1 /*
2 * (Hisilicon's SoC based) flattened device tree enabled machine
3 *
4 * Copyright (c) 2012-2013 Hisilicon Ltd.
5 * Copyright (c) 2012-2013 Linaro Ltd.
6 *
7 * Author: Haojian Zhuang <haojian.zhuang@linaro.org>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 */
13
14 #include <linux/clk-provider.h>
15 #include <linux/clocksource.h>
16 #include <linux/irqchip.h>
17
18 #include <asm/mach/arch.h>
19 #include <asm/mach/map.h>
20
21 #define HI3620_SYSCTRL_PHYS_BASE 0xfc802000
22 #define HI3620_SYSCTRL_VIRT_BASE 0xfe802000
23
24 /*
25 * This table is only for optimization. Since ioremap() could always share
26 * the same mapping if it's defined as static IO mapping.
27 *
28 * Without this table, system could also work. The cost is some virtual address
29 * spaces wasted since ioremap() may be called multi times for the same
30 * IO space.
31 */
32 static struct map_desc hi3620_io_desc[] __initdata = {
33 {
34 /* sysctrl */
35 .pfn = __phys_to_pfn(HI3620_SYSCTRL_PHYS_BASE),
36 .virtual = HI3620_SYSCTRL_VIRT_BASE,
37 .length = 0x1000,
38 .type = MT_DEVICE,
39 },
40 };
41
hi3620_map_io(void)42 static void __init hi3620_map_io(void)
43 {
44 debug_ll_io_init();
45 iotable_init(hi3620_io_desc, ARRAY_SIZE(hi3620_io_desc));
46 }
47
48 static const char *hi3xxx_compat[] __initconst = {
49 "hisilicon,hi3620-hi4511",
50 NULL,
51 };
52
53 DT_MACHINE_START(HI3620, "Hisilicon Hi3620 (Flattened Device Tree)")
54 .map_io = hi3620_map_io,
55 .dt_compat = hi3xxx_compat,
56 MACHINE_END
57
58 static const char *hix5hd2_compat[] __initconst = {
59 "hisilicon,hix5hd2",
60 NULL,
61 };
62
63 DT_MACHINE_START(HIX5HD2_DT, "Hisilicon HIX5HD2 (Flattened Device Tree)")
64 .dt_compat = hix5hd2_compat,
65 MACHINE_END
66
67 static const char *hip04_compat[] __initconst = {
68 "hisilicon,hip04-d01",
69 NULL,
70 };
71
72 DT_MACHINE_START(HIP04, "Hisilicon HiP04 (Flattened Device Tree)")
73 .dt_compat = hip04_compat,
74 MACHINE_END
75