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 <souajih@baylibre.com>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Tested-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
This commit is contained in:
Safae Ouajih 2023-02-06 00:50:16 +01:00 committed by Tom Rini
parent 2d0da1972d
commit bc6413bdd9

View file

@ -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");