On Fri, Dec 18, 2015 at 6:08 PM, Stanimir Varbanov <stanimir.varbanov@xxxxxxxxxx> wrote: > There is no guarantees that enabling ATU will hit the hardware > immediately, and subsequent accesses to configuration / IO spaces > are reliable. So fixing this by read back PCIE_ATU_CR2 register > just after writing. > > Without such a fix the PCI device enumeration during kernel boot > is not reliable, and reading configuration space for particular > PCI device on the bus returns zero aka no device. > > Signed-off-by: Stanimir Varbanov <stanimir.varbanov@xxxxxxxxxx> Acked-by: Pratyush Anand <pratyush.anand@xxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
