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/of_platform.h>
19 #include <linux/time-armada-370-xp.h>
20 #include <linux/clk/mvebu.h>
21 #include <linux/dma-mapping.h>
22 #include <linux/irqchip.h>
23 #include <asm/hardware/cache-l2x0.h>
24 #include <asm/mach/arch.h>
25 #include <asm/mach/map.h>
26 #include <asm/mach/time.h>
27 #include "armada-370-xp.h"
29 #include "coherency.h"
31 static struct map_desc armada_370_xp_io_desc[] __initdata = {
33 .virtual = (unsigned long) ARMADA_370_XP_REGS_VIRT_BASE,
34 .pfn = __phys_to_pfn(ARMADA_370_XP_REGS_PHYS_BASE),
35 .length = ARMADA_370_XP_REGS_SIZE,
40 void __init armada_370_xp_map_io(void)
42 iotable_init(armada_370_xp_io_desc, ARRAY_SIZE(armada_370_xp_io_desc));
45 void __init armada_370_xp_timer_and_clk_init(void)
48 armada_370_xp_timer_init();
51 void __init armada_370_xp_init_early(void)
54 * Some Armada 370/XP devices allocate their coherent buffers
55 * from atomic context. Increase size of atomic coherent pool
56 * to make sure such the allocations won't fail.
58 init_dma_coherent_pool_size(SZ_1M);
60 #ifdef CONFIG_CACHE_L2X0
61 l2x0_of_init(0, ~0UL);
65 static void __init armada_370_xp_dt_init(void)
67 of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
71 static const char * const armada_370_xp_dt_compat[] = {
72 "marvell,armada-370-xp",
76 DT_MACHINE_START(ARMADA_XP_DT, "Marvell Armada 370/XP (Device Tree)")
77 .smp = smp_ops(armada_xp_smp_ops),
78 .init_machine = armada_370_xp_dt_init,
79 .map_io = armada_370_xp_map_io,
80 .init_early = armada_370_xp_init_early,
81 .init_irq = irqchip_init,
82 .init_time = armada_370_xp_timer_and_clk_init,
83 .restart = mvebu_restart,
84 .dt_compat = armada_370_xp_dt_compat,