1. 根目录:
2. arch
3. arm
4. mach-orion5x
5. board-dt.c

/*
 * Copyright 2012 (C), Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
 *
 * arch/arm/mach-orion5x/board-dt.c
 *
 * Flattened Device Tree board initialization
 *
 * This file is licensed under the terms of the GNU General Public
 * License version 2.  This program is licensed "as is" without any
 * warranty of any kind, whether express or implied.
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/of.h>
#include <linux/of_platform.h>
#include <linux/cpu.h>
#include <asm/system_misc.h>
#include <asm/mach/arch.h>
#include <mach/orion5x.h>
#include <plat/irq.h>
#include "common.h"

static struct of_dev_auxdata orion5x_auxdata_lookup[] __initdata = {
	OF_DEV_AUXDATA("marvell,orion-spi", 0xf1010600, "orion_spi.0", NULL),
	OF_DEV_AUXDATA("marvell,mv64xxx-i2c", 0xf1011000, "mv64xxx_i2c.0",
		       NULL),
	OF_DEV_AUXDATA("marvell,orion-wdt", 0xf1020300, "orion_wdt", NULL),
	OF_DEV_AUXDATA("marvell,orion-sata", 0xf1080000, "sata_mv.0", NULL),
	OF_DEV_AUXDATA("marvell,orion-crypto", 0xf1090000, "mv_crypto", NULL),
	{},
};

static void __init orion5x_dt_init(void)
{
	char *dev_name;
	u32 dev, rev;

	orion5x_id(&dev, &rev, &dev_name);
	printk(KERN_INFO "Orion ID: %s. TCLK=%d.\n", dev_name, orion5x_tclk);

	/*
	 * Setup Orion address map
	 */
	orion5x_setup_wins();

	/* Setup root of clk tree */
	clk_init();

	/*
	 * Don't issue "Wait for Interrupt" instruction if we are
	 * running on D0 5281 silicon.
	 */
	if (dev == MV88F5281_DEV_ID && rev == MV88F5281_REV_D0) {
		printk(KERN_INFO "Orion: Applying 5281 D0 WFI workaround.\n");
		cpu_idle_poll_ctrl(true);
	}

	if (of_machine_is_compatible("lacie,ethernet-disk-mini-v2"))
		edmini_v2_init();

	of_platform_populate(NULL, of_default_bus_match_table,
			     orion5x_auxdata_lookup, NULL);
}

static const char *orion5x_dt_compat[] = {
	"marvell,orion5x",
	NULL,
};

DT_MACHINE_START(ORION5X_DT, "Marvell Orion5x (Flattened Device Tree)")
	/* Maintainer: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> */
	.map_io		= orion5x_map_io,
	.init_early	= orion5x_init_early,
	.init_irq	= orion_dt_init_irq,
	.init_time	= orion5x_timer_init,
	.init_machine	= orion5x_dt_init,
	.restart	= orion5x_restart,
	.dt_compat	= orion5x_dt_compat,
MACHINE_END