1/*
2 * FILE NAME
3 *	arch/mips/vr41xx/nec-eagle/pci_fixup.c
4 *
5 * BRIEF MODULE DESCRIPTION
6 *	The NEC Eagle/Hawk Board specific PCI fixups.
7 *
8 * Author: Yoichi Yuasa
9 *         yyuasa@mvista.com or source@mvista.com
10 *
11 * Copyright 2001,2002 MontaVista Software Inc.
12 *
13 *  This program is free software; you can redistribute it and/or modify it
14 *  under the terms of the GNU General Public License as published by the
15 *  Free Software Foundation; either version 2 of the License, or (at your
16 *  option) any later version.
17 *
18 *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
19 *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
20 *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 *  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
23 *  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
24 *  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
25 *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
26 *  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
27 *  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 *
29 *  You should have received a copy of the GNU General Public License along
30 *  with this program; if not, write to the Free Software Foundation, Inc.,
31 *  675 Mass Ave, Cambridge, MA 02139, USA.
32 */
33/*
34 * Changes:
35 *  MontaVista Software Inc. <yyuasa@mvista.com> or <source@mvista.com>
36 *  - Moved mips_pci_channels[] to arch/mips/vr41xx/vr4122/eagle/setup.c.
37 *  - Added support for NEC Hawk.
38 *
39 *  Paul Mundt <lethal@chaoticdreams.org>
40 *  - Fix empty break statements, remove useless CONFIG_PCI.
41 *
42 *  MontaVista Software Inc. <yyuasa@mvista.com> or <source@mvista.com>
43 *  - New creation, NEC Eagle is supported.
44 */
45#include <linux/config.h>
46#include <linux/init.h>
47#include <linux/pci.h>
48
49#include <asm/vr41xx/eagle.h>
50#include <asm/vr41xx/vrc4173.h>
51
52void __init pcibios_fixup_resources(struct pci_dev *dev)
53{
54}
55
56void __init pcibios_fixup(void)
57{
58}
59
60void __init pcibios_fixup_irqs(void)
61{
62	struct pci_dev *dev;
63	u8 slot, func, pin;
64
65	pci_for_each_dev(dev) {
66		slot = PCI_SLOT(dev->devfn);
67		func = PCI_FUNC(dev->devfn);
68		pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin);
69		dev->irq = 0;
70
71		switch (slot) {
72		case 8:
73			switch (pin) {
74			case 1:
75				dev->irq = CP_INTA_IRQ;
76				break;
77			case 2:
78				dev->irq = CP_INTB_IRQ;
79				break;
80			case 3:
81				dev->irq = CP_INTC_IRQ;
82				break;
83			case 4:
84				dev->irq = CP_INTD_IRQ;
85				break;
86			}
87			break;
88		case 9:
89			switch (pin) {
90			case 1:
91				dev->irq = CP_INTD_IRQ;
92				break;
93			case 2:
94				dev->irq = CP_INTA_IRQ;
95				break;
96			case 3:
97				dev->irq = CP_INTB_IRQ;
98				break;
99			case 4:
100				dev->irq = CP_INTC_IRQ;
101				break;
102			}
103			break;
104		case 10:
105			switch (pin) {
106			case 1:
107				dev->irq = CP_INTC_IRQ;
108				break;
109			case 2:
110				dev->irq = CP_INTD_IRQ;
111				break;
112			case 3:
113				dev->irq = CP_INTA_IRQ;
114				break;
115			case 4:
116				dev->irq = CP_INTB_IRQ;
117				break;
118			}
119			break;
120		case 12:
121			dev->irq = VRC4173_PCMCIA1_IRQ;
122			break;
123		case 13:
124			dev->irq = VRC4173_PCMCIA2_IRQ;
125			break;
126		case 28:
127			dev->irq = LANINTA_IRQ;
128			break;
129		case 29:
130			switch (pin) {
131			case 1:
132				dev->irq = PCISLOT_IRQ;
133				break;
134			case 2:
135				dev->irq = CP_INTB_IRQ;
136				break;
137			case 3:
138				dev->irq = CP_INTC_IRQ;
139				break;
140			case 4:
141				dev->irq = CP_INTD_IRQ;
142				break;
143			}
144			break;
145		case 30:
146			switch (func) {
147			case 0:
148				dev->irq = VRC4173_CASCADE_IRQ;
149				break;
150			case 1:
151				dev->irq = VRC4173_AC97_IRQ;
152				break;
153			case 2:
154				dev->irq = VRC4173_USB_IRQ;
155				break;
156			}
157			break;
158		}
159
160		pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq);
161	}
162}
163
164unsigned int pcibios_assign_all_busses(void)
165{
166	return 0;
167}
168