_DC21285_IRQ
for (irq = _DC21285_IRQ(0); irq < _DC21285_IRQ(20); irq++) {
#define IRQ_CONRX _DC21285_IRQ(0)
#define IRQ_CONTX _DC21285_IRQ(1)
#define IRQ_TIMER1 _DC21285_IRQ(2)
#define IRQ_TIMER2 _DC21285_IRQ(3)
#define IRQ_TIMER3 _DC21285_IRQ(4)
#define IRQ_IN0 _DC21285_IRQ(5)
#define IRQ_IN1 _DC21285_IRQ(6)
#define IRQ_IN2 _DC21285_IRQ(7)
#define IRQ_IN3 _DC21285_IRQ(8)
#define IRQ_DOORBELLHOST _DC21285_IRQ(9)
#define IRQ_DMA1 _DC21285_IRQ(10)
#define IRQ_DMA2 _DC21285_IRQ(11)
#define IRQ_PCI _DC21285_IRQ(12)
#define IRQ_SDRAMPARITY _DC21285_IRQ(13)
#define IRQ_I2OINPOST _DC21285_IRQ(14)
#define IRQ_PCI_ABORT _DC21285_IRQ(15)
#define IRQ_PCI_SERR _DC21285_IRQ(16)
#define IRQ_DISCARD_TIMER _DC21285_IRQ(17)
#define IRQ_PCI_DPERR _DC21285_IRQ(18)
#define IRQ_PCI_PERR _DC21285_IRQ(19)