diff options
Diffstat (limited to 'recipes/u-boot/u-boot-mkimage-openmoko-native/bbt-create-optional.patch')
| -rw-r--r-- | recipes/u-boot/u-boot-mkimage-openmoko-native/bbt-create-optional.patch | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/recipes/u-boot/u-boot-mkimage-openmoko-native/bbt-create-optional.patch b/recipes/u-boot/u-boot-mkimage-openmoko-native/bbt-create-optional.patch new file mode 100644 index 0000000000..d7a2a872e5 --- /dev/null +++ b/recipes/u-boot/u-boot-mkimage-openmoko-native/bbt-create-optional.patch @@ -0,0 +1,52 @@ +This patch makes creation of the BBT optional for the s3c24x0 platform. +It adds: + +- a new platform-independent NAND-wide flag NAND_DONT_CREATE_BBT +- one user of this flag, namely s3c24x0 + +Experimental. + +- Werner Almesberger <werner@openmoko.org> + + +Index: u-boot/cpu/arm920t/s3c24x0/nand.c +=================================================================== +--- u-boot.orig/cpu/arm920t/s3c24x0/nand.c 2007-02-16 23:53:29.000000000 +0100 ++++ u-boot/cpu/arm920t/s3c24x0/nand.c 2007-02-16 23:53:54.000000000 +0100 +@@ -169,7 +169,7 @@ + + nand->eccmode = NAND_ECC_SOFT; + #ifdef CONFIG_S3C2410_NAND_BBT +- nand->options = NAND_USE_FLASH_BBT; ++ nand->options = NAND_USE_FLASH_BBT | NAND_DONT_CREATE_BBT; + #else + nand->options = 0; + #endif +Index: u-boot/drivers/nand/nand_bbt.c +=================================================================== +--- u-boot.orig/drivers/nand/nand_bbt.c 2007-02-16 23:53:36.000000000 +0100 ++++ u-boot/drivers/nand/nand_bbt.c 2007-02-16 23:53:54.000000000 +0100 +@@ -678,7 +678,8 @@ + } + create: + /* Create the bad block table by scanning the device ? */ +- if (!(td->options & NAND_BBT_CREATE)) ++ if (!(td->options & NAND_BBT_CREATE) || ++ (this->options & NAND_DONT_CREATE_BBT)) + continue; + + /* Create the table in memory by scanning the chip(s) */ +Index: u-boot/include/linux/mtd/nand.h +=================================================================== +--- u-boot.orig/include/linux/mtd/nand.h 2007-02-16 23:53:08.000000000 +0100 ++++ u-boot/include/linux/mtd/nand.h 2007-02-16 23:53:54.000000000 +0100 +@@ -187,7 +187,8 @@ + * This can only work if we have the ecc bytes directly behind the + * data bytes. Applies for DOC and AG-AND Renesas HW Reed Solomon generators */ + #define NAND_HWECC_SYNDROME 0x00020000 +- ++/* Do not create an BBT if none is found. Overrides NAND_BBT_CREATE. */ ++#define NAND_DONT_CREATE_BBT 0x00040000 + + /* Options set by nand scan */ + /* Nand scan has allocated oob_buf */ |