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Date:   Thu, 6 Jun 2019 09:36:49 +0800
From:   Shawn Guo <shawnguo@...nel.org>
To:     Vladimir Oltean <olteanv@...il.com>
Cc:     leoyang.li@....com, robh+dt@...nel.org,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        lkml <linux-kernel@...r.kernel.org>,
        netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH v2] ARM: dts: Introduce the NXP LS1021A-TSN board

On Thu, Jun 06, 2019 at 04:15:00AM +0300, Vladimir Oltean wrote:
> On Thu, 6 Jun 2019 at 04:04, Shawn Guo <shawnguo@...nel.org> wrote:
> >
> > On Thu, May 30, 2019 at 01:12:22AM +0300, Vladimir Oltean wrote:
> > > The LS1021A-TSN is a development board built by VVDN/Argonboards in
> > > partnership with NXP.
> > >
> > > It features the LS1021A SoC and the first-generation SJA1105T Ethernet
> > > switch for prototyping implementations of a subset of IEEE 802.1 TSN
> > > standards.
> > >
> > > It has two regular Ethernet ports and four switched, TSN-capable ports.
> > >
> > > It also features:
> > > - One Arduino header
> > > - One expansion header
> > > - Two USB 3.0 ports
> > > - One mini PCIe slot
> > > - One SATA interface
> > > - Accelerometer, gyroscope, temperature sensors
> > >
> > > Signed-off-by: Vladimir Oltean <olteanv@...il.com>
> > > ---
> > > Changes from v1:
> > > - Applied Shawn's feedback
> > > - Introduced QSPI flash node
> > >
> > > v1 patch available at:
> > > https://patchwork.kernel.org/patch/10930451/
> > >
> > >  arch/arm/boot/dts/Makefile        |   1 +
> > >  arch/arm/boot/dts/ls1021a-tsn.dts | 288 ++++++++++++++++++++++++++++++
> > >  2 files changed, 289 insertions(+)
> > >  create mode 100644 arch/arm/boot/dts/ls1021a-tsn.dts
> > >
> > > diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> > > index dab2914fa293..a4eb4ca5e148 100644
> > > --- a/arch/arm/boot/dts/Makefile
> > > +++ b/arch/arm/boot/dts/Makefile
> > > @@ -602,6 +602,7 @@ dtb-$(CONFIG_SOC_IMX7ULP) += \
> > >  dtb-$(CONFIG_SOC_LS1021A) += \
> > >       ls1021a-moxa-uc-8410a.dtb \
> > >       ls1021a-qds.dtb \
> > > +     ls1021a-tsn.dtb \
> > >       ls1021a-twr.dtb
> > >  dtb-$(CONFIG_SOC_VF610) += \
> > >       vf500-colibri-eval-v3.dtb \
> > > diff --git a/arch/arm/boot/dts/ls1021a-tsn.dts b/arch/arm/boot/dts/ls1021a-tsn.dts
> > > new file mode 100644
> > > index 000000000000..b05774eac92e
> > > --- /dev/null
> > > +++ b/arch/arm/boot/dts/ls1021a-tsn.dts
> > > @@ -0,0 +1,288 @@
> > > +// SPDX-License-Identifier: GPL-2.0
> > > +/* Copyright 2016-2018 NXP Semiconductors
> > > + * Copyright 2019 Vladimir Oltean <olteanv@...il.com>
> > > + */
> > > +
> > > +/dts-v1/;
> > > +#include "ls1021a.dtsi"
> > > +
> > > +/ {
> > > +     model = "NXP LS1021A-TSN Board";
> > > +
> > > +     sys_mclk: clock-mclk {
> > > +             compatible = "fixed-clock";
> > > +             #clock-cells = <0>;
> > > +             clock-frequency = <24576000>;
> > > +     };
> > > +
> > > +     reg_vdda_codec: regulator-3V3 {
> > > +             compatible = "regulator-fixed";
> > > +             regulator-name = "3P3V";
> > > +             regulator-min-microvolt = <3300000>;
> > > +             regulator-max-microvolt = <3300000>;
> > > +             regulator-always-on;
> > > +     };
> > > +
> > > +     reg_vddio_codec: regulator-2V5 {
> > > +             compatible = "regulator-fixed";
> > > +             regulator-name = "2P5V";
> > > +             regulator-min-microvolt = <2500000>;
> > > +             regulator-max-microvolt = <2500000>;
> > > +             regulator-always-on;
> > > +     };
> > > +};
> > > +
> > > +&enet0 {
> > > +     tbi-handle = <&tbi0>;
> > > +     phy-handle = <&sgmii_phy2>;
> > > +     phy-mode = "sgmii";
> > > +     status = "okay";
> > > +};
> > > +
> > > +&enet1 {
> > > +     tbi-handle = <&tbi1>;
> > > +     phy-handle = <&sgmii_phy1>;
> > > +     phy-mode = "sgmii";
> > > +     status = "okay";
> > > +};
> > > +
> > > +/* RGMII delays added via PCB traces */
> > > +&enet2 {
