* [PATCH/RFC] [MTD] Increase the MTD_MAX_ECCPOS_ENTRIES to 80
@ 2007-12-14 6:45 Kyungmin Park
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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];
};
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