1 /* 2 * r8a7778 processor support 3 * 4 * Copyright (C) 2013 Renesas Solutions Corp. 5 * Copyright (C) 2013 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> 6 * Copyright (C) 2013 Cogent Embedded, Inc. 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; version 2 of the License. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 */ 17 18 #include <linux/io.h> 19 #include <linux/irqchip.h> 20 21 #include <asm/mach/arch.h> 22 23 #include "common.h" 24 25 #define INT2SMSKCR0 0x82288 /* 0xfe782288 */ 26 #define INT2SMSKCR1 0x8228c /* 0xfe78228c */ 27 28 #define INT2NTSR0 0x00018 /* 0xfe700018 */ 29 #define INT2NTSR1 0x0002c /* 0xfe70002c */ 30 31 static void __init r8a7778_init_irq_dt(void) 32 { 33 void __iomem *base = ioremap_nocache(0xfe700000, 0x00100000); 34 35 BUG_ON(!base); 36 37 irqchip_init(); 38 39 /* route all interrupts to ARM */ 40 __raw_writel(0x73ffffff, base + INT2NTSR0); 41 __raw_writel(0xffffffff, base + INT2NTSR1); 42 43 /* unmask all known interrupts in INTCS2 */ 44 __raw_writel(0x08330773, base + INT2SMSKCR0); 45 __raw_writel(0x00311110, base + INT2SMSKCR1); 46 47 iounmap(base); 48 } 49 50 static const char *const r8a7778_compat_dt[] __initconst = { 51 "renesas,r8a7778", 52 NULL, 53 }; 54 55 DT_MACHINE_START(R8A7778_DT, "Generic R8A7778 (Flattened Device Tree)") 56 .init_early = shmobile_init_delay, 57 .init_irq = r8a7778_init_irq_dt, 58 .init_late = shmobile_init_late, 59 .dt_compat = r8a7778_compat_dt, 60 MACHINE_END 61