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