diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-09-29 08:31:52 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-09-29 08:31:52 -0700 |
commit | 0f873d5fb68a6aea9519c9cd613ddf4e7e2378d4 (patch) | |
tree | 92f98ce0951cb5eec91490fb1ad9e5b0ffe7ca63 /arch/mips/pci/pci-ip27.c | |
parent | df45eddc60e1ab4c81b61e240271eabb4fb176e8 (diff) | |
parent | ac82da3381fc663dbda31612a0bff60bc41676a3 (diff) |
Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
[SSB] Initialise dma_mask for SSB_BUSTYPE_SSB devices
[MIPS] BCM47xx: Fix build error due to missing PCI functions
[MIPS] IP27: Switch to dynamic interrupt routing avoding panic on error.
[MIPS] au1000: Make sure GPIO value is zero or one
Diffstat (limited to 'arch/mips/pci/pci-ip27.c')
-rw-r--r-- | arch/mips/pci/pci-ip27.c | 40 |
1 files changed, 31 insertions, 9 deletions
diff --git a/arch/mips/pci/pci-ip27.c b/arch/mips/pci/pci-ip27.c index bd78368c82b..f97ab146101 100644 --- a/arch/mips/pci/pci-ip27.c +++ b/arch/mips/pci/pci-ip27.c @@ -143,25 +143,47 @@ int __cpuinit bridge_probe(nasid_t nasid, int widget_id, int masterwid) */ int __devinit pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { + return 0; +} + +/* Most MIPS systems have straight-forward swizzling needs. */ +static inline u8 bridge_swizzle(u8 pin, u8 slot) +{ + return (((pin - 1) + slot) % 4) + 1; +} + +static inline struct pci_dev *bridge_root_dev(struct pci_dev *dev) +{ + while (dev->bus->parent) { + /* Move up the chain of bridges. */ + dev = dev->bus->self; + } + + return dev; +} + +/* Do platform specific device initialization at pci_enable_device() time */ +int pcibios_plat_dev_init(struct pci_dev *dev) +{ struct bridge_controller *bc = BRIDGE_CONTROLLER(dev->bus); - int irq = bc->pci_int[slot]; + struct pci_dev *rdev = bridge_root_dev(dev); + int slot = PCI_SLOT(rdev->devfn); + int irq; + irq = bc->pci_int[slot]; if (irq == -1) { - irq = bc->pci_int[slot] = request_bridge_irq(bc); + irq = request_bridge_irq(bc); if (irq < 0) - panic("Can't allocate interrupt for PCI device %s\n", - pci_name(dev)); + return irq; + + bc->pci_int[slot] = irq; } irq_to_bridge[irq] = bc; irq_to_slot[irq] = slot; - return irq; -} + dev->irq = irq; -/* Do platform specific device initialization at pci_enable_device() time */ -int pcibios_plat_dev_init(struct pci_dev *dev) -{ return 0; } |