Commit 48bf35de authored by Boris BREZILLON's avatar Boris BREZILLON Committed by Brian Norris

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: default avatarBoris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: default avatarBrian Norris <computersforpeace@gmail.com>
parent cc01e607
...@@ -224,24 +224,6 @@ static int jz_nand_correct_ecc_rs(struct mtd_info *mtd, uint8_t *dat, ...@@ -224,24 +224,6 @@ static int jz_nand_correct_ecc_rs(struct mtd_info *mtd, uint8_t *dat,
uint32_t t; uint32_t t;
unsigned int timeout = 1000; unsigned int timeout = 1000;
t = read_ecc[0];
if (t == 0xff) {
for (i = 1; i < 9; ++i)
t &= read_ecc[i];
t &= dat[0];
t &= dat[nand->chip.ecc.size / 2];
t &= dat[nand->chip.ecc.size - 1];
if (t == 0xff) {
for (i = 1; i < nand->chip.ecc.size - 1; ++i)
t &= dat[i];
if (t == 0xff)
return 0;
}
}
for (i = 0; i < 9; ++i) for (i = 0; i < 9; ++i)
writeb(read_ecc[i], nand->base + JZ_REG_NAND_PAR0 + i); writeb(read_ecc[i], nand->base + JZ_REG_NAND_PAR0 + i);
...@@ -443,6 +425,7 @@ static int jz_nand_probe(struct platform_device *pdev) ...@@ -443,6 +425,7 @@ static int jz_nand_probe(struct platform_device *pdev)
chip->ecc.size = 512; chip->ecc.size = 512;
chip->ecc.bytes = 9; chip->ecc.bytes = 9;
chip->ecc.strength = 4; chip->ecc.strength = 4;
chip->ecc.options = NAND_ECC_GENERIC_ERASED_CHECK;
if (pdata) if (pdata)
chip->ecc.layout = pdata->ecc_layout; chip->ecc.layout = pdata->ecc_layout;
......
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