Magnus Damm | f411fad | 2011-12-14 01:36:12 +0900 | [diff] [blame] | 1 | /* |
| 2 | * r8a7779 processor support - INTC hardware block |
| 3 | * |
| 4 | * Copyright (C) 2011 Renesas Solutions Corp. |
| 5 | * Copyright (C) 2011 Magnus Damm |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; version 2 of the License. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 19 | */ |
| 20 | #include <linux/kernel.h> |
| 21 | #include <linux/init.h> |
| 22 | #include <linux/interrupt.h> |
| 23 | #include <linux/irq.h> |
| 24 | #include <linux/io.h> |
| 25 | #include <mach/common.h> |
| 26 | #include <mach/intc.h> |
| 27 | #include <mach/r8a7779.h> |
| 28 | #include <asm/hardware/gic.h> |
| 29 | #include <asm/mach-types.h> |
| 30 | #include <asm/mach/arch.h> |
| 31 | |
| 32 | #define INT2SMSKCR0 0xfe7822a0 |
| 33 | #define INT2SMSKCR1 0xfe7822a4 |
| 34 | #define INT2SMSKCR2 0xfe7822a8 |
| 35 | #define INT2SMSKCR3 0xfe7822ac |
| 36 | #define INT2SMSKCR4 0xfe7822b0 |
| 37 | |
| 38 | static int r8a7779_set_wake(struct irq_data *data, unsigned int on) |
| 39 | { |
| 40 | return 0; /* always allow wakeup */ |
| 41 | } |
| 42 | |
| 43 | void __init r8a7779_init_irq(void) |
| 44 | { |
Rob Herring | a2a47ca | 2012-03-09 17:16:40 -0600 | [diff] [blame] | 45 | void __iomem *gic_dist_base = IOMEM(0xf0001000); |
| 46 | void __iomem *gic_cpu_base = IOMEM(0xf0000100); |
Magnus Damm | f411fad | 2011-12-14 01:36:12 +0900 | [diff] [blame] | 47 | |
| 48 | /* use GIC to handle interrupts */ |
| 49 | gic_init(0, 29, gic_dist_base, gic_cpu_base); |
| 50 | gic_arch_extn.irq_set_wake = r8a7779_set_wake; |
| 51 | |
| 52 | /* unmask all known interrupts in INTCS2 */ |
| 53 | __raw_writel(0xfffffff0, INT2SMSKCR0); |
| 54 | __raw_writel(0xfff7ffff, INT2SMSKCR1); |
| 55 | __raw_writel(0xfffbffdf, INT2SMSKCR2); |
| 56 | __raw_writel(0xbffffffc, INT2SMSKCR3); |
| 57 | __raw_writel(0x003fee3f, INT2SMSKCR4); |
| 58 | } |