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[POWERPC] Add the ability to find PCI capabilities early on

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Added early_find_capability that wraps pci_bus_find_capability and uses
fake_pci_bus() to allow us to call it before we've fully setup the
pci_controller.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Kumar Gala 2007-07-10 23:37:45 -05:00
parent 9ac4dd301e
commit 38805e5f09
2 changed files with 10 additions and 0 deletions
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7
arch/powerpc/kernel/pci_32.c
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@ -1468,3 +1468,10 @@ EARLY_PCI_OP(read, dword, u32 *)
EARLY_PCI_OP(write, byte, u8) EARLY_PCI_OP(write, byte, u8)
EARLY_PCI_OP(write, word, u16) EARLY_PCI_OP(write, word, u16)
EARLY_PCI_OP(write, dword, u32) EARLY_PCI_OP(write, dword, u32)
extern int pci_bus_find_capability (struct pci_bus *bus, unsigned int devfn, int cap);
int early_find_capability(struct pci_controller *hose, int bus, int devfn,
int cap)
{
return pci_bus_find_capability(fake_pci_bus(hose, bus), devfn, cap);
}

3
include/asm-powerpc/pci-bridge.h
View File

@ -79,6 +79,9 @@ int early_write_config_word(struct pci_controller *hose, int bus, int dev_fn,
int early_write_config_dword(struct pci_controller *hose, int bus, int dev_fn, int early_write_config_dword(struct pci_controller *hose, int bus, int dev_fn,
int where, u32 val); int where, u32 val);
extern int early_find_capability(struct pci_controller *hose, int bus,
int dev_fn, int cap);
extern void setup_indirect_pci_nomap(struct pci_controller* hose, extern void setup_indirect_pci_nomap(struct pci_controller* hose,
void __iomem *cfg_addr, void __iomem *cfg_data); void __iomem *cfg_addr, void __iomem *cfg_data);
extern void setup_indirect_pci(struct pci_controller* hose, extern void setup_indirect_pci(struct pci_controller* hose,