> > > +     phy-mode = "rgmii";
> > > +     status = "okay";
> > > +
> > > +     fixed-link {
> > > +             speed = <1000>;
> > > +             full-duplex;
> > > +     };
> > > +};
> > > +
> > > +&dspi0 {
> > > +     bus-num = <0>;
> > > +     status = "okay";
> > > +
> > > +     /* ADG704BRMZ 1:4 mux/demux */
> > > +     sja1105: ethernet-switch@1 {
> > > +             reg = <0x1>;
> > > +             #address-cells = <1>;
> > > +             #size-cells = <0>;
> > > +             compatible = "nxp,sja1105t";
> > > +             /* 12 MHz */
> > > +             spi-max-frequency = <12000000>;
> > > +             /* Sample data on trailing clock edge */
> > > +             spi-cpha;
> > > +             fsl,spi-cs-sck-delay = <1000>;
> > > +             fsl,spi-sck-cs-delay = <1000>;
> > > +
> > > +             ports {
> > > +                     #address-cells = <1>;
> > > +                     #size-cells = <0>;
> > > +
> > > +                     port@0 {
> > > +                             /* ETH5 written on chassis */
> > > +                             label = "swp5";
> > > +                             phy-handle = <&rgmii_phy6>;
> > > +                             phy-mode = "rgmii-id";
> > > +                             reg = <0>;
> > > +                     };
> > > +
> > > +                     port@1 {
> > > +                             /* ETH2 written on chassis */
> > > +                             label = "swp2";
> > > +                             phy-handle = <&rgmii_phy3>;
> > > +                             phy-mode = "rgmii-id";
> > > +                             reg = <1>;
> > > +                     };
> > > +
> > > +                     port@2 {
> > > +                             /* ETH3 written on chassis */
> > > +                             label = "swp3";
> > > +                             phy-handle = <&rgmii_phy4>;
> > > +                             phy-mode = "rgmii-id";
> > > +                             reg = <2>;
> > > +                     };
> > > +
> > > +                     port@3 {
> > > +                             /* ETH4 written on chassis */
> > > +                             label = "swp4";
> > > +                             phy-handle = <&rgmii_phy5>;
> > > +                             phy-mode = "rgmii-id";
> > > +                             reg = <3>;
> > > +                     };
> > > +
> > > +                     port@4 {
> > > +                             /* Internal port connected to eth2 */
> > > +                             ethernet = <&enet2>;
> > > +                             phy-mode = "rgmii";
> > > +                             reg = <4>;
> > > +
> > > +                             fixed-link {
> > > +                                     speed = <1000>;
> > > +                                     full-duplex;
> > > +                             };
> > > +                     };
> > > +             };
> > > +     };
> > > +};
> > > +
> > > +&mdio0 {
> > > +     /* AR8031 */
> > > +     sgmii_phy1: ethernet-phy@1 {
> > > +             reg = <0x1>;
> > > +     };
> > > +
> > > +     /* AR8031 */
> > > +     sgmii_phy2: ethernet-phy@2 {
> > > +             reg = <0x2>;
> > > +     };
> > > +
> > > +     /* BCM5464 quad PHY */
> > > +     rgmii_phy3: ethernet-phy@3 {
> > > +             reg = <0x3>;
> > > +     };
> > > +
> > > +     rgmii_phy4: ethernet-phy@4 {
> > > +             reg = <0x4>;
> > > +     };
> > > +
> > > +     rgmii_phy5: ethernet-phy@5 {
> > > +             reg = <0x5>;
> > > +     };
> > > +
> > > +     rgmii_phy6: ethernet-phy@6 {
> > > +             reg = <0x6>;
> > > +     };
> > > +
> > > +     /* SGMII PCS for enet0 */
> > > +     tbi0: tbi-phy@1f {
> > > +             reg = <0x1f>;
> > > +             device_type = "tbi-phy";
> > > +     };
> > > +};
> > > +
> > > +&mdio1 {
> > > +     /* SGMII PCS for enet1 */
> > > +     tbi1: tbi-phy@1f {
> > > +             reg = <0x1f>;
