arm/dts: Add omap36xx.dtsi file and rename omap3-beagle to omap3-beagle-xm

The extra serial port is not available on 34xx. And the current
omap3-beagle.dts file is for omap3-beagle-xm.dts as it lists 512MB
of memory.

Please somebody submit a new omap3-beagle.dts for the original 34xx
BeagleBoard after testing it properly.

Cc: Benoit Cousson <b-cousson@ti.com>
Cc: devicetree-discuss@lists.ozlabs.org
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/omap3-beagle.dts → arch/arm/boot/dts/omap3-beagle-xm.dts

@@ -7,11 +7,11 @@
  */
 /dts-v1/;
 
-/include/ "omap3.dtsi"
+/include/ "omap36xx.dtsi"
 
 / {
-	model = "TI OMAP3 BeagleBoard";
-	compatible = "ti,omap3-beagle", "ti,omap3";
+	model = "TI OMAP3 BeagleBoard xM";
+	compatible = "ti,omap3-beagle-xm, ti,omap3-beagle", "ti,omap3";
 
 	memory {
 		device_type = "memory";

arch/arm/boot/dts/omap3.dtsi

@@ -17,7 +17,6 @@ aliases {
 		serial0 = &uart1;
 		serial1 = &uart2;
 		serial2 = &uart3;
-		serial3 = &uart4;
 	};
 
 	cpus {
@@ -141,12 +140,6 @@ uart3: serial@49020000 {
 			clock-frequency = <48000000>;
 		};
 
-		uart4: serial@49042000 {
-			compatible = "ti,omap3-uart";
-			ti,hwmods = "uart4";
-			clock-frequency = <48000000>;
-		};
-
 		i2c1: i2c@48070000 {
 			compatible = "ti,omap3-i2c";
 			#address-cells = <1>;

arch/arm/boot/dts/omap36xx.dtsi

+/*
+ * Device Tree Source for OMAP3 SoC
+ *
+ * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+/include/ "omap3.dtsi"
+
+/ {
+	aliases {
+		serial3 = &uart4;
+	};
+
+	ocp {
+		uart4: serial@49042000 {
+			compatible = "ti,omap3-uart";
+			ti,hwmods = "uart4";
+			clock-frequency = <48000000>;
+		};
+	};
+};

arch/arm/mach-omap2/Makefile.boot

@@ -3,7 +3,7 @@ params_phys-y		:= 0x80000100
 initrd_phys-y		:= 0x80800000
 
 dtb-$(CONFIG_SOC_OMAP2420)	+= omap2420-h4.dtb
-dtb-$(CONFIG_ARCH_OMAP3)	+= omap3-beagle.dtb omap3-evm.dtb omap3-tobi.dtb
+dtb-$(CONFIG_ARCH_OMAP3)	+= omap3-beagle-xm.dtb omap3-evm.dtb omap3-tobi.dtb
 dtb-$(CONFIG_ARCH_OMAP4)	+= omap4-panda.dtb omap4-pandaES.dtb
 dtb-$(CONFIG_ARCH_OMAP4)	+= omap4-var_som.dtb omap4-sdp.dtb
 dtb-$(CONFIG_SOC_OMAP5)		+= omap5-evm.dtb