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 HPBREG_BASE 0xfe700000
18
19 #define INT2SMSKCR0 0x82288 /* 0xfe782288 */
20 #define INT2SMSKCR1 0x8228c /* 0xfe78228c */
21
22 #define INT2NTSR0 0x00018 /* 0xfe700018 */
23 #define INT2NTSR1 0x0002c /* 0xfe70002c */
24
25 static void __init r8a7778_init_irq_dt(void)
26 {
27 void __iomem *base = ioremap(HPBREG_BASE, 0x00100000);
28
29 BUG_ON(!base);
30
31 irqchip_init();
32
33 /* route all interrupts to ARM */
34 writel(0x73ffffff, base + INT2NTSR0);
35 writel(0xffffffff, base + INT2NTSR1);
36
37 /* unmask all known interrupts in INTCS2 */
38 writel(0x08330773, base + INT2SMSKCR0);
39 writel(0x00311110, base + INT2SMSKCR1);
40
41 iounmap(base);
42 }
43
44 static const char *const r8a7778_compat_dt[] __initconst = {
45 "renesas,r8a7778",
46 NULL
47 };
48
49 DT_MACHINE_START(R8A7778_DT, "Generic R8A7778 (Flattened Device Tree)")
50 .init_early = shmobile_init_delay,
51 .init_irq = r8a7778_init_irq_dt,
52 .init_late = shmobile_init_late,
53 .dt_compat = r8a7778_compat_dt,
54 MACHINE_END
55
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.