diff options
| author | T Karthik Reddy <t.karthik.reddy@xilinx.com> | 2020-01-19 23:59:23 -0700 |
|---|---|---|
| committer | Michal Simek <michal.simek@xilinx.com> | 2020-02-28 12:04:10 +0100 |
| commit | 4c2c28a46571498c55b38d988ace3d176368ed6b (patch) | |
| tree | e7f91dd1c83f14efeebaa6a5b6fdec089f571c9f /drivers/mtd/nand/raw | |
| parent | 65bcca9f52af8ff88d46de317a9ca6e8a2da5d69 (diff) | |
mtd: nand: Fix on-die ecc issues in arasan_nfc driver
Fixed wrong enumeration of nand_config structure. Added chip select
function before reading the nand chip for maf/dev id's, without this
unable to access id's from some of the micron chips. Also added a
print statement to identify if a nand flash is using on-die ecc.
Signed-off-by: T Karthik Reddy <t.karthik.reddy@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Diffstat (limited to 'drivers/mtd/nand/raw')
| -rw-r--r-- | drivers/mtd/nand/raw/arasan_nfc.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/mtd/nand/raw/arasan_nfc.c b/drivers/mtd/nand/raw/arasan_nfc.c index d1b1a4263a..110c32b396 100644 --- a/drivers/mtd/nand/raw/arasan_nfc.c +++ b/drivers/mtd/nand/raw/arasan_nfc.c @@ -1120,12 +1120,15 @@ static void arasan_nand_cmd_function(struct mtd_info *mtd, unsigned int command, static void arasan_check_ondie(struct mtd_info *mtd) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct nand_config *nand = nand_get_controller_data(nand_chip); + struct nand_drv *info = nand_get_controller_data(nand_chip); + struct nand_config *nand = &info->config; u8 maf_id, dev_id; u8 get_feature[4]; u8 set_feature[4] = {ENABLE_ONDIE_ECC, 0x00, 0x00, 0x00}; u32 i; + nand_chip->select_chip(mtd, 0); + /* Send the command for reading device ID */ nand_chip->cmdfunc(mtd, NAND_CMD_RESET, -1, -1); nand_chip->cmdfunc(mtd, NAND_CMD_READID, 0, -1); @@ -1150,10 +1153,12 @@ static void arasan_check_ondie(struct mtd_info *mtd) for (i = 0; i < 4; i++) get_feature[i] = nand_chip->read_byte(mtd); - if (get_feature[0] & ENABLE_ONDIE_ECC) + if (get_feature[0] & ENABLE_ONDIE_ECC) { nand->on_die_ecc_enabled = true; - else + printf("On-DIE ECC Enabled\n"); + } else { printf("%s: Unable to enable OnDie ECC\n", __func__); + } /* Use the BBT pattern descriptors */ nand_chip->bbt_td = &bbt_main_descr; |