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Diffstat (limited to 'common')
-rw-r--r--common/cmd_fastboot.c22
1 files changed, 13 insertions, 9 deletions
diff --git a/common/cmd_fastboot.c b/common/cmd_fastboot.c
index 16384e7..b41b8ee 100644
--- a/common/cmd_fastboot.c
+++ b/common/cmd_fastboot.c
@@ -1549,7 +1549,10 @@ int do_booti(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
#ifdef CONFIG_SECURE_BOOT
#define IVT_SIZE 0x20
#define CSF_PAD_SIZE 0x2000
-#define ANDROID_BOOT_AUTH_SIZE 0x740000
+/* Max of bootimage size to be 16MB */
+#define MAX_ANDROID_BOOT_AUTH_SIZE 0x1000000
+/* Size appended to boot.img with boot_signer */
+#define BOOTIMAGE_SIGNATURE_SIZE 0x100
#endif
int i = 0;
bootm_headers_t images;
@@ -1627,14 +1630,16 @@ int do_booti(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
bootimg_addr = hdr->kernel_addr - hdr->page_size;
#ifdef CONFIG_SECURE_BOOT
- /* Default boot.img should be padded to ANDROID_BOOT_AUTH_SIZE
- before appended with IVT&CSF data. If the default boot.img exceed the
- size, the IVT&CSF data cannot appended to the end of boot.img */
- if (image_size > ANDROID_BOOT_AUTH_SIZE) {
+ /* Default boot.img should be padded to 0x1000
+ before appended with IVT&CSF data. Set the threshold of
+ boot image for athendication as 16MB
+ */
+ image_size += BOOTIMAGE_SIGNATURE_SIZE;
+ image_size = ALIGN_SECTOR(image_size, 0x1000);
+ if (image_size > MAX_ANDROID_BOOT_AUTH_SIZE) {
printf("The image size is too large for athenticated boot!\n");
return 1;
}
- image_size = ANDROID_BOOT_AUTH_SIZE;
/* Make sure all data boot.img + IVT + CSF been read to memory */
bootimg_sectors = image_size/512 +
ALIGN_SECTOR(IVT_SIZE + CSF_PAD_SIZE, 512)/512;
@@ -1720,12 +1725,11 @@ int do_booti(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
image_size = hdr->page_size +
ALIGN_SECTOR(hdr->kernel_size, hdr->page_size) +
ALIGN_SECTOR(hdr->ramdisk_size, hdr->page_size) +
- ALIGN_SECTOR(hdr->second_size, hdr->page_size);
- if (image_size > ANDROID_BOOT_AUTH_SIZE) {
+ ALIGN_SECTOR(hdr->second_size, hdr->page_size) + BOOTIMAGE_SIGNATURE_SIZE;
+ if (image_size > MAX_ANDROID_BOOT_AUTH_SIZE) {
printf("The image size is too large for athenticated boot!\n");
return 1;
}
- image_size = ANDROID_BOOT_AUTH_SIZE;
bootimg_addr = addr;
extern uint32_t authenticate_image(uint32_t ddr_start,
uint32_t image_size);