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authorIlya Yanok <yanok@emcraft.com>2008-06-30 15:34:40 +0200
committerScott Wood <scottwood@freescale.com>2008-08-12 11:31:28 -0500
commit13f0fd94e3cae6f8a0d9fba5d367e311edc8ebde (patch)
tree064eea57a4e9ac347ee028bebf8ad2ef15697573 /include
parentdfbf617ff055e4216f78d358b0867c548916d14b (diff)
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NAND: Scan bad blocks lazily.
Rather than scanning on boot, scan upon the first attempt to check the badness of a block. This speeds up boot when not using NAND, and reduces the likelihood of needing to reflash via JTAG if NAND becomes nonfunctional. Signed-off-by: Ilya Yanok <yanok@emcraft.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
Diffstat (limited to 'include')
-rw-r--r--include/linux/mtd/nand.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index f9b7d36..2993a89 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -204,6 +204,8 @@ typedef enum {
(e.g. because it needs them DMA-coherent */
#define NAND_OWN_BUFFERS 0x00040000
/* Options set by nand scan */
+/* bbt has already been read */
+#define NAND_BBT_SCANNED 0x40000000
/* Nand scan has allocated controller struct */
#define NAND_CONTROLLER_ALLOC 0x80000000