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[POWERPC] Provide ability to setup P2P bridge registers from struct resource

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We need the ability to set P2P bridge registers to properly setup the virtual
P2P bridges that exist in PCIe controllers for some of the embedded setups.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Kumar Gala 2007-07-20 13:35:34 -05:00
parent f16dab981a
commit f64fddbeac
2 changed files with 14 additions and 6 deletions
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18
arch/powerpc/kernel/pci_32.c
View file

@ -415,15 +415,13 @@ probe_resource(struct pci_bus *parent, struct resource *pr,
return 0;
}
static void __init
update_bridge_base(struct pci_bus *bus, int i)
void __init
update_bridge_resource(struct pci_dev *dev, struct resource *res)
{
struct resource *res = bus->resource[i];
u8 io_base_lo, io_limit_lo;
u16 mem_base, mem_limit;
u16 cmd;
unsigned long start, end, off;
struct pci_dev *dev = bus->self;
struct pci_controller *hose = dev->sysdata;
if (!hose) {
@ -467,12 +465,20 @@ update_bridge_base(struct pci_bus *bus, int i)
pci_write_config_word(dev, PCI_PREF_MEMORY_LIMIT, mem_limit);
} else {
DBG(KERN_ERR "PCI: ugh, bridge %s res %d has flags=%lx\n",
pci_name(dev), i, res->flags);
DBG(KERN_ERR "PCI: ugh, bridge %s res has flags=%lx\n",
pci_name(dev), res->flags);
}
pci_write_config_word(dev, PCI_COMMAND, cmd);
}
static void __init
update_bridge_base(struct pci_bus *bus, int i)
{
struct resource *res = bus->resource[i];
struct pci_dev *dev = bus->self;
update_bridge_resource(dev, res);
}
static inline void alloc_resource(struct pci_dev *dev, int idx)
{
struct resource *pr, *r = &dev->resource[idx];

2
include/asm-powerpc/pci-bridge.h
View file

@ -92,6 +92,8 @@ extern int early_find_capability(struct pci_controller *hose, int bus,
extern void setup_indirect_pci(struct pci_controller* hose,
u32 cfg_addr, u32 cfg_data, u32 flags);
extern void setup_grackle(struct pci_controller *hose);
extern void __init update_bridge_resource(struct pci_dev *dev,
struct resource *res);
#else