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 #if defined(CONFIG_ARCH_OMAP1)
  12
  13                 .macro  disable_fiq
  14                 .endm
  15
  16                 .macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
  17                 ldr     \base, =IO_ADDRESS(OMAP_IH1_BASE)
  18                 ldr     \irqnr, [\base, #IRQ_ITR_REG_OFFSET]
  19                 ldr     \tmp, [\base, #IRQ_MIR_REG_OFFSET]
  20                 mov     \irqstat, #0xffffffff
  21                 bic     \tmp, \irqstat, \tmp
  22                 tst     \irqnr, \tmp
  23                 beq     1510f
  24
  25                 ldr     \irqnr, [\base, #IRQ_SIR_FIQ_REG_OFFSET]
  26                 cmp     \irqnr, #0
  27                 ldreq   \irqnr, [\base, #IRQ_SIR_IRQ_REG_OFFSET]
  28                 cmpeq   \irqnr, #INT_IH2_IRQ
  29                 ldreq   \base, =IO_ADDRESS(OMAP_IH2_BASE)
  30                 ldreq   \irqnr, [\base, #IRQ_SIR_IRQ_REG_OFFSET]
  31                 addeqs  \irqnr, \irqnr, #32
  32 1510:
  33                 .endm
  34
  35 #elif defined(CONFIG_ARCH_OMAP24XX)
  36
  37 #include <asm/arch/omap24xx.h>
  38
  39                 .macro  disable_fiq
  40                 .endm
  41
  42                 .macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
  43                 ldr     \base, =VA_IC_BASE
  44                 ldr     \irqnr, [\base, #0x98] /* IRQ pending reg 1 */
  45                 cmp     \irqnr, #0x0
  46                 bne     2222f
  47                 ldr     \irqnr, [\base, #0xb8] /* IRQ pending reg 2 */
  48                 cmp     \irqnr, #0x0
  49                 bne     2222f
  50                 ldr     \irqnr, [\base, #0xd8] /* IRQ pending reg 3 */
  51                 cmp     \irqnr, #0x0
  52 2222:
  53                 ldrne   \irqnr, [\base, #IRQ_SIR_IRQ]
  54
  55                 .endm
  56
  57                 .macro  irq_prio_table
  58                 .endm
  59
  60 #endif