1/* 2 * include/asm-arm/arch-tbox/irq.h 3 * 4 * Copyright (C) 1998, 1999, 2000 Philip Blundell 5 */ 6 7/* 8 * This program is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License 10 * as published by the Free Software Foundation; either version 11 * 2 of the License, or (at your option) any later version. 12 */ 13 14#include <asm/io.h> 15 16#define fixup_irq(x) (x) 17 18extern unsigned long soft_irq_mask; 19 20static void tbox_mask_irq(unsigned int irq) 21{ 22 __raw_writel(0, INTCONT + (irq << 2)); 23 soft_irq_mask &= ~(1<<irq); 24} 25 26static void tbox_unmask_irq(unsigned int irq) 27{ 28 soft_irq_mask |= (1<<irq); 29 __raw_writel(1, INTCONT + (irq << 2)); 30} 31 32static __inline__ void irq_init_irq(void) 33{ 34 unsigned int i; 35 36 /* Disable all interrupts initially. */ 37 for (i = 0; i < NR_IRQS; i++) { 38 if (i <= 10 || (i >= 12 && i <= 13)) { 39 irq_desc[i].valid = 1; 40 irq_desc[i].probe_ok = 0; 41 irq_desc[i].mask_ack = tbox_mask_irq; 42 irq_desc[i].mask = tbox_mask_irq; 43 irq_desc[i].unmask = tbox_unmask_irq; 44 tbox_mask_irq(i); 45 } else { 46 irq_desc[i].valid = 0; 47 irq_desc[i].probe_ok = 0; 48 } 49 } 50} 51