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Linux/arch/mips/pci/pci-bcm47xx.c

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  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 #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 
 77         res = bcma_core_pci_pcibios_map_irq(dev);
 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 
 91 int pcibios_plat_dev_init(struct pci_dev *dev)
 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 }
105 

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