1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * linux/arch/arm/mach-footbridge/netwinder-pci.c
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * PCI bios-type initialisation for PCI machines
6*4882a593Smuzhiyun *
7*4882a593Smuzhiyun * Bits taken from various places.
8*4882a593Smuzhiyun */
9*4882a593Smuzhiyun #include <linux/kernel.h>
10*4882a593Smuzhiyun #include <linux/pci.h>
11*4882a593Smuzhiyun #include <linux/init.h>
12*4882a593Smuzhiyun
13*4882a593Smuzhiyun #include <asm/irq.h>
14*4882a593Smuzhiyun #include <asm/mach/pci.h>
15*4882a593Smuzhiyun #include <asm/mach-types.h>
16*4882a593Smuzhiyun
17*4882a593Smuzhiyun /*
18*4882a593Smuzhiyun * We now use the slot ID instead of the device identifiers to select
19*4882a593Smuzhiyun * which interrupt is routed where.
20*4882a593Smuzhiyun */
netwinder_map_irq(const struct pci_dev * dev,u8 slot,u8 pin)21*4882a593Smuzhiyun static int netwinder_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
22*4882a593Smuzhiyun {
23*4882a593Smuzhiyun switch (slot) {
24*4882a593Smuzhiyun case 0: /* host bridge */
25*4882a593Smuzhiyun return 0;
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun case 9: /* CyberPro */
28*4882a593Smuzhiyun return IRQ_NETWINDER_VGA;
29*4882a593Smuzhiyun
30*4882a593Smuzhiyun case 10: /* DC21143 */
31*4882a593Smuzhiyun return IRQ_NETWINDER_ETHER100;
32*4882a593Smuzhiyun
33*4882a593Smuzhiyun case 12: /* Winbond 553 */
34*4882a593Smuzhiyun return IRQ_ISA_HARDDISK1;
35*4882a593Smuzhiyun
36*4882a593Smuzhiyun case 13: /* Winbond 89C940F */
37*4882a593Smuzhiyun return IRQ_NETWINDER_ETHER10;
38*4882a593Smuzhiyun
39*4882a593Smuzhiyun default:
40*4882a593Smuzhiyun printk(KERN_ERR "PCI: unknown device in slot %s\n",
41*4882a593Smuzhiyun pci_name(dev));
42*4882a593Smuzhiyun return 0;
43*4882a593Smuzhiyun }
44*4882a593Smuzhiyun }
45*4882a593Smuzhiyun
46*4882a593Smuzhiyun static struct hw_pci netwinder_pci __initdata = {
47*4882a593Smuzhiyun .map_irq = netwinder_map_irq,
48*4882a593Smuzhiyun .nr_controllers = 1,
49*4882a593Smuzhiyun .ops = &dc21285_ops,
50*4882a593Smuzhiyun .setup = dc21285_setup,
51*4882a593Smuzhiyun .preinit = dc21285_preinit,
52*4882a593Smuzhiyun .postinit = dc21285_postinit,
53*4882a593Smuzhiyun };
54*4882a593Smuzhiyun
netwinder_pci_init(void)55*4882a593Smuzhiyun static int __init netwinder_pci_init(void)
56*4882a593Smuzhiyun {
57*4882a593Smuzhiyun if (machine_is_netwinder())
58*4882a593Smuzhiyun pci_common_init(&netwinder_pci);
59*4882a593Smuzhiyun return 0;
60*4882a593Smuzhiyun }
61*4882a593Smuzhiyun
62*4882a593Smuzhiyun subsys_initcall(netwinder_pci_init);
63