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Message-ID: <4473378f-1c14-3ec7-5380-12f49f3b1e3b@linaro.org>
Date: Tue, 19 Jul 2022 12:01:34 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Martyn Welch <martyn.welch@...labora.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>
Cc: devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org, kernel@...labora.com
Subject: Re: [PATCH] arm64: dts: Add device trees for MSC SM2S-IMX8PLUS SoM
and carrier board
On 18/07/2022 17:23, Martyn Welch wrote:
> Add device trees for one of a number of MSCs variants of the SM2S-IMX8PLUS
> system on module along with the compatible SM2S-SK-AL-EP1 carrier board.
> As the name suggests, this family of SoMs use the NXP i.MX8MP SoC and
> provide the SMARC module interface.
>
> Signed-off-by: Martyn Welch <martyn.welch@...labora.com>
Use subject prefix matching subsystem. I expect other folks in Collabora
help you in that, so you do not need our advices for such trivial stuff. :)
>
> ---
> arch/arm64/boot/dts/freescale/Makefile | 1 +
> .../freescale/imx8mp-msc-sm2s-14N0600E.dts | 69 ++
> .../dts/freescale/imx8mp-msc-sm2s-ep1.dts | 65 ++
> .../boot/dts/freescale/imx8mp-msc-sm2s.dtsi | 869 ++++++++++++++++++
> 4 files changed, 1004 insertions(+)
> create mode 100644 arch/arm64/boot/dts/freescale/imx8mp-msc-sm2s-14N0600E.dts
> create mode 100644 arch/arm64/boot/dts/freescale/imx8mp-msc-sm2s-ep1.dts
> create mode 100644 arch/arm64/boot/dts/freescale/imx8mp-msc-sm2s.dtsi
>
> diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
> index 238a83e5b8c6..2484d646c6da 100644
> --- a/arch/arm64/boot/dts/freescale/Makefile
> +++ b/arch/arm64/boot/dts/freescale/Makefile
> @@ -81,6 +81,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mn-var-som-symphony.dtb
> dtb-$(CONFIG_ARCH_MXC) += imx8mn-venice-gw7902.dtb
> dtb-$(CONFIG_ARCH_MXC) += imx8mp-evk.dtb
> dtb-$(CONFIG_ARCH_MXC) += imx8mp-icore-mx8mp-edimm2.2.dtb
> +dtb-$(CONFIG_ARCH_MXC) += imx8mp-msc-sm2s-ep1.dtb
> dtb-$(CONFIG_ARCH_MXC) += imx8mp-phyboard-pollux-rdk.dtb
> dtb-$(CONFIG_ARCH_MXC) += imx8mp-venice-gw74xx.dtb
> dtb-$(CONFIG_ARCH_MXC) += imx8mp-verdin-nonwifi-dahlia.dtb
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp-msc-sm2s-14N0600E.dts b/arch/arm64/boot/dts/freescale/imx8mp-msc-sm2s-14N0600E.dts
> new file mode 100644
> index 000000000000..fb19f2da5087
> --- /dev/null
> +++ b/arch/arm64/boot/dts/freescale/imx8mp-msc-sm2s-14N0600E.dts
> @@ -0,0 +1,69 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (C) 2022 Avnet Embedded GmbH
> + */
> +
> +#include "imx8mp-msc-sm2s.dtsi"
> +
> +/ {
> + model = "MSC SM2S-IMX8PLUS-QC6-14N0600E SoM";
Missing compatibles, missing bindings.
