[PATCH v3 04/10] arm64: dts: lx2160a-qds: Add mdio mux nodes

[Li Yang]

From: Pankaj Bansal <pankaj.bansal at nxp.com>

The two external MDIO buses used to communicate with phy devices that
are external to SOC are muxed in LX2160AQDS board.  These buses can be
routed to any one of the eight IO slots on LX2160AQDS board depending on
value in fpga register 0x54.  Additionally the external MDIO1 is used to
communicate to the onboard RGMII phy devices.  The mdio1 is controlled
by bits 4-7 of fpga register and mdio2 is controlled by bits 4-7 of fpga
register.

Signed-off-by: Pankaj Bansal <pankaj.bansal at nxp.com>
Signed-off-by: Li Yang <leoyang.li at nxp.com>
---
 .../boot/dts/freescale/fsl-lx2160a-qds.dts    | 145 ++++++++++++++++++
 1 file changed, 145 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/fsl-lx2160a-qds.dts b/arch/arm64/boot/dts/freescale/fsl-lx2160a-qds.dts
index 8354af0b31e3..2ecfa90f5e28 100644
--- a/arch/arm64/boot/dts/freescale/fsl-lx2160a-qds.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-lx2160a-qds.dts
@@ -31,6 +31,130 @@ sb_3v3: regulator-sb3v3 {
 		regulator-boot-on;
 		regulator-always-on;
 	};
+
+	mdio-mux-1 {
+		compatible = "mdio-mux-multiplexer";
+		mux-controls = <&mux 0>;
+		mdio-parent-bus = <&emdio1>;
+		#address-cells=<1>;
+		#size-cells = <0>;
+
+		mdio at 0 { /* On-board PHY #1 RGMI1*/
+			reg = <0x00>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+
+		mdio at 8 { /* On-board PHY #2 RGMI2*/
+			reg = <0x8>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+
+		mdio at 18 { /* Slot #1 */
+			reg = <0x18>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+
+		mdio at 19 { /* Slot #2 */
+			reg = <0x19>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+
+		mdio at 1a { /* Slot #3 */
+			reg = <0x1a>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+
+		mdio at 1b { /* Slot #4 */
+			reg = <0x1b>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+
+		mdio at 1c { /* Slot #5 */
+			reg = <0x1c>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+
+		mdio at 1d { /* Slot #6 */
+			reg = <0x1d>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+
+		mdio at 1e { /* Slot #7 */
+			reg = <0x1e>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+
+		mdio at 1f { /* Slot #8 */
+			reg = <0x1f>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+	};
+
+	mdio-mux-2 {
+		compatible = "mdio-mux-multiplexer";
+		mux-controls = <&mux 1>;
+		mdio-parent-bus = <&emdio2>;
+		#address-cells=<1>;
+		#size-cells = <0>;
+
+		mdio at 0 { /* Slot #1 (secondary EMI) */
+			reg = <0x00>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+
+		mdio at 1 { /* Slot #2 (secondary EMI) */
+			reg = <0x01>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+
+		mdio at 2 { /* Slot #3 (secondary EMI) */
+			reg = <0x02>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+
+		mdio at 3 { /* Slot #4 (secondary EMI) */
+			reg = <0x03>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+
+		mdio at 4 { /* Slot #5 (secondary EMI) */
+			reg = <0x04>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+
+		mdio at 5 { /* Slot #6 (secondary EMI) */
+			reg = <0x05>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+
+		mdio at 6 { /* Slot #7 (secondary EMI) */
+			reg = <0x06>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+
+		mdio at 7 { /* Slot #8 (secondary EMI) */
+			reg = <0x07>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+	};
 };
 
 &can0 {
@@ -81,6 +205,14 @@ dflash2: flash at 0 {
 	};
 };
 
+&emdio1 {
+	status = "okay";
+};
+
+&emdio2 {
+	status = "okay";
+};
+
 &esdhc0 {
 	status = "okay";
 };
@@ -107,6 +239,19 @@ mt35xu512aba0: flash at 0 {
 &i2c0 {
 	status = "okay";
 
+	fpga at 66 {
+		compatible = "fsl,lx2160aqds-fpga", "fsl,fpga-qixis-i2c",
+			     "simple-mfd";
+		reg = <0x66>;
+
+		mux: mux-controller {
+			compatible = "reg-mux";
+			#mux-control-cells = <1>;
+			mux-reg-masks = <0x54 0xf8>, /* 0: reg 0x54, bits 7:3 */
+					<0x54 0x07>; /* 1: reg 0x54, bit 2:0 */
+		};
+	};
+
 	i2c-mux at 77 {
 		compatible = "nxp,pca9547";
 		reg = <0x77>;
-- 
2.25.1