Commits
Russell King committed 58c19a140de
PCI: mvebu: Return zero for reserved or unimplemented config space PCI requires reads to reserved or unimplemented configuration space to return zero and complete normally (see PCI r3.0, sec 6.1). However, the root port software implementation was returning 0xfffffff and PCIBIOS_BAD_REGISTER_NUMBER. Return zero when reading reserved or unimplemented config space. [bhelgaas: changelog] Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> (Armada XP GP) Tested-by: Andrew Lunn <andrew@lunn.ch> (Kirkwood DIR665) Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>