topic Re: Device tree entry for Ethernet PHY interrupt in P-Series

Device tree entry for Ethernet PHY interrupt

rajeshtripathi — Wed, 22 Jan 2014 21:39:06 GMT

P2020 processor is connected to three Ethernet PHYs as

eTSEC1 - mii

eTSEC2 - sgmii

eTSEC3 - sgmii

The interrupts lines from all three PHYs are connected to IRQ[6] of P2020.

What should be the entry for PHY interrupts in device tree?

This setup is not working

	mdio@520 {
				#address-cells = <1>;
				#size-cells = <0>;
				compatible = "fsl,gianfar-mdio";
				reg = <0x520 0x20>;

				phy0: ethernet-phy@0 {
					interrupt-parent = <&mpic>;
					interrupts = <6 1>;
					compatible = "intel,lxt971";
					reg = <0x0>;
				};

				phy2: ethernet-phy@2 {
					device_type = "ethernet-phy";
					interrupt-parent = <&mpic>;
					interrupts = <6 1>;
					reg = <0x2>;
				};

				phy3: ethernet-phy@3 {
					device_type = "ethernet-phy";
					interrupt-parent = <&mpic>;
					interrupts = <6 1>;
					reg = <0x3>;
				};

Re: Device tree entry for Ethernet PHY interrupt

lunminliang — Thu, 23 Jan 2014 07:44:55 GMT

Related description can be found in kernel directory hierarchy:

Documentation/devicetree/bindings/net/fsl-tsec-phy.txt

Documentation/devicetree/bindings/net/phy.txt

Re: Device tree entry for Ethernet PHY interrupt

yipingwang — Thu, 23 Jan 2014 08:46:43 GMT

Please refer to arch/powerpc/boot/dts/p2020ds.dtsi

mdio@24520 {

| phy0: ethernet-phy@0 {

| interrupts = <3 1 0 0>;

| reg = <0x0>;

| };

| phy1: ethernet-phy@1 {

| interrupts = <3 1 0 0>;

| reg = <0x1>;

| };

| phy2: ethernet-phy@2 {

| interrupts = <3 1 0 0>;

| reg = <0x2>;

| };

| sgmii_phy1: sgmii-phy@1 {

| interrupts = <5 1 0 0>;

| reg = <0x1c>;

| };

| sgmii_phy2: sgmii-phy@2 {

| interrupts = <5 1 0 0>;

| reg = <0x1d>;

| };

| tbi0: tbi-phy@11 {

| reg = <0x11>;

| device_type = "tbi-phy";

| };

Re: Device tree entry for Ethernet PHY interrupt

rajeshtripathi — Thu, 23 Jan 2014 18:19:23 GMT

Thanks for your reply. I've already read that documentation. My question is what interrupt number should be used for IRQ[6] ? Should it be 6 or some other number.

Re: Device tree entry for Ethernet PHY interrupt

rajeshtripathi — Thu, 23 Jan 2014 18:19:37 GMT

Thanks for your reply. I've already read that documentation. My question is what interrupt number should be used for IRQ[6] ? Should it be 6 or some other number.

Re: Device tree entry for Ethernet PHY interrupt

JasonWang_TW — Tue, 28 Jan 2014 08:40:28 GMT

looks like your setting for PHY interrupt as 6 is correct . Does your ethernet work in uboot ? is any log of the errors ?