/* *  linux/arch/metag/kernel/devtree.c * *  Copyright (C) 2012 Imagination Technologies Ltd. * *  Based on ARM version: *  Copyright (C) 2009 Canonical Ltd. <jeremy.kerr@canonical.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #include <linux/init.h>#include <linux/export.h>#include <linux/types.h>#include <linux/bootmem.h>#include <linux/memblock.h>#include <linux/of.h>#include <linux/of_fdt.h> #include <asm/setup.h>#include <asm/page.h>#include <asm/mach/arch.h> void __init early_init_dt_add_memory_arch(u64 base, u64 size){	pr_err("%s(%llx, %llx)\n",	       __func__, base, size);} void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align){	return alloc_bootmem_align(size, align);} static const void * __init arch_get_next_mach(const char *const **match){	static const struct machine_desc *mdesc = __arch_info_begin;	const struct machine_desc *m = mdesc; 	if (m >= __arch_info_end)		return NULL; 	mdesc++;	*match = m->dt_compat;	return m;} /** * setup_machine_fdt - Machine setup when an dtb was passed to the kernel * @dt:		virtual address pointer to dt blob * * If a dtb was passed to the kernel, then use it to choose the correct * machine_desc and to setup the system. */const struct machine_desc * __init setup_machine_fdt(void *dt){	const struct machine_desc *mdesc; 	/* check device tree validity */	if (!early_init_dt_scan(dt))		return NULL; 	mdesc = of_flat_dt_match_machine(NULL, arch_get_next_mach);	if (!mdesc)		dump_machine_table(); /* does not return */	pr_info("Machine name: %s\n", mdesc->name); 	return mdesc;}