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path: root/target/linux/ath79/patches-5.4/450-fix-block-protection-clearing.patch
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* kernel: bump 5.4 to 5.4.85John Audia2020-12-221-3/+3
| | | | | | | | | | | | | All modifications made by update_kernel.sh run in a fresh clone without any existing toolchains. Build system: x86_64 Build-tested: ipq806x/R7800, ath79/generic, bcm27xx/bcm2711 Run-tested: ipq806x/R7800 No dmesg regressions, everything functional Signed-off-by: John Audia <graysky@archlinux.us>
* ath79: fix block protection clearingNick Hainke2020-10-261-0/+28
The block protection bits of macronix do not match the implementation. The chip has 3 BP bits. Bit 5 is actually the third BP but here the 5th bit is SR_TB. Therefore the patch adds SR_TB to the mask. In the 4.19er kernel the whole register was simply set to 0. The wrong implementation did not remove the block protection. This led to jffs2 errors in the form of: "jffs2: Newly-erased block contained word 0x19852003 at offset 0x..." This caused inconsistent memory and other errors. Suggested-by: David Bauer <mail@david-bauer.net> Signed-off-by: Nick Hainke <vincent@systemli.org>