From: Jerome Brunet <jbrunet@baylibre.com>
To: Andrew Lunn <andrew@lunn.ch>,
Florian Fainelli <f.fainelli@gmail.com>,
Heiner Kallweit <hkallweit1@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Kevin Hilman <khilman@baylibre.com>
Cc: Jerome Brunet <jbrunet@baylibre.com>,
netdev@vger.kernel.org, linux-amlogic@lists.infradead.org,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org
Subject: [PATCH net-next 1/3] dt-bindings: net: phy: add g12a mdio mux documentation
Date: Thu, 14 Mar 2019 15:01:33 +0100 [thread overview]
Message-ID: <20190314140135.19184-2-jbrunet@baylibre.com> (raw)
In-Reply-To: <20190314140135.19184-1-jbrunet@baylibre.com>
Add documentation for the device tree bindings of the MDIO mux of Amlogic
g12a SoC family
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
---
.../bindings/net/mdio-mux-meson-g12a.txt | 48 +++++++++++++++++++
1 file changed, 48 insertions(+)
create mode 100644 Documentation/devicetree/bindings/net/mdio-mux-meson-g12a.txt
diff --git a/Documentation/devicetree/bindings/net/mdio-mux-meson-g12a.txt b/Documentation/devicetree/bindings/net/mdio-mux-meson-g12a.txt
new file mode 100644
index 000000000000..e738bba6a9de
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/mdio-mux-meson-g12a.txt
@@ -0,0 +1,48 @@
+Properties for the MDIO bus multiplexer/glue of Amlogic G12a SoC family.
+
+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.
+
+Required properties in addition to the generic multiplexer properties:
+- compatible : amlogic,g12a-mdio-mux
+- reg: physical address and length of the multiplexer/glue registers
+- clocks: list of clock phandle, one for each entry clock-names.
+- clock-names: should contain the following:
+ * "pclk" : peripheral clock.
+ * "clkin0" : platform crytal
+ * "clkin1" : SoC 50MHz MPLL
+
+Example :
+
+mdio-mux: mdio-multiplexer@4c000 {
+ compatible = "amlogic,g12a-mdio-mux";
+ reg = <0x0 0x4c000 0x0 0xa4>;
+ clocks = <&clkc CLKID_ETH_PHY>,
+ <&xtal>,
+ <&clkc CLKID_MPLL_5OM>;
+ clock-names = "pclk", "clkin0", "clkin1";
+ mdio-parent-bus = <&mdio0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ext_mdio: mdio@0 {
+ reg = <0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ int_mdio: mdio@1 {
+ reg = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ internal_ephy: ethernet_phy@8 {
+ compatible = "ethernet-phy-id0180.3301",
+ "ethernet-phy-ieee802.3-c22";
+ interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>;
+ reg = <8>;
+ max-speed = <100>;
+ };
+ };
+};
--
2.20.1
next prev parent reply other threads:[~2019-03-14 14:01 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-14 14:01 [PATCH net-next 0/3] net: phy: add Amlogic g12a support Jerome Brunet
2019-03-14 14:01 ` Jerome Brunet [this message]
2019-03-28 15:57 ` [PATCH net-next 1/3] dt-bindings: net: phy: add g12a mdio mux documentation Rob Herring
2019-03-14 14:01 ` [PATCH net-next 2/3] net: phy: add amlogic g12a mdio mux support Jerome Brunet
2019-03-16 2:54 ` Andrew Lunn
2019-03-16 17:02 ` Jerome Brunet
2019-03-17 15:48 ` Andrew Lunn
2019-03-18 9:36 ` Jerome Brunet
2019-03-18 9:45 ` Neil Armstrong
2019-03-17 16:14 ` Andrew Lunn
2019-03-18 9:34 ` Jerome Brunet
2019-03-14 14:01 ` [PATCH net-next 3/3] net: phy: meson-gxl: add g12a support Jerome Brunet
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