diff options
Diffstat (limited to 'kernel/Documentation/devicetree/bindings/pci/layerscape-pci.txt')
| -rw-r--r-- | kernel/Documentation/devicetree/bindings/pci/layerscape-pci.txt | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/kernel/Documentation/devicetree/bindings/pci/layerscape-pci.txt b/kernel/Documentation/devicetree/bindings/pci/layerscape-pci.txt index 6286f049b..e3767857d 100644 --- a/kernel/Documentation/devicetree/bindings/pci/layerscape-pci.txt +++ b/kernel/Documentation/devicetree/bindings/pci/layerscape-pci.txt @@ -1,10 +1,20 @@ Freescale Layerscape PCIe controller -This PCIe host controller is based on the Synopsis Designware PCIe IP +This PCIe host controller is based on the Synopsys DesignWare PCIe IP and thus inherits all the common properties defined in designware-pcie.txt. +This controller derives its clocks from the Reset Configuration Word (RCW) +which is used to describe the PLL settings at the time of chip-reset. + +Also as per the available Reference Manuals, there is no specific 'version' +register available in the Freescale PCIe controller register set, +which can allow determining the underlying DesignWare PCIe controller version +information. + Required properties: -- compatible: should contain the platform identifier such as "fsl,ls1021a-pcie" +- compatible: should contain the platform identifier such as: + "fsl,ls1021a-pcie", "snps,dw-pcie" + "fsl,ls2080a-pcie", "snps,dw-pcie" - reg: base addresses and lengths of the PCIe controller - interrupts: A list of interrupt outputs of the controller. Must contain an entry for each entry in the interrupt-names property. |