include/asm-arm/arch-s3c3410/entry-macro.S

   1 /*
   2  *  arch/armnommu/mach-s3c3410/entry-macro.S
   3  *
   4  *  Copyright (C) 2003 Hyok S. Choi <hyok.choi@samsung.com>
   5  *  Samsung Electronics Co.,Ltd.
   6  *
   7  *  defines machine dependent entry macros.
   8  *  included in the arch/armnommu/kernel/entry.S
   9  *
  10  */
  11
  12 #if defined(CONFIG_ARCH_S3C3410)
  13                 .macro  disable_fiq
  14                 .endm
  15
  16                 .macro get_irqnr_and_base, irqnr, irqstat, base, tmp
  17
  18                 ldr     \irqstat, =(S3C3410X_INTPND)    @ load address of interrupt pending
  19 @               ldr     \irqstat, [\irqstat]    @ register INTPND
  20                 ldr     \irqnr, [\irqstat]      @ \irqnr = INTPND
  21                 add     \irqstat, \irqstat, #(S3C3410X_INTMSK-S3C3410X_INTPND)
  22                 ldr     \irqstat, [\irqstat]    @ \irqstat = INTMSK
  23                 and     \irqstat, \irqnr, \irqstat @ \irqstat = (INTPND & INTMSK)
  24
  25                 mov     \irqnr, #0
  26 1001:
  27                 tst     \irqstat, #1
  28                 bne     1002f
  29                 add     \irqnr, \irqnr, #1
  30                 mov     \irqstat, \irqstat, lsr #1
  31                 cmp     \irqnr, #NR_IRQS
  32                 bcc     1001b
  33 1002:           /* EQ will be set if we reach 32 */
  34                 .endm
  35
  36                 .macro irq_prio_table
  37                 .endm
  38 #endif