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authorKleber Sacilotto de Souza <klebers@linux.vnet.ibm.com>2013-05-03 12:43:12 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2013-05-06 09:25:38 +1000
commitd82fb31abc46620b7c22758c75707069f2763646 (patch)
tree29a92372ff460db1008565aa027a7fc60f2277e9 /arch/powerpc/platforms/pseries/setup.c
parente61133dda480062d221f09e4fc18f66763f8ecd0 (diff)
downloadlinaro-lsk-d82fb31abc46620b7c22758c75707069f2763646.tar.gz
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/platforms/pseries/setup.c')
-rw-r--r--arch/powerpc/platforms/pseries/setup.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index ac932a9eb44..c11c8238797 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -466,6 +466,8 @@ static void __init pSeries_setup_arch(void)
else
ppc_md.enable_pmcs = power4_enable_pmcs;
+ ppc_md.pcibios_root_bridge_prepare = pseries_root_bridge_prepare;
+
if (firmware_has_feature(FW_FEATURE_SET_MODE)) {
long rc;
if ((rc = pSeries_enable_reloc_on_exc()) != H_SUCCESS) {