1 /*
2 * linux/arch/arm/mach-footbridge/netwinder-pci.c
3 *
4 * PCI bios-type initialisation for PCI machines
5 *
6 * Bits taken from various places.
7 */
8 #include <linux/kernel.h>
9 #include <linux/pci.h>
10 #include <linux/init.h>
11
12 #include <asm/irq.h>
13 #include <asm/mach/pci.h>
14 #include <asm/hardware/dec21285.h>
15
16 /* netwinder host-specific stuff */
netwinder_map_irq(struct pci_dev * dev,u8 slot,u8 pin)17 static int __init netwinder_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
18 {
19 #define DEV(v,d) ((v)<<16|(d))
20 switch (DEV(dev->vendor, dev->device)) {
21 case DEV(PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21142):
22 case DEV(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C885):
23 case DEV(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_YELLOWFIN):
24 return IRQ_NETWINDER_ETHER100;
25
26 case DEV(PCI_VENDOR_ID_WINBOND2, 0x5a5a):
27 return IRQ_NETWINDER_ETHER10;
28
29 case DEV(PCI_VENDOR_ID_WINBOND, PCI_DEVICE_ID_WINBOND_83C553):
30 return 0;
31
32 case DEV(PCI_VENDOR_ID_WINBOND, PCI_DEVICE_ID_WINBOND_82C105):
33 return IRQ_ISA_HARDDISK1;
34
35 case DEV(PCI_VENDOR_ID_INTERG, PCI_DEVICE_ID_INTERG_2000):
36 case DEV(PCI_VENDOR_ID_INTERG, PCI_DEVICE_ID_INTERG_2010):
37 case DEV(PCI_VENDOR_ID_INTERG, PCI_DEVICE_ID_INTERG_5000):
38 return IRQ_NETWINDER_VGA;
39
40 case DEV(PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21285):
41 return 0;
42
43 default:
44 printk(KERN_ERR "PCI: %02X:%02X [%04X:%04X] unknown device\n",
45 dev->bus->number, dev->devfn,
46 dev->vendor, dev->device);
47 return 0;
48 }
49 }
50
51 struct hw_pci netwinder_pci __initdata = {
52 .setup_resources = dc21285_setup_resources,
53 .init = dc21285_init,
54 .mem_offset = DC21285_PCI_MEM,
55 .swizzle = no_swizzle,
56 .map_irq = netwinder_map_irq,
57 };
58