From 77e475cc0ed1832160017d364be32a0be9ff02a9 Mon Sep 17 00:00:00 2001
From: Kyungmin Park <kmpark@infradead.org>
Date: Mon, 31 Mar 2008 10:40:36 +0900
Subject: [PATCH] Fix OneNAND read
It should access with 16-bit instead of 8-bit
Now it uses the generic memcpy with 8-bit access. It means it reads wrong data from OneNAND.
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
---
drivers/mtd/onenand/onenand_base.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c
index 3b828fb627..174384eab9 100644
--- a/drivers/mtd/onenand/onenand_base.c
+++ b/drivers/mtd/onenand/onenand_base.c
@@ -20,6 +20,19 @@
#include <asm/io.h>
#include <asm/errno.h>
+/* It should access 16-bit instead of 8-bit */
+static inline void *memcpy(void *dst, const void *src, unsigned int len)
+{
+ void *ret = dst;
+ short *d = dst;
+ const short *s = src;
+
+ len >>= 1;
+ while (len-- > 0)
+ *d++ = *s++;
+ return ret;
+}
+
static const unsigned char ffchars[] = {
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 16 */