Merge branch 'depends/clk' into next/soc
[firefly-linux-kernel-4.4.55.git] / arch / arm / mach-sunxi / sunxi.c
1 /*
2  * Device Tree support for Allwinner A1X SoCs
3  *
4  * Copyright (C) 2012 Maxime Ripard
5  *
6  * Maxime Ripard <maxime.ripard@free-electrons.com>
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_irq.h>
16 #include <linux/of_platform.h>
17 #include <linux/io.h>
18 #include <linux/sunxi_timer.h>
19
20 #include <linux/irqchip/sunxi.h>
21
22 #include <asm/hardware/vic.h>
23
24 #include <asm/mach/arch.h>
25 #include <asm/mach/map.h>
26
27 #include "sunxi.h"
28
29 static struct map_desc sunxi_io_desc[] __initdata = {
30         {
31                 .virtual        = (unsigned long) SUNXI_REGS_VIRT_BASE,
32                 .pfn            = __phys_to_pfn(SUNXI_REGS_PHYS_BASE),
33                 .length         = SUNXI_REGS_SIZE,
34                 .type           = MT_DEVICE,
35         },
36 };
37
38 void __init sunxi_map_io(void)
39 {
40         iotable_init(sunxi_io_desc, ARRAY_SIZE(sunxi_io_desc));
41 }
42
43 static void __init sunxi_dt_init(void)
44 {
45         of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
46 }
47
48 static const char * const sunxi_board_dt_compat[] = {
49         "allwinner,sun5i",
50         NULL,
51 };
52
53 DT_MACHINE_START(SUNXI_DT, "Allwinner A1X (Device Tree)")
54         .init_machine   = sunxi_dt_init,
55         .map_io         = sunxi_map_io,
56         .init_irq       = sunxi_init_irq,
57         .handle_irq     = sunxi_handle_irq,
58         .timer          = &sunxi_timer,
59         .dt_compat      = sunxi_board_dt_compat,
60 MACHINE_END