From e0a02bbd2ce18f457a5046425cf4555294c03e02 Mon Sep 17 00:00:00 2001
From: Gregory Nutt <gnutt@nuttx.org>
Date: Mon, 18 Nov 2013 09:43:44 -0600
Subject: [PATCH] MTD NAND:  Beginning of software ECC logic

---
 arch/arm/src/sama5/sam_nand.h | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/arch/arm/src/sama5/sam_nand.h b/arch/arm/src/sama5/sam_nand.h
index 2bef90554fb..fc48123687d 100644
--- a/arch/arm/src/sama5/sam_nand.h
+++ b/arch/arm/src/sama5/sam_nand.h
@@ -42,12 +42,29 @@
 
 #include <nuttx/config.h>
 
+#include <nuttx/mtd/nand_raw.h>
+
 #include "chip.h"
 #include "chip/sam_hsmc.h"
 
 /****************************************************************************
  * Pre-processor Definitions
  ****************************************************************************/
+/* Hardware ECC types.  These are extensions to the NANDECC_HWECC value
+ * defined in include/nuttx/mtd/nand_raw.h.
+ *
+ *   NANDECC_CHIPECC ECC is performed internal to chip
+ *   NANDECC_PMECC   Programmable Multibit Error Correcting Code (PMECC)
+ *   NANDECC_HSIAO   HSIAO ECC
+ */
+
+#define NANDECC_CHIPECC (NANDECC_HWECC + 0)
+#define NANDECC_PMECC   (NANDECC_HWECC + 1)
+#define NANDECC_HSIAO   (NANDECC_HWECC + 2)
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
 
 #ifndef __ASSEMBLY__