[POWERPC] 4xx: PLB to PCI-X support
This adds base support code for the 4xx PCI-X bridge. It also provides placeholders for the PCI and PCI-E version but they aren't supported with this patch. The bridges are configured based on device-tree properties. Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>
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arch/powerpc/sysdev/ppc4xx_pci.c
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arch/powerpc/sysdev/ppc4xx_pci.h
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