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[v12,10/13] arm64: dts: ls1046ardb: Add serdes descriptions

Message ID 20230321201313.2507539-11-sean.anderson@seco.com
State Superseded
Headers show
Series phy: Add support for Lynx 10G SerDes | expand

Commit Message

Sean Anderson March 21, 2023, 8:13 p.m. UTC 
This adds appropriate descriptions for the macs which use the SerDes. The
156.25MHz fixed clock is a crystal. The 100MHz clocks (there are
actually 3) come from a Renesas 6V49205B at address 69 on i2c0. There is
no driver for this device (and as far as I know all you can do with the
100MHz clocks is gate them), so I have chosen to model it as a single
fixed clock.

Note: the SerDes1 lane numbering for the LS1046A is *reversed*.
This means that Lane A (what the driver thinks is lane 0) uses pins
SD1_TX3_P/N.

Signed-off-by: Sean Anderson <sean.anderson@seco.com>

---

(no changes since v10)

Changes in v10:
- Move serdes descriptions to SoC dtsi
- Don't use /clocks
- Use "descriptions" instead of "bindings"
- Split off defconfig change into separate patch

Changes in v9:
- Fix name of phy mode node
- phy-type -> fsl,phy

Changes in v8:
- Rename serdes phy handles to use _A, _B, etc. instead of _0, _1, etc.
  This should help remind readers that the numbering corresponds to the
  physical layout of the registers, and not the lane (pin) number.

Changes in v6:
- XGI.9 -> XFI.9

Changes in v4:
- Convert to new bindings

 .../boot/dts/freescale/fsl-ls1046a-rdb.dts    | 26 +++++++++++++++++++
 1 file changed, 26 insertions(+)
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1046a-rdb.dts b/arch/arm64/boot/dts/freescale/fsl-ls1046a-rdb.dts
index 07f6cc6e354a..0d6dcfd1630a 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1046a-rdb.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1046a-rdb.dts
@@ -26,6 +26,24 @@  aliases {
 	chosen {
 		stdout-path = "serial0:115200n8";
 	};
+
+	clk_100mhz: clock-100mhz {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <100000000>;
+	};
+
+	clk_156mhz: clock-156mhz {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <156250000>;
+	};
+};
+
+&serdes1 {
+	clocks = <&clk_100mhz>, <&clk_156mhz>;
+	clock-names = "ref0", "ref1";
+	status = "okay";
 };
 
 &duart0 {
@@ -140,21 +158,29 @@  ethernet@e6000 {
 	ethernet@e8000 {
 		phy-handle = <&sgmii_phy1>;
 		phy-connection-type = "sgmii";
+		phys = <&serdes1_B>;
+		phy-names = "serdes";
 	};
 
 	ethernet@ea000 {
 		phy-handle = <&sgmii_phy2>;
 		phy-connection-type = "sgmii";
+		phys = <&serdes1_A>;
+		phy-names = "serdes";
 	};
 
 	ethernet@f0000 { /* 10GEC1 */
 		phy-handle = <&aqr106_phy>;
 		phy-connection-type = "xgmii";
+		phys = <&serdes1_D>;
+		phy-names = "serdes";
 	};
 
 	ethernet@f2000 { /* 10GEC2 */
 		phy-connection-type = "10gbase-r";
 		managed = "in-band-status";
+		phys = <&serdes1_C>;
+		phy-names = "serdes";
 	};
 
 	mdio@fc000 {