ARM: integrator: hook the CP into the SoC bus

This hooks the Integrator/CP into the SoC bus when booting from
device tree, by mapping the CP controller registers first,
then registering the SoC device, and then populating the device
tree with the SoC device as parent.

Cc: Lee Jones <lee.jones@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

arch/arm/boot/dts/integratorcp.dts

@@ -18,6 +18,11 @@
 		bootargs = "root=/dev/ram0 console=ttyAMA0,38400n8 earlyprintk";
 	};
 
+	cpcon {
+		/* CP controller registers */
+		reg = <0xcb000000 0x100>;
+	};
+
 	timer0: timer@13000000 {
 		compatible = "arm,sp804", "arm,primecell";
 	};