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/clocksource.h>
20 #include <asm/system_misc.h>
21 #include <asm/mach/arch.h>
22 #include <asm/mach/map.h>
23 #include <mach/orion5x.h>
24 #include <mach/bridge-regs.h>
25 #include <plat/irq.h>
26 #include <plat/time.h>
27 #include "common.h"
28
29 static struct of_dev_auxdata orion5x_auxdata_lookup[] __initdata = {
30 OF_DEV_AUXDATA("marvell,orion-spi", 0xf1010600, "orion_spi.0", NULL),
31 OF_DEV_AUXDATA("marvell,mv64xxx-i2c", 0xf1011000, "mv64xxx_i2c.0",
32 NULL),
33 OF_DEV_AUXDATA("marvell,orion-wdt", 0xf1020300, "orion_wdt", NULL),
34 OF_DEV_AUXDATA("marvell,orion-sata", 0xf1080000, "sata_mv.0", NULL),
35 OF_DEV_AUXDATA("marvell,orion-crypto", 0xf1090000, "mv_crypto", NULL),
36 {},
37 };
38
orion5x_dt_init(void)39 static void __init orion5x_dt_init(void)
40 {
41 char *dev_name;
42 u32 dev, rev;
43
44 orion5x_id(&dev, &rev, &dev_name);
45 printk(KERN_INFO "Orion ID: %s. TCLK=%d.\n", dev_name, orion5x_tclk);
46
47 BUG_ON(mvebu_mbus_dt_init(false));
48
49 /*
50 * Setup Orion address map
51 */
52 orion5x_setup_wins();
53
54 /*
55 * Don't issue "Wait for Interrupt" instruction if we are
56 * running on D0 5281 silicon.
57 */
58 if (dev == MV88F5281_DEV_ID && rev == MV88F5281_REV_D0) {
59 printk(KERN_INFO "Orion: Applying 5281 D0 WFI workaround.\n");
60 cpu_idle_poll_ctrl(true);
61 }
62
63 if (of_machine_is_compatible("maxtor,shared-storage-2"))
64 mss2_init();
65
66 of_platform_populate(NULL, of_default_bus_match_table,
67 orion5x_auxdata_lookup, NULL);
68 }
69
70 static const char *orion5x_dt_compat[] = {
71 "marvell,orion5x",
72 NULL,
73 };
74
75 DT_MACHINE_START(ORION5X_DT, "Marvell Orion5x (Flattened Device Tree)")
76 /* Maintainer: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> */
77 .map_io = orion5x_map_io,
78 .init_machine = orion5x_dt_init,
79 .restart = orion5x_restart,
80 .dt_compat = orion5x_dt_compat,
81 MACHINE_END
82