On Fri, Nov 22, 2024 at 02:29:33PM +0530, Md Sadre Alam wrote:
> 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.
s/setting/set
>
> Cc: stable@xxxxxxxxxxxxxxx
> Fixes: 89550beb098e ("mtd: rawnand: qcom: Implement exec_op()")
> Signed-off-by: Md Sadre Alam <quic_mdalam@xxxxxxxxxxx>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
- Mani
> ---
>
> 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
>
--
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