1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-only
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * (Hisilicon's SoC based) flattened device tree enabled machine
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Copyright (c) 2012-2013 Hisilicon Ltd.
6*4882a593Smuzhiyun * Copyright (c) 2012-2013 Linaro Ltd.
7*4882a593Smuzhiyun *
8*4882a593Smuzhiyun * Author: Haojian Zhuang <haojian.zhuang@linaro.org>
9*4882a593Smuzhiyun */
10*4882a593Smuzhiyun
11*4882a593Smuzhiyun #include <linux/clocksource.h>
12*4882a593Smuzhiyun #include <linux/irqchip.h>
13*4882a593Smuzhiyun
14*4882a593Smuzhiyun #include <asm/mach/arch.h>
15*4882a593Smuzhiyun #include <asm/mach/map.h>
16*4882a593Smuzhiyun
17*4882a593Smuzhiyun #define HI3620_SYSCTRL_PHYS_BASE 0xfc802000
18*4882a593Smuzhiyun #define HI3620_SYSCTRL_VIRT_BASE 0xfe802000
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun /*
21*4882a593Smuzhiyun * This table is only for optimization. Since ioremap() could always share
22*4882a593Smuzhiyun * the same mapping if it's defined as static IO mapping.
23*4882a593Smuzhiyun *
24*4882a593Smuzhiyun * Without this table, system could also work. The cost is some virtual address
25*4882a593Smuzhiyun * spaces wasted since ioremap() may be called multi times for the same
26*4882a593Smuzhiyun * IO space.
27*4882a593Smuzhiyun */
28*4882a593Smuzhiyun static struct map_desc hi3620_io_desc[] __initdata = {
29*4882a593Smuzhiyun {
30*4882a593Smuzhiyun /* sysctrl */
31*4882a593Smuzhiyun .pfn = __phys_to_pfn(HI3620_SYSCTRL_PHYS_BASE),
32*4882a593Smuzhiyun .virtual = HI3620_SYSCTRL_VIRT_BASE,
33*4882a593Smuzhiyun .length = 0x1000,
34*4882a593Smuzhiyun .type = MT_DEVICE,
35*4882a593Smuzhiyun },
36*4882a593Smuzhiyun };
37*4882a593Smuzhiyun
hi3620_map_io(void)38*4882a593Smuzhiyun static void __init hi3620_map_io(void)
39*4882a593Smuzhiyun {
40*4882a593Smuzhiyun debug_ll_io_init();
41*4882a593Smuzhiyun iotable_init(hi3620_io_desc, ARRAY_SIZE(hi3620_io_desc));
42*4882a593Smuzhiyun }
43*4882a593Smuzhiyun
44*4882a593Smuzhiyun static const char *const hi3xxx_compat[] __initconst = {
45*4882a593Smuzhiyun "hisilicon,hi3620-hi4511",
46*4882a593Smuzhiyun NULL,
47*4882a593Smuzhiyun };
48*4882a593Smuzhiyun
49*4882a593Smuzhiyun DT_MACHINE_START(HI3620, "Hisilicon Hi3620 (Flattened Device Tree)")
50*4882a593Smuzhiyun .map_io = hi3620_map_io,
51*4882a593Smuzhiyun .dt_compat = hi3xxx_compat,
52*4882a593Smuzhiyun MACHINE_END
53