From 527832e54bf3bc4d699a145ae66f34230246f0a9 Mon Sep 17 00:00:00 2001 From: David Bauer Date: Wed, 28 Aug 2019 23:40:51 +0200 Subject: [PATCH] ramips: disable badblock shifting for MT7621 NAND The MediaTek MT7621 NAND driver currently intransparently shifts NAND pages when a block is marked as bad. Because of this, offsets for e.g. caldata and MAC-addresses seem to be off. This is, howeer, not a task for the mtd NAND driver, as the flash translation layer is tasked with this. This patch disables this badblock shifting. This fix was originally proposed by Jo-Philipp Wich at https://bugs.openwrt.org/index.php?do=details&task_id=1926 Fixes FS#1926 ("MTD partition offset not correctly mapped when bad eraseblocks present") Signed-off-by: David Bauer --- .../ramips/patches-4.14/0039-mtd-add-mt7621-nand-support.patch | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/target/linux/ramips/patches-4.14/0039-mtd-add-mt7621-nand-support.patch b/target/linux/ramips/patches-4.14/0039-mtd-add-mt7621-nand-support.patch index d50e689110..03b2b36db9 100644 --- a/target/linux/ramips/patches-4.14/0039-mtd-add-mt7621-nand-support.patch +++ b/target/linux/ramips/patches-4.14/0039-mtd-add-mt7621-nand-support.patch @@ -3578,7 +3578,7 @@ Signed-off-by: John Crispin + if (!err) { + MSG(INIT, "[mtk_nand] probe successfully!\n"); + nand_disable_clock(); -+ shift_on_bbt = 1; ++ shift_on_bbt = 0; + if (load_fact_bbt(mtd) == 0) { + int i; + for (i = 0; i < 0x100; i++) -- 2.30.2