linux/arch/mips/include/asm/mach-pnx833x/irq.h
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   1/*
   2 *  irq.h: IRQ mappings for PNX833X.
   3 *
   4 *  Copyright 2008 NXP Semiconductors
   5 *        Chris Steel <chris.steel@nxp.com>
   6 *    Daniel Laird <daniel.j.laird@nxp.com>
   7 *
   8 *  This program is free software; you can redistribute it and/or modify
   9 *  it under the terms of the GNU General Public License as published by
  10 *  the Free Software Foundation; either version 2 of the License, or
  11 *  (at your option) any later version.
  12 *
  13 *  This program is distributed in the hope that it will be useful,
  14 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 *  GNU General Public License for more details.
  17 *
  18 *  You should have received a copy of the GNU General Public License
  19 *  along with this program; if not, write to the Free Software
  20 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21 */
  22
  23#ifndef __ASM_MIPS_MACH_PNX833X_IRQ_H
  24#define __ASM_MIPS_MACH_PNX833X_IRQ_H
  25/*
  26 * The "IRQ numbers" are completely virtual.
  27 *
  28 * In PNX8330/1, we have 48 interrupt lines, numbered from 1 to 48.
  29 * Let's use numbers 1..48 for PIC interrupts, number 0 for timer interrupt,
  30 * numbers 49..64 for (virtual) GPIO interrupts.
  31 *
  32 * In PNX8335, we have 57 interrupt lines, numbered from 1 to 57,
  33 * connected to PIC, which uses core hardware interrupt 2, and also
  34 * a timer interrupt through hardware interrupt 5.
  35 * Let's use numbers 1..64 for PIC interrupts, number 0 for timer interrupt,
  36 * numbers 65..80 for (virtual) GPIO interrupts.
  37 *
  38 */
  39#if defined(CONFIG_SOC_PNX8335)
  40        #define PNX833X_PIC_NUM_IRQ                     58
  41#else
  42        #define PNX833X_PIC_NUM_IRQ                     37
  43#endif
  44
  45#define MIPS_CPU_NUM_IRQ                                8
  46#define PNX833X_GPIO_NUM_IRQ                    16
  47
  48#define MIPS_CPU_IRQ_BASE                               0
  49#define PNX833X_PIC_IRQ_BASE                    (MIPS_CPU_IRQ_BASE + MIPS_CPU_NUM_IRQ)
  50#define PNX833X_GPIO_IRQ_BASE                   (PNX833X_PIC_IRQ_BASE + PNX833X_PIC_NUM_IRQ)
  51#define NR_IRQS                                                 (MIPS_CPU_NUM_IRQ + PNX833X_PIC_NUM_IRQ + PNX833X_GPIO_NUM_IRQ)
  52
  53#endif
  54