arch/arm/plat-s3c64xx/include/plat/irqs.h

   1 /* linux/arch/arm/plat-s3c64xx/include/mach/irqs.h
   2  *
   3  * Copyright 2008 Openmoko, Inc.
   4  * Copyright 2008 Simtec Electronics
   5  *      Ben Dooks <ben@simtec.co.uk>
   6  *      http://armlinux.simtec.co.uk/
   7  *
   8  * S3C64XX - Common IRQ support
   9  */
  10
  11 #ifndef __ASM_PLAT_S3C64XX_IRQS_H
  12 #define __ASM_PLAT_S3C64XX_IRQS_H __FILE__
  13
  14 /* we keep the first set of CPU IRQs out of the range of
  15  * the ISA space, so that the PC104 has them to itself
  16  * and we don't end up having to do horrible things to the
  17  * standard ISA drivers....
  18  */
  19
  20 #define S3C_IRQ_OFFSET  (16)
  21
  22 #define S3C_IRQ(x)      ((x) + S3C_IRQ_OFFSET)
  23
  24 /* Since the IRQ_EINT(x) are a linear mapping on current s3c64xx series
  25  * we just defined them as an IRQ_EINT(x) macro from S3C_IRQ_EINT_BASE
  26  * which we place after the pair of VICs. */
  27
  28 #define S3C_IRQ_EINT_BASE       S3C_IRQ(64)
  29
  30 #define S3C_EINT(x)     ((x) + S3C_IRQ_EINT_BASE)
  31
  32 /* Define NR_IRQs here, machine specific can always re-define.
  33  * Currently the IRQ_EINT27 is the last one we can have. */
  34
  35 #define NR_IRQS (S3C_EINT(27) + 1)
  36
  37 #endif /* __ASM_PLAT_S3C64XX_IRQS_H */
  38