49dc957715
Some SoCs have a PCIe host controller to make it possible to attach some other devices to it, like an other Wifi card. This code was tested with an Netgear WNDR3400 (bcm4716 based), but should work with all bcma based SoCs. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
105 lines
2.9 KiB
C
105 lines
2.9 KiB
C
/*
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* Copyright (C) 2008 Aurelien Jarno <aurelien@aurel32.net>
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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 __init 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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printk(KERN_ALERT "PCI: Failed to init device %s\n",
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pci_name(dev));
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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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printk(KERN_ALERT "PCI: Failed to map IRQ of device %s\n",
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pci_name(dev));
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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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printk(KERN_ALERT "PCI: Failed to init device %s\n",
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pci_name(dev));
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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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printk(KERN_ALERT "PCI: Failed to map IRQ of device %s\n",
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pci_name(dev));
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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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else
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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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else
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#endif
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return 0;
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}
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