1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
From 6f5bf300afa3c6f41a973fb3f39827db59512343 Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Sun, 28 Jul 2013 17:59:51 +0200
Subject: [PATCH 16/31] 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(+)
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
|
