[Openocd-svn] r2684 - trunk/src/target

[oharboe at B. <oh...@ma...>]

Author: oharboe
Date: 2009-09-10 15:17:05 +0200 (Thu, 10 Sep 2009)
New Revision: 2684

Modified:
   trunk/src/target/target.c
Log:
Alexei Babich <a.b...@re...> fix problems with unecessary tailend byte accesses. Use 16 bit access on tailend of a memory read if possible.

Modified: trunk/src/target/target.c
===================================================================
--- trunk/src/target/target.c	2009-09-10 08:06:22 UTC (rev 2683)
+++ trunk/src/target/target.c	2009-09-10 13:17:05 UTC (rev 2684)
@@ -1239,7 +1239,19 @@
 		address += aligned;
 		size -= aligned;
 	}
+	
+	/*prevent byte access when possible (avoid AHB access limitations in some cases)*/
+	if(size	>=2)
+	{
+		int aligned = size - (size%2);
+		retval = target_read_memory(target, address, 2, aligned / 2, buffer);
+		if (retval != ERROR_OK)
+			return retval;
 
+		buffer += aligned;
+		address += aligned;
+		size -= aligned;
+	}
 	/* handle tail writes of less than 4 bytes */
 	if (size > 0)
 	{