[PATCH 2/6] arm: dts: lx2160aqds: add MDIO slots

[Ioana Ciornei]

The LX2160A processor has two external MDIO interfaces, described in the
DTS as emdio1 and emdio2. EMDIO1 is used with two onboard RGMII PHYs
(Realtek RTL8211FD-CG), as well as eight input/output connectors for
mezzanine cards. Configuration signals from the Qixis FPGA control the
routing of the external MDIOs.

Describe register 0x54 of the Qixis FPGA as a MDIO mux controlled over
i2c and add its child MDIO busses describing the IO SLOTs.

Signed-off-by: Ioana Ciornei <ioana.ciornei at nxp.com>
---
 arch/arm/dts/fsl-lx2160a-qds.dts | 115 ++++++++++++++++++++++++++++++-
 1 file changed, 114 insertions(+), 1 deletion(-)

diff --git a/arch/arm/dts/fsl-lx2160a-qds.dts b/arch/arm/dts/fsl-lx2160a-qds.dts
index 592fd5977e27..4946ce8dfba8 100644
--- a/arch/arm/dts/fsl-lx2160a-qds.dts
+++ b/arch/arm/dts/fsl-lx2160a-qds.dts
@@ -2,7 +2,7 @@
 /*
  * NXP LX2160AQDS device tree source
  *
- * Copyright 2018-2019 NXP
+ * Copyright 2018-2020 NXP
  *
  */
 
@@ -18,6 +18,26 @@
 	};
 };
 
+&dpmac17 {
+	status = "okay";
+	phy-handle = <&rgmii_phy1>;
+	phy-connection-type = "rgmii-id";
+};
+
+&dpmac18 {
+	status = "okay";
+	phy-handle = <&rgmii_phy2>;
+	phy-connection-type = "rgmii-id";
+};
+
+&emdio1 {
+	status = "okay";
+};
+
+&emdio2 {
+	status = "okay";
+};
+
 &esdhc0 {
 	status = "okay";
 };
@@ -30,6 +50,99 @@
 	status = "okay";
 	u-boot,dm-pre-reloc;
 
+	fpga at 66 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "simple-mfd";
+		reg = <0x66>;
+
+		mux-mdio at 54 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "mdio-mux-i2creg";
+			reg = <0x54>;
+			#mux-control-cells = <1>;
+			mux-reg-masks = <0x54 0xf8>; // reg 0x54, bits 7:3
+			mdio-parent-bus = <&emdio1>;
+
+			mdio at 00 {
+				#address-cells = <1>;
+				#size-cells = <0>;
+				reg = <0x00>;
+
+				rgmii_phy1: ethernet-phy at 1 {
+					reg = <0x1>;
+				};
+			};
+			mdio at 08 {
+				#address-cells = <1>;
+				#size-cells = <0>;
+				reg = <0x40>;
+
+				rgmii_phy2: ethernet-phy at 2 {
+					reg = <0x2>;
+				};
+			};
+
+			emdio1_slot1: mdio at c0 { /* I/O Slot #1 */
+				reg = <0xC0>;
+				device-name = "emdio1_slot1";
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+
+			emdio1_slot2: mdio at c8 { /* I/O Slot #2 */
+				reg = <0xC8>;
+				device-name = "emdio1_slot2";
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+
+			emdio1_slot3: mdio at d0 { /* I/O Slot #3 */
+				reg = <0xD0>;
+				device-name = "emdio1_slot3";
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+
+			emdio1_slot4: mdio at d8 { /* I/O Slot #4 */
+				reg = <0xD8>;
+				device-name = "emdio1_slot4";
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+
+			emdio1_slot5: mdio at e0 { /* I/O Slot #5 */
+				reg = <0xE0>;
+				device-name = "emdio1_slot5";
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+
+			emdio1_slot6: mdio at e8 { /* I/O Slot #6 */
+				reg = <0xE8>;
+				device-name = "emdio1_slot6";
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+
+			emdio1_slot7: mdio at f0 { /* I/O Slot #7 */
+				reg = <0xF0>;
+				device-name = "emdio1_slot7";
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+
+			emdio1_slot8: mdio at f8 { /* I/O Slot #8 */
+				reg = <0xF8>;
+				device-name = "emdio1_slot8";
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+		};
+
+	};
+
 	i2c-mux at 77 {
 		compatible = "nxp,pca9547";
 		reg = <0x77>;
-- 
2.17.1