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Subject[PATCH v2 1/2] powerpc/pci: Enable PPC_PCI_BUS_NUM_DOMAIN_DEPENDENT by default
It makes sense to enable CONFIG_PPC_PCI_BUS_NUM_DOMAIN_DEPENDENT by default
(when possible by dependencies) to take advantages of all 256 PCI buses on
each PCI domain, like it is already on all other kernel architectures.

Fixes: 566356813082 ("powerpc/pci: Add config option for using all 256 PCI buses")
Signed-off-by: Pali Rohár <>
arch/powerpc/Kconfig | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index b8c4ac56bddc..fad25aa602c8 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -392,6 +392,7 @@ config PPC_PCI_BUS_NUM_DOMAIN_DEPENDENT
depends on PPC32
depends on !PPC_PMAC && !PPC_CHRP
bool "Assign PCI bus numbers from zero individually for each PCI domain"
+ default y
By default on PPC32 were PCI bus numbers unique across all PCI domains.
So system could have only 256 PCI buses independently of available
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