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Lakka-LibreELEC/projects/Amlogic/devices/AMLGX/patches/linux/amlogic-0037-FROMGIT-6.4-dt-bindings-net-add-amlogic-gxl-mdio-mul.patch
2023-03-14 11:10:30 +00:00

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From be94b9629bc355647bda972f92e0887d3a94c17f Mon Sep 17 00:00:00 2001
From: Jerome Brunet <jbrunet@baylibre.com>
Date: Mon, 30 Jan 2023 16:16:15 +0100
Subject: [PATCH 037/120] FROMGIT(6.4): dt-bindings: net: add amlogic gxl mdio
multiplexer
Add documentation for the MDIO bus multiplexer found on the Amlogic GXL
SoC family
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
---
.../bindings/net/amlogic,gxl-mdio-mux.yaml | 64 +++++++++++++++++++
1 file changed, 64 insertions(+)
create mode 100644 Documentation/devicetree/bindings/net/amlogic,gxl-mdio-mux.yaml
diff --git a/Documentation/devicetree/bindings/net/amlogic,gxl-mdio-mux.yaml b/Documentation/devicetree/bindings/net/amlogic,gxl-mdio-mux.yaml
new file mode 100644
index 000000000000..27ae004dbea0
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/amlogic,gxl-mdio-mux.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/amlogic,gxl-mdio-mux.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic GXL MDIO bus multiplexer
+
+maintainers:
+ - Jerome Brunet <jbrunet@baylibre.com>
+
+description:
+ This is a special case of a MDIO bus multiplexer. It allows to choose between
+ the internal mdio bus leading to the embedded 10/100 PHY or the external
+ MDIO bus on the Amlogic GXL SoC family.
+
+allOf:
+ - $ref: mdio-mux.yaml#
+
+properties:
+ compatible:
+ const: amlogic,gxl-mdio-mux
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: ref
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ eth_phy_mux: mdio@558 {
+ compatible = "amlogic,gxl-mdio-mux";
+ reg = <0x558 0xc>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&refclk>;
+ clock-names = "ref";
+ mdio-parent-bus = <&mdio0>;
+
+ external_mdio: mdio@0 {
+ reg = <0x0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ internal_mdio: mdio@1 {
+ reg = <0x1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+ };
--
2.34.1