The minimum size to fetch the data from device to QPIC buffer
is 512-bytes. If size is less than 512-bytes the data will not be
protected by ECC as per QPIC standard. So while reading onfi parameter
page from NAND device setting nandc->buf_count = 512.
Cc: stable@xxxxxxxxxxxxxxx
Fixes: 89550beb098e ("mtd: rawnand: qcom: Implement exec_op()")
Signed-off-by: Md Sadre Alam <quic_mdalam@xxxxxxxxxxx>
---
Change in [v2]
* Set buf_count to 512 in the parameter page read
Change in [v1]
* This patch was not included in v1
drivers/mtd/nand/raw/qcom_nandc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mtd/nand/raw/qcom_nandc.c b/drivers/mtd/nand/raw/qcom_nandc.c
index 31ec3db1246d..e1dca4857754 100644
--- a/drivers/mtd/nand/raw/qcom_nandc.c
+++ b/drivers/mtd/nand/raw/qcom_nandc.c
@@ -2926,7 +2926,7 @@ static int qcom_param_page_type_exec(struct nand_chip *chip, const struct nand_
write_reg_dma(nandc, NAND_DEV_CMD1, 1, NAND_BAM_NEXT_SGL);
}
- nandc->buf_count = len;
+ nandc->buf_count = 512;
memset(nandc->data_buffer, 0xff, nandc->buf_count);
config_nand_single_cw_page_read(chip, false, 0);
--
2.34.1
