On platforms that implement PCIe, the PCIe configuration space
information must be described to a standards-based operating
system in the Memory mapped configuration space base address
Description (MCFG) table.
The PCIe information is described in the platform Device Tree,
the bindings for which can be found at:
- linux/Documentation/devicetree/bindings/pci/
host-generic-pci.yaml
The FdtHwInfoParser implements a PCI configuration space Parser
that parses the platform Device Tree to create
CM_ARM_PCI_CONFIG_SPACE_INFO objects which are encapsulated in a
Configuration Manager descriptor object and added to the platform
information repository.
The platform Configuration Manager can then utilise this
information when generating the MCFG table.
Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Pierre Gondois