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   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 #if defined(CONFIG_ARCH_OMAP730) && \
  14         (defined(CONFIG_ARCH_OMAP15XX) || defined(CONFIG_ARCH_OMAP16XX))
  15 #error "FIXME: OMAP730 doesn't support multiple-OMAP"
  16 #elif defined(CONFIG_ARCH_OMAP730)
  17 #define INT_IH2_IRQ             INT_730_IH2_IRQ
  18 #elif defined(CONFIG_ARCH_OMAP15XX)
  19 #define INT_IH2_IRQ             INT_1510_IH2_IRQ
  20 #elif defined(CONFIG_ARCH_OMAP16XX)
  21 #define INT_IH2_IRQ             INT_1610_IH2_IRQ
  22 #else
  23 #warning "IH2 IRQ defaulted"
  24 #define INT_IH2_IRQ             INT_1510_IH2_IRQ
  25 #endif
  26
  27                 .macro  disable_fiq
  28                 .endm
  29
  30                 .macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
  31                 ldr     \base, =IO_ADDRESS(OMAP_IH1_BASE)
  32                 ldr     \irqnr, [\base, #IRQ_ITR_REG_OFFSET]
  33                 ldr     \tmp, [\base, #IRQ_MIR_REG_OFFSET]
  34                 mov     \irqstat, #0xffffffff
  35                 bic     \tmp, \irqstat, \tmp
  36                 tst     \irqnr, \tmp
  37                 beq     1510f
  38
  39                 ldr     \irqnr, [\base, #IRQ_SIR_FIQ_REG_OFFSET]
  40                 cmp     \irqnr, #0
  41                 ldreq   \irqnr, [\base, #IRQ_SIR_IRQ_REG_OFFSET]
  42                 cmpeq   \irqnr, #INT_IH2_IRQ
  43                 ldreq   \base, =IO_ADDRESS(OMAP_IH2_BASE)
  44                 ldreq   \irqnr, [\base, #IRQ_SIR_IRQ_REG_OFFSET]
  45                 addeqs  \irqnr, \irqnr, #32
  46 1510:
  47                 .endm
  48
  49 #elif defined(CONFIG_ARCH_OMAP24XX)
  50
  51 #include <asm/arch/omap24xx.h>
  52
  53                 .macro  disable_fiq
  54                 .endm
  55
  56                 .macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
  57                 ldr     \base, =VA_IC_BASE
  58                 ldr     \irqnr, [\base, #0x98] /* IRQ pending reg 1 */
  59                 cmp     \irqnr, #0x0
  60                 bne     2222f
  61                 ldr     \irqnr, [\base, #0xb8] /* IRQ pending reg 2 */
  62                 cmp     \irqnr, #0x0
  63                 bne     2222f
  64                 ldr     \irqnr, [\base, #0xd8] /* IRQ pending reg 3 */
  65                 cmp     \irqnr, #0x0
  66 2222:
  67                 ldrne   \irqnr, [\base, #IRQ_SIR_IRQ]
  68
  69                 .endm
  70
  71                 .macro  irq_prio_table
  72                 .endm
  73
  74 #endif