[PATCH v3 3/3] mtd: nand: gpmi: add raw oob access functions
From: Boris BREZILLON <hidden>
Date: 2014-09-23 14:07:47
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Subsystem:
memory technology devices (mtd), nand flash subsystem, the rest · Maintainers:
Miquel Raynal, Richard Weinberger, Vignesh Raghavendra, Linus Torvalds
Implement raw OOB access functions to retrieve OOB bytes when accessing the NAND in raw mode. Signed-off-by: Boris BREZILLON <redacted> --- drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
index 7921ba7..850356a 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c@@ -1471,6 +1471,22 @@ 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;
@@ -1790,6 +1806,8 @@ 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;
--
1.9.1