Add files for RFM driver and SPI

raspyrfm.diff

@@ -0,0 +1,14 @@
+diff --git a/raspyrfm/__init__.py b/raspyrfm/__init__.py
+index 3587a64..08d895d 100644
+--- a/raspyrfm/__init__.py
++++ b/raspyrfm/__init__.py
+@@ -12,6 +12,9 @@ def __get_hw_params(mod):
+ 		dio0 = 1
+ 	elif mod == 4:
+ 		dio0 = 18
++	elif mod == 5:
++		dio0 = 2
++		mod = 3 # spidev0.2
+ 	else:
+ 		return
+ 

spi0-3cs-overlay.dts

@@ -0,0 +1,44 @@
+/dts-v1/;
+/plugin/;
+
+
+/ {
+	compatible = "brcm,bcm2835";
+
+	fragment@0 {
+		target = <&spi0_cs_pins>;
+		frag0: __overlay__ {
+			brcm,pins = <8 7 3>;
+		};
+	};
+
+	fragment@1 {
+		target = <&spi0>;
+		frag1: __overlay__ {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			cs-gpios = <&gpio 8 1>, <&gpio 7 1>, <&gpio 3 1>;
+			status = "okay";
+
+			spidev0_2: spidev@2 {
+				compatible = "spidev";
+				reg = <2>;	/* CE0 */
+				#address-cells = <1>;
+				#size-cells = <0>;
+				spi-max-frequency = <125000000>;
+			};
+		};
+	};
+
+	__overrides__ {
+		cs0_pin  = <&frag0>,"brcm,pins:0",
+			   <&frag1>,"cs-gpios:4";
+		cs1_pin  = <&frag0>,"brcm,pins:4",
+			   <&frag1>,"cs-gpios:16";
+		cs2_pin  = <&frag0>,"brcm,pins:8",
+			   <&frag1>,"cs-gpios:28";
+		cs2_spidev = <&spidev0_2>, "status";
+ 	};
+};
+