X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs2.git;a=blobdiff_plain;f=yaffs_ecc.c;h=9294107c150d261bbb6c90c8c78b6590ba4b97a4;hp=4f29b80da1ff06df93c537a661303b2e0b153de1;hb=18a85b88ac3ad344bbc8f2530c84e2a621d901c4;hpb=511baf572f96c689043518d443086b8dd6751089

diff --git a/yaffs_ecc.c b/yaffs_ecc.c
index 4f29b80..9294107 100644
--- a/yaffs_ecc.c
+++ b/yaffs_ecc.c
@@ -1,7 +1,7 @@
 /*
  * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
  *
- * Copyright (C) 2002-2010 Aleph One Ltd.
+ * Copyright (C) 2002-2011 Aleph One Ltd.
  *   for Toby Churchill Ltd and Brightstar Engineering
  *
  * Created by Charles Manning <charles@aleph1.co.uk>
@@ -21,6 +21,10 @@
  *
  */
 
+#include "yportenv.h"
+
+#include "yaffs_ecc.h"
+
 /* Table generated by gen-ecc.c
  * Using a table means we do not have to calculate p1..p4 and p1'..p4'
  * for each byte of data. These are instead provided in a table in bits7..2.
@@ -28,10 +32,6 @@
  * and therefore this bytes influence on the line parity.
  */
 
-#include "yportenv.h"
-
-#include "yaffs_ecc.h"
-
 static const unsigned char column_parity_table[] = {
 	0x00, 0x55, 0x59, 0x0c, 0x65, 0x30, 0x3c, 0x69,
 	0x69, 0x3c, 0x30, 0x65, 0x0c, 0x59, 0x55, 0x00,
@@ -69,7 +69,7 @@ static const unsigned char column_parity_table[] = {
 
 
 /* Calculate the ECC for a 256-byte block of data */
-void yaffs_ecc_cacl(const unsigned char *data, unsigned char *ecc)
+void yaffs_ecc_calc(const unsigned char *data, unsigned char *ecc)
 {
 	unsigned int i;
 	unsigned char col_parity = 0;
@@ -128,12 +128,6 @@ void yaffs_ecc_cacl(const unsigned char *data, unsigned char *ecc)
 		t |= 0x01;
 	ecc[0] = ~t;
 
-#ifdef CONFIG_YAFFS_ECC_WRONG_ORDER
-	/* Swap the bytes into the wrong order */
-	t = ecc[0];
-	ecc[0] = ecc[1];
-	ecc[1] = t;
-#endif
 }
 
 /* Correct the ECC on a 256 byte block of data */
@@ -158,15 +152,6 @@ int yaffs_ecc_correct(unsigned char *data, unsigned char *read_ecc,
 		unsigned byte;
 		unsigned bit;
 
-#ifdef CONFIG_YAFFS_ECC_WRONG_ORDER
-		/* swap the bytes to correct for the wrong order */
-		unsigned char t;
-
-		t = d0;
-		d0 = d1;
-		d1 = t;
-#endif
-
 		bit = byte = 0;
 
 		if (d1 & 0x80)