ARM: dts: meson: group the Cortex-A5 / Cortex-A9 peripherals

The public Meson8b (S805) datasheet describes a memory region called "A9
Periph base" which starts at 0xC4300000 and ends at 0xC430FFFF. Add a
simple-bus node and move all peripherals that are part of this memory
region.
This makes the .dts a bit easier to read. No functional changes.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
diff --git a/arch/arm/boot/dts/meson.dtsi b/arch/arm/boot/dts/meson.dtsi
index 0839da0..e4645f6 100644
--- a/arch/arm/boot/dts/meson.dtsi
+++ b/arch/arm/boot/dts/meson.dtsi
@@ -59,14 +59,6 @@
 		cache-level = <2>;
 	};
 
-	gic: interrupt-controller@c4301000 {
-		compatible = "arm,cortex-a9-gic";
-		reg = <0xc4301000 0x1000>,
-		      <0xc4300100 0x0100>;
-		interrupt-controller;
-		#interrupt-cells = <3>;
-	};
-
 	soc {
 		compatible = "simple-bus";
 		#address-cells = <1>;
@@ -207,6 +199,22 @@
 			};
 		};
 
+		periph: bus@c4300000 {
+			compatible = "simple-bus";
+			reg = <0xc4300000 0x10000>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges = <0x0 0xc4300000 0x10000>;
+
+			gic: interrupt-controller@1000 {
+				compatible = "arm,cortex-a9-gic";
+				reg = <0x1000 0x1000>,
+				      <0x100 0x100>;
+				interrupt-controller;
+				#interrupt-cells = <3>;
+			};
+		};
+
 		aobus: aobus@c8100000 {
 			compatible = "simple-bus";
 			reg = <0xc8100000 0x100000>;