[POWERPC] MPC8349E-mITX: introduce localbus and pata nodes

This patch adds localbus and pata nodes to use CF IDE interface
on MPC8349E-mITX boards.

Patch also adds code to probe localbus.

Signed-off-by: Anton Vorontsov <[e-mail]>
Signed-off-by: Kumar Gala <[e-mail]>

arch/powerpc/boot/dts/mpc8349emitx.dts

···
 		device_type = "pci";
 	};
 
+	localbus@e0005000 {
+		#address-cells = <2>;
+		#size-cells = <1>;
+		compatible = "fsl,mpc8349e-localbus",
+			     "fsl,pq2pro-localbus";
+		reg = <e0005000 d8>;
+		ranges = <3 0 f0000000 210>;
 
-
+		pata@3,0 {
+			compatible = "fsl,mpc8349emitx-pata", "ata-generic";
+			reg = <3 0 10 3 20c 4>;
+			reg-shift = <1>;
+			pio-mode = <6>;
+			interrupts = <17 8>;
+			interrupt-parent = <&ipic>;
+		};
+	};
 };

arch/powerpc/configs/mpc834x_itx_defconfig

···
 # CONFIG_PATA_SIS is not set
 # CONFIG_PATA_VIA is not set
 # CONFIG_PATA_WINBOND is not set
-# CONFIG_PATA_PLATFORM is not set
+CONFIG_PATA_PLATFORM=y
+CONFIG_PATA_OF_PLATFORM=y
 CONFIG_MD=y
 CONFIG_BLK_DEV_MD=y
 CONFIG_MD_LINEAR=y

arch/powerpc/platforms/83xx/mpc834x_itx.c

···
 #include <linux/delay.h>
 #include <linux/seq_file.h>
 #include <linux/root_dev.h>
+#include <linux/of_platform.h>
 
 #include <asm/system.h>
 #include <asm/atomic.h>
···
 #include <sysdev/fsl_soc.h>
 
 #include "mpc83xx.h"
+
+static struct of_device_id __initdata mpc834x_itx_ids[] = {
+	{ .compatible = "fsl,pq2pro-localbus", },
+	{},
+};
+
+static int __init mpc834x_itx_declare_of_platform_devices(void)
+{
+	return of_platform_bus_probe(NULL, mpc834x_itx_ids, NULL);
+}
+machine_device_initcall(mpc834x_itx, mpc834x_itx_declare_of_platform_devices);
 
 /* ************************************************************************
  *