SPEAr13XX PCIe DT detail:
SPEAr13XX uses the Synopsys DesignWare PCIe controller and ST MiPHY as PHY
controller.
Required properties:
compatible : should be “st,spear1340-pcie”, “snps,dw-pcie”.
phys : phandle to PHY node associated with PCIe controller
phy-names : must be “pcie-phy”
All other definitions as per generic PCI bindings
Optional properties:
st,pcie-is-gen1 indicates that forced gen1 initialization is needed.
