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kernel/linux-imx6_3.14.28/arch/mips/pci/pci-bcm47xx.c 2.9 KB
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  /*
   *  Copyright (C) 2008 Aurelien Jarno <aurelien@aurel32.net>
   *
   *  This program is free software; you can redistribute  it and/or modify it
   *  under  the terms of  the GNU General  Public License as published by the
   *  Free Software Foundation;  either version 2 of the  License, or (at your
   *  option) any later version.
   *
   *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
   *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
   *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
   *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
   *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
   *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
   *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
   *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   *
   *  You should have received a copy of the  GNU General Public License along
   *  with this program; if not, write  to the Free Software Foundation, Inc.,
   *  675 Mass Ave, Cambridge, MA 02139, USA.
   */
  
  #include <linux/types.h>
  #include <linux/pci.h>
  #include <linux/ssb/ssb.h>
  #include <linux/bcma/bcma.h>
  #include <bcm47xx.h>
  
  int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
  {
  	return 0;
  }
  
  #ifdef CONFIG_BCM47XX_SSB
  static int bcm47xx_pcibios_plat_dev_init_ssb(struct pci_dev *dev)
  {
  	int res;
  	u8 slot, pin;
  
  	res = ssb_pcibios_plat_dev_init(dev);
  	if (res < 0) {
  		printk(KERN_ALERT "PCI: Failed to init device %s
  ",
  		       pci_name(dev));
  		return res;
  	}
  
  	pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin);
  	slot = PCI_SLOT(dev->devfn);
  	res = ssb_pcibios_map_irq(dev, slot, pin);
  
  	/* IRQ-0 and IRQ-1 are software interrupts. */
  	if (res < 2) {
  		printk(KERN_ALERT "PCI: Failed to map IRQ of device %s
  ",
  		       pci_name(dev));
  		return res;
  	}
  
  	dev->irq = res;
  	return 0;
  }
  #endif
  
  #ifdef CONFIG_BCM47XX_BCMA
  static int bcm47xx_pcibios_plat_dev_init_bcma(struct pci_dev *dev)
  {
  	int res;
  
  	res = bcma_core_pci_plat_dev_init(dev);
  	if (res < 0) {
  		printk(KERN_ALERT "PCI: Failed to init device %s
  ",
  		       pci_name(dev));
  		return res;
  	}
  
  	res = bcma_core_pci_pcibios_map_irq(dev);
  
  	/* IRQ-0 and IRQ-1 are software interrupts. */
  	if (res < 2) {
  		printk(KERN_ALERT "PCI: Failed to map IRQ of device %s
  ",
  		       pci_name(dev));
  		return res;
  	}
  
  	dev->irq = res;
  	return 0;
  }
  #endif
  
  int pcibios_plat_dev_init(struct pci_dev *dev)
  {
  #ifdef CONFIG_BCM47XX_SSB
  	if (bcm47xx_bus_type ==	 BCM47XX_BUS_TYPE_SSB)
  		return bcm47xx_pcibios_plat_dev_init_ssb(dev);
  	else
  #endif
  #ifdef CONFIG_BCM47XX_BCMA
  	if  (bcm47xx_bus_type ==  BCM47XX_BUS_TYPE_BCMA)
  		return bcm47xx_pcibios_plat_dev_init_bcma(dev);
  	else
  #endif
  		return 0;
  }