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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 #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_preamble, base, tmp
  33                 .endm
  34
  35                 .macro  arch_ret_to_user, tmp1, tmp2
  36                 .endm
  37
  38                 .macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
  39                 ldr     \base, =IO_ADDRESS(OMAP_IH1_BASE)
  40                 ldr     \irqnr, [\base, #IRQ_ITR_REG_OFFSET]
  41                 ldr     \tmp, [\base, #IRQ_MIR_REG_OFFSET]
  42                 mov     \irqstat, #0xffffffff
  43                 bic     \tmp, \irqstat, \tmp
  44                 tst     \irqnr, \tmp
  45                 beq     1510f
  46
  47                 ldr     \irqnr, [\base, #IRQ_SIR_FIQ_REG_OFFSET]
  48                 cmp     \irqnr, #0
  49                 ldreq   \irqnr, [\base, #IRQ_SIR_IRQ_REG_OFFSET]
  50                 cmpeq   \irqnr, #INT_IH2_IRQ
  51                 ldreq   \base, =IO_ADDRESS(OMAP_IH2_BASE)
  52                 ldreq   \irqnr, [\base, #IRQ_SIR_IRQ_REG_OFFSET]
  53                 addeqs  \irqnr, \irqnr, #32
  54 1510:
  55                 .endm
  56
  57 #elif defined(CONFIG_ARCH_OMAP24XX)
  58
  59 #include <asm/arch/omap24xx.h>
  60
  61                 .macro  disable_fiq
  62                 .endm
  63
  64                 .macro  get_irqnr_preamble, base, tmp
  65                 .endm
  66
  67                 .macro  arch_ret_to_user, tmp1, tmp2
  68                 .endm
  69
  70                 .macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
  71                 ldr     \base, =VA_IC_BASE
  72                 ldr     \irqnr, [\base, #0x98] /* IRQ pending reg 1 */
  73                 cmp     \irqnr, #0x0
  74                 bne     2222f
  75                 ldr     \irqnr, [\base, #0xb8] /* IRQ pending reg 2 */
  76                 cmp     \irqnr, #0x0
  77                 bne     2222f
  78                 ldr     \irqnr, [\base, #0xd8] /* IRQ pending reg 3 */
  79                 cmp     \irqnr, #0x0
  80 2222:
  81                 ldrne   \irqnr, [\base, #IRQ_SIR_IRQ]
  82
  83                 .endm
  84
  85                 .macro  irq_prio_table
  86                 .endm
  87
  88 #endif