LXR linux/arch/mips/pci/pci-bcm47xx.c

   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
  31int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
  32{
  33        return 0;
  34}
  35
  36#ifdef CONFIG_BCM47XX_SSB
  37static 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
  66static 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
  91int 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