[PATCH v4 1/5] PCI: iproc: Update iProc PCIe device tree binding

[Ray Jui]

Add a new compatible string "brcm,iproc-pcie-paxc", for PAXC based iProc
PCIe root complex. A PAXC based PCIe root complex is connected to
emulated endpoint devices internal to the ASIC

Signed-off-by: Ray Jui <rjui@xxxxxxxxxxxx>
Reviewed-by: Scott Branden <sbranden@xxxxxxxxxxxx>
---
 Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt b/Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt
index 45c2a80..06eae0f 100644
--- a/Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt
@@ -1,7 +1,10 @@
 * Broadcom iProc PCIe controller with the platform bus interface
 
 Required properties:
-- compatible: Must be "brcm,iproc-pcie"
+- compatible: Must be "brcm,iproc-pcie" for PAXB, or "brcm,iproc-pcie-paxc"
+  for PAXC. PAXB based root complex is used for external endpoint devices.
+  PAXC based root complex is connected to emulated endpoint devices
+  internal to the ASIC
 - reg: base address and length of the PCIe controller I/O register space
 - #interrupt-cells: set to <1>
 - interrupt-map-mask and interrupt-map, standard PCI properties to define the
-- 
1.9.1

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