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mtd: nand: davinci: remove custom 'erased check' implementation

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The davinci driver is manually checking for 'erased pages' while
correcting ECC bytes.
This logic can now done by the core infrastructure, and can thus be removed
from this driver.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Tested-by: Franklin S Cooper Jr. <fcooper@ti.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
This commit is contained in:
Boris BREZILLON 2015-12-30 20:32:05 +01:00 committed by Brian Norris
parent 40cbe6eee9
commit bc29c95d2e
1 changed files with 1 additions and 8 deletions
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9
drivers/mtd/nand/davinci_nand.c
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@ -317,14 +317,6 @@ static int nand_davinci_correct_4bit(struct mtd_info *mtd,
unsigned num_errors, corrected;
unsigned long timeo;
/* All bytes 0xff? It's an erased page; ignore its ECC. */
for (i = 0; i < 10; i++) {
if (ecc_code[i] != 0xff)
goto compare;
}
return 0;
compare:
/* Unpack ten bytes into eight 10 bit values. We know we're
* little-endian, and use type punning for less shifting/masking.
*/
@ -749,6 +741,7 @@ static int nand_davinci_probe(struct platform_device *pdev)
info->chip.ecc.correct = nand_davinci_correct_4bit;
info->chip.ecc.hwctl = nand_davinci_hwctl_4bit;
info->chip.ecc.bytes = 10;
info->chip.ecc.options = NAND_ECC_GENERIC_ERASED_CHECK;
} else {
info->chip.ecc.calculate = nand_davinci_calculate_1bit;
info->chip.ecc.correct = nand_davinci_correct_1bit;