xref: /openbmc/linux/arch/mips/pci/pci-bcm47xx.c (revision 6ee73861)
1 /*
2  *  Copyright (C) 2008 Aurelien Jarno <aurelien@aurel32.net>
3  *
4  *  This program is free software; you can redistribute  it and/or modify it
5  *  under  the terms of  the GNU General  Public License as published by the
6  *  Free Software Foundation;  either version 2 of the  License, or (at your
7  *  option) any later version.
8  *
9  *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
10  *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
11  *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
12  *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
13  *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
14  *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
15  *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
16  *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
17  *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
18  *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
19  *
20  *  You should have received a copy of the  GNU General Public License along
21  *  with this program; if not, write  to the Free Software Foundation, Inc.,
22  *  675 Mass Ave, Cambridge, MA 02139, USA.
23  */
24 
25 #include <linux/types.h>
26 #include <linux/pci.h>
27 #include <linux/ssb/ssb.h>
28 
29 int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
30 {
31 	return 0;
32 }
33 
34 int pcibios_plat_dev_init(struct pci_dev *dev)
35 {
36 	int res;
37 	u8 slot, pin;
38 
39 	res = ssb_pcibios_plat_dev_init(dev);
40 	if (res < 0) {
41 		printk(KERN_ALERT "PCI: Failed to init device %s\n",
42 		       pci_name(dev));
43 		return res;
44 	}
45 
46 	pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin);
47 	slot = PCI_SLOT(dev->devfn);
48 	res = ssb_pcibios_map_irq(dev, slot, pin);
49 
50 	/* IRQ-0 and IRQ-1 are software interrupts. */
51 	if (res < 2) {
52 		printk(KERN_ALERT "PCI: Failed to map IRQ of device %s\n",
53 		       pci_name(dev));
54 		return res;
55 	}
56 
57 	dev->irq = res;
58 	return 0;
59 }
60 
61