From d98f191aff4b387fcd083d503a6c88bd468deb69 Mon Sep 17 00:00:00 2001 From: Harald Seiler Date: Fri, 7 Dec 2018 10:19:36 +0100 Subject: [PATCH] pcm058: fix NAND flash not using badblock table Currently, U-Boot ignores the BBT stored in the last 4 blocks of NAND flash because the NAND_BBT_USE_FLASH flag is not set. This leads to two issues: * U-Boot silently uses a memory-only BBT which is initialized with all blocks marked as good. This means, actual bad blocks are marked good and U-Boot might try writing to or reading from them. * The BBT in flash, which will be created once Linux boots up, is not off limits for a driver ontop, like UBI. While it does not seem to consistently produce an error, sometimes UBI will fail to attach because the BBT blocks obviously don't contain valid UBI data. To fix this, this patch sets the CONFIG_SYS_NAND_USE_FLASH_BBT option, which is used in ./drivers/mtd/nand/raw/mxs_nand.c to decide whether a BBT in flash is used. Signed-off-by: Harald Seiler --- include/configs/pcm058.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/configs/pcm058.h b/include/configs/pcm058.h index 49048c1..b9bc08b 100644 --- a/include/configs/pcm058.h +++ b/include/configs/pcm058.h @@ -55,6 +55,7 @@ #define CONFIG_SYS_NAND_BASE 0x40000000 #define CONFIG_SYS_NAND_5_ADDR_CYCLE #define CONFIG_SYS_NAND_ONFI_DETECTION +#define CONFIG_SYS_NAND_USE_FLASH_BBT #endif /* DMA stuff, needed for GPMI/MXS NAND support */ -- 2.7.4