[PATCH 2/2] arm64: dts: lx2160a: add device tree for lx2162aqds board

Meenakshi Aggarwal meenakshi.aggarwal at nxp.com
Wed Sep 9 03:10:12 EDT 2020



> -----Original Message-----
> From: Shawn Guo <shawnguo at kernel.org>
> Sent: Saturday, September 5, 2020 1:24 PM
> To: Meenakshi Aggarwal <meenakshi.aggarwal at nxp.com>
> Cc: robh+dt at kernel.org; Varun Sethi <V.Sethi at nxp.com>; Leo Li
> <leoyang.li at nxp.com>; linux-arm-kernel at lists.infradead.org;
> devicetree at vger.kernel.org; linux-kernel at vger.kernel.org; Ioana Ciornei
> <ioana.ciornei at nxp.com>; Kuldeep Singh <kuldeep.singh at nxp.com>
> Subject: Re: [PATCH 2/2] arm64: dts: lx2160a: add device tree for lx2162aqds
> board
> 
> On Wed, Sep 02, 2020 at 08:43:30PM +0530, meenakshi.aggarwal at nxp.com
> wrote:
> > From: Meenakshi Aggarwal <meenakshi.aggarwal at nxp.com>
> >
> > Add device tree support for LX2162AQDS board.
> > LX2162A has same die as of LX2160A with different packaging.
> >
> > Signed-off-by: Ioana Ciornei <ioana.ciornei at nxp.com>
> > Signed-off-by: Kuldeep Singh <kuldeep.singh at nxp.com>
> > Signed-off-by: Meenakshi Aggarwal <meenakshi.aggarwal at nxp.com>
> > ---
> >  arch/arm64/boot/dts/freescale/Makefile            |   1 +
> >  arch/arm64/boot/dts/freescale/fsl-lx2162a-qds.dts | 336
> > ++++++++++++++++++++++
> >  2 files changed, 337 insertions(+)
> >  create mode 100644 arch/arm64/boot/dts/freescale/fsl-lx2162a-qds.dts
> >
> > diff --git a/arch/arm64/boot/dts/freescale/Makefile
> > b/arch/arm64/boot/dts/freescale/Makefile
> > index a39f0a1..ab9fbd3 100644
> > --- a/arch/arm64/boot/dts/freescale/Makefile
> > +++ b/arch/arm64/boot/dts/freescale/Makefile
> > @@ -27,6 +27,7 @@ dtb-$(CONFIG_ARCH_LAYERSCAPE) +=
> > fsl-lx2160a-clearfog-cx.dtb
> >  dtb-$(CONFIG_ARCH_LAYERSCAPE) += fsl-lx2160a-honeycomb.dtb
> >  dtb-$(CONFIG_ARCH_LAYERSCAPE) += fsl-lx2160a-qds.dtb
> >  dtb-$(CONFIG_ARCH_LAYERSCAPE) += fsl-lx2160a-rdb.dtb
> > +dtb-$(CONFIG_ARCH_LAYERSCAPE) += fsl-lx2162a-qds.dtb
> >
> >  dtb-$(CONFIG_ARCH_MXC) += imx8mm-evk.dtb
> >  dtb-$(CONFIG_ARCH_MXC) += imx8mn-evk.dtb diff --git
> > a/arch/arm64/boot/dts/freescale/fsl-lx2162a-qds.dts
> > b/arch/arm64/boot/dts/freescale/fsl-lx2162a-qds.dts
> > new file mode 100644
> > index 0000000..a81c6a4
> > --- /dev/null
> > +++ b/arch/arm64/boot/dts/freescale/fsl-lx2162a-qds.dts
> > @@ -0,0 +1,336 @@
> > +// SPDX-License-Identifier: (GPL-2.0 OR MIT) // // Device Tree file
> > +for LX2162AQDS // // Copyright 2020 NXP
> > +
> > +/dts-v1/;
> > +
> > +#include "fsl-lx2160a.dtsi"
> > +
> > +/ {
> > +	model = "NXP Layerscape LX2162AQDS";
> > +	compatible = "nxp,lx2162a-qds", "fsl,lx2160a";
> > +
> > +	aliases {
> > +		crypto = &crypto;
> > +		serial0 = &uart0;
> > +	};
> > +
> > +	chosen {
> > +		stdout-path = "serial0:115200n8";
> > +	};
> > +
> > +	sb_3v3: regulator-sb3v3 {
> > +		compatible = "regulator-fixed";
> > +		regulator-name = "MC34717-3.3VSB";
> > +		regulator-min-microvolt = <3300000>;
> > +		regulator-max-microvolt = <3300000>;
> > +		regulator-boot-on;
> > +		regulator-always-on;
> 
> I do not see any point to have regulator-boot-on or regulator-always-on for a
> regulator that doesn't have on/off control.
[Meenakshi Aggarwal] Properties are added to specify that platform firmware's out of reset configuration enabled the regulator and 
regulator should never be disabled or change its operative status.

