Release 4.16 arch/metag/kernel/devtree.c

/*
 *  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/of_fdt.h>

#include <asm/setup.h>
#include <asm/page.h>
#include <asm/mach/arch.h>



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;
}

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/**
 * 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;
}
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Directory: arch/metag/kernel

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