diff options
| author | Kleber Sacilotto de Souza <klebers@linux.vnet.ibm.com> | 2013-05-03 12:43:12 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-05-06 09:25:38 +1000 |
| commit | d82fb31abc46620b7c22758c75707069f2763646 (patch) | |
| tree | 29a92372ff460db1008565aa027a7fc60f2277e9 /arch/powerpc/kernel/pci-common.c | |
| parent | e61133dda480062d221f09e4fc18f66763f8ecd0 (diff) | |
powerpc/pseries: Perform proper max_bus_speed detection
On pseries machines the detection for max_bus_speed should be done
through an OpenFirmware property. This patch adds a function to perform
this detection and a hook to perform dynamic adding of the function only
for pseries. This is done by overwriting the weak
pcibios_root_bridge_prepare function which is called by
pci_create_root_bus().
From: Lucas Kannebley Tavares <lucaskt@linux.vnet.ibm.com>
Signed-off-by: Kleber Sacilotto de Souza <klebers@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/pci-common.c')
| -rw-r--r-- | arch/powerpc/kernel/pci-common.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index f325dc92340..d5811d8cc2c 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -845,6 +845,14 @@ int pci_proc_domain(struct pci_bus *bus) return 1; } +int pcibios_root_bridge_prepare(struct pci_host_bridge *bridge) +{ + if (ppc_md.pcibios_root_bridge_prepare) + return ppc_md.pcibios_root_bridge_prepare(bridge); + + return 0; +} + /* This header fixup will do the resource fixup for all devices as they are * probed, but not for bridge ranges */ |