sunxi: Add sun5i support

Add support for the Allwinner A13 and A10s SoCs also know as the Allwinner
sun5i family, and the A13-OLinuXinoM A13 based and r7-tv-dongle A10s based
boards.

The only differences compared to the already supported sun4i and sun7i
families are all in the DRAM controller initialization:

-Different hcpr values
-Different MBUS settings
-Some other small initialization changes

Signed-off-by: Henrik Nordstrom <henrik@henriknordstrom.net>
Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Oliver Schinagl <oliver@schinagl.nl>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>

include/configs/sun5i.h

@@ -0,0 +1,23 @@
+/*
+ * (C) Copyright 2012-2013 Henrik Nordstrom <henrik@henriknordstrom.net>
+ *
+ * Configuration settings for the Allwinner A13 (sun5i) CPU
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+/*
+ * High Level Configuration Options
+ */
+#define CONFIG_SUN5I		/* sun5i SoC generation */
+
+#define CONFIG_SYS_PROMPT		"sun5i# "
+
+/*
+ * Include common sunxi configuration where most the settings are
+ */
+#include <configs/sunxi-common.h>
+
+#endif /* __CONFIG_H */

include/configs/sunxi-common.h

@@ -161,7 +161,9 @@
 #undef CONFIG_CMD_NET
 #undef CONFIG_CMD_NFS
 
+#ifndef CONFIG_CONS_INDEX
 #define CONFIG_CONS_INDEX              1       /* UART0 */
+#endif
 
 #ifdef CONFIG_SUNXI_GMAC
 #define CONFIG_DESIGNWARE_ETH		/* GMAC can use designware driver */