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