https://bugzilla.kernel.org/show_bug.cgi?id=209729 >From the bugzilla: device: Turris Omnia (armv7l) kernel log: mvebu-pcie soc:pcie: host bridge /soc/pcie ranges: mvebu-pcie soc:pcie: Parsing ranges property... mvebu-pcie soc:pcie: MEM 0x00f1080000..0x00f1081fff -> 0x0000080000 mvebu-pcie soc:pcie: MEM 0x00f1040000..0x00f1041fff -> 0x0000040000 mvebu-pcie soc:pcie: MEM 0x00f1044000..0x00f1045fff -> 0x0000044000 mvebu-pcie soc:pcie: MEM 0x00f1048000..0x00f1049fff -> 0x0000048000 mvebu-pcie soc:pcie: MEM 0xffffffffffffffff..0x00fffffffe -> 0x0100000000 mvebu-pcie soc:pcie: IO 0xffffffffffffffff..0x00fffffffe -> 0x0100000000 mvebu-pcie soc:pcie: MEM 0xffffffffffffffff..0x00fffffffe -> 0x0200000000 mvebu-pcie soc:pcie: IO 0xffffffffffffffff..0x00fffffffe -> 0x0200000000 mvebu-pcie soc:pcie: MEM 0xffffffffffffffff..0x00fffffffe -> 0x0300000000 mvebu-pcie soc:pcie: IO 0xffffffffffffffff..0x00fffffffe -> 0x0300000000 mvebu-pcie soc:pcie: MEM 0xffffffffffffffff..0x00fffffffe -> 0x0400000000 mvebu-pcie soc:pcie: IO 0xffffffffffffffff..0x00fffffffe -> 0x0400000000 mvebu-pcie soc:pcie: resource collision: [mem 0xf1080000-0xf1081fff] conflicts with pcie [mem 0xf1080000-0xf1081fff] mvebu-pcie: probe of soc:pcie failed with error -16 As a result PCIe devices, e.g. WLan cards, are not working.