linux-vybrid_public/arch/mips/netlogic/xlp/of.c

#include <linux/bootmem.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/of_fdt.h>
#include <asm/byteorder.h>

static int __init reserve_mem_mach(unsigned long addr, unsigned long size)
{
	return reserve_bootmem(addr, size, BOOTMEM_DEFAULT);
}

void __init free_mem_mach(unsigned long addr, unsigned long size)
{
	return free_bootmem(addr, size);
}

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_mem_mach(base, size);

	unflatten_device_tree();

	/* free the space reserved for the dt blob */
	free_mem_mach(base, size);
}