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authorBjorn Helgaas <bhelgaas@google.com>2015-11-03 08:39:32 -0600
committerBjorn Helgaas <bhelgaas@google.com>2015-11-03 08:39:32 -0600
commit7225107e158241b7e22f15b9f4c3db0b3330984d (patch)
tree7050af734ec625ac7ee53b8487b8ece65a5f0967 /Documentation/devicetree/bindings/pci
parent4ed31f24a6416cc60bc8e92c25b2de3060fbedf8 (diff)
parentbd33b87a9a15f8182e8c6a49f5413e7ef79372bf (diff)
Merge branch 'pci/host-layerscape' into next
* pci/host-layerscape: PCI: layerscape: Add ls_pcie_msi_host_init() PCI: layerscape: Add support for LS1043a and LS2080a PCI: layerscape: Remove unused fields from struct ls_pcie PCI: layerscape: Update ls_add_pcie_port() PCI: layerscape: Factor out SCFG related function PCI: layerscape: Ignore PCIe controllers in Endpoint mode PCI: layerscape: Remove ls_pcie_establish_link()
Diffstat (limited to 'Documentation/devicetree/bindings/pci')
-rw-r--r--Documentation/devicetree/bindings/pci/layerscape-pci.txt14
1 files changed, 12 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/pci/layerscape-pci.txt b/Documentation/devicetree/bindings/pci/layerscape-pci.txt
index 6286f049bf18..e3767857d30d 100644
--- a/Documentation/devicetree/bindings/pci/layerscape-pci.txt
+++ b/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.