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pci-bcm47xx.c
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1 /*
2  * Copyright (C) 2008 Aurelien Jarno <[email protected]>
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 #include <linux/bcma/bcma.h>
29 #include <bcm47xx.h>
30 
31 int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
32 {
33  return 0;
34 }
35 
36 #ifdef CONFIG_BCM47XX_SSB
37 static int bcm47xx_pcibios_plat_dev_init_ssb(struct pci_dev *dev)
38 {
39  int res;
40  u8 slot, pin;
41 
42  res = ssb_pcibios_plat_dev_init(dev);
43  if (res < 0) {
44  printk(KERN_ALERT "PCI: Failed to init device %s\n",
45  pci_name(dev));
46  return res;
47  }
48 
49  pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin);
50  slot = PCI_SLOT(dev->devfn);
51  res = ssb_pcibios_map_irq(dev, slot, pin);
52 
53  /* IRQ-0 and IRQ-1 are software interrupts. */
54  if (res < 2) {
55  printk(KERN_ALERT "PCI: Failed to map IRQ of device %s\n",
56  pci_name(dev));
57  return res;
58  }
59 
60  dev->irq = res;
61  return 0;
62 }
63 #endif
64 
65 #ifdef CONFIG_BCM47XX_BCMA
66 static int bcm47xx_pcibios_plat_dev_init_bcma(struct pci_dev *dev)
67 {
68  int res;
69 
70  res = bcma_core_pci_plat_dev_init(dev);
71  if (res < 0) {
72  printk(KERN_ALERT "PCI: Failed to init device %s\n",
73  pci_name(dev));
74  return res;
75  }
76 
78 
79  /* IRQ-0 and IRQ-1 are software interrupts. */
80  if (res < 2) {
81  printk(KERN_ALERT "PCI: Failed to map IRQ of device %s\n",
82  pci_name(dev));
83  return res;
84  }
85 
86  dev->irq = res;
87  return 0;
88 }
89 #endif
90 
92 {
93 #ifdef CONFIG_BCM47XX_SSB
94  if (bcm47xx_bus_type == BCM47XX_BUS_TYPE_SSB)
95  return bcm47xx_pcibios_plat_dev_init_ssb(dev);
96  else
97 #endif
98 #ifdef CONFIG_BCM47XX_BCMA
99  if (bcm47xx_bus_type == BCM47XX_BUS_TYPE_BCMA)
100  return bcm47xx_pcibios_plat_dev_init_bcma(dev);
101  else
102 #endif
103  return 0;
104 }