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