include/asm-arm/arch-moxart/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-arm/mach/irq.h>
   9 #ifdef CONFIG_PCI
  10 #include <asm/arch/ftpci.h>
  11 #endif  // CONFIG_PCI
  12
  13 #if 0   // mask by Victor Yu. 03-15-2007
  14 extern void cpe_mask_irq(unsigned int irq);
  15 extern void cpe_unmask_irq(unsigned int irq);
  16 extern void cpe_mask_ack_irq(unsigned int irq);
  17 extern void cpe_clear_irq(unsigned int intNum);
  18 extern void cpe_int_init(void);
  19
  20 #if 1   // add by Victor Yu. 05-17-2005
  21 extern struct irqchip   cpe_irq_chip;
  22 #include <linux/interrupt.h>
  23 #endif
  24
  25 static inline void irq_init_irq(void)
  26 {
  27         unsigned long flags;
  28         int irq;
  29
  30         save_and_cli(flags);
  31         cpe_int_init();
  32         restore_flags(flags);
  33 #if 1   // add by Victor Yu. 03-15-2007
  34         cpe_irq_chip.ack = cpe_mask_ack_irq;
  35         cpe_irq_chip.mask = cpe_mask_irq;
  36         cpe_irq_chip.unmask = cpe_unmask_irq;
  37 #endif
  38         for (irq = 0; irq < NR_IRQS; irq++) {
  39                 set_irq_chip(irq, &cpe_irq_chip);
  40                 set_irq_handler(irq, do_level_IRQ);
  41                 set_irq_flags(irq, IRQF_VALID);
  42         }
  43 }
  44 #endif
  45
  46 static inline int fixup_irq(int irq)
  47 {
  48 #ifdef CONFIG_ARCH_CPE
  49         unsigned int status;
  50         unsigned int i;
  51
  52         if( irq == IRQ_EXT_A321 ) {
  53                 status=*(volatile unsigned int *)(CPE_A321_IC_VA_BASE+IRQ_STATUS_REG);
  54                 if( status & (1<<(IRQ_A321_PCI-CPE_A321_IRQ_START)) ) { //pci irq
  55 #ifdef CONFIG_PCI
  56                 switch ( ftpci_get_irq() ) {
  57                 case 0: return VIRQ_PCI_A;
  58                 case 1: return VIRQ_PCI_B;
  59                 case 2: return VIRQ_PCI_C;
  60                 case 3: return VIRQ_PCI_D;
  61                 }
  62 #endif  // CONFIG_PCI
  63                 for( i=0; i<32 ;i++ ) {
  64                         if ( status & (1<<i) )
  65                                 return (i+CPE_A321_IRQ_START);
  66                 }
  67         }
  68
  69     }
  70 #endif  // CONFIG_ARCH_CPE
  71
  72 #ifdef CONFIG_ARCH_IA240
  73 #ifdef CONFIG_PCI
  74         if ( irq == IRQ_PCI ) {
  75                 switch ( ftpci_get_irq() ) {
  76                 case 0: return VIRQ_PCI_A;
  77                 case 1: return VIRQ_PCI_B;
  78                 case 2: return VIRQ_PCI_C;
  79                 case 3: return VIRQ_PCI_D;
  80                 }
  81         }
  82 #endif  // CONFIG_PCI
  83 #endif  // CONFIG_ARCH_IA240
  84
  85     return irq;
  86 }
  87
  88 #endif /* __ASM_ARCH_IRQ_H__ */