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authorBoris BREZILLON <boris.brezillon@free-electrons.com>2015-12-30 20:41:29 +0100
committerBrian Norris <computersforpeace@gmail.com>2016-01-06 18:54:08 -0800
commit48bf35de3133996fbac2be16430cd4ea00fa8d38 (patch)
tree7c8c4dae2b8e6747f5c78a93d2250e7f2e2bb4c3 /drivers/mtd
parentcc01e6075c7f5fee72746bb0ec763b84a46c3778 (diff)
downloadlinux-48bf35de3133996fbac2be16430cd4ea00fa8d38.tar.bz2
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>
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/nand/jz4740_nand.c19
1 files changed, 1 insertions, 18 deletions
diff --git a/drivers/mtd/nand/jz4740_nand.c b/drivers/mtd/nand/jz4740_nand.c
index adccae3da120..b19d2a9a5eb9 100644
--- a/drivers/mtd/nand/jz4740_nand.c
+++ b/drivers/mtd/nand/jz4740_nand.c
@@ -224,24 +224,6 @@ static int jz_nand_correct_ecc_rs(struct mtd_info *mtd, uint8_t *dat,
uint32_t t;
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)
writeb(read_ecc[i], nand->base + JZ_REG_NAND_PAR0 + i);
@@ -443,6 +425,7 @@ static int jz_nand_probe(struct platform_device *pdev)
chip->ecc.size = 512;
chip->ecc.bytes = 9;
chip->ecc.strength = 4;
+ chip->ecc.options = NAND_ECC_GENERIC_ERASED_CHECK;
if (pdata)
chip->ecc.layout = pdata->ecc_layout;