ICW3_SIC
ICW3_SIC(2));
isa_outb(IO_ICU2 + PIC_ICW3, ICW3_SIC(IRQ_SLAVE));
ICU2_WRITE(PIC_ICW3, ICW3_SIC(IRQ_SLAVE));
REGVAL8(BONITO_PCIIO_BASE + IO_ICU2 + PIC_ICW3) = ICW3_SIC(2);
REGVAL8(BONITO_PCIIO_BASE + IO_ICU2 + PIC_ICW3) = ICW3_SIC(2);
outb(IO_ICU2 + PIC_ICW3, ICW3_SIC(IRQ_SLAVE));