> +
> + memory@...00000 {
> + device_type = "memory";
> + reg = <0x0 0x40000000 0 0x80000000>; /* bank0, 2GiB */
> + };
> +};
> +
> +&cpu_alert0 {
> + temperature = <95000>;
> +};
> +
> +&cpu_crit0 {
> + temperature = <105000>;
> +};
> +
> +&soc_alert0 {
> + temperature = <95000>;
> +};
> +
> +&soc_crit0 {
> + temperature = <105000>;
> +};
> +
> +&tca6424 {
> + gbe0_int {
> + gpio-hog;
> + input;
> + gpios = <3 GPIO_ACTIVE_LOW>;
> + };
> +
> + gbe1_int {
> + gpio-hog;
> + input;
> + gpios = <4 GPIO_ACTIVE_LOW>;
> + };
> +
> + cam2_rst {
> + gpio-hog;
> + output-high;
> + gpios = <9 GPIO_ACTIVE_LOW>;
> + };
> +
> + cam2_pwr {
> + gpio-hog;
> + output-high;
> + gpios = <10 GPIO_ACTIVE_LOW>;
> + };
> +
> + tpm_int {
> + gpio-hog;
> + input;
> + gpios = <13 GPIO_ACTIVE_LOW>;
> + };
> +
> + wifi_int {
> + gpio-hog;
> + input;
> + gpios = <14 GPIO_ACTIVE_LOW>;
> + };
> +};
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp-msc-sm2s-ep1.dts b/arch/arm64/boot/dts/freescale/imx8mp-msc-sm2s-ep1.dts
> new file mode 100644
> index 000000000000..c915e2370733
> --- /dev/null
> +++ b/arch/arm64/boot/dts/freescale/imx8mp-msc-sm2s-ep1.dts
> @@ -0,0 +1,65 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (C) 2022 Avnet Embedded GmbH
> + */
> +
> +/dts-v1/;
> +
> +#include "imx8mp-msc-sm2s-14N0600E.dts"
> +#include <dt-bindings/clock/imx8mp-clock.h>
> +#include <dt-bindings/gpio/gpio.h>
> +
> +/ {
> + model = "MSC SM2-MB-EP1 Carrier Board with SM2S-IMX8PLUS-QC6-14N0600E SoM";
Missing compatibles and bindings.
> +};
> +
> +&flexcan1 {
> + status = "okay";
> +};
> +
> +&flexcan2 {
> + status = "okay";
> +};
> +
> +&usdhc2 {
> + no-1-8-v;
> +};
> +
> +&iomuxc {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_smarc_gpio>;
> +
> + pinctrl_smarc_gpio: smarcgpiosgrp {
> + fsl,pins = <
> + /* GPIO0 */
> + MX8MP_IOMUXC_GPIO1_IO11__GPIO1_IO11 0x19
> + /* GPIO1 */
> + MX8MP_IOMUXC_SAI1_RXC__GPIO4_IO01 0x19
> + /* GPIO2 */
> + MX8MP_IOMUXC_SAI1_RXD0__GPIO4_IO02 0x19
> + /* GPIO3 */
> + MX8MP_IOMUXC_SAI1_RXD1__GPIO4_IO03 0x19
> + /* GPIO4 */
> + MX8MP_IOMUXC_SAI3_RXC__GPIO4_IO29 0x19
> + /* GPIO5 */
> + MX8MP_IOMUXC_SAI3_MCLK__GPIO5_IO02 0x19
> + /* GPIO6 */
> + MX8MP_IOMUXC_SAI1_TXD6__GPIO4_IO18 0x19
> + /* GPIO7 */
> + MX8MP_IOMUXC_GPIO1_IO10__GPIO1_IO10 0x19
> + /* GPIO8 */
> + MX8MP_IOMUXC_SAI1_MCLK__GPIO4_IO20 0x19
> + /* GPIO9 */
> + MX8MP_IOMUXC_SAI2_RXFS__GPIO4_IO21 0x19
> + /* GPIO10 */
> + MX8MP_IOMUXC_SAI2_RXC__GPIO4_IO22 0x19
> + /* GPIO11 */
> + MX8MP_IOMUXC_SAI3_RXFS__GPIO4_IO28 0x19
> + /* GPIO12 */
> + MX8MP_IOMUXC_SAI1_TXD7__GPIO4_IO19 0x19
> + /* GPIO13 */
> + MX8MP_IOMUXC_SAI1_RXFS__GPIO4_IO00 0x19
> + >;
> + };
> +};
> +
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp-msc-sm2s.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-msc-sm2s.dtsi
> new file mode 100644
> index 000000000000..7d958cfb4d55
> --- /dev/null
> +++ b/arch/arm64/boot/dts/freescale/imx8mp-msc-sm2s.dtsi
> @@ -0,0 +1,869 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (C) 2022 Avnet Embedded GmbH
> + */
> +
> +/dts-v1/;
> +
> +#include "imx8mp.dtsi"
