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