include/asm-arm/arch-l7200/entry-macro.S

   1 /*
   2  * include/asm-arm/arch-l7200/entry-macro.S
   3  *
   4  * Low-level IRQ helper macros for L7200-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 #include <asm/hardware.h>
  11
  12                 .equ    irq_base_addr,  IO_BASE_2
  13
  14                 .macro  disable_fiq
  15                 .endm
  16
  17                 .macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
  18                 mov     \irqstat, #irq_base_addr                @ Virt addr IRQ regs
  19                 add     \irqstat, \irqstat, #0x00001000         @ Status reg
  20                 ldr     \irqstat, [\irqstat, #0]                @ get interrupts
  21                 mov     \irqnr, #0
  22 1001:           tst     \irqstat, #1
  23                 addeq   \irqnr, \irqnr, #1
  24                 moveq   \irqstat, \irqstat, lsr #1
  25                 tsteq   \irqnr, #32
  26                 beq     1001b
  27                 teq     \irqnr, #32
  28                 .endm
  29