| /* |
| * include/asm-arm/arch-tbox/irq.h |
| * |
| * Copyright (C) 1998, 1999, 2000 Philip Blundell |
| */ |
| |
| /* |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version |
| * 2 of the License, or (at your option) any later version. |
| */ |
| |
| #include <asm/io.h> |
| |
| #define fixup_irq(x) (x) |
| |
| extern unsigned long soft_irq_mask; |
| |
| static void tbox_mask_irq(unsigned int irq) |
| { |
| __raw_writel(0, INTCONT + (irq << 2)); |
| soft_irq_mask &= ~(1<<irq); |
| } |
| |
| static void tbox_unmask_irq(unsigned int irq) |
| { |
| soft_irq_mask |= (1<<irq); |
| __raw_writel(1, INTCONT + (irq << 2)); |
| } |
| |
| static __inline__ void irq_init_irq(void) |
| { |
| unsigned int i; |
| |
| /* Disable all interrupts initially. */ |
| for (i = 0; i < NR_IRQS; i++) { |
| if (i <= 10 || (i >= 12 && i <= 13)) { |
| irq_desc[i].valid = 1; |
| irq_desc[i].probe_ok = 0; |
| irq_desc[i].mask_ack = tbox_mask_irq; |
| irq_desc[i].mask = tbox_mask_irq; |
| irq_desc[i].unmask = tbox_unmask_irq; |
| tbox_mask_irq(i); |
| } else { |
| irq_desc[i].valid = 0; |
| irq_desc[i].probe_ok = 0; |
| } |
| } |
| } |
