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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/arch/mips/pci/pci-bcm47xx.c
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/*

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 *  Copyright (C) 2008 Aurelien Jarno <[email protected]>

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 *

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 *  This program is free software; you can redistribute  it and/or modify it

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 *  under  the terms of  the GNU General  Public License as published by the

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 *  Free Software Foundation;  either version 2 of the  License, or (at your

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 *  option) any later version.

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 *

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 *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED

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 *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF

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 *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN

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 *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,

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 *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT

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 *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF

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 *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON

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 *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT

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 *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

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 *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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 *

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 *  You should have received a copy of the  GNU General Public License along

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 *  with this program; if not, write  to the Free Software Foundation, Inc.,

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 *  675 Mass Ave, Cambridge, MA 02139, USA.

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 */

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#include <linux/types.h>

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#include <linux/pci.h>

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#include <linux/ssb/ssb.h>

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#include <linux/bcma/bcma.h>

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#include <bcm47xx.h>

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int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)

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{

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	return 0;

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}

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#ifdef CONFIG_BCM47XX_SSB

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static int bcm47xx_pcibios_plat_dev_init_ssb(struct pci_dev *dev)

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{

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	int res;

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	u8 slot, pin;

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	res = ssb_pcibios_plat_dev_init(dev);

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	if (res < 0) {

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		pci_alert(dev, "PCI: Failed to init device\n");

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		return res;

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	}

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	pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin);

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	slot = PCI_SLOT(dev->devfn);

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	res = ssb_pcibios_map_irq(dev, slot, pin);

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	/* IRQ-0 and IRQ-1 are software interrupts. */

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	if (res < 2) {

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		pci_alert(dev, "PCI: Failed to map IRQ of device\n");

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		return res;

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	}

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	dev->irq = res;

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	return 0;

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}

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#endif

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#ifdef CONFIG_BCM47XX_BCMA

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static int bcm47xx_pcibios_plat_dev_init_bcma(struct pci_dev *dev)

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{

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	int res;

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	res = bcma_core_pci_plat_dev_init(dev);

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	if (res < 0) {

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		pci_alert(dev, "PCI: Failed to init device\n");

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		return res;

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	}

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	res = bcma_core_pci_pcibios_map_irq(dev);

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	/* IRQ-0 and IRQ-1 are software interrupts. */

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	if (res < 2) {

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		pci_alert(dev, "PCI: Failed to map IRQ of device\n");

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		return res;

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	}

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	dev->irq = res;

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	return 0;

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}

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#endif

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int pcibios_plat_dev_init(struct pci_dev *dev)

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{

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#ifdef CONFIG_BCM47XX_SSB

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	if (bcm47xx_bus_type ==	 BCM47XX_BUS_TYPE_SSB)

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		return bcm47xx_pcibios_plat_dev_init_ssb(dev);

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#endif

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#ifdef CONFIG_BCM47XX_BCMA

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	if  (bcm47xx_bus_type ==  BCM47XX_BUS_TYPE_BCMA)

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		return bcm47xx_pcibios_plat_dev_init_bcma(dev);

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#endif

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	return 0;

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}

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