Messages in this thread Patch in this message |  | | From | Jane Wan <> | Subject | [PATCH 1/2] Fix FSL NAND driver to read all ONFI parameter pages | Date | Thu, 26 Apr 2018 17:19:55 -0700 |
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Signed-off-by: Jane Wan <Jane.Wan@nokia.com> --- drivers/mtd/nand/fsl_ifc_nand.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c index ca36b35..a3cf6ca 100644 --- a/drivers/mtd/nand/fsl_ifc_nand.c +++ b/drivers/mtd/nand/fsl_ifc_nand.c @@ -413,6 +413,7 @@ static void fsl_ifc_cmdfunc(struct mtd_info *mtd, unsigned int command, struct fsl_ifc_mtd *priv = chip->priv; struct fsl_ifc_ctrl *ctrl = priv->ctrl; struct fsl_ifc_runtime __iomem *ifc = ctrl->rregs; + int len; /* clear the read buffer */ ifc_nand_ctrl->read_bytes = 0; @@ -462,11 +463,12 @@ static void fsl_ifc_cmdfunc(struct mtd_info *mtd, unsigned int command, ifc_out32(column, &ifc->ifc_nand.row3); /* - * although currently it's 8 bytes for READID, we always read - * the maximum 256 bytes(for PARAM) + * For READID, read 8 bytes that are currently used. + * For PARAM, read all 3 copies of 256-bytes pages. */ - ifc_out32(256, &ifc->ifc_nand.nand_fbcr); - ifc_nand_ctrl->read_bytes = 256; + len = (command == NAND_CMD_PARAM) ? (3 * 256) : 8; + ifc_out32(len, &ifc->ifc_nand.nand_fbcr); + ifc_nand_ctrl->read_bytes = len; set_addr(mtd, 0, 0, 0); fsl_ifc_run_command(mtd); -- 1.7.9.5
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