ARM: socfpga: dts: rename socdk board file to socdk_sdmmc

Rename the socfpga_arria10_socdk board file to socfpga_arria10_socdk_sdmmc
as Arria 10 devkit cannot support SDMMC and QSPI at the same time. Thus
we will need to have 2 separate board files, one for SDMMC and one for
QSPI. We also add a new base board dtsi file, socfpga_arria10_socdk.dtsi
so that we use common peripherals for each flavor of the devkits.

Add the sdmmc node to the socfpga_arria10_socdk_sdmmc.dts board file.
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>

arch/arm/boot/dts/Makefile

@@ -496,7 +496,7 @@ dtb-$(CONFIG_ARCH_SHMOBILE_MULTI) += \
 	sh73a0-kzm9g.dtb
 dtb-$(CONFIG_ARCH_SOCFPGA) += \
 	socfpga_arria5_socdk.dtb \
-	socfpga_arria10_socdk.dtb \
+	socfpga_arria10_socdk_sdmmc.dtb \
 	socfpga_cyclone5_socdk.dtb \
 	socfpga_cyclone5_sockit.dtb \
 	socfpga_cyclone5_socrates.dtb \

arch/arm/boot/dts/socfpga_arria10_socdk.dts → arch/arm/boot/dts/socfpga_arria10_socdk.dtsi

 /*
- * Copyright (C) 2014 Altera Corporation <www.altera.com>
+ * Copyright (C) 2015 Altera Corporation <www.altera.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -14,8 +14,6 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-
-/dts-v1/;
 #include "socfpga_arria10.dtsi"
 
 / {

arch/arm/boot/dts/socfpga_arria10_socdk_sdmmc.dts

+/*
+ * Copyright (C) 2014-2015 Altera Corporation <www.altera.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/dts-v1/;
+#include "socfpga_arria10_socdk.dtsi"
+
+&mmc {
+	status = "okay";
+	num-slots = <1>;
+	broken-cd;
+	bus-width = <4>;
+};