1c44e182eSWolfram Sang // SPDX-License-Identifier: GPL-2.0 2ccb7cc74SKuninori Morimoto /* 3ccb7cc74SKuninori Morimoto * r8a7778 processor support 4ccb7cc74SKuninori Morimoto * 5ccb7cc74SKuninori Morimoto * Copyright (C) 2013 Renesas Solutions Corp. 6ccb7cc74SKuninori Morimoto * Copyright (C) 2013 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> 752421914SSergei Shtylyov * Copyright (C) 2013 Cogent Embedded, Inc. 8ccb7cc74SKuninori Morimoto */ 9ccb7cc74SKuninori Morimoto 10ccb7cc74SKuninori Morimoto #include <linux/io.h> 11ccb7cc74SKuninori Morimoto #include <linux/irqchip.h> 1202c94f38SGeert Uytterhoeven 13ccb7cc74SKuninori Morimoto #include <asm/mach/arch.h> 14ccb7cc74SKuninori Morimoto 15fd44aa5eSMagnus Damm #include "common.h" 16ccb7cc74SKuninori Morimoto 17ae04aad7SGeert Uytterhoeven #define HPBREG_BASE 0xfe700000 18ae04aad7SGeert Uytterhoeven 19ccb7cc74SKuninori Morimoto #define INT2SMSKCR0 0x82288 /* 0xfe782288 */ 20ccb7cc74SKuninori Morimoto #define INT2SMSKCR1 0x8228c /* 0xfe78228c */ 21ccb7cc74SKuninori Morimoto 22ccb7cc74SKuninori Morimoto #define INT2NTSR0 0x00018 /* 0xfe700018 */ 23ccb7cc74SKuninori Morimoto #define INT2NTSR1 0x0002c /* 0xfe70002c */ 2420e73335SGeert Uytterhoeven 2520e73335SGeert Uytterhoeven static void __init r8a7778_init_irq_dt(void) 26ccb7cc74SKuninori Morimoto { 27ae04aad7SGeert Uytterhoeven void __iomem *base = ioremap(HPBREG_BASE, 0x00100000); 28ccb7cc74SKuninori Morimoto 29ccb7cc74SKuninori Morimoto BUG_ON(!base); 30ccb7cc74SKuninori Morimoto 3154aa4c48SKuninori Morimoto irqchip_init(); 324baadb9eSUlrich Hecht 33ccb7cc74SKuninori Morimoto /* route all interrupts to ARM */ 34*d4a617c9SGeert Uytterhoeven writel(0x73ffffff, base + INT2NTSR0); 35*d4a617c9SGeert Uytterhoeven writel(0xffffffff, base + INT2NTSR1); 36ccb7cc74SKuninori Morimoto 37ccb7cc74SKuninori Morimoto /* unmask all known interrupts in INTCS2 */ 38*d4a617c9SGeert Uytterhoeven writel(0x08330773, base + INT2SMSKCR0); 39*d4a617c9SGeert Uytterhoeven writel(0x00311110, base + INT2SMSKCR1); 40ccb7cc74SKuninori Morimoto 41ccb7cc74SKuninori Morimoto iounmap(base); 42ccb7cc74SKuninori Morimoto } 43ccb7cc74SKuninori Morimoto 4419c233b7SNicolas Pitre static const char *const r8a7778_compat_dt[] __initconst = { 45ccb7cc74SKuninori Morimoto "renesas,r8a7778", 46ccb7cc74SKuninori Morimoto NULL, 47ccb7cc74SKuninori Morimoto }; 48ccb7cc74SKuninori Morimoto 49ccb7cc74SKuninori Morimoto DT_MACHINE_START(R8A7778_DT, "Generic R8A7778 (Flattened Device Tree)") 5092ee341eSGeert Uytterhoeven .init_early = shmobile_init_delay, 51ccb7cc74SKuninori Morimoto .init_irq = r8a7778_init_irq_dt, 527759a7a8SMagnus Damm .init_late = shmobile_init_late, 53ccb7cc74SKuninori Morimoto .dt_compat = r8a7778_compat_dt, 54ccb7cc74SKuninori Morimoto MACHINE_END 55