From bc6413bdd9a4a7ab8a62232aa4791cc26a0ef215 Mon Sep 17 00:00:00 2001 From: Safae Ouajih Date: Mon, 6 Feb 2023 00:50:16 +0100 Subject: [PATCH] drivers: fastboot: zImage flashing is not supported for v3, v4 With vendor boot image introduced in version 3 and 4 of boot image header, boot information is located in both boot image and vendor boot image. Flashing zImage is not supported for version 3 and 4 since this requires updating vendor boot image and/or generating a new image. Print an error message when the boot image header version is greater than 2. Signed-off-by: Safae Ouajih Reviewed-by: Mattijs Korpershoek Tested-by: Mattijs Korpershoek --- drivers/fastboot/fb_mmc.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/fastboot/fb_mmc.c b/drivers/fastboot/fb_mmc.c index 29c18cb82a..9d25c40202 100644 --- a/drivers/fastboot/fb_mmc.c +++ b/drivers/fastboot/fb_mmc.c @@ -370,6 +370,14 @@ static int fb_mmc_update_zimage(struct blk_desc *dev_desc, return -1; } + /* Check if boot image header version is 2 or less */ + if (hdr->header_version > 2) { + pr_err("zImage flashing supported only for boot images v2 and less\n"); + fastboot_fail("zImage flashing supported only for boot images v2 and less", + response); + return -EOPNOTSUPP; + } + /* Check if boot image has second stage in it (we don't support it) */ if (hdr->second_size > 0) { pr_err("moving second stage is not supported yet\n"); -- 2.39.5