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mtd: nand: mxc: Add own write_page

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Now that we have our own read_page function add a write_page function
for consistency aswell. This can be a lot easier than the generic
function since we do not have to iterate over subpages but can write
the whole page at once. Also add write_page_raw and write_oob for
proper raw and oob write support.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
This commit is contained in:
Sascha Hauer 2018-01-17 12:32:11 +01:00 committed by Boris Brezillon
parent 5039fc9f2d
commit 6811c4642a
1 changed files with 47 additions and 0 deletions
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47
drivers/mtd/nand/mxc_nand.c
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@ -890,6 +890,50 @@ static int mxc_nand_read_oob(struct mtd_info *mtd, struct nand_chip *chip,
page);
}
static int mxc_nand_write_page(struct nand_chip *chip, const uint8_t *buf,
bool ecc, int page)
{
struct mtd_info *mtd = nand_to_mtd(chip);
struct mxc_nand_host *host = nand_get_controller_data(chip);
host->devtype_data->enable_hwecc(chip, ecc);
host->devtype_data->send_cmd(host, NAND_CMD_SEQIN, false);
mxc_do_addr_cycle(mtd, 0, page);
memcpy32_toio(host->main_area0, buf, mtd->writesize);
copy_spare(mtd, false, chip->oob_poi);
host->devtype_data->send_page(mtd, NFC_INPUT);
host->devtype_data->send_cmd(host, NAND_CMD_PAGEPROG, true);
mxc_do_addr_cycle(mtd, 0, page);
return 0;
}
static int mxc_nand_write_page_ecc(struct mtd_info *mtd, struct nand_chip *chip,
const uint8_t *buf, int oob_required,
int page)
{
return mxc_nand_write_page(chip, buf, true, page);
}
static int mxc_nand_write_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
const uint8_t *buf, int oob_required, int page)
{
return mxc_nand_write_page(chip, buf, false, page);
}
static int mxc_nand_write_oob(struct mtd_info *mtd, struct nand_chip *chip,
int page)
{
struct mxc_nand_host *host = nand_get_controller_data(chip);
memset(host->data_buf, 0xff, mtd->writesize);
return mxc_nand_write_page(chip, host->data_buf, false, page);
}
static int mxc_nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
u_char *ecc_code)
{
@ -1904,6 +1948,9 @@ static int mxcnd_probe(struct platform_device *pdev)
this->ecc.read_page = mxc_nand_read_page;
this->ecc.read_page_raw = mxc_nand_read_page_raw;
this->ecc.read_oob = mxc_nand_read_oob;
this->ecc.write_page = mxc_nand_write_page_ecc;
this->ecc.write_page_raw = mxc_nand_write_page_raw;
this->ecc.write_oob = mxc_nand_write_oob;
this->ecc.calculate = mxc_nand_calculate_ecc;
this->ecc.hwctl = mxc_nand_enable_hwecc;
this->ecc.correct = host->devtype_data->correct_data;