1/* 2 * arch/arm/mach-at91/include/mach/irqs.h 3 * 4 * Copyright (C) 2004 SAN People 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 19 */ 20 21#ifndef __ASM_ARCH_IRQS_H 22#define __ASM_ARCH_IRQS_H 23 24#include <linux/io.h> 25#include <mach/at91_aic.h> 26 27#define NR_AIC_IRQS 32 28 29 30/* 31 * Acknowledge interrupt with AIC after interrupt has been handled. 32 * (by kernel/irq.c) 33 */ 34#define irq_finish(irq) do { at91_sys_write(AT91_AIC_EOICR, 0); } while (0) 35 36 37/* 38 * IRQ interrupt symbols are the AT91xxx_ID_* symbols 39 * for IRQs handled directly through the AIC, or else the AT91_PIN_* 40 * symbols in gpio.h for ones handled indirectly as GPIOs. 41 * We make provision for 5 banks of GPIO. 42 */ 43#define NR_IRQS (NR_AIC_IRQS + (5 * 32)) 44 45/* FIQ is AIC source 0. */ 46#define FIQ_START AT91_ID_FIQ 47 48#endif 49