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mtd: nand: jz4740: remove custom 'erased check' implementation
The jz4740 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> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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cc01e6075c
commit
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1 changed files with 1 additions and 18 deletions
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@ -224,24 +224,6 @@ static int jz_nand_correct_ecc_rs(struct mtd_info *mtd, uint8_t *dat,
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uint32_t t;
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unsigned int timeout = 1000;
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t = read_ecc[0];
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if (t == 0xff) {
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for (i = 1; i < 9; ++i)
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t &= read_ecc[i];
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t &= dat[0];
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t &= dat[nand->chip.ecc.size / 2];
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t &= dat[nand->chip.ecc.size - 1];
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if (t == 0xff) {
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for (i = 1; i < nand->chip.ecc.size - 1; ++i)
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t &= dat[i];
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if (t == 0xff)
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return 0;
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}
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}
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for (i = 0; i < 9; ++i)
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writeb(read_ecc[i], nand->base + JZ_REG_NAND_PAR0 + i);
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@ -443,6 +425,7 @@ static int jz_nand_probe(struct platform_device *pdev)
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chip->ecc.size = 512;
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chip->ecc.bytes = 9;
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chip->ecc.strength = 4;
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chip->ecc.options = NAND_ECC_GENERIC_ERASED_CHECK;
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if (pdata)
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chip->ecc.layout = pdata->ecc_layout;
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