MIPS: Netlogic: merge of.c into setup.c

Move the function device_tree_init() from netlogic/xlp/of.c
to setup.c, and remove the wrapper functions reserve_mem_mach()
and free_mem_mach().

Remove file netlogic/xlp/of.c, and the Makefile entry for it.

Signed-off-by: Jayachandran C <jayachandranc@netlogicmicro.com>
Patchwork: http://patchwork.linux-mips.org/patch/4097/
Signed-off-by: John Crispin <blogic@openwrt.org>

arch/mips/netlogic/xlp/Makefile

@@ -1,4 +1,3 @@
 obj-y				+= setup.o platform.o nlm_hal.o
-obj-$(CONFIG_OF)		+= of.o
 obj-$(CONFIG_SMP)		+= wakeup.o
 obj-$(CONFIG_USB)		+= usb-init.o

arch/mips/netlogic/xlp/setup.c

@@ -35,6 +35,7 @@
 #include <linux/kernel.h>
 #include <linux/serial_8250.h>
 #include <linux/pm.h>
+#include <linux/bootmem.h>
 
 #include <asm/reboot.h>
 #include <asm/time.h>
@@ -112,6 +113,25 @@ void __init prom_init(void)
 #endif
 }
 
+void __init device_tree_init(void)
+{
+	unsigned long base, size;
+
+	if (!initial_boot_params)
+		return;
+
+	base = virt_to_phys((void *)initial_boot_params);
+	size = be32_to_cpu(initial_boot_params->totalsize);
+
+	/* Before we do anything, lets reserve the dt blob */
+	reserve_bootmem(base, size, BOOTMEM_DEFAULT);
+
+	unflatten_device_tree();
+
+	/* free the space reserved for the dt blob */
+	free_bootmem(base, size);
+}
+
 static struct of_device_id __initdata xlp_ids[] = {
 	{ .compatible = "simple-bus", },
 	{},