xref: /OK3568_Linux_fs/kernel/arch/mips/pci/fixup-tb0287.c (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-or-later
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun  *  fixup-tb0287.c, The TANBAC TB0287 specific PCI fixups.
4*4882a593Smuzhiyun  *
5*4882a593Smuzhiyun  *  Copyright (C) 2005	Yoichi Yuasa <yuasa@linux-mips.org>
6*4882a593Smuzhiyun  */
7*4882a593Smuzhiyun #include <linux/init.h>
8*4882a593Smuzhiyun #include <linux/pci.h>
9*4882a593Smuzhiyun 
10*4882a593Smuzhiyun #include <asm/vr41xx/tb0287.h>
11*4882a593Smuzhiyun 
pcibios_map_irq(const struct pci_dev * dev,u8 slot,u8 pin)12*4882a593Smuzhiyun int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
13*4882a593Smuzhiyun {
14*4882a593Smuzhiyun 	unsigned char bus;
15*4882a593Smuzhiyun 	int irq = -1;
16*4882a593Smuzhiyun 
17*4882a593Smuzhiyun 	bus = dev->bus->number;
18*4882a593Smuzhiyun 	if (bus == 0) {
19*4882a593Smuzhiyun 		switch (slot) {
20*4882a593Smuzhiyun 		case 16:
21*4882a593Smuzhiyun 			irq = TB0287_SM501_IRQ;
22*4882a593Smuzhiyun 			break;
23*4882a593Smuzhiyun 		case 17:
24*4882a593Smuzhiyun 			irq = TB0287_SIL680A_IRQ;
25*4882a593Smuzhiyun 			break;
26*4882a593Smuzhiyun 		default:
27*4882a593Smuzhiyun 			break;
28*4882a593Smuzhiyun 		}
29*4882a593Smuzhiyun 	} else if (bus == 1) {
30*4882a593Smuzhiyun 		switch (PCI_SLOT(dev->devfn)) {
31*4882a593Smuzhiyun 		case 0:
32*4882a593Smuzhiyun 			irq = TB0287_PCI_SLOT_IRQ;
33*4882a593Smuzhiyun 			break;
34*4882a593Smuzhiyun 		case 2:
35*4882a593Smuzhiyun 		case 3:
36*4882a593Smuzhiyun 			irq = TB0287_RTL8110_IRQ;
37*4882a593Smuzhiyun 			break;
38*4882a593Smuzhiyun 		default:
39*4882a593Smuzhiyun 			break;
40*4882a593Smuzhiyun 		}
41*4882a593Smuzhiyun 	} else if (bus > 1) {
42*4882a593Smuzhiyun 		irq = TB0287_PCI_SLOT_IRQ;
43*4882a593Smuzhiyun 	}
44*4882a593Smuzhiyun 
45*4882a593Smuzhiyun 	return irq;
46*4882a593Smuzhiyun }
47*4882a593Smuzhiyun 
48*4882a593Smuzhiyun /* Do platform specific device initialization at pci_enable_device() time */
pcibios_plat_dev_init(struct pci_dev * dev)49*4882a593Smuzhiyun int pcibios_plat_dev_init(struct pci_dev *dev)
50*4882a593Smuzhiyun {
51*4882a593Smuzhiyun 	return 0;
52*4882a593Smuzhiyun }
53