1// SPDX-License-Identifier: GPL-2.0
2/*
3 * r8a7778 processor support
4 *
5 * Copyright (C) 2013  Renesas Solutions Corp.
6 * Copyright (C) 2013  Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
7 * Copyright (C) 2013  Cogent Embedded, Inc.
8 */
9
10#include <linux/io.h>
11#include <linux/irqchip.h>
12
13#include <asm/mach/arch.h>
14
15#include "common.h"
16
17#define INT2SMSKCR0	0x82288 /* 0xfe782288 */
18#define INT2SMSKCR1	0x8228c /* 0xfe78228c */
19
20#define INT2NTSR0	0x00018 /* 0xfe700018 */
21#define INT2NTSR1	0x0002c /* 0xfe70002c */
22
23static void __init r8a7778_init_irq_dt(void)
24{
25	void __iomem *base = ioremap(0xfe700000, 0x00100000);
26
27	BUG_ON(!base);
28
29	irqchip_init();
30
31	/* route all interrupts to ARM */
32	__raw_writel(0x73ffffff, base + INT2NTSR0);
33	__raw_writel(0xffffffff, base + INT2NTSR1);
34
35	/* unmask all known interrupts in INTCS2 */
36	__raw_writel(0x08330773, base + INT2SMSKCR0);
37	__raw_writel(0x00311110, base + INT2SMSKCR1);
38
39	iounmap(base);
40}
41
42static const char *const r8a7778_compat_dt[] __initconst = {
43	"renesas,r8a7778",
44	NULL,
45};
46
47DT_MACHINE_START(R8A7778_DT, "Generic R8A7778 (Flattened Device Tree)")
48	.init_early	= shmobile_init_delay,
49	.init_irq	= r8a7778_init_irq_dt,
50	.init_late	= shmobile_init_late,
51	.dt_compat	= r8a7778_compat_dt,
52MACHINE_END
53