Add documentations for macb mdio driver.
Signed-off-by: Harini Katakam <harinik@xxxxxxxxxx>
---
.../devicetree/bindings/net/macb-mdio.txt | 31 ++++++++++++++++++++++
1 file changed, 31 insertions(+)
create mode 100644 Documentation/devicetree/bindings/net/macb-mdio.txt
diff --git a/Documentation/devicetree/bindings/net/macb-mdio.txt b/Documentation/devicetree/bindings/net/macb-mdio.txt
new file mode 100644
index 0000000..014cedf
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/macb-mdio.txt
@@ -0,0 +1,31 @@
+* Cadence MACB MDIO controller
+
+Required properties:
+- compatible: Should be "cdns,macb-mdio"
+- reg: Address and length of the register set of MAC to be used
+- clock-names: Tuple listing input clock names.
+ Required elements: 'pclk', 'hclk'
+ Optional elements: 'tx_clk'
+- clocks: Phandles to input clocks.
+
+Examples:
+
+ mdio {
+ compatible = "cdns,macb-mdio";
+ reg = <0x0 0xff0b0000 0x0 0x1000>;
+ clocks = <&clk125>, <&clk125>, <&clk125>;
+ clock-names = "pclk", "hclk", "tx_clk";
+ ethernet_phyC: ethernet-phy@C {
+ reg = <0xC>;
+ };
+ ethernet_phy7: ethernet-phy@7 {
+ reg = <0x7>;
+ };
+ ethernet_phy3: ethernet-phy@3 {
+ reg = <0x3>;
+ };
+ ethernet_phy8: ethernet-phy@8 {
+ reg = <0x8>;
+ };
+ };
+
--
2.7.4
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