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kernel/linux-rt-4.4.41/arch/mips/include/asm/mach-pnx833x/irq.h 1.93 KB
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  /*
   *  irq.h: IRQ mappings for PNX833X.
   *
   *  Copyright 2008 NXP Semiconductors
   *	  Chris Steel <chris.steel@nxp.com>
   *    Daniel Laird <daniel.j.laird@nxp.com>
   *
   *  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.
   *
   *  This program is distributed in the hope that it will be useful,
   *  but WITHOUT ANY WARRANTY; without even the implied warranty of
   *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   *  GNU General Public License for more details.
   *
   *  You should have received a copy of the GNU General Public License
   *  along with this program; if not, write to the Free Software
   *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
   */
  
  #ifndef __ASM_MIPS_MACH_PNX833X_IRQ_H
  #define __ASM_MIPS_MACH_PNX833X_IRQ_H
  /*
   * The "IRQ numbers" are completely virtual.
   *
   * In PNX8330/1, we have 48 interrupt lines, numbered from 1 to 48.
   * Let's use numbers 1..48 for PIC interrupts, number 0 for timer interrupt,
   * numbers 49..64 for (virtual) GPIO interrupts.
   *
   * In PNX8335, we have 57 interrupt lines, numbered from 1 to 57,
   * connected to PIC, which uses core hardware interrupt 2, and also
   * a timer interrupt through hardware interrupt 5.
   * Let's use numbers 1..64 for PIC interrupts, number 0 for timer interrupt,
   * numbers 65..80 for (virtual) GPIO interrupts.
   *
   */
  #if defined(CONFIG_SOC_PNX8335)
  	#define PNX833X_PIC_NUM_IRQ			58
  #else
  	#define PNX833X_PIC_NUM_IRQ			37
  #endif
  
  #define MIPS_CPU_NUM_IRQ				8
  #define PNX833X_GPIO_NUM_IRQ			16
  
  #define MIPS_CPU_IRQ_BASE				0
  #define PNX833X_PIC_IRQ_BASE			(MIPS_CPU_IRQ_BASE + MIPS_CPU_NUM_IRQ)
  #define PNX833X_GPIO_IRQ_BASE			(PNX833X_PIC_IRQ_BASE + PNX833X_PIC_NUM_IRQ)
  #define NR_IRQS							(MIPS_CPU_NUM_IRQ + PNX833X_PIC_NUM_IRQ + PNX833X_GPIO_NUM_IRQ)
  
  #endif