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From: Pankaj Bansal <pankaj.bansal@nxp.com>
To: Shawn Guo <shawnguo@kernel.org>, Leo Li <leoyang.li@nxp.com>,
	Andrew Lunn <andrew@lunn.ch>,
	Florian Fainelli <f.fainelli@gmail.com>
Cc: "netdev@vger.kernel.org" <netdev@vger.kernel.org>,
	Pankaj Bansal <pankaj.bansal@nxp.com>,
	"linux-arm-kernel@lists.infradead.org"
	<linux-arm-kernel@lists.infradead.org>
Subject: [PATCH v3] arm64: dts: lx2160aqds: Add mdio mux nodes
Date: Wed, 6 Feb 2019 09:40:33 +0000
Message-ID: <20190206150520.9683-1-pankaj.bansal@nxp.com> (raw)

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 0-3 of fpga register.

Signed-off-by: Pankaj Bansal <pankaj.bansal@nxp.com>
---

Notes:
    V3:
    - Add status = disabled in soc file and status = okay in board file
      for external MDIO nodes
    - Add interrupts property in external mdio nodes in soc file
    V2:
    - removed unnecassary TODO statements
    - removed device_type from mdio nodes
    - change the case of hex number to lowercase
    - removed board specific comments from soc file

 .../boot/dts/freescale/fsl-lx2160a-qds.dts   | 123 +++++++++++++++++
 .../boot/dts/freescale/fsl-lx2160a.dtsi      |  22 +++
 2 files 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 99a22abbe725..079264b391a2 100644
--- a/arch/arm64/boot/dts/freescale/fsl-lx2160a-qds.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-lx2160a-qds.dts
@@ -35,6 +35,14 @@
 	status = "okay";
 };
 
+&emdio1 {
+	status = "okay";
+};
+
+&emdio2 {
+	status = "okay";
+};
+
 &esdhc0 {
 	status = "okay";
 };
@@ -46,6 +54,121 @@
 &i2c0 {
 	status = "okay";
 
+	fpga@66 {
+		compatible = "fsl,lx2160aqds-fpga", "fsl,fpga-qixis-i2c";
+		reg = <0x66>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		mdio-mux-1@54 {
+			mdio-parent-bus = <&emdio1>;
+			reg = <0x54>;		 /* BRDCFG4 */
+			mux-mask = <0xf8>;      /* EMI1_MDIO */
+			#address-cells=<1>;
+			#size-cells = <0>;
+
+			mdio@0 {
+				reg = <0x00>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+			mdio@40 {
+				reg = <0x40>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+			mdio@c0 {
+				reg = <0xc0>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+			mdio@c8 {
+				reg = <0xc8>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+			mdio@d0 {
+				reg = <0xd0>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+			mdio@d8 {
+				reg = <0xd8>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+			mdio@e0 {
+				reg = <0xe0>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+			mdio@e8 {
+				reg = <0xe8>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+			mdio@f0 {
+				reg = <0xf0>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+			mdio@f8 {
+				reg = <0xf8>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+		};
+
+		mdio-mux-2@54 {
+			mdio-parent-bus = <&emdio2>;
+			reg = <0x54>;		 /* BRDCFG4 */
+			mux-mask = <0x07>;      /* EMI2_MDIO */
+			#address-cells=<1>;
+			#size-cells = <0>;
+
+			mdio@0 {
+				reg = <0x00>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+			mdio@1 {
+				reg = <0x01>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+			mdio@2 {
+				reg = <0x02>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+			mdio@3 {
+				reg = <0x03>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+			mdio@4 {
+				reg = <0x04>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+			mdio@5 {
+				reg = <0x05>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+			mdio@6 {
+				reg = <0x06>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+			mdio@7 {
+				reg = <0x07>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+		};
+	};
+
 	i2c-mux@77 {
 		compatible = "nxp,pca9547";
 		reg = <0x77>;
diff --git a/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi b/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi
index a79f5c1ea56d..7def5252ac1a 100644
--- a/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi
@@ -762,5 +762,27 @@
 				     <GIC_SPI 209 IRQ_TYPE_LEVEL_HIGH>;
 			dma-coherent;
 		};
+
+		/* WRIOP0: 0x8b8_0000, E-MDIO1: 0x1_6000 */
+		emdio1: mdio@8b96000 {
+			compatible = "fsl,fman-memac-mdio";
+			reg = <0x0 0x8b96000 0x0 0x1000>;
+			interrupts = <GIC_SPI 90 IRQ_TYPE_LEVEL_HIGH>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			little-endian;	/* force the driver in LE mode */
+			status = "disabled";
+		};
+
+		/* WRIOP0: 0x8b8_0000, E-MDIO2: 0x1_7000 */
+		emdio2: mdio@8b97000 {
+			compatible = "fsl,fman-memac-mdio";
+			reg = <0x0 0x8b97000 0x0 0x1000>;
+			interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			little-endian;	/* force the driver in LE mode */
+			status = "disabled";
+		};
 	};
 };
-- 
2.17.1


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Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-06  9:40 Pankaj Bansal [this message]
2019-02-11  3:00 ` Shawn Guo
2019-02-11 20:43   ` Leo Li
2019-02-12  3:26     ` Pankaj Bansal
2019-02-12 18:01       ` Li Yang
2019-02-14 22:32         ` Li Yang
2019-02-18  5:49           ` Pankaj Bansal

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