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 #include <asm/hardware.h>
  11 #include <asm/arch/irqs.h>
  12
  13 #if defined(CONFIG_ARCH_OMAP1)
  14
  15 #if defined(CONFIG_ARCH_OMAP730) && \
  16         (defined(CONFIG_ARCH_OMAP15XX) || defined(CONFIG_ARCH_OMAP16XX))
  17 #error "FIXME: OMAP730 doesn't support multiple-OMAP"
  18 #elif defined(CONFIG_ARCH_OMAP730)
  19 #define INT_IH2_IRQ             INT_730_IH2_IRQ
  20 #elif defined(CONFIG_ARCH_OMAP15XX)
  21 #define INT_IH2_IRQ             INT_1510_IH2_IRQ
  22 #elif defined(CONFIG_ARCH_OMAP16XX)
  23 #define INT_IH2_IRQ             INT_1610_IH2_IRQ
  24 #else
  25 #warning "IH2 IRQ defaulted"
  26 #define INT_IH2_IRQ             INT_1510_IH2_IRQ
  27 #endif
  28
  29                 .macro  disable_fiq
  30                 .endm
  31
  32                 .macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
  33                 ldr     \base, =IO_ADDRESS(OMAP_IH1_BASE)
  34                 ldr     \irqnr, [\base, #IRQ_ITR_REG_OFFSET]
  35                 ldr     \tmp, [\base, #IRQ_MIR_REG_OFFSET]
  36                 mov     \irqstat, #0xffffffff
  37                 bic     \tmp, \irqstat, \tmp
  38                 tst     \irqnr, \tmp
  39                 beq     1510f
  40
  41                 ldr     \irqnr, [\base, #IRQ_SIR_FIQ_REG_OFFSET]
  42                 cmp     \irqnr, #0
  43                 ldreq   \irqnr, [\base, #IRQ_SIR_IRQ_REG_OFFSET]
  44                 cmpeq   \irqnr, #INT_IH2_IRQ
  45                 ldreq   \base, =IO_ADDRESS(OMAP_IH2_BASE)
  46                 ldreq   \irqnr, [\base, #IRQ_SIR_IRQ_REG_OFFSET]
  47                 addeqs  \irqnr, \irqnr, #32
  48 1510:
  49                 .endm
  50
  51 #elif defined(CONFIG_ARCH_OMAP24XX)
  52
  53 #include <asm/arch/omap24xx.h>
  54
  55                 .macro  disable_fiq
  56                 .endm
  57
  58                 .macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
  59                 ldr     \base, =VA_IC_BASE
  60                 ldr     \irqnr, [\base, #0x98] /* IRQ pending reg 1 */
  61                 cmp     \irqnr, #0x0
  62                 bne     2222f
  63                 ldr     \irqnr, [\base, #0xb8] /* IRQ pending reg 2 */
  64                 cmp     \irqnr, #0x0
  65                 bne     2222f
  66                 ldr     \irqnr, [\base, #0xd8] /* IRQ pending reg 3 */
  67                 cmp     \irqnr, #0x0
  68 2222:
  69                 ldrne   \irqnr, [\base, #IRQ_SIR_IRQ]
  70
  71                 .endm
  72
  73                 .macro  irq_prio_table
  74                 .endm
  75
  76 #endif