1/*
2 * Copyright 2012 (C), Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
3 *
4 * arch/arm/mach-orion5x/board-dt.c
5 *
6 * Flattened Device Tree board initialization
7 *
8 * This file is licensed under the terms of the GNU General Public
9 * License version 2.  This program is licensed "as is" without any
10 * warranty of any kind, whether express or implied.
11 */
12
13#include <linux/kernel.h>
14#include <linux/init.h>
15#include <linux/of.h>
16#include <linux/of_platform.h>
17#include <linux/cpu.h>
18#include <linux/mbus.h>
19#include <linux/clk-provider.h>
20#include <linux/clocksource.h>
21#include <asm/system_misc.h>
22#include <asm/mach/arch.h>
23#include <asm/mach/map.h>
24#include <mach/orion5x.h>
25#include <mach/bridge-regs.h>
26#include <plat/irq.h>
27#include <plat/time.h>
28#include "common.h"
29
30static struct of_dev_auxdata orion5x_auxdata_lookup[] __initdata = {
31	OF_DEV_AUXDATA("marvell,orion-spi", 0xf1010600, "orion_spi.0", NULL),
32	OF_DEV_AUXDATA("marvell,mv64xxx-i2c", 0xf1011000, "mv64xxx_i2c.0",
33		       NULL),
34	OF_DEV_AUXDATA("marvell,orion-wdt", 0xf1020300, "orion_wdt", NULL),
35	OF_DEV_AUXDATA("marvell,orion-sata", 0xf1080000, "sata_mv.0", NULL),
36	OF_DEV_AUXDATA("marvell,orion-crypto", 0xf1090000, "mv_crypto", NULL),
37	{},
38};
39
40static void __init orion5x_dt_init(void)
41{
42	char *dev_name;
43	u32 dev, rev;
44
45	orion5x_id(&dev, &rev, &dev_name);
46	printk(KERN_INFO "Orion ID: %s. TCLK=%d.\n", dev_name, orion5x_tclk);
47
48	BUG_ON(mvebu_mbus_dt_init(false));
49
50	/*
51	 * Setup Orion address map
52	 */
53	orion5x_setup_wins();
54
55	/*
56	 * Don't issue "Wait for Interrupt" instruction if we are
57	 * running on D0 5281 silicon.
58	 */
59	if (dev == MV88F5281_DEV_ID && rev == MV88F5281_REV_D0) {
60		printk(KERN_INFO "Orion: Applying 5281 D0 WFI workaround.\n");
61		cpu_idle_poll_ctrl(true);
62	}
63
64	if (of_machine_is_compatible("maxtor,shared-storage-2"))
65		mss2_init();
66
67	of_platform_populate(NULL, of_default_bus_match_table,
68			     orion5x_auxdata_lookup, NULL);
69}
70
71static const char *orion5x_dt_compat[] = {
72	"marvell,orion5x",
73	NULL,
74};
75
76DT_MACHINE_START(ORION5X_DT, "Marvell Orion5x (Flattened Device Tree)")
77	/* Maintainer: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> */
78	.map_io		= orion5x_map_io,
79	.init_machine	= orion5x_dt_init,
80	.restart	= orion5x_restart,
81	.dt_compat	= orion5x_dt_compat,
82MACHINE_END
83