From 121c00036df53d4c507280fbf53432ae6269615c Mon Sep 17 00:00:00 2001
From: Gregory Nutt <gnutt@nuttx.org>
Date: Mon, 21 Jul 2014 17:46:35 -0600
Subject: [PATCH] SAMA5D4 XDMAC: Never sets a channel as secure.  Will probably
 have to revisit this

---
 arch/arm/src/sama5/sam_xdmac.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/src/sama5/sam_xdmac.c b/arch/arm/src/sama5/sam_xdmac.c
index 1f1da87e531..c59e7bdb9f4 100644
--- a/arch/arm/src/sama5/sam_xdmac.c
+++ b/arch/arm/src/sama5/sam_xdmac.c
@@ -1067,9 +1067,11 @@ static inline uint32_t sam_txcc(struct sam_xdmach_s *xdmach)
 
   regval |= XDMACH_CC_DSYNC;
 
+#if 0 /* REVISIT */
   /* 5. Set PROT to activate a secure channel (REVISIT). */
 
   regval |= XDMACH_CC_PROT; /* Channel is unsecured */
+#endif
 
   /* 6. Program CSIZE to configure the channel chunk size (only
    *    relevant for peripheral synchronized transfer).
@@ -1223,9 +1225,11 @@ static inline uint32_t sam_rxcc(struct sam_xdmach_s *xdmach)
    * RX -> Peripheral to memory (DSYNC == 0)
    */
 
+#if 0 /* REVISIT */
   /* 5. Set PROT to activate a secure channel (REVISIT) */
 
   regval |= XDMACH_CC_PROT; /* Channel is unsecured */
+#endif
 
   /* 6. Program CSIZE to configure the channel chunk size (only
    *    relevant for peripheral synchronized transfer).