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

   1 /*
   2  * include/asm-arm/arch-omap/entry-macro.S
   3  *
   4  * Low-level IRQ helper macros for OMAP-based platforms
   5  *
   6  * This file is licensed under  the terms of the GNU General Public
   7  * License version 2. This program is licensed "as is" without any
   8  * warranty of any kind, whether express or implied.
   9  */
  10
  11                 .macro  disable_fiq
  12                 .endm
  13
  14                 .macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
  15                 ldr     \base, =IO_ADDRESS(OMAP_IH1_BASE)
  16                 ldr     \irqnr, [\base, #IRQ_ITR_REG_OFFSET]
  17                 ldr     \tmp, [\base, #IRQ_MIR_REG_OFFSET]
  18                 mov     \irqstat, #0xffffffff
  19                 bic     \tmp, \irqstat, \tmp
  20                 tst     \irqnr, \tmp
  21                 beq     1510f
  22
  23                 ldr     \irqnr, [\base, #IRQ_SIR_FIQ_REG_OFFSET]
  24                 cmp     \irqnr, #0
  25                 ldreq   \irqnr, [\base, #IRQ_SIR_IRQ_REG_OFFSET]
  26                 cmpeq   \irqnr, #INT_IH2_IRQ
  27                 ldreq   \base, =IO_ADDRESS(OMAP_IH2_BASE)
  28                 ldreq   \irqnr, [\base, #IRQ_SIR_IRQ_REG_OFFSET]
  29                 addeqs  \irqnr, \irqnr, #32
  30 1510:
  31                 .endm
  32