include/asm-arm/arch-moxacpu/irq.h

   1 /* asm/arch-cpe/irq.h */
   2
   3 #ifndef __ASM_ARCH_IRQ_H__
   4 #define __ASM_ARCH_IRQ_H__
   5
   6 #include <asm/hardware.h>
   7 #include <asm/io.h>
   8 #include <asm/mach/irq.h>
   9 #include <asm/arch/irqs.h>
  10 #include <asm/arch/ftpci.h>
  11 #include <asm/arch/cpe/cpe.h>
  12
  13 extern void cpe_mask_irq(unsigned int irq);
  14 extern void cpe_unmask_irq(unsigned int irq);
  15 extern void cpe_mask_ack_irq(unsigned int irq);
  16 extern void cpe_clear_irq(unsigned int intNum);
  17 extern void cpe_int_init(void);
  18
  19 #if 1   // add by Victor Yu. 05-17-2005
  20 extern struct irqchip   cpe_irq_chip;
  21 #include <linux/interrupt.h>
  22 #endif
  23
  24 static inline void irq_init_irq(void)
  25 {
  26         unsigned long flags;
  27         int irq;
  28
  29         save_and_cli(flags);
  30         cpe_int_init();
  31         restore_flags(flags);
  32         for (irq = 0; irq < NR_IRQS; irq++) {
  33                 set_irq_chip(irq, &cpe_irq_chip);
  34                 set_irq_handler(irq, do_level_IRQ);
  35                 set_irq_flags(irq, IRQF_VALID);
  36         }
  37 }
  38
  39 static inline int fixup_irq(int irq)
  40 {
  41 #ifdef CONFIG_ARCH_CPE
  42         unsigned int status;
  43         unsigned int i;
  44
  45         if( irq == IRQ_EXT_A321 ) {
  46                 status=*(volatile unsigned int *)(CPE_A321_IC_VA_BASE+IRQ_STATUS_REG);
  47                 if( status & (1<<(IRQ_A321_PCI-CPE_A321_IRQ_START)) ) { //pci irq
  48 #ifdef CONFIG_PCI
  49                 switch ( ftpci_get_irq() ) {
  50                 case 0: return VIRQ_PCI_A;
  51                 case 1: return VIRQ_PCI_B;
  52                 case 2: return VIRQ_PCI_C;
  53                 case 3: return VIRQ_PCI_D;
  54                 }
  55 #endif  // CONFIG_PCI
  56                 for( i=0; i<32 ;i++ ) {
  57                         if ( status & (1<<i) )
  58                                 return (i+CPE_A321_IRQ_START);
  59                 }
  60         }
  61
  62     }
  63 #endif  // CONFIG_ARCH_CPE
  64
  65 #ifdef CONFIG_ARCH_MOXACPU
  66 #ifdef CONFIG_PCI
  67         if ( irq == IRQ_PCI ) {
  68                 switch ( ftpci_get_irq() ) {
  69                 case 0: return VIRQ_PCI_A;
  70                 case 1: return VIRQ_PCI_B;
  71                 case 2: return VIRQ_PCI_C;
  72                 case 3: return VIRQ_PCI_D;
  73                 }
  74         }
  75 #endif  // CONFIG_PCI
  76 #endif  // CONFIG_ARCH_MOXACPU
  77
  78     return irq;
  79 }
  80
  81 #endif /* __ASM_ARCH_IRQ_H__ */