diff mbox series

[v2,5/5] arm64: dts: qcom: ipq5018: Add GE PHY to internal mdio bus

Message ID 20250528-ipq5018-ge-phy-v2-5-dd063674c71c@outlook.com
State New
Headers show
Series [v2,1/5] clk: qcom: gcc-ipq5018: fix GE PHY reset | expand

Commit Message

George Moussalem via B4 Relay May 28, 2025, 2:45 p.m. UTC 
From: George Moussalem <george.moussalem@outlook.com>

The IPQ5018 SoC contains an internal GE PHY, always at phy address 7.
As such, let's add the GE PHY node to the SoC dtsi.

The LDO controller found in the SoC must be enabled to provide constant
low voltages to the PHY. The mdio-ipq4019 driver already has support
for this, so adding the appropriate TCSR register offset.

In addition, the GE PHY outputs both the RX and TX clocks to the GCC
which gate controls them and routes them back to the PHY itself.
So let's create two DT fixed clocks and register them in the GCC node.

Signed-off-by: George Moussalem <george.moussalem@outlook.com>
---
 arch/arm64/boot/dts/qcom/ipq5018.dtsi | 29 ++++++++++++++++++++++++++---
 1 file changed, 26 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/qcom/ipq5018.dtsi b/arch/arm64/boot/dts/qcom/ipq5018.dtsi
index 03ebc3e305b267c98a034c41ce47a39269afce75..6c42ed826c3c60960b08afb0b324cfb89f02329d 100644
--- a/arch/arm64/boot/dts/qcom/ipq5018.dtsi
+++ b/arch/arm64/boot/dts/qcom/ipq5018.dtsi
@@ -16,6 +16,18 @@  / {
 	#size-cells = <2>;
 
 	clocks {
+		gephy_rx_clk: gephy-rx-clk {
+			compatible = "fixed-clock";
+			clock-frequency = <125000000>;
+			#clock-cells = <0>;
+		};
+
+		gephy_tx_clk: gephy-tx-clk {
+			compatible = "fixed-clock";
+			clock-frequency = <125000000>;
+			#clock-cells = <0>;
+		};
+
 		sleep_clk: sleep-clk {
 			compatible = "fixed-clock";
 			#clock-cells = <0>;
@@ -184,7 +196,8 @@  pcie0_phy: phy@86000 {
 
 		mdio0: mdio@88000 {
 			compatible = "qcom,ipq5018-mdio";
-			reg = <0x00088000 0x64>;
+			reg = <0x00088000 0x64>,
+			      <0x019475c4 0x4>;
 			#address-cells = <1>;
 			#size-cells = <0>;
 
@@ -192,6 +205,16 @@  mdio0: mdio@88000 {
 			clock-names = "gcc_mdio_ahb_clk";
 
 			status = "disabled";
+
+			ge_phy: ethernet-phy@7 {
+				compatible = "ethernet-phy-id004d.d0c0";
+				reg = <7>;
+
+				clocks = <&gcc GCC_GEPHY_RX_CLK>,
+					 <&gcc GCC_GEPHY_TX_CLK>;
+
+				resets = <&gcc GCC_GEPHY_MISC_ARES>;
+			};
 		};
 
 		mdio1: mdio@90000 {
@@ -232,8 +255,8 @@  gcc: clock-controller@1800000 {
 				 <&pcie0_phy>,
 				 <&pcie1_phy>,
 				 <0>,
-				 <0>,
-				 <0>,
+				 <&gephy_rx_clk>,
+				 <&gephy_tx_clk>,
 				 <0>,
 				 <0>;
 			#clock-cells = <1>;