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path: root/target/linux/ramips/patches-2.6.37/011-mtd-cfi_cmdset_0002-force-word-write.patch
blob: 8e93b10aa517f818504ffd914ee843555172b83e (plain)
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--- a/drivers/mtd/chips/cfi_cmdset_0002.c
+++ b/drivers/mtd/chips/cfi_cmdset_0002.c
@@ -39,7 +39,7 @@
 #include <linux/mtd/xip.h>
 
 #define AMD_BOOTLOC_BUG
-#define FORCE_WORD_WRITE 0
+#define FORCE_WORD_WRITE 1
 
 #define MAX_WORD_RETRIES 3
 
@@ -50,7 +50,9 @@
 
 static int cfi_amdstd_read (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
 static int cfi_amdstd_write_words(struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
+#if !FORCE_WORD_WRITE
 static int cfi_amdstd_write_buffers(struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
+#endif
 static int cfi_amdstd_erase_chip(struct mtd_info *, struct erase_info *);
 static int cfi_amdstd_erase_varsize(struct mtd_info *, struct erase_info *);
 static void cfi_amdstd_sync (struct mtd_info *);
@@ -186,6 +188,7 @@ static void fixup_amd_bootblock(struct m
 }
 #endif
 
+#if !FORCE_WORD_WRITE
 static void fixup_use_write_buffers(struct mtd_info *mtd, void *param)
 {
 	struct map_info *map = mtd->priv;
@@ -195,6 +198,7 @@ static void fixup_use_write_buffers(stru
 		mtd->write = cfi_amdstd_write_buffers;
 	}
 }
+#endif /* !FORCE_WORD_WRITE */
 
 /* Atmel chips don't use the same PRI format as AMD chips */
 static void fixup_convert_atmel_pri(struct mtd_info *mtd, void *param)
@@ -472,7 +476,7 @@ struct mtd_info *cfi_cmdset_0002(struct 
 
 			/*
 			 * Valid primary extension versions are: 1.0, 1.1, 1.2, 1.3, 1.4
- 			 * see: Spec 1.3 http://cs.ozerki.net/zap/pub/axim-x5/docs/cfi_r20.pdf, page 19 
+ 			 * see: Spec 1.3 http://cs.ozerki.net/zap/pub/axim-x5/docs/cfi_r20.pdf, page 19
  			 *               http://www.spansion.com/Support/AppNotes/cfi_100_20011201.pdf
 			 *      Spec 1.4 http://www.spansion.com/Support/AppNotes/CFI_Spec_AN_03.pdf, page 9
 			 */
@@ -1386,6 +1390,7 @@ static int cfi_amdstd_write_words(struct
 /*
  * FIXME: interleaved mode not tested, and probably not supported!
  */
+#if !FORCE_WORD_WRITE
 static int __xipram do_write_buffer(struct map_info *map, struct flchip *chip,
 				    unsigned long adr, const u_char *buf,
 				    int len)
@@ -1496,7 +1501,6 @@ static int __xipram do_write_buffer(stru
 	return ret;
 }
 
-
 static int cfi_amdstd_write_buffers(struct mtd_info *mtd, loff_t to, size_t len,
 				    size_t *retlen, const u_char *buf)
 {
@@ -1575,6 +1579,7 @@ static int cfi_amdstd_write_buffers(stru
 
 	return 0;
 }
+#endif /* !FORCE_WORD_WRITE */
 
 
 /*