[PATCHv3 1/3] dt-bindings: net: Add DT bindings for Socionext Netsec

[jassisinghbrar-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org]

From: Jassi Brar <jassisinghbrar-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>

This patch adds documentation for Device-Tree bindings for the
Socionext NetSec Controller driver.

Signed-off-by: Jassi Brar <jaswinder.singh-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
---
 .../devicetree/bindings/net/socionext-netsec.txt   | 55 ++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/socionext-netsec.txt

diff --git a/Documentation/devicetree/bindings/net/socionext-netsec.txt b/Documentation/devicetree/bindings/net/socionext-netsec.txt
new file mode 100644
index 0000000..350540c
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/socionext-netsec.txt
@@ -0,0 +1,57 @@
+* Socionext NetSec Ethernet Controller IP
+
+Required properties:
+- compatible: Should be "socionext,synquacer-netsec"
+- reg: Address and length of the control register area, followed by the
+       address and length of the EEPROM holding the MAC address and
+       microengine firmware
+- interrupts: Should contain ethernet controller interrupt
+- clocks: phandle to the PHY reference clock, and any other clocks to be
+          switched by runtime_pm
+- clock-names: Required only if more than a single clock is listed in 'clocks'.
+               The PHY reference clock must be named 'phy_refclk'
+- phy-mode: See ethernet.txt file in the same directory
+- phy-handle: See ethernet.txt in the same directory.
+
+- mdio device tree subnode: When the Netsec has a phy connected to its local
+		mdio, there must be device tree subnode with the following
+		required properties:
+
+	- compatible: Must be "socionext,snq-mdio".
+	- #address-cells: Must be <1>.
+	- #size-cells: Must be <0>.
+
+	For each phy on the mdio bus, there must be a node with the following
+	fields:
+	- compatible: Refer to phy.txt
+	- reg: phy id used to communicate to phy.
+
+Optional properties: (See ethernet.txt file in the same directory)
+- dma-coherent: Boolean property, must only be present if memory
+	accesses performed by the device are cache coherent.
+- local-mac-address: See ethernet.txt in the same directory.
+- mac-address: See ethernet.txt in the same directory.
+- max-speed: See ethernet.txt in the same directory.
+- max-frame-size: See ethernet.txt in the same directory.
+
+Example:
+	eth0: netsec@522d0000 {
+		compatible = "socionext,synquacer-netsec";
+		reg = <0 0x522d0000 0x0 0x10000>, <0 0x10000000 0x0 0x10000>;
+		interrupts = <GIC_SPI 176 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&clk_netsec>;
+		phy-mode = "rgmii";
+		max-speed = <1000>;
+		max-frame-size = <9000>;
+		phy-handle = <&phy1>;
+
+		mdio {
+			compatible = "socionext,snq-mdio";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			phy1: ethernet-phy@1 {
+				compatible = "ethernet-phy-ieee802.3-c22";
+				reg = <1>;
+			};
+		};
+	};
-- 
2.7.4

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