %u\n", dtb_idx); + } else if (!android_image_get_second(hdr, &fdt_data, &fdt_len) && + !fdt_check_header((char *)fdt_data)) { fdt_blob = (char *)fdt_data; if (fdt_totalsize(fdt_blob) != fdt_len) goto error;