PCI: layerscape: Add support for LS1043a and LS2080a

[karo-tx-linux.git] / Documentation / devicetree / bindings / pci / layerscape-pci.txt

diff --git a/Documentation/devicetree/bindings/pci/layerscape-pci.txt b/Documentation/devicetree/bindings/pci/layerscape-pci.txt
index 6286f049bf189599346ee6a05d31392e132abf5e..e3767857d30df98ef8a8d1b658e56bb6f6afadef 100644 (file)
--- a/Documentation/devicetree/bindings/pci/layerscape-pci.txt
+++ b/Documentation/devicetree/bindings/pci/layerscape-pci.txt
@@ -1,10 +1,20 @@
 Freescale Layerscape PCIe controller
 
 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.
 
 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:
 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.
 - 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.