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authorBoris BREZILLON <boris.brezillon@free-electrons.com>2014-11-30 19:10:30 +0100
committerBrian Norris <computersforpeace@gmail.com>2014-12-01 00:41:50 -0800
commit7ca94e07fe8ccbaca9ecb59f388ab8dd93c73e88 (patch)
treead1b92f1e6dcfde6c5c97034a1418430325758ad /drivers/mtd
parentda3bc42c1becfde026656df50ad155239d4e1a6b (diff)
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>
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/nand/gpmi-nand/gpmi-nand.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
index 987de1e3821c..4f3851a24bb2 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
@@ -1528,6 +1528,22 @@ static int gpmi_ecc_write_page_raw(struct mtd_info *mtd,
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 @@ static int gpmi_init_last(struct gpmi_nand_data *this)
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;