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	This reverts commit 4fee6c2f295f932b8febdc7ce8731ba045695fa5. It breaks boards that currently rely on soft-ecc, as pointed out here: http://patchwork.ozlabs.org/patch/140872/ The reverted patch should be resubmitted with documentation, and with the CONFIG_MTD_ECC_SOFT selected from every board that needs it. We could start by looking at what NAND driver the board selects, and whether that driver ever asks for soft ECC. Signed-off-by: Scott Wood <scottwood@freescale.com>
		
			
				
	
	
		
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			29 lines
		
	
	
		
			748 B
		
	
	
	
		
			C
		
	
	
	
	
	
/*
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 *  drivers/mtd/nand_ecc.h
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 *
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 *  Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com)
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License version 2 as
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 * published by the Free Software Foundation.
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 *
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 * This file is the header for the ECC algorithm.
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 */
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#ifndef __MTD_NAND_ECC_H__
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#define __MTD_NAND_ECC_H__
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struct mtd_info;
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/*
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 * Calculate 3 byte ECC code for 256 byte block
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 */
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int nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code);
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/*
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 * Detect and correct a 1 bit error for 256 byte block
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 */
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int nand_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc);
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#endif /* __MTD_NAND_ECC_H__ */
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