ARM: sunxi: Add basic A31 support

Add a new sun6i machine that supports UART and MMC.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
[wens@csie.org: use SPDX labels, adapt to Kconfig system, drop ifdef
		around mmc and smp code, drop MACH_TYPE]
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Ian Campbell <ijc@hellion.org.uk>

arch/arm/Kconfig

@@ -450,6 +450,9 @@ config TARGET_SUN4I
 config TARGET_SUN5I
 	bool "Support sun5i"
 
+config TARGET_SUN6I
+	bool "Support sun6i"
+
 config TARGET_SUN7I
 	bool "Support sun7i"
 

arch/arm/cpu/armv7/sunxi/cpu_info.c

@@ -23,6 +23,8 @@ int print_cpuinfo(void)
 	case 7: puts("CPU:   Allwinner A10s (SUN5I)\n"); break;
 	default: puts("CPU:   Allwinner A1X (SUN5I)\n");
 	}
+#elif defined CONFIG_SUN6I
+	puts("CPU:   Allwinner A31 (SUN6I)\n");
 #elif defined CONFIG_SUN7I
 	puts("CPU:   Allwinner A20 (SUN7I)\n");
 #else

board/sunxi/Kconfig

@@ -12,6 +12,14 @@ config SYS_CONFIG_NAME
 
 endif
 
+if TARGET_SUN6I
+
+config SYS_CONFIG_NAME
+	string
+	default "sun6i"
+
+endif
+
 if TARGET_SUN7I
 
 config SYS_CONFIG_NAME
@@ -19,7 +27,7 @@ config SYS_CONFIG_NAME
 
 endif
 
-if TARGET_SUN4I || TARGET_SUN5I || TARGET_SUN7I
+if TARGET_SUN4I || TARGET_SUN5I || TARGET_SUN6I || TARGET_SUN7I
 
 config SYS_CPU
 	default "armv7"

include/configs/sun6i.h

+/*
+ * (C) Copyright 2012-2013 Henrik Nordstrom <henrik@henriknordstrom.net>
+ * (C) Copyright 2013 Luke Kenneth Casson Leighton <lkcl@lkcl.net>
+ * (C) Copyright 2013 Maxime Ripard <maxime.ripard@free-electrons.com>
+ *
+ * Configuration settings for the Allwinner A31 (sun6i) CPU
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+/*
+ * A31 specific configuration
+ */
+#define CONFIG_SUN6I		/* sun6i SoC generation */
+
+#define CONFIG_SYS_PROMPT		"sun6i# "
+
+/*
+ * Include common sunxi configuration where most the settings are
+ */
+#include <configs/sunxi-common.h>
+
+#endif /* __CONFIG_H */