apm821xx: add back end-of-UBI marker for the WNDR4700 and MR24
The patch "build: drop UBI EOF marker from images by default"
(commit d27bce8d28) removed the
end-of-UBI marker. Without this marker, the boards will panic
during boot:
[ 1.683458] ubi0: attaching mtd4
[ 1.696181] ubi0 warning: scan_peb: valid VID header but corrupted EC header at PEB 31
[ 1.704367] ubi0 error: scan_peb: bad image sequence number 549886691 in PEB 32, expected 184585623
[ 1.713377] Erase counter header dump:
[ 1.717110] magic 0x55424923
[ 1.720843] version 1
[ 1.723797] ec 0
[ 1.726752] vid_hdr_offset 512
[ 1.729880] data_offset 2048
[ 1.733094] image_seq 549886691
[ 1.736740] hdr_crc 0x92ba8130
[ 1.740472] erase counter header hexdump:
[ 1.744493] ubi0 error: ubi_attach_mtd_dev: failed to attach mtd4, error -22
[ 1.751528] UBI error: cannot attach mtd4
[ 1.755373] hctosys: unable to open rtc device (rtc0)
[ 1.761130] VFS: Cannot open root device "(null)" or unknown-block(0,0): error -6
[ 1.768604] Please append a correct "root=" boot option; here are the available partitions:
[...]
[ 1.856992] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
[ 1.866519] Rebooting in 1 seconds..Auto calibration ---
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
8f2c2f94cf