The IRQ line calculation is more or less hardcoded today. Instead, let's
write it as an algorithmic function that theoretically allows an arbitrary
number of PCI slots.
Signed-off-by: Alexander Graf <agraf@suse.de>
static int mpc85xx_pci_map_irq(PCIDevice *pci_dev, int irq_num)
{
- int devno = pci_dev->devfn >> 3, ret = 0;
+ int devno = pci_dev->devfn >> 3;
+ int ret;
- switch (devno) {
- /* Two PCI slot */
- case 0x11:
- case 0x12:
- ret = (irq_num + devno - 0x10) % 4;
- break;
- default:
- printf("Error:%s:unknown dev number\n", __func__);
- }
+ ret = (irq_num + devno) % 4;
pci_debug("%s: devfn %x irq %d -> %d devno:%x\n", __func__,
pci_dev->devfn, irq_num, ret, devno);