release/src-rt-6.x.4708/linux/linux-2.6.36/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 /*
  15  * SoCs with TZIC interrupt controller have 128 IRQs, those with AVIC have 64
  16  */
  17 #ifdef CONFIG_MXC_TZIC
  18 #define MXC_INTERNAL_IRQS       128
  19 #else
  20 #define MXC_INTERNAL_IRQS       64
  21 #endif
  22
  23 #define MXC_GPIO_IRQ_START      MXC_INTERNAL_IRQS
  24
  25 /* these are ordered by size to support multi-SoC kernels */
  26 #if defined CONFIG_ARCH_MX2
  27 #define MXC_GPIO_IRQS           (32 * 6)
  28 #elif defined CONFIG_ARCH_MX1
  29 #define MXC_GPIO_IRQS           (32 * 4)
  30 #elif defined CONFIG_ARCH_MX25
  31 #define MXC_GPIO_IRQS           (32 * 4)
  32 #elif defined CONFIG_ARCH_MX5
  33 #define MXC_GPIO_IRQS           (32 * 4)
  34 #elif defined CONFIG_ARCH_MXC91231
  35 #define MXC_GPIO_IRQS           (32 * 4)
  36 #elif defined CONFIG_ARCH_MX3
  37 #define MXC_GPIO_IRQS           (32 * 3)
  38 #endif
  39
  40 /*
  41  * The next 16 interrupts are for board specific purposes.  Since
  42  * the kernel can only run on one machine at a time, we can re-use
  43  * these.  If you need more, increase MXC_BOARD_IRQS, but keep it
  44  * within sensible limits.
  45  */
  46 #define MXC_BOARD_IRQ_START     (MXC_INTERNAL_IRQS + MXC_GPIO_IRQS)
  47
  48 #ifdef CONFIG_MACH_MX31ADS_WM1133_EV1
  49 #define MXC_BOARD_IRQS  80
  50 #else
  51 #define MXC_BOARD_IRQS  16
  52 #endif
  53
  54 #define MXC_IPU_IRQ_START       (MXC_BOARD_IRQ_START + MXC_BOARD_IRQS)
  55
  56 #ifdef CONFIG_MX3_IPU_IRQS
  57 #define MX3_IPU_IRQS CONFIG_MX3_IPU_IRQS
  58 #else
  59 #define MX3_IPU_IRQS 0
  60 #endif
  61 /* REVISIT: Add IPU irqs on IMX51 */
  62
  63 #define NR_IRQS                 (MXC_IPU_IRQ_START + MX3_IPU_IRQS)
  64
  65 extern int imx_irq_set_priority(unsigned char irq, unsigned char prio);
  66
  67 /* all normal IRQs can be FIQs */
  68 #define FIQ_START       0
  69 /* switch betwean IRQ and FIQ */
  70 extern int mxc_set_irq_fiq(unsigned int irq, unsigned int type);
  71
  72 #endif /* __ASM_ARCH_MXC_IRQS_H__ */