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0840a47ee8
On the LS1021A-TSN board, the 2 Atheros AR8031 PHYs for eth0 and eth1 have interrupt lines connected to the shared IRQ2_B LS1021A pin. Switching to interrupts offloads the PHY library from the task of polling the MDIO status and AN registers (1, 4, 5) every second. Unfortunately, the BCM5464R quad PHY connected to the switch does not appear to have an interrupt line routed to the SoC. Signed-off-by: Vladimir Oltean <olteanv@gmail.com> Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
294 lines
4.9 KiB
Plaintext
294 lines
4.9 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0
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/* Copyright 2016-2018 NXP Semiconductors
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* Copyright 2019 Vladimir Oltean <olteanv@gmail.com>
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*/
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/dts-v1/;
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#include "ls1021a.dtsi"
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/ {
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model = "NXP LS1021A-TSN Board";
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sys_mclk: clock-mclk {
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compatible = "fixed-clock";
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#clock-cells = <0>;
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clock-frequency = <24576000>;
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};
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reg_vdda_codec: regulator-3V3 {
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compatible = "regulator-fixed";
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regulator-name = "3P3V";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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regulator-always-on;
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};
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reg_vddio_codec: regulator-2V5 {
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compatible = "regulator-fixed";
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regulator-name = "2P5V";
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regulator-min-microvolt = <2500000>;
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regulator-max-microvolt = <2500000>;
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regulator-always-on;
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};
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};
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&dspi0 {
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bus-num = <0>;
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status = "okay";
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/* ADG704BRMZ 1:4 SPI mux/demux */
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sja1105: ethernet-switch@1 {
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reg = <0x1>;
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#address-cells = <1>;
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#size-cells = <0>;
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compatible = "nxp,sja1105t";
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/* 12 MHz */
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spi-max-frequency = <12000000>;
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/* Sample data on trailing clock edge */
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spi-cpha;
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/* SPI controller settings for SJA1105 timing requirements */
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fsl,spi-cs-sck-delay = <1000>;
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fsl,spi-sck-cs-delay = <1000>;
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ports {
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#address-cells = <1>;
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#size-cells = <0>;
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port@0 {
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/* ETH5 written on chassis */
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label = "swp5";
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phy-handle = <&rgmii_phy6>;
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phy-mode = "rgmii-id";
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reg = <0>;
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};
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port@1 {
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/* ETH2 written on chassis */
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label = "swp2";
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phy-handle = <&rgmii_phy3>;
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phy-mode = "rgmii-id";
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reg = <1>;
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};
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port@2 {
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/* ETH3 written on chassis */
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label = "swp3";
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phy-handle = <&rgmii_phy4>;
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phy-mode = "rgmii-id";
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reg = <2>;
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};
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port@3 {
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/* ETH4 written on chassis */
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label = "swp4";
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phy-handle = <&rgmii_phy5>;
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phy-mode = "rgmii-id";
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reg = <3>;
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};
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port@4 {
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/* Internal port connected to eth2 */
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ethernet = <&enet2>;
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phy-mode = "rgmii";
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reg = <4>;
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fixed-link {
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speed = <1000>;
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full-duplex;
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};
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};
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};
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};
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};
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&enet0 {
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tbi-handle = <&tbi0>;
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phy-handle = <&sgmii_phy2>;
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phy-mode = "sgmii";
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status = "okay";
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};
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&enet1 {
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tbi-handle = <&tbi1>;
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phy-handle = <&sgmii_phy1>;
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phy-mode = "sgmii";
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status = "okay";
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};
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/* RGMII delays added via PCB traces */
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&enet2 {
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phy-mode = "rgmii";
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status = "okay";
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fixed-link {
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speed = <1000>;
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full-duplex;
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};
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};
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&esdhc {
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status = "okay";
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};
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&i2c0 {
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status = "okay";
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/* 3 axis accelerometer */
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accelerometer@1e {
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compatible = "fsl,fxls8471";
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position = <0>;
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reg = <0x1e>;
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};
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/* Audio codec (SAI2) */
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audio-codec@2a {
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compatible = "fsl,sgtl5000";
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VDDIO-supply = <®_vddio_codec>;
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VDDA-supply = <®_vdda_codec>;
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#sound-dai-cells = <0>;
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clocks = <&sys_mclk>;
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reg = <0x2a>;
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};
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/* Current sensing circuit for 1V VDDCORE PMIC rail */
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current-sensor@44 {
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compatible = "ti,ina220";
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shunt-resistor = <1000>;
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reg = <0x44>;
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};
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/* Current sensing circuit for 12V VCC rail */
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current-sensor@45 {
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compatible = "ti,ina220";
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shunt-resistor = <1000>;
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reg = <0x45>;
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};
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/* Thermal monitor - case */
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temperature-sensor@48 {
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compatible = "national,lm75";
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reg = <0x48>;
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};
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/* Thermal monitor - chip */
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temperature-sensor@4c {
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compatible = "ti,tmp451";
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reg = <0x4c>;
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};
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eeprom@51 {
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compatible = "atmel,24c32";
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reg = <0x51>;
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};
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/* Unsupported devices:
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* - FXAS21002C Gyroscope at 0x20
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* - TI ADS7924 4-channel ADC at 0x49
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*/
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};
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&ifc {
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status = "disabled";
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};
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&lpuart0 {
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status = "okay";
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};
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&lpuart3 {
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status = "okay";
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};
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&mdio0 {
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/* AR8031 */
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sgmii_phy1: ethernet-phy@1 {
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reg = <0x1>;
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/* SGMII1_PHY_INT_B: connected to IRQ2, active low */
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interrupts-extended = <&extirq 2 IRQ_TYPE_LEVEL_LOW>;
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};
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/* AR8031 */
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sgmii_phy2: ethernet-phy@2 {
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reg = <0x2>;
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/* SGMII2_PHY_INT_B: connected to IRQ2, active low */
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interrupts-extended = <&extirq 2 IRQ_TYPE_LEVEL_LOW>;
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};
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/* BCM5464 quad PHY */
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rgmii_phy3: ethernet-phy@3 {
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reg = <0x3>;
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};
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rgmii_phy4: ethernet-phy@4 {
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reg = <0x4>;
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};
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rgmii_phy5: ethernet-phy@5 {
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reg = <0x5>;
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};
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rgmii_phy6: ethernet-phy@6 {
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reg = <0x6>;
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};
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/* SGMII PCS for enet0 */
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tbi0: tbi-phy@1f {
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reg = <0x1f>;
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device_type = "tbi-phy";
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};
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};
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&mdio1 {
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/* SGMII PCS for enet1 */
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tbi1: tbi-phy@1f {
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reg = <0x1f>;
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device_type = "tbi-phy";
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};
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};
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&qspi {
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status = "okay";
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flash@0 {
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/* Rev. A uses 64MB flash, Rev. B & C use 32MB flash */
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compatible = "jedec,spi-nor", "s25fl256s1", "s25fl512s";
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spi-max-frequency = <20000000>;
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#address-cells = <1>;
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#size-cells = <1>;
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reg = <0>;
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partitions {
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compatible = "fixed-partitions";
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#address-cells = <1>;
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#size-cells = <1>;
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partition@0 {
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label = "RCW";
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reg = <0x0 0x40000>;
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};
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partition@40000 {
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label = "U-Boot";
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reg = <0x40000 0x300000>;
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};
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partition@340000 {
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label = "U-Boot Env";
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reg = <0x340000 0x100000>;
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};
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};
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};
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};
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&sai2 {
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status = "okay";
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};
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&sata {
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status = "okay";
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};
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&uart0 {
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status = "okay";
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};
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