56 lines
1.6 KiB
Diff
56 lines
1.6 KiB
Diff
From 0e75433962d619e4f9dcab57643223d85db0b880 Mon Sep 17 00:00:00 2001
|
|
From: John Crispin <blogic@openwrt.org>
|
|
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 <blogic@openwrt.org>
|
|
---
|
|
drivers/mtd/nand/xway_nand.c | 28 ++++++++++++++++++++++++++++
|
|
1 file changed, 28 insertions(+)
|
|
|
|
--- a/drivers/mtd/nand/xway_nand.c
|
|
+++ b/drivers/mtd/nand/xway_nand.c
|
|
@@ -136,6 +136,32 @@ static unsigned char xway_read_byte(stru
|
|
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_na
|
|
.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,
|
|
}
|
|
};
|
|
|