2 * Device Tree support for Armada 370 and XP platforms.
4 * Copyright (C) 2012 Marvell
6 * Lior Amsalem <alior@marvell.com>
7 * Gregory CLEMENT <gregory.clement@free-electrons.com>
8 * Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
10 * This file is licensed under the terms of the GNU General Public
11 * License version 2. This program is licensed "as is" without any
12 * warranty of any kind, whether express or implied.
15 #include <linux/kernel.h>
16 #include <linux/init.h>
17 #include <linux/clk-provider.h>
18 #include <linux/of_address.h>
19 #include <linux/of_platform.h>
21 #include <linux/clocksource.h>
22 #include <linux/dma-mapping.h>
23 #include <linux/mbus.h>
24 #include <linux/signal.h>
25 #include <linux/slab.h>
26 #include <asm/hardware/cache-l2x0.h>
27 #include <asm/mach/arch.h>
28 #include <asm/mach/map.h>
29 #include <asm/mach/time.h>
30 #include "armada-370-xp.h"
32 #include "coherency.h"
33 #include "mvebu-soc-id.h"
35 static void __init armada_370_xp_timer_and_clk_init(void)
38 clocksource_of_init();
40 BUG_ON(mvebu_mbus_dt_init());
41 #ifdef CONFIG_CACHE_L2X0
42 l2x0_of_init(0, ~0UL);
46 static void __init i2c_quirk(void)
48 struct device_node *np;
52 * Only revisons more recent than A0 support the offload
53 * mechanism. We can exit only if we are sure that we can
54 * get the SoC revision and it is more recent than A0.
56 if (mvebu_get_soc_id(&rev, &dev) == 0 && dev > MV78XX0_A0_REV)
59 for_each_compatible_node(np, NULL, "marvell,mv78230-i2c") {
60 struct property *new_compat;
62 new_compat = kzalloc(sizeof(*new_compat), GFP_KERNEL);
64 new_compat->name = kstrdup("compatible", GFP_KERNEL);
65 new_compat->length = sizeof("marvell,mv78230-a0-i2c");
66 new_compat->value = kstrdup("marvell,mv78230-a0-i2c",
69 of_update_property(np, new_compat);
74 static void __init armada_370_xp_dt_init(void)
76 if (of_machine_is_compatible("plathome,openblocks-ax3-4"))
78 of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
81 static const char * const armada_370_xp_dt_compat[] = {
82 "marvell,armada-370-xp",
86 DT_MACHINE_START(ARMADA_XP_DT, "Marvell Armada 370/XP (Device Tree)")
87 .smp = smp_ops(armada_xp_smp_ops),
88 .init_machine = armada_370_xp_dt_init,
89 .init_time = armada_370_xp_timer_and_clk_init,
90 .restart = mvebu_restart,
91 .dt_compat = armada_370_xp_dt_compat,