linux/arch/mips/include/asm/mach-cobalt/irq.h
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   1/*
   2 * Cobalt IRQ definitions.
   3 *
   4 * This file is subject to the terms and conditions of the GNU General Public
   5 * License.  See the file "COPYING" in the main directory of this archive
   6 * for more details.
   7 *
   8 * Copyright (C) 1997 Cobalt Microserver
   9 * Copyright (C) 1997, 2003 Ralf Baechle
  10 * Copyright (C) 2001-2003 Liam Davies (ldavies@agile.tv)
  11 * Copyright (C) 2007 Yoichi Yuasa <yuasa@linux-mips.org>
  12 */
  13#ifndef _ASM_COBALT_IRQ_H
  14#define _ASM_COBALT_IRQ_H
  15
  16/*
  17 * i8259 interrupts used on Cobalt:
  18 *
  19 *      8  - RTC
  20 *      9  - PCI slot
  21 *      14 - IDE0
  22 *      15 - IDE1(no connector on board)
  23 */
  24#define I8259A_IRQ_BASE                 0
  25
  26#define PCISLOT_IRQ                     (I8259A_IRQ_BASE + 9)
  27
  28/*
  29 * CPU interrupts used on Cobalt:
  30 *
  31 *      0 - Software interrupt 0 (unused)
  32 *      1 - Software interrupt 0 (unused)
  33 *      2 - cascade GT64111
  34 *      3 - ethernet or SCSI host controller
  35 *      4 - ethernet
  36 *      5 - 16550 UART
  37 *      6 - cascade i8259
  38 *      7 - CP0 counter
  39 */
  40#define MIPS_CPU_IRQ_BASE               16
  41
  42#define GT641XX_CASCADE_IRQ             (MIPS_CPU_IRQ_BASE + 2)
  43#define RAQ2_SCSI_IRQ                   (MIPS_CPU_IRQ_BASE + 3)
  44#define ETH0_IRQ                        (MIPS_CPU_IRQ_BASE + 3)
  45#define QUBE1_ETH0_IRQ                  (MIPS_CPU_IRQ_BASE + 4)
  46#define ETH1_IRQ                        (MIPS_CPU_IRQ_BASE + 4)
  47#define SERIAL_IRQ                      (MIPS_CPU_IRQ_BASE + 5)
  48#define SCSI_IRQ                        (MIPS_CPU_IRQ_BASE + 5)
  49#define I8259_CASCADE_IRQ               (MIPS_CPU_IRQ_BASE + 6)
  50
  51#define GT641XX_IRQ_BASE                24
  52
  53#include <asm/irq_gt641xx.h>
  54
  55#define NR_IRQS                                 (GT641XX_PCI_INT3_IRQ + 1)
  56
  57#endif /* _ASM_COBALT_IRQ_H */
  58