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bcma: add PCIe host controller

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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>
This commit is contained in:
Hauke Mehrtens
2012-01-31 00:03:35 +01:00
committed by John W. Linville
parent d1a7a8e1d3
commit 49dc957715
6 changed files with 691 additions and 40 deletions
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51
arch/mips/pci/pci-bcm47xx.c
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@@ -25,6 +25,7 @@
#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)
@@ -32,15 +33,12 @@ int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
return 0;
}
int pcibios_plat_dev_init(struct pci_dev *dev)
{
#ifdef CONFIG_BCM47XX_SSB
static int bcm47xx_pcibios_plat_dev_init_ssb(struct pci_dev *dev)
{
int res;
u8 slot, pin;
if (bcm47xx_bus_type != BCM47XX_BUS_TYPE_SSB)
return 0;
res = ssb_pcibios_plat_dev_init(dev);
if (res < 0) {
printk(KERN_ALERT "PCI: Failed to init device %s\n",
@@ -60,6 +58,47 @@ int pcibios_plat_dev_init(struct pci_dev *dev)
}
dev->irq = res;
#endif
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\n",
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\n",
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;
}