linux-kernel - [PATCH 4/5] dt-bindings: PCI: cadence: Add DT bindings for Cadence PCIe endpoint controller

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Message-Id: <0a11e9742db04fd5b4bc08568b3ab5a056a0ef9d.1511439189.git.cyrille.pitchen@free-electrons.com>
Date:   Thu, 23 Nov 2017 16:01:49 +0100
From:   Cyrille Pitchen <cyrille.pitchen@...e-electrons.com>
To:     bhelgaas@...gle.com, kishon@...com, lorenzo.pieralisi@....com,
        linux-pci@...r.kernel.org
Cc:     adouglas@...ence.com, stelford@...ence.com, dgary@...ence.com,
        kgopi@...ence.com, eandrews@...ence.com,
        thomas.petazzoni@...e-electrons.com, sureshp@...ence.com,
        nsekhar@...com, linux-kernel@...r.kernel.org, robh@...nel.org,
        devicetree@...r.kernel.org,
        Cyrille Pitchen <cyrille.pitchen@...e-electrons.com>
Subject: [PATCH 4/5] dt-bindings: PCI: cadence: Add DT bindings for Cadence PCIe endpoint controller

This patch documents the DT bindings for the Cadence PCIe controller
when configured in endpoint mode.

Signed-off-by: Cyrille Pitchen <cyrille.pitchen@...e-electrons.com>
---
 .../devicetree/bindings/pci/cdns,cdns-pcie-ep.txt    | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/pci/cdns,cdns-pcie-ep.txt

diff --git a/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-ep.txt b/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-ep.txt
new file mode 100644
index 000000000000..d4168d79cceb
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-ep.txt
@@ -0,0 +1,20 @@
+* Cadence PCIe endpoint controller
+
+Required properties:
+- compatible: should contain "cdns,cdns-pcie-ep" to identify the IP used.
+- reg: should contain the controller register base address and AXI interface
+  region base address respectively.
+- reg-names: Must be "reg" and "mem" respectively.
+
+Optional properties:
+- max-functions: maximum number of functions that can be configured.
+
+Example:
+
+	pci@...00000 {
+		compatible = "cdns,cdns-pcie-ep";
+		reg = <0x0 0xfc000000 0x0 0x01000000>, /* Base Address */
+		      <0x0 0x80000000 0x0 0x40000000>; /* AXI region */
+		reg-names = "reg", "mem";
+		max-functions = /bits/ 8 <8>;
+	};
-- 
2.11.0