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authorMd Sadre Alam <quic_mdalam@quicinc.com>2025-04-10 15:30:19 +0530
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-06-27 11:08:49 +0100
commit6737c4551d2be84d51b9c10beedae0ce1e5cdd39 (patch)
tree8e477835c2f0ae2f070fc3078b9163435f739668 /drivers/mtd
parentdf4918c0bb494125bb90861d6513eea908a05f6e (diff)
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mtd: rawnand: qcom: Fix read len for onfi param page
commit e6031b11544b44966ba020c867fe438bccd3bdfa upstream. 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 set nandc->buf_count = 512. Cc: stable@vger.kernel.org Fixes: 89550beb098e ("mtd: rawnand: qcom: Implement exec_op()") Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Tested-by: Lakshmi Sowjanya D <quic_laksd@quicinc.com> Signed-off-by: Md Sadre Alam <quic_mdalam@quicinc.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/nand/raw/qcom_nandc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mtd/nand/raw/qcom_nandc.c b/drivers/mtd/nand/raw/qcom_nandc.c
index b8cff9240b28..beafca6ba0df 100644
--- a/drivers/mtd/nand/raw/qcom_nandc.c
+++ b/drivers/mtd/nand/raw/qcom_nandc.c
@@ -2917,7 +2917,7 @@ 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);