mtd: nand: gpmi: add raw oob access functions
Implement raw OOB access functions to retrieve OOB bytes when accessing the
NAND in raw mode.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Tested-by: Huang Shijie <shijie8@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
index 987de1e..4f3851a 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
@@ -1528,6 +1528,22 @@
return 0;
}
+static int gpmi_ecc_read_oob_raw(struct mtd_info *mtd, struct nand_chip *chip,
+ int page)
+{
+ chip->cmdfunc(mtd, NAND_CMD_READ0, 0, page);
+
+ return gpmi_ecc_read_page_raw(mtd, chip, NULL, 1, page);
+}
+
+static int gpmi_ecc_write_oob_raw(struct mtd_info *mtd, struct nand_chip *chip,
+ int page)
+{
+ chip->cmdfunc(mtd, NAND_CMD_SEQIN, 0, page);
+
+ return gpmi_ecc_write_page_raw(mtd, chip, NULL, 1);
+}
+
static int gpmi_block_markbad(struct mtd_info *mtd, loff_t ofs)
{
struct nand_chip *chip = mtd->priv;
@@ -1847,6 +1863,8 @@
ecc->write_oob = gpmi_ecc_write_oob;
ecc->read_page_raw = gpmi_ecc_read_page_raw;
ecc->write_page_raw = gpmi_ecc_write_page_raw;
+ ecc->read_oob_raw = gpmi_ecc_read_oob_raw;
+ ecc->write_oob_raw = gpmi_ecc_write_oob_raw;
ecc->mode = NAND_ECC_HW;
ecc->size = bch_geo->ecc_chunk_size;
ecc->strength = bch_geo->ecc_strength;