stv0991: fdt: add stv0991 device tree

This patch adds device tree for the ST Micro stv0991 board & enables
device tree control. Progressively device tree support for the drivers
being used will also be added.

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

arch/arm/dts/Makefile

@@ -53,6 +53,7 @@ dtb-$(CONFIG_ARCH_SOCFPGA) +=				\
 	socfpga_arria5_socdk.dtb			\
 	socfpga_cyclone5_socdk.dtb			\
 	socfpga_cyclone5_socrates.dtb
+dtb-$(CONFIG_TARGET_STV0991) += stv0991.dtb
 
 dtb-$(CONFIG_LS102XA) += ls1021a-qds.dtb \
 	ls1021a-twr.dtb

arch/arm/dts/stv0991.dts

+/dts-v1/;
+
+/ {
+	model = "ST STV0991 application board";
+	compatible = "st,stv0991";
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	chosen {
+		stdout-path = &uart0;
+	};
+
+	memory {
+		device_type="memory";
+		reg = <0x0 0x198000>;
+	};
+
+	uart0: serial@0x80406000 {
+		compatible = "arm,pl011", "arm,primecell";
+		reg = <0x80406000 0x1000>;
+		clock = <2700000>;
+	};
+};

configs/stv0991_defconfig

@@ -5,3 +5,4 @@ CONFIG_SYS_MALLOC_F_LEN=0x2000
 CONFIG_ETH_DESIGNWARE=y
 CONFIG_NETDEVICES=y
 CONFIG_NET=y
+CONFIG_DEFAULT_DEVICE_TREE="stv0991"

include/configs/stv0991.h

@@ -79,5 +79,7 @@
 #define CONFIG_AUTOBOOT_STOP_STR               " "
 #define CONFIG_AUTOBOOT_PROMPT                 \
 	"Hit SPACE in %d seconds to stop autoboot.\n", bootdelay
-
+#define CONFIG_OF_SEPARATE
+#define CONFIG_OF_CONTROL
+#define CONFIG_OF_LIBFDT
 #endif /* __CONFIG_H */