[PATCH 2/3] mtd: nand: mxc: Add own write_page

[Sascha Hauer]

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.

Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
 drivers/mtd/nand/mxc_nand.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c
index 65d5cde4692b..a54804f14bb1 100644
--- a/drivers/mtd/nand/mxc_nand.c
+++ b/drivers/mtd/nand/mxc_nand.c
@@ -142,6 +142,8 @@ struct mxc_nand_devtype_data {
 	void (*preset)(struct mtd_info *);
 	int (*read_page)(struct mtd_info *mtd, struct nand_chip *chip,
 			uint8_t *buf, int oob_required, int page);
+	int (*write_page)(struct mtd_info *mtd, struct nand_chip *chip,
+			  const uint8_t *buf, int oob_required, int page);
 	void (*send_cmd)(struct mxc_nand_host *, uint16_t, int);
 	void (*send_addr)(struct mxc_nand_host *, uint16_t, int);
 	void (*send_page)(struct mtd_info *, unsigned int);
@@ -658,6 +660,17 @@ static int mxc_nand_read_page_hwecc_v2_v3(struct mtd_info *mtd,
 	return max_bitflips;
 }
 
+static int mxc_nand_write_page_hwecc_v2_v3(struct mtd_info *mtd,
+					   struct nand_chip *chip,
+					   const uint8_t *buf, int oob_required,
+					   int page)
+{
+	chip->write_buf(mtd, buf, mtd->writesize);
+	chip->write_buf(mtd, chip->oob_poi, mtd->oobsize);
+
+	return 0;
+}
+
 static int mxc_nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
 				  u_char *ecc_code)
 {
@@ -1456,6 +1469,7 @@ static const struct mxc_nand_devtype_data imx27_nand_devtype_data = {
 static const struct mxc_nand_devtype_data imx25_nand_devtype_data = {
 	.preset = preset_v2,
 	.read_page = mxc_nand_read_page_hwecc_v2_v3,
+	.write_page = mxc_nand_write_page_hwecc_v2_v3,
 	.send_cmd = send_cmd_v1_v2,
 	.send_addr = send_addr_v1_v2,
 	.send_page = send_page_v2,
@@ -1482,6 +1496,7 @@ static const struct mxc_nand_devtype_data imx25_nand_devtype_data = {
 static const struct mxc_nand_devtype_data imx51_nand_devtype_data = {
 	.preset = preset_v3,
 	.read_page = mxc_nand_read_page_hwecc_v2_v3,
+	.write_page = mxc_nand_write_page_hwecc_v2_v3,
 	.send_cmd = send_cmd_v3,
 	.send_addr = send_addr_v3,
 	.send_page = send_page_v3,
@@ -1508,6 +1523,7 @@ static const struct mxc_nand_devtype_data imx51_nand_devtype_data = {
 static const struct mxc_nand_devtype_data imx53_nand_devtype_data = {
 	.preset = preset_v3,
 	.read_page = mxc_nand_read_page_hwecc_v2_v3,
+	.write_page = mxc_nand_write_page_hwecc_v2_v3,
 	.send_cmd = send_cmd_v3,
 	.send_addr = send_addr_v3,
 	.send_page = send_page_v3,
@@ -1766,6 +1782,7 @@ static int mxcnd_probe(struct platform_device *pdev)
 	switch (this->ecc.mode) {
 	case NAND_ECC_HW:
 		this->ecc.read_page = host->devtype_data->read_page;
+		this->ecc.write_page = host->devtype_data->write_page;
 		this->ecc.calculate = mxc_nand_calculate_ecc;
 		this->ecc.hwctl = mxc_nand_enable_hwecc;
 		this->ecc.correct = host->devtype_data->correct_data;
-- 
2.11.0