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- From 0e75433962d619e4f9dcab57643223d85db0b880 Mon Sep 17 00:00:00 2001
- From: John Crispin <[email protected]>
- Date: Sun, 28 Jul 2013 17:59:51 +0200
- Subject: [PATCH 18/34] MTD: lantiq: xway: add missing write_buf and read_buf
- to nand driver
- Signed-off-by: John Crispin <[email protected]>
- ---
- drivers/mtd/nand/xway_nand.c | 28 ++++++++++++++++++++++++++++
- 1 file changed, 28 insertions(+)
- diff --git a/drivers/mtd/nand/xway_nand.c b/drivers/mtd/nand/xway_nand.c
- index 8d14f1b..f813a55 100644
- --- a/drivers/mtd/nand/xway_nand.c
- +++ b/drivers/mtd/nand/xway_nand.c
- @@ -136,6 +136,32 @@ static unsigned char xway_read_byte(struct mtd_info *mtd)
- return ret;
- }
-
- +static void xway_read_buf(struct mtd_info *mtd, u_char *buf, int len)
- +{
- + struct nand_chip *this = mtd->priv;
- + unsigned long nandaddr = (unsigned long) this->IO_ADDR_R;
- + unsigned long flags;
- + int i;
- +
- + spin_lock_irqsave(&ebu_lock, flags);
- + for (i = 0; i < len; i++)
- + buf[i] = ltq_r8((void __iomem *)(nandaddr | NAND_READ_DATA));
- + spin_unlock_irqrestore(&ebu_lock, flags);
- +}
- +
- +static void xway_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
- +{
- + struct nand_chip *this = mtd->priv;
- + unsigned long nandaddr = (unsigned long) this->IO_ADDR_W;
- + unsigned long flags;
- + int i;
- +
- + spin_lock_irqsave(&ebu_lock, flags);
- + for (i = 0; i < len; i++)
- + ltq_w8(buf[i], (void __iomem *)nandaddr);
- + spin_unlock_irqrestore(&ebu_lock, flags);
- +}
- +
- static int xway_nand_probe(struct platform_device *pdev)
- {
- struct nand_chip *this = platform_get_drvdata(pdev);
- @@ -181,6 +207,8 @@ static struct platform_nand_data xway_nand_data = {
- .dev_ready = xway_dev_ready,
- .select_chip = xway_select_chip,
- .read_byte = xway_read_byte,
- + .read_buf = xway_read_buf,
- + .write_buf = xway_write_buf,
- }
- };
-
- --
- 1.7.10.4
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