sunxi: Add sun4i support

Add support for the Allwinner A10 SoC also known as the Allwinner sun4i family,
and add the Cubieboard board which uses the A10 SoC.

Compared to sun7 only the DRAM controller is a bit different:
-Controller reset bits are inverted, but only for Rev. A
-Different hpcr values
-No MBUS on sun4i
-Various other 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>

2 files changed, 32 insertions, 0 deletions

diff --git a/board/sunxi/Makefile b/board/sunxi/Makefile
index cbf8f08..4902d70 100644
--- a/board/sunxi/Makefile
+++ b/board/sunxi/Makefile
@@ -10,4 +10,5 @@
 #
 obj-y	+= board.o
 obj-$(CONFIG_SUNXI_GMAC)	+= gmac.o
+obj-$(CONFIG_CUBIEBOARD)	+= dram_cubieboard.o
 obj-$(CONFIG_CUBIETRUCK)	+= dram_cubietruck.o
diff --git a/board/sunxi/dram_cubieboard.c b/board/sunxi/dram_cubieboard.c
new file mode 100644
index 0000000..399028c
--- /dev/null
+++ b/board/sunxi/dram_cubieboard.c
@@ -0,0 +1,31 @@
+/* this file is generated, don't edit it yourself */
+
+#include <common.h>
+#include <asm/arch/dram.h>
+
+static struct dram_para dram_para = {
+	.clock = 480,
+	.type = 3,
+	.rank_num = 1,
+	.density = 4096,
+	.io_width = 16,
+	.bus_width = 32,
+	.cas = 6,
+	.zq = 123,
+	.odt_en = 0,
+	.size = 1024,
+	.tpr0 = 0x30926692,
+	.tpr1 = 0x1090,
+	.tpr2 = 0x1a0c8,
+	.tpr3 = 0,
+	.tpr4 = 0,
+	.tpr5 = 0,
+	.emr1 = 0,
+	.emr2 = 0,
+	.emr3 = 0,
+};
+
+unsigned long sunxi_dram_init(void)
+{
+	return dramc_init(&dram_para);
+}