> > > +             device_type = "tbi-phy";
> > > +     };
> > > +};
> > > +
> > > +&i2c0 {
> > > +     status = "okay";
> > > +
> > > +     /* 3 axis accelerometer */
> > > +     accelerometer@1e {
> > > +             compatible = "fsl,fxls8471";
> > > +             position = <0>;
> > > +             reg = <0x1e>;
> > > +     };
> > > +
> > > +     /* Audio codec (SAI2) */
> > > +     codec@2a {
> >
> > audio-codec for node name.
> >
> > > +             compatible = "fsl,sgtl5000";
> > > +             VDDIO-supply = <&reg_vddio_codec>;
> > > +             VDDA-supply = <&reg_vdda_codec>;
> > > +             #sound-dai-cells = <0>;
> > > +             clocks = <&sys_mclk>;
> > > +             reg = <0x2a>;
> > > +     };
> > > +
> > > +     /* Current sensing circuit for 1V VDDCORE PMIC rail */
> > > +     current-sensor@44 {
> > > +             compatible = "ti,ina220";
> > > +             shunt-resistor = <1000>;
> > > +             reg = <0x44>;
> > > +     };
> > > +
> > > +     /* Current sensing circuit for 12V VCC rail */
> > > +     current-sensor@45 {
> > > +             compatible = "ti,ina220";
> > > +             shunt-resistor = <1000>;
> > > +             reg = <0x45>;
> > > +     };
> > > +
> > > +     /* Thermal monitor - case */
> > > +     temperature-sensor@48 {
> > > +             compatible = "national,lm75";
> > > +             reg = <0x48>;
> > > +     };
> > > +
> > > +     /* Thermal monitor - chip */
> > > +     temperature-sensor@4c {
> > > +             compatible = "ti,tmp451";
> > > +             reg = <0x4c>;
> > > +     };
> > > +
> > > +     eeprom@51 {
> > > +             compatible = "atmel,24c32";
> > > +             reg = <0x51>;
> > > +     };
> > > +
> > > +     /* Unsupported devices:
> > > +      * - FXAS21002C Gyroscope at 0x20
> > > +      * - TI ADS7924 4-channel ADC at 0x49
> > > +      */
> > > +};
> > > +
> > > +&qspi {
> > > +     status = "okay";
> > > +
> > > +     flash@0 {
> > > +             /* Rev. A uses 64MB flash, Rev. B & C use 32MB flash */
> > > +             compatible = "jedec,spi-nor", "s25fl256s1", "s25fl512s";
> > > +             spi-max-frequency = <20000000>;
> > > +             #address-cells = <1>;
> > > +             #size-cells = <1>;
> > > +             reg = <0>;
> > > +
> > > +             partitions {
> > > +                     compatible = "fixed-partitions";
> > > +                     #address-cells = <1>;
> > > +                     #size-cells = <1>;
> > > +
> > > +                     partition@0 {
> > > +                             label = "RCW";
> > > +                             reg = <0x0 0x40000>;
> > > +                     };
> > > +
> > > +                     partition@...00 {
> > > +                             label = "U-Boot";
> > > +                             reg = <0x40000 0x300000>;
> > > +                     };
> > > +
> > > +                     partition@...000 {
> > > +                             label = "U-Boot Env";
> > > +                             reg = <0x340000 0x100000>;
> > > +                     };
> > > +             };
> > > +     };
> > > +};
> > > +
> > > +&ifc {
> >
> > Please sort all these labelling nodes alphabetically.
> >
> 
> Hi Shawn,
> 
> It's not entirely clear to me which nodes you mean.

I should have put this comment at a better place, i.e. &dspi0 which
breaks the order in the first place.

&dspi0 {
	...
};

&enet0 {
	...
};

&enet1 {
	...
};

&enet2 {
	...
};

&esdhc {
	...
};

...


Shawn

> >
> > > +     status = "disabled";
> > > +};
> > > +
> > > +&esdhc {
> > > +     status = "okay";
> > > +};
> > > +
> > > +&uart0 {
> > > +     status = "okay";
> > > +};
> > > +
> > > +&lpuart0 {
> > > +     status = "okay";
> > > +};
> > > +
> > > +&lpuart3 {
> > > +     status = "okay";
> > > +};
> > > +
> > > +&sai2 {
> > > +     status = "okay";
> > > +};
> > > +
> > > +&sata {
> > > +     status = "okay";
> > > +};
> > > --
> > > 2.17.1
> > >

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