| /* |
| * arch/mips/vr41xx/nec-cmbvr4133/irq.c |
| * |
| * Interrupt routines for the NEC CMB-VR4133 board. |
| * |
| * Author: Yoichi Yuasa <yyuasa@mvista.com, or source@mvista.com> and |
| * Alex Sapkov <asapkov@ru.mvista.com> |
| * |
| * 2003-2004 (c) MontaVista, Software, Inc. This file is licensed under |
| * the terms of the GNU General Public License version 2. This program |
| * is licensed "as is" without any warranty of any kind, whether express |
| * or implied. |
| * |
| * Support for NEC-CMBVR4133 in 2.6 |
| * Manish Lachwani (mlachwani@mvista.com) |
| */ |
| #include <linux/bitops.h> |
| #include <linux/errno.h> |
| #include <linux/init.h> |
| #include <linux/ioport.h> |
| #include <linux/interrupt.h> |
| |
| #include <asm/io.h> |
| #include <asm/i8259.h> |
| #include <asm/vr41xx/cmbvr4133.h> |
| |
| extern int vr4133_rockhopper; |
| |
| static int i8259_get_irq_number(int irq) |
| { |
| return i8259_irq(); |
| } |
| |
| void __init rockhopper_init_irq(void) |
| { |
| int i; |
| |
| if(!vr4133_rockhopper) { |
| printk(KERN_ERR "Not a Rockhopper Board \n"); |
| return; |
| } |
| |
| vr41xx_set_irq_trigger(CMBVR41XX_INTC_PIN, TRIGGER_LEVEL, SIGNAL_THROUGH); |
| vr41xx_set_irq_level(CMBVR41XX_INTC_PIN, LEVEL_HIGH); |
| vr41xx_cascade_irq(CMBVR41XX_INTC_IRQ, i8259_get_irq_number); |
| } |