ARM: set vga memory base at run-time
[linux-3.10.git] / arch / arm / mach-footbridge / ebsa285-pci.c
1 /*
2  * linux/arch/arm/mach-footbridge/ebsa285-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/mach-types.h>
15
16 static int irqmap_ebsa285[] __initdata = { IRQ_IN3, IRQ_IN1, IRQ_IN0, IRQ_PCI };
17
18 static int __init ebsa285_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
19 {
20         if (dev->vendor == PCI_VENDOR_ID_CONTAQ &&
21             dev->device == PCI_DEVICE_ID_CONTAQ_82C693)
22                 switch (PCI_FUNC(dev->devfn)) {
23                 case 1: return 14;
24                 case 2: return 15;
25                 case 3: return 12;
26                 }
27
28         return irqmap_ebsa285[(slot + pin) & 3];
29 }
30
31 static struct hw_pci ebsa285_pci __initdata = {
32         .swizzle                = pci_std_swizzle,
33         .map_irq                = ebsa285_map_irq,
34         .nr_controllers         = 1,
35         .setup                  = dc21285_setup,
36         .scan                   = dc21285_scan_bus,
37         .preinit                = dc21285_preinit,
38         .postinit               = dc21285_postinit,
39 };
40
41 static int __init ebsa285_init_pci(void)
42 {
43         if (machine_is_ebsa285())
44                 pci_common_init(&ebsa285_pci);
45         return 0;
46 }
47
48 subsys_initcall(ebsa285_init_pci);