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mtd: nand: add __nand_correct_data helper function

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Split nand_correct_data() into two part, a pure calculation function
and a wrapper for mtd interface.

The tmio_nand driver can implement its ecc.correct function easily
using this __nand_correct_data helper.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Acked-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Acked-by: Vimal Singh <vimalsingh@ti.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
Atsushi Nemoto
2009-09-05 01:20:43 +09:00
committed by David Woodhouse
parent 23af51ecfb
commit be2f092bfc
2 changed files with 30 additions and 7 deletions
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6
include/linux/mtd/nand_ecc.h
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@ -20,6 +20,12 @@ struct mtd_info;
*/
int nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code);
/*
* Detect and correct a 1 bit error for eccsize byte block
*/
int __nand_correct_data(u_char *dat, u_char *read_ecc, u_char *calc_ecc,
unsigned int eccsize);
/*
* Detect and correct a 1 bit error for 256 byte block
*/