Can you help in understanding why these optional properties cannot be used together
> 
> > +	};
> > +
> > +	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 RTL8211F PHY #1 RGMII1*/
> > +			reg = <0x00>;
> > +			#address-cells = <1>;
> > +			#size-cells = <0>;
> > +
> > +			rgmii_phy1: ethernet-phy at 1 {
> > +				compatible = "ethernet-phy-id001c.c916";
> > +				reg = <0x1>;
> > +				eee-broken-1000t;
> > +			};
> > +		};
> > +
> > +		mdio at 8 { /* On-board RTL8211F PHY #2 RGMII2*/
> 
> Missing one space before closing comment.
[Meenakshi Aggarwal] will correct in next version
> 
> Shawn
> 
> > +			reg = <0x8>;
> > +			#address-cells = <1>;
> > +			#size-cells = <0>;
> > +
> > +			rgmii_phy2: ethernet-phy at 2 {
> > +				compatible = "ethernet-phy-id001c.c916";
> > +				reg = <0x2>;
> > +				eee-broken-1000t;
> > +			};
> > +		};
> > +
> > +		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>;
> > +		};
> > +	};
> > +};
> > +
> > +&crypto {
> > +	status = "okay";
> > +};
> > +
> > +&dpmac17 {
> > +	phy-handle = <&rgmii_phy1>;
> > +	phy-connection-type = "rgmii-id";
> > +};
> > +
> > +&dpmac18 {
> > +	phy-handle = <&rgmii_phy2>;
> > +	phy-connection-type = "rgmii-id";
> > +};
> > +
> > +&dspi0 {
> > +	status = "okay";
> > +
> > +	dflash0: flash at 0 {
> > +		#address-cells = <1>;
> > +		#size-cells = <1>;
> > +		compatible = "jedec,spi-nor";
> > +		reg = <0>;
> > +		spi-max-frequency = <1000000>;
> > +	};
> > +};
> > +
> > +&dspi1 {
> > +	status = "okay";
> > +
> > +	dflash1: flash at 0 {
> > +		#address-cells = <1>;
> > +		#size-cells = <1>;
> > +		compatible = "jedec,spi-nor";
> > +		reg = <0>;
> > +		spi-max-frequency = <1000000>;
> > +	};
> > +};
> > +
> > +&dspi2 {
> > +	status = "okay";
> > +
> > +	dflash2: flash at 0 {
> > +		#address-cells = <1>;
> > +		#size-cells = <1>;
> > +		compatible = "jedec,spi-nor";
> > +		reg = <0>;
> > +		spi-max-frequency = <1000000>;
> > +	};
> > +};
> > +
> > +&emdio1 {
> > +	status = "okay";
> > +};
> > +
> > +&emdio2 {
> > +	status = "okay";
> > +};
> > +
> > +&esdhc0 {
> > +	status = "okay";
> > +};
> > +
> > +&esdhc1 {
> > +	status = "okay";
> > +};
> > +
> > +&fspi {
> > +	status = "okay";
> > +
> > +	mt35xu512aba0: flash at 0 {
> > +		#address-cells = <1>;
> > +		#size-cells = <1>;
> > +		compatible = "jedec,spi-nor";
> > +		m25p,fast-read;
> > +		spi-max-frequency = <50000000>;
> > +		reg = <0>;
> > +		spi-rx-bus-width = <8>;
> > +		spi-tx-bus-width = <8>;
> > +	};
> > +};
> > +
> > +&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>;
> > +		#address-cells = <1>;
> > +		#size-cells = <0>;
> > +
> > +		i2c at 2 {
> > +			#address-cells = <1>;
> > +			#size-cells = <0>;
> > +			reg = <0x2>;
> > +
> > +			power-monitor at 40 {
> > +				compatible = "ti,ina220";
> > +				reg = <0x40>;
> > +				shunt-resistor = <500>;
> > +			};
> > +
> > +			power-monitor at 41 {
> > +				compatible = "ti,ina220";
> > +				reg = <0x41>;
> > +				shunt-resistor = <1000>;
> > +			};
> > +		};
> > +
> > +		i2c at 3 {
> > +			#address-cells = <1>;
> > +			#size-cells = <0>;
> > +			reg = <0x3>;
> > +
> > +			temperature-sensor at 4c {
> > +				compatible = "nxp,sa56004";
> > +				reg = <0x4c>;
> > +				vcc-supply = <&sb_3v3>;
> > +			};
> > +
> > +			rtc at 51 {
> > +				compatible = "nxp,pcf2129";
> > +				reg = <0x51>;
> > +			};
> > +		};
> > +	};
> > +};
> > +
> > +&sata0 {
> > +	status = "okay";
> > +};
> > +
> > +&sata1 {
> > +	status = "okay";
> > +};
> > +
> > +&sata2 {
> > +	status = "okay";
> > +};
> > +
> > +&sata3 {
> > +	status = "okay";
> > +};
> > +
> > +&uart0 {
> > +	status = "okay";
> > +};
> > +
> > +&uart1 {
> > +	status = "okay";
> > +};
> > +
> > +&usb0 {
> > +	status = "okay";
> > +};
> > --
> > 2.7.4
> >



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