Prepare v2013.07-rc2

[karo-tx-uboot.git] / drivers / mtd / nand / nand_ecc.c

diff --git a/drivers/mtd/nand/nand_ecc.c b/drivers/mtd/nand/nand_ecc.c
index ee1f6cc8a85a98ddd136fc4c464d0ab425b2183b..097cf625b8e2fdb571f8257e878034a44da07a4c 100644 (file)
--- a/drivers/mtd/nand/nand_ecc.c
+++ b/drivers/mtd/nand/nand_ecc.c
@@ -9,8 +9,6 @@
  *
  * Copyright (C) 2006 Thomas Gleixner <tglx@linutronix.de>
  *
- * $Id: nand_ecc.c,v 1.15 2005/11/07 11:14:30 gleixner Exp $
- *
  * This file is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
  * Free Software Foundation; either version 2 or (at your option) any
@@ -39,22 +37,21 @@
 
 #include <common.h>
 
-/* XXX U-BOOT XXX */
-#if 0
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
+#include <asm/errno.h>
+#include <linux/mtd/mtd.h>
 #include <linux/mtd/nand_ecc.h>
-#endif
 
-#include<linux/mtd/mtd.h>
+/* The PPC4xx NDFC uses Smart Media (SMC) bytes order */
+#ifdef CONFIG_NAND_NDFC
+#define CONFIG_MTD_NAND_ECC_SMC
+#endif
 
 /*
  * NAND-SPL has no sofware ECC for now, so don't include nand_calculate_ecc(),
  * only nand_correct_data() is needed
  */
 
-#ifndef CONFIG_NAND_SPL
+#if !defined(CONFIG_NAND_SPL) || defined(CONFIG_SPL_NAND_SOFTECC)
 /*
  * Pre-calculated 256-way 1 byte column parity
  */
@@ -136,10 +133,6 @@ int nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
 
        return 0;
 }
-/* XXX U-BOOT XXX */
-#if 0
-EXPORT_SYMBOL(nand_calculate_ecc);
-#endif
 #endif /* CONFIG_NAND_SPL */
 
 static inline int countbits(uint32_t byte)
@@ -206,10 +199,5 @@ int nand_correct_data(struct mtd_info *mtd, u_char *dat,
        if(countbits(s0 | ((uint32_t)s1 << 8) | ((uint32_t)s2 <<16)) == 1)
                return 1;
 
-       return -1;
+       return -EBADMSG;
 }
-
-/* XXX U-BOOT XXX */
-#if 0
-EXPORT_SYMBOL(nand_correct_data);
-#endif