arch/arm/mach-omap1/include/mach/entry-macro.S

   1 /*
   2  * arch/arm/mach-omap1/include/mach/entry-macro.S
   3  *
   4  * Low-level IRQ helper macros for OMAP-based platforms
   5  *
   6  * Copyright (C) 2009 Texas Instruments
   7  *
   8  * This file is licensed under  the terms of the GNU General Public
   9  * License version 2. This program is licensed "as is" without any
  10  * warranty of any kind, whether express or implied.
  11  */
  12 #include <mach/hardware.h>
  13 #include <mach/io.h>
  14 #include <mach/irqs.h>
  15 #include <asm/hardware/gic.h>
  16
  17 #if (defined(CONFIG_ARCH_OMAP730)||defined(CONFIG_ARCH_OMAP850)) && \
  18         (defined(CONFIG_ARCH_OMAP15XX) || defined(CONFIG_ARCH_OMAP16XX))
  19 #error "FIXME: OMAP7XX doesn't support multiple-OMAP"
  20 #elif defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850)
  21 #define INT_IH2_IRQ             INT_7XX_IH2_IRQ
  22 #elif defined(CONFIG_ARCH_OMAP15XX)
  23 #define INT_IH2_IRQ             INT_1510_IH2_IRQ
  24 #elif defined(CONFIG_ARCH_OMAP16XX)
  25 #define INT_IH2_IRQ             INT_1610_IH2_IRQ
  26 #else
  27 #warning "IH2 IRQ defaulted"
  28 #define INT_IH2_IRQ             INT_1510_IH2_IRQ
  29 #endif
  30
  31                 .macro  disable_fiq
  32                 .endm
  33
  34                 .macro  get_irqnr_preamble, base, tmp
  35                 .endm
  36
  37                 .macro  arch_ret_to_user, tmp1, tmp2
  38                 .endm
  39
  40                 .macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
  41                 ldr     \base, =OMAP1_IO_ADDRESS(OMAP_IH1_BASE)
  42                 ldr     \irqnr, [\base, #IRQ_ITR_REG_OFFSET]
  43                 ldr     \tmp, [\base, #IRQ_MIR_REG_OFFSET]
  44                 mov     \irqstat, #0xffffffff
  45                 bic     \tmp, \irqstat, \tmp
  46                 tst     \irqnr, \tmp
  47                 beq     1510f
  48
  49                 ldr     \irqnr, [\base, #IRQ_SIR_FIQ_REG_OFFSET]
  50                 cmp     \irqnr, #0
  51                 ldreq   \irqnr, [\base, #IRQ_SIR_IRQ_REG_OFFSET]
  52                 cmpeq   \irqnr, #INT_IH2_IRQ
  53                 ldreq   \base, =OMAP1_IO_ADDRESS(OMAP_IH2_BASE)
  54                 ldreq   \irqnr, [\base, #IRQ_SIR_IRQ_REG_OFFSET]
  55                 addeqs  \irqnr, \irqnr, #32
  56 1510:
  57                 .endm
  58