Kernel-4.18.0-80.el8_fsl,pci

• Bus Enumeration by Freescale PCI-X Agent

Typically any Freescale PCI-X bridge hardware strapped into Agent mode
is prevented from enumerating the bus. The PrPMC form-factor requires
all mezzanines to be PCI-X Agents, but one per system may still
enumerate the bus.

The property defined below will allow a PCI-X bridge to be used for bus
enumeration despite being strapped into Agent mode.

Required properties:

• fsl,pci-agent-force-enum : There is no value associated with this
  property. The property itself is treated as a boolean.

Example:

/* PCI-X bridge known to be PrPMC Monarch */
pci0: pci@ef008000 {
    fsl,pci-agent-force-enum;
    #interrupt-cells = <1>;
    #size-cells = <2>;
    #address-cells = <3>;
    compatible = "fsl,mpc8540-pcix", "fsl,mpc8540-pci";
    device_type = "pci";
    ...
    ...
};