arch/arm/plat-mxc/include/mach/irqs.h

   1 /*
   2  *  Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved.
   3  */
   4
   5 /*
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10
  11 #ifndef __ASM_ARCH_MXC_IRQS_H__
  12 #define __ASM_ARCH_MXC_IRQS_H__
  13
  14 #include <asm-generic/gpio.h>
  15
  16 /*
  17  * SoCs with GIC interrupt controller have 160 IRQs, those with TZIC
  18  * have 128 IRQs, and those with AVIC have 64.
  19  *
  20  * To support single image, the biggest number should be defined on
  21  * top of the list.
  22  */
  23 #if defined CONFIG_ARM_GIC
  24 #define MXC_INTERNAL_IRQS       160
  25 #elif defined CONFIG_MXC_TZIC
  26 #define MXC_INTERNAL_IRQS       128
  27 #else
  28 #define MXC_INTERNAL_IRQS       64
  29 #endif
  30
  31 #define MXC_GPIO_IRQ_START      MXC_INTERNAL_IRQS
  32
  33 /*
  34  * The next 16 interrupts are for board specific purposes.  Since
  35  * the kernel can only run on one machine at a time, we can re-use
  36  * these.  If you need more, increase MXC_BOARD_IRQS, but keep it
  37  * within sensible limits.
  38  */
  39 #define MXC_BOARD_IRQ_START     (MXC_INTERNAL_IRQS + ARCH_NR_GPIOS)
  40
  41 #ifdef CONFIG_MACH_MX31ADS_WM1133_EV1
  42 #define MXC_BOARD_IRQS  80
  43 #else
  44 #define MXC_BOARD_IRQS  16
  45 #endif
  46
  47 #define MXC_IPU_IRQ_START       (MXC_BOARD_IRQ_START + MXC_BOARD_IRQS)
  48
  49 #ifdef CONFIG_MX3_IPU_IRQS
  50 #define MX3_IPU_IRQS CONFIG_MX3_IPU_IRQS
  51 #else
  52 #define MX3_IPU_IRQS 0
  53 #endif
  54 /* REVISIT: Add IPU irqs on IMX51 */
  55
  56 #define NR_IRQS                 (MXC_IPU_IRQ_START + MX3_IPU_IRQS)
  57
  58 extern int imx_irq_set_priority(unsigned char irq, unsigned char prio);
  59
  60 /* all normal IRQs can be FIQs */
  61 #define FIQ_START       0
  62 /* switch between IRQ and FIQ */
  63 extern int mxc_set_irq_fiq(unsigned int irq, unsigned int type);
  64
  65 #endif /* __ASM_ARCH_MXC_IRQS_H__ */