All of lore.kernel.org
 help / color / mirror / Atom feed
* [PATCH/RFC] [MTD] Increase the MTD_MAX_ECCPOS_ENTRIES to 80
@ 2007-12-14  6:45 Kyungmin Park
  0 siblings, 0 replies; only message in thread
From: Kyungmin Park @ 2007-12-14  6:45 UTC (permalink / raw)
  To: dwmw2, linux-mtd

Hi,

Besides from the SLC flash, MLC flash s required more powerful ECC scheme than 1-bit. Usually, it used the 4-bit ECC. It means it needs more eccpos.
However the current eccpos array doesn't fit for it.

So I hope to increase this one to 80.
I'm not sure the bare NAND needs more rooms.

Any comments are welcome.

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
---
diff --git a/include/mtd/mtd-abi.h b/include/mtd/mtd-abi.h
index 5a61074..2e2f828 100644
--- a/include/mtd/mtd-abi.h
+++ b/include/mtd/mtd-abi.h
@@ -114,13 +114,14 @@ struct nand_oobfree {
 };
 
 #define MTD_MAX_OOBFREE_ENTRIES	8
+#define MTD_MAX_ECCPOS_ENTRIES	80
 /*
  * ECC layout control structure. Exported to userspace for
  * diagnosis and to allow creation of raw images
  */
 struct nand_ecclayout {
 	uint32_t eccbytes;
-	uint32_t eccpos[64];
+	uint32_t eccpos[MTD_MAX_ECCPOS_ENTRIES];
 	uint32_t oobavail;
 	struct nand_oobfree oobfree[MTD_MAX_OOBFREE_ENTRIES];
 };

^ permalink raw reply related	[flat|nested] only message in thread

only message in thread, other threads:[~2007-12-14  6:45 UTC | newest]

Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2007-12-14  6:45 [PATCH/RFC] [MTD] Increase the MTD_MAX_ECCPOS_ENTRIES to 80 Kyungmin Park

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.