> +#include <dt-bindings/net/ti-dp83867.h>
> +
> +/ {
> + model = "MSC SM2S-IMX8MPLUS";
Ditto
> +
> + aliases {
> + rtc0 = &sys_rtc;
> + rtc1 = &snvs_rtc;
> + };
> +
> + chosen {
> + stdout-path = &uart2;
> + };
> +
> + reg_usb0_host_vbus: regulator-usb0-vbus {
> + compatible = "regulator-fixed";
> + regulator-name = "usb0_host_vbus";
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_usb0_vbus>;
> + regulator-min-microvolt = <5000000>;
> + regulator-max-microvolt = <5000000>;
> + gpio = <&gpio1 12 GPIO_ACTIVE_HIGH>;
> + enable-active-high;
> + };
> +
> + reg_usb1_host_vbus: regulator-usb1-vbus {
> + compatible = "regulator-fixed";
> + regulator-name = "usb1_host_vbus";
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_usb1_vbus>;
> + regulator-min-microvolt = <5000000>;
> + regulator-max-microvolt = <5000000>;
> + gpio = <&gpio1 14 GPIO_ACTIVE_HIGH>;
> + enable-active-high;
> + };
> +
> + reg_usdhc2_vmmc: regulator-usdhc2 {
> + compatible = "regulator-fixed";
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_usdhc2_vmmc>;
> + 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 = <12000>;
> + };
> +
> + reg_flexcan1_xceiver: regulator-flexcan1-xceiver {
> + compatible = "regulator-fixed";
> + regulator-name = "flexcan1-xceiver";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + enable-active-high;
> + };
> +
> + reg_flexcan2_xceiver: regulator-flexcan2-xceiver {
> + compatible = "regulator-fixed";
> + regulator-name = "flexcan2-xceiver";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + enable-active-high;
> + };
> +
> + lcd0_backlight: lcd0_backlight {
No underscores in node names. Generic node names so backlight-0.
> + compatible = "pwm-backlight";
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_lcd0_backlight>;
> + pwms = <&pwm1 0 100000 0>;
> + brightness-levels = <0 255>;
> + num-interpolated-steps = <255>;
> + default-brightness-level = <255>;
> + enable-gpios = <&gpio1 5 GPIO_ACTIVE_HIGH>;
> + status = "disabled";
> + };
> +
> + lcd1_backlight: lcd1_backlight {
> + compatible = "pwm-backlight";
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_lcd1_backlight>;
> + pwms = <&pwm2 0 100000 0>;
> + brightness-levels = <0 255>;
> + num-interpolated-steps = <255>;
> + default-brightness-level = <255>;
> + enable-gpios = <&gpio1 6 GPIO_ACTIVE_HIGH>;
> + status = "disabled";
> + };
> +
> + leds {
> + compatible = "gpio-leds";
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_leds>;
> + status = "okay";
> +
> + sw-led {
> + label = "sw-led";
> + gpios = <&gpio1 8 GPIO_ACTIVE_HIGH>;
> + default-state = "off";
> + linux,default-trigger = "heartbeat";
> + };
> + };
> +
> + extcon_usb0: extcon_usb0 {
No underscores, extcon is Linux term, so use node name describing device.
> + compatible = "linux,extcon-usb-gpio";
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_usb0_extcon>;
> + id-gpio = <&gpio1 3 GPIO_ACTIVE_HIGH>;
> + };
> +};
> +
> +&A53_0 {
> + cpu-supply = <&vcc_arm>;
> +};
> +
> +&A53_1 {
> + cpu-supply = <&vcc_arm>;
> +};
> +
> +&A53_2 {
> + cpu-supply = <&vcc_arm>;
> +};
> +
> +&A53_3 {
> + cpu-supply = <&vcc_arm>;
> +};
> