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Message-ID: <CAHCN7x+ic9Pii82SRZqVxXZqKkb4iJiMCkPpxnOUFVajQL-t0A@mail.gmail.com>
Date: Fri, 16 Dec 2022 07:16:53 -0600
From: Adam Ford <aford173@...il.com>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc: linux-arm-kernel@...ts.infradead.org, aford@...conembedded.com,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Shawn Guo <shawnguo@...nel.org>,
Sascha Hauer <s.hauer@...gutronix.de>,
Pengutronix Kernel Team <kernel@...gutronix.de>,
Fabio Estevam <festevam@...il.com>,
NXP Linux Team <linux-imx@....com>,
Li Yang <leoyang.li@....com>, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] arm64: dts: imx: Introduce imx8mp-beacon-kit
On Fri, Dec 16, 2022 at 5:37 AM Krzysztof Kozlowski
<krzysztof.kozlowski@...aro.org> wrote:
>
> On 16/12/2022 00:37, Adam Ford wrote:
> > Beacon Embedded has an i.MX8M Plus development kit which consists
> > of a SOM + baseboard. The SOM includes Bluetooth, WiFi, QSPI, eMMC,
> > and one Ethernet PHY. The baseboard includes audio, HDMI, USB-C Dual
> > Role port, USB Hub with five ports, a PCIe slot, and a second Ethernet
> > PHY.
> >
> > Signed-off-by: Adam Ford <aford173@...il.com>
> >
> > diff --git a/arch/arm64/boot/dts/freescale/imx8mp-beacon-kit.dts b/arch/arm64/boot/dts/freescale/imx8mp-beacon-kit.dts
<snip>
>
> Does not look like you tested the bindings. Please run `make
> dt_binding_check` (see
> Documentation/devicetree/bindings/writing-schema.rst for instructions).
I totally forgot. Thanks for the review. I'll post a V2 tonight or
tomorrow after running the dt_binding_check. Sorry to waste your
time. I should have known better.
adam
>
> > + label = "btn0";
> > + linux,code = <BTN_0>;
> > + gpios = <&pca6416_1 12 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
> > + wakeup-source;
> > + };
> > +
> > + btn1 {
> > + label = "btn1";
> > + linux,code = <BTN_1>;
> > + gpios = <&pca6416_1 13 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
> > + wakeup-source;
> > + };
> > +
> > + btn2 {
> > + label = "btn2";
> > + linux,code = <BTN_2>;
> > + gpios = <&pca6416_1 14 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
> > + wakeup-source;
> > + };
> > +
> > + btn3 {
> > + label = "btn3";
> > + linux,code = <BTN_3>;
> > + gpios = <&pca6416_1 15 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
> > + wakeup-source;
> > + };
> > + };
> > +
> > + leds {
> > + compatible = "gpio-leds";
> > +
> > + led0 {
>
> I think preferred is led-0
>
> > + label = "gen_led0";
> > + gpios = <&pca6416_1 4 GPIO_ACTIVE_HIGH>;
> > + default-state = "off";
> > + };
> > +
> > + led1 {
>
> led-1
>
> > + label = "gen_led1";
> > + gpios = <&pca6416_1 5 GPIO_ACTIVE_HIGH>;
> > + default-state = "off";
> > + };
> > +
> > + led2 {
> > + label = "gen_led2";
> > + gpios = <&pca6416_1 6 GPIO_ACTIVE_HIGH>;
> > + default-state = "off";
> > + };
> > +
> > + led3 {
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&pinctrl_led3>;
> > + label = "heartbeat";
> > + gpios = <&gpio4 28 GPIO_ACTIVE_HIGH>;
> > + linux,default-trigger = "heartbeat";
> > + };
> > + };
> > +
> > + pcie0_refclk: pcie0-refclk {
> > + compatible = "fixed-clock";
> > + #clock-cells = <0>;
> > + clock-frequency = <100000000>;
> > + };
> > +
> > + reg_usdhc2_vmmc: regulator-usdhc2 {
> > + compatible = "regulator-fixed";
> > + regulator-name = "VSD_3V3";
> > + regulator-min-microvolt = <3300000>;
> > + regulator-max-microvolt = <3300000>;
> > + gpio = <&gpio2 19 GPIO_ACTIVE_HIGH>;
> > + enable-active-high;
> > + startup-delay-us = <100>;
> > + off-on-delay-us = <20000>;
> > + };
> > +
> > + reg_usb1_host_vbus: regulator-usb1-vbus {
> > + compatible = "regulator-fixed";
> > + regulator-name = "usb1_host_vbus";
> > + regulator-max-microvolt = <5000000>;
> > + regulator-min-microvolt = <5000000>;
> > + gpio = <&pca6416_1 0 GPIO_ACTIVE_HIGH>;
> > + enable-active-high;
> > + };
> > +};
> > +
> > +&ecspi2 {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > + fsl,spi-num-chipselects = <1>;
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&pinctrl_ecspi2>;
> > + cs-gpios = <&gpio5 13 GPIO_ACTIVE_LOW>;
> > + status = "okay";
> > +
> > + tpm: tpm_tis@0 {
>
> Node names should be generic. No underscores in node name.
>
> https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation
>
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&pinctrl_tpm>;
> > + compatible = "infineon,slb9670";
> > + reg = <0>;
>
> compatible is the first propert, reg is second.
>
> > + reset-gpios = <&gpio4 0 GPIO_ACTIVE_LOW>;
> > + spi-max-frequency = <18500000>;
> > + };
> > +};
> > +
> > +&fec {
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&pinctrl_fec>;
> > + phy-mode = "rgmii-id";
> > + phy-handle = <ðphy1>;
> > + phy-reset-gpios = <&gpio4 18 GPIO_ACTIVE_LOW>;
> > + phy-reset-post-delay = <150>;
> > + phy-reset-duration = <10>;
> > + fsl,magic-packet;
> > + status = "okay";
> > +
> > + mdio {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > +
> > + ethphy1: ethernet1-phy@3 {
> > + compatible = "ethernet-phy-ieee802.3-c22";
> > + reg = <3>;
> > + };
> > + };
> > +};
> > +
> > +&flexcan1 {
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&pinctrl_flexcan1>;
> > + status = "okay";
> > +};
> > +
> > +
> > +&i2c2 {
> > + clock-frequency = <384000>;
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&pinctrl_i2c2>;
> > + status = "okay";
> > +
> > + pca6416_3: gpio-i2c2@20 {
>
> Node names should be generic, so i2c
> https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation
>
> > + compatible = "nxp,pcal6416";
> > + reg = <0x20>;
> > + gpio-controller;
> > + #gpio-cells = <2>;
> > + interrupt-parent = <&gpio4>;
> > + interrupts = <27 IRQ_TYPE_EDGE_FALLING>;
> > + interrupt-controller;
> > + #interrupt-cells = <2>;
> > + };
> > +};
> > +
> > +&i2c3 {
> > + /* Connected to USB Hub */
> > + ptn5110: tcpc@52 {
>
> What is a tcpc?
>
> > + compatible = "nxp,ptn5110";
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&pinctrl_typec>;
> > + reg = <0x52>;
>
> Order of your properties is quite random...
>
> > + interrupt-parent = <&gpio4>;
> > + interrupts = <1 IRQ_TYPE_LEVEL_LOW>;
> > +
> > + usb_con: connector {
> > + compatible = "usb-c-connector";
> > + label = "USB-C";
> > + power-role = "source";
> > + data-role = "host";
> > + source-pdos = <PDO_FIXED(5000, 3000, PDO_FIXED_USB_COMM)>;
> > + };
> > + };
> > +};
> > +
> > +&i2c4 {
> > + clock-frequency = <384000>;
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&pinctrl_i2c4>;
> > + status = "okay";
> > +
> > + pca6416: gpio@20 {
> > + compatible = "nxp,pcal6416";
> > + reg = <0x20>;
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&pinctrl_pcal6414>;
> > + gpio-controller;
> > + #gpio-cells = <2>;
> > + interrupt-parent = <&gpio4>;
> > + interrupts = <27 IRQ_TYPE_EDGE_FALLING>;
> > + interrupt-controller;
> > + #interrupt-cells = <2>;
> > + };
> > +
> > + pca6416_1: gpio@21 {
> > + compatible = "nxp,pcal6416";
> > + reg = <0x21>;
> > + gpio-controller;
> > + #gpio-cells = <2>;
> > + interrupt-parent = <&gpio4>;
> > + interrupts = <27 IRQ_TYPE_EDGE_FALLING>;
> > + interrupt-controller;
> > + #interrupt-cells = <2>;
> > +
> > + usb-reset {
> > + gpio-hog;
> > + gpios = <7 0>;
> > + output-low;
> > + line-name = "USB Hub Reset";
> > + };
> > + };
> > +
> > + hd3ss3220@47 {
>
> Node names should be generic.
> https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation
>
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&pinctrl_hd3ss3220>;
> > + compatible = "ti,hd3ss3220";
> > + reg = <0x47>;
>
> pinctrl is not the first property.
>
> > + interrupt-parent = <&gpio4>;
> > + interrupts = <19 IRQ_TYPE_LEVEL_LOW>;
> > +
> > + ports {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > + port@0 {
> > + reg = <0>;
> > + hd3ss3220_in_ep: endpoint {
> > + remote-endpoint = <&ss_ep>;
> > + };
> > + };
> > + port@1 {
> > + reg = <1>;
>
> Wrong indentation.
>
> > + hd3ss3220_out_ep: endpoint {
> > + remote-endpoint = <&usb3_role_switch>;
> > + };
> > + };
> > + };
> > + };
> > +};
> > +
> > +&gpio2 {
> > + usb-reset {
>
> Does it pass dtbs_check?
>
> > + gpio-hog;
> > + gpios = <20 0>;
> > + output-low;
> > + line-name = "USB-C Mux En";
> > + };
> > +};
> > +
> > +&pcie {
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&pinctrl_pcie>;
> > + disable-gpio = <&gpio1 5 GPIO_ACTIVE_LOW>;
> > + reset-gpio = <&gpio4 21 GPIO_ACTIVE_LOW>;
> > + clocks = <&clk IMX8MP_CLK_HSIO_ROOT>,
> > + <&clk IMX8MP_CLK_PCIE_ROOT>,
> > + <&clk IMX8MP_CLK_HSIO_AXI>;
> > + clock-names = "pcie", "pcie_aux", "pcie_bus";
> > + assigned-clocks = <&clk IMX8MP_CLK_PCIE_AUX>;
> > + assigned-clock-rates = <10000000>;
> > + assigned-clock-parents = <&clk IMX8MP_SYS_PLL2_50M>;
> > + status = "okay";
> > +};
>
> (...)
>
>
> > diff --git a/arch/arm64/boot/dts/freescale/imx8mp-beacon-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-beacon-som.dtsi
> > new file mode 100644
> > index 000000000000..c915116cfc4b
> > --- /dev/null
> > +++ b/arch/arm64/boot/dts/freescale/imx8mp-beacon-som.dtsi
> > @@ -0,0 +1,500 @@
> > +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> > +/*
> > + * Copyright LogicPD, Inc. dba Beacon EmbeddedWorks
> > + */
> > +
> > +/ {
> > + aliases {
> > + rtc0 = &rtc;
> > + rtc1 = &snvs_rtc;
> > + };
> > +
> > + memory@...00000 {
> > + device_type = "memory";
> > + reg = <0x0 0x40000000 0 0xc0000000>,
> > + <0x1 0x00000000 0 0xc0000000>;
> > + };
> > +
> > + reg_wl_bt: regulator-wl-bt-pow-dwn {
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&pinctrl_reg_wl_bt>;
> > + interrupt-parent = <&gpio1>;
> > + compatible = "regulator-fixed";
> > + regulator-name = "wl-bt-pow-dwn";
> > + regulator-min-microvolt = <3300000>;
> > + regulator-max-microvolt = <3300000>;
> > + gpio = <&gpio2 6 GPIO_ACTIVE_LOW>;
> > + startup-delay-us = <70000>;
> > + regulator-always-on;
> > + };
> > +};
> > +
> > +&A53_0 {
> > + cpu-supply = <&buck2>;
> > +};
> > +
> > +&A53_1 {
> > + cpu-supply = <&buck2>;
> > +};
> > +
> > +&A53_2 {
> > + cpu-supply = <&buck2>;
> > +};
> > +
> > +&A53_3 {
> > + cpu-supply = <&buck2>;
> > +};
> > +
> > +&dsp {
> > + status = "okay";
> > +};
> > +
> > +&eqos {
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&pinctrl_eqos>;
> > + phy-mode = "rgmii-id";
> > + phy-handle = <ðphy0>;
> > + snps,force_thresh_dma_mode;
> > + snps,mtl-tx-config = <&mtl_tx_setup>;
> > + snps,mtl-rx-config = <&mtl_rx_setup>;
> > + status = "okay";
> > +
> > + mdio {
> > + compatible = "snps,dwmac-mdio";
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > +
> > + ethphy0: ethernet-phy@3 {
> > + compatible = "ethernet-phy-ieee802.3-c22";
> > + interrupt-parent = <&gpio1>;
> > + interrupts = <10 IRQ_TYPE_LEVEL_LOW>;
> > + reg = <3>;
> > + };
> > + };
> > +
> > + mtl_tx_setup: tx-queues-config {
> > + snps,tx-queues-to-use = <5>;
> > + snps,tx-sched-sp;
> > +
> > + queue0 {
> > + snps,dcb-algorithm;
> > + snps,priority = <0x1>;
> > + };
> > +
> > + queue1 {
> > + snps,dcb-algorithm;
> > + snps,priority = <0x2>;
> > + };
> > +
> > + queue2 {
> > + snps,dcb-algorithm;
> > + snps,priority = <0x4>;
> > + };
> > +
> > + queue3 {
> > + snps,dcb-algorithm;
> > + snps,priority = <0x8>;
> > + };
> > +
> > + queue4 {
> > + snps,dcb-algorithm;
> > + snps,priority = <0xf0>;
> > + };
> > + };
> > +
> > + mtl_rx_setup: rx-queues-config {
> > + snps,rx-queues-to-use = <5>;
> > + snps,rx-sched-sp;
> > +
> > + queue0 {
> > + snps,dcb-algorithm;
> > + snps,priority = <0x1>;
> > + snps,map-to-dma-channel = <0>;
> > + };
> > +
> > + queue1 {
> > + snps,dcb-algorithm;
> > + snps,priority = <0x2>;
> > + snps,map-to-dma-channel = <1>;
> > + };
> > +
> > + queue2 {
> > + snps,dcb-algorithm;
> > + snps,priority = <0x4>;
> > + snps,map-to-dma-channel = <2>;
> > + };
> > +
> > + queue3 {
> > + snps,dcb-algorithm;
> > + snps,priority = <0x8>;
> > + snps,map-to-dma-channel = <3>;
> > + };
> > +
> > + queue4 {
> > + snps,dcb-algorithm;
> > + snps,priority = <0xf0>;
> > + snps,map-to-dma-channel = <4>;
> > + };
> > + };
> > +};
> > +
> > +&flexspi {
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&pinctrl_flexspi0>;
> > + status = "okay";
> > +
> > + flash0: mt25qu256aba@0 {
>
> Node names should be generic.
> https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation
>
> > + reg = <0>;
> > + #address-cells = <1>;
> > + #size-cells = <1>;
> > + compatible = "jedec,spi-nor";
> > + spi-max-frequency = <80000000>;
> > + spi-tx-bus-width = <1>;
> > + spi-rx-bus-width = <4>;
> > + };
> > +};
> > +
> > +&i2c1 {
> > + clock-frequency = <384000>;
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&pinctrl_i2c1>;
> > + status = "okay";
> > +
> > + pmic@25 {
> > + compatible = "nxp,pca9450c";
> > + reg = <0x25>;
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&pinctrl_pmic>;
> > + interrupt-parent = <&gpio1>;
> > + interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
> > +
> > + regulators {
> > + buck1: BUCK1 {
> > + regulator-name = "BUCK1";
> > + regulator-min-microvolt = <600000>;
> > + regulator-max-microvolt = <2187500>;
> > + regulator-boot-on;
> > + regulator-always-on;
> > + regulator-ramp-delay = <3125>;
> > + };
> > +
> > + buck2: BUCK2 {
> > + regulator-name = "BUCK2";
> > + regulator-min-microvolt = <600000>;
> > + regulator-max-microvolt = <2187500>;
> > + regulator-boot-on;
> > + regulator-always-on;
> > + regulator-ramp-delay = <3125>;
> > + nxp,dvs-run-voltage = <950000>;
> > + nxp,dvs-standby-voltage = <850000>;
> > + };
> > +
> > + buck4: BUCK4 {
> > + regulator-name = "BUCK4";
> > + regulator-min-microvolt = <3300000>;
> > + regulator-max-microvolt = <3300000>;
> > + regulator-boot-on;
> > + regulator-always-on;
> > + };
> > +
> > + buck5: BUCK5 {
> > + regulator-name = "BUCK5";
> > + regulator-min-microvolt = <1800000>;
> > + regulator-max-microvolt = <1800000>;
> > + regulator-boot-on;
> > + regulator-always-on;
> > + };
> > +
> > + buck6: BUCK6 {
> > + regulator-name = "BUCK6";
> > + regulator-min-microvolt = <600000>;
> > + regulator-max-microvolt = <3400000>;
> > + regulator-boot-on;
> > + regulator-always-on;
> > + };
> > +
> > + ldo1: LDO1 {
> > + regulator-name = "LDO1";
> > + regulator-min-microvolt = <1600000>;
> > + regulator-max-microvolt = <1800000>;
> > + regulator-boot-on;
> > + regulator-always-on;
> > + };
> > +
> > + ldo3: LDO3 {
> > + regulator-name = "LDO3";
> > + regulator-min-microvolt = <800000>;
> > + regulator-max-microvolt = <1800000>;
> > + regulator-boot-on;
> > + regulator-always-on;
> > + };
> > +
> > + ldo4: LDO4 {
> > + regulator-name = "LDO4";
> > + regulator-min-microvolt = <800000>;
> > + regulator-max-microvolt = <3300000>;
> > + regulator-boot-on;
> > + regulator-always-on;
> > + };
> > +
> > + ldo5: LDO5 {
> > + regulator-name = "LDO5";
> > + regulator-min-microvolt = <1800000>;
> > + regulator-max-microvolt = <3300000>;
> > + regulator-boot-on;
> > + regulator-always-on;
> > + };
> > + };
> > + };
> > +};
> > +
> > +&i2c3 {
> > + clock-frequency = <384000>;
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&pinctrl_i2c3>;
> > + status = "okay";
> > +
> > + eeprom@50 {
> > + compatible = "atmel,24c64";
> > + pagesize = <32>;
> > + read-only; /* Manufacturing EEPROM programmed at factory */
> > + reg = <0x50>;
>
> reg is second property
>
> > + };
> > +
> > + rtc: rtc@51 {
> > + compatible = "nxp,pcf85263";
> > + reg = <0x51>;
> > + quartz-load-femtofarads = <12500>;
> > + };
> > +};
> > +
> > +&snvs_pwrkey {
> > + status = "okay";
> > +};
> > +
> > +&uart1 {
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&pinctrl_uart1>;
> > + assigned-clocks = <&clk IMX8MP_CLK_UART1>;
> > + assigned-clock-parents = <&clk IMX8MP_SYS_PLL1_80M>;
> > + uart-has-rtscts;
> > + status = "okay";
> > +};
> > +
> > +&usdhc1 {
> > + vmmc-supply = <®_wl_bt>;
> > + pinctrl-names = "default", "state_100mhz", "state_200mhz";
> > + pinctrl-0 = <&pinctrl_usdhc1>;
> > + pinctrl-1 = <&pinctrl_usdhc1_100mhz>;
> > + pinctrl-2 = <&pinctrl_usdhc1_200mhz>;
> > + bus-width = <4>;
> > + max-frequency = <200000000>;
> > + cap-sd-highspeed;
> > + sd-uhs-sdr50;
> > + sd-uhs-sdr104;
> > + keep-power-in-suspend;
> > + enable-sdio-wakeup;
> > + cap-sdio-irq;
> > + non-removable;
> > + cap-power-off-card;
> > + status = "okay";
>
> status is usually last
>
> > + #address-cells = <1>;
> > + #size-cells = <0>;
>
> Do you need these?
> > +
> > + mwifiex: wifi@1 {
> > + reg = <1>;
> > + compatible = "marvell,sd8997";
>
> compatible, then reg
>
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&pinctrl_wlan>;
> > + interrupt-parent = <&gpio2>;
> > + interrupts = <9 IRQ_TYPE_LEVEL_LOW>;
> > + };
> > +};
>
> Best regards,
> Krzysztof
>
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