From: Sergey Sergeev <adron@yapic.net>
Date: Wed, 31 May 2017 08:00:01 +0000 (+0300)
Subject: ar71xx: Fix UBIFS work on Mikrotik RB95x devices
X-Git-Tag: v17.01.3~79
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=d71ffb9639564b91b92355fe35a72e0ed7cd2298;p=openwrt%2Fopenwrt.git

ar71xx: Fix UBIFS work on Mikrotik RB95x devices

If nand chip has no NAND_NO_SUBPAGE_WRITE flag on its options
ubifs can't use it mtd devices and the kernel crashes with error:
__nand_correct_data: uncorrectable ECC error

Signed-off-by: Sergey Sergeev <adron@yapic.net>
---

diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-rb95x.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-rb95x.c
index 05e15e77e1..e940d6cc11 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/mach-rb95x.c
+++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-rb95x.c
@@ -165,6 +165,8 @@ static int rb95x_nand_scan_fixup(struct mtd_info *mtd)
 		chip->ecc.layout = &rb95x_nand_ecclayout;
 	}
 
+	chip->options = NAND_NO_SUBPAGE_WRITE;
+
 	return 0;
 }