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Merge branch 'master' of git://git.denx.de/u-boot-nand-flash

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This commit is contained in:
Wolfgang Denk 2010-09-15 22:06:32 +02:00
commit a12555c02d
1 changed files with 14 additions and 1 deletions
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13
drivers/mtd/nand/davinci_nand.c
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@ -483,6 +483,19 @@ static int nand_davinci_4bit_correct_data(struct mtd_info *mtd, uint8_t *dat,
*/
__raw_writel(1 << 13, &davinci_emif_regs->nandfcr);
/*
* Wait for the corr_state field (bits 8 to 11) in the
* NAND Flash Status register to be not equal to 0x0, 0x1, 0x2, or 0x3.
* Otherwise ECC calculation has not even begun and the next loop might
* fail because of a false positive!
*/
i = NAND_TIMEOUT;
do {
val = __raw_readl(&davinci_emif_regs->nandfsr);
val &= 0xc00;
i--;
} while ((i > 0) && !val);
/*
* Wait for the corr_state field (bits 8 to 11) in the
* NAND Flash Status register to be equal to 0x0, 0x1, 0x2, or 0x3.