On Wed, 6 Jul 2022 12:10:43 +0200, Pali Rohár wrote:

By default old pre-3.0 Freescale PCIe controllers reports invalid PCI Class
Code 0x0b20 for PCIe Root Port. It can be seen by lspci -b output on P2020
board which has this pre-3.0 controller:

  $ lspci -bvnn
  00:00.0 Power PC [0b20]: Freescale Semiconductor Inc P2020E [1957:0070] (rev 21)
          !!! Invalid class 0b20 for header type 01
          Capabilities: [4c] Express Root Port (Slot-), MSI 00

[...]

Applied to powerpc/next.

[1/1] powerpc/fsl-pci: Fix Class Code of PCIe Root Port
      https://git.kernel.org/powerpc/c/0c551abfa004ce154d487d91777bf221c808a64f

cheers