[PATCH 03/25] [POWERPC] Add the ability to find PCI capabilities early on
From: Kumar Gala <hidden>
Date: 2007-07-23 20:50:45
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
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 <redacted> --- arch/powerpc/kernel/pci_32.c | 7 +++++++ include/asm-powerpc/pci-bridge.h | 3 +++ 2 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c
index 0adf077..bfcfa14 100644
--- a/arch/powerpc/kernel/pci_32.c
+++ b/arch/powerpc/kernel/pci_32.c@@ -1468,3 +1468,10 @@ EARLY_PCI_OP(read, dword, u32 *) EARLY_PCI_OP(write, byte, u8) EARLY_PCI_OP(write, word, u16) 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); +}
diff --git a/include/asm-powerpc/pci-bridge.h b/include/asm-powerpc/pci-bridge.h
index e72c2a6..7a00b8e 100644
--- a/include/asm-powerpc/pci-bridge.h
+++ b/include/asm-powerpc/pci-bridge.h@@ -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 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, void __iomem *cfg_addr, void __iomem *cfg_data); extern void setup_indirect_pci(struct pci_controller* hose,
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1.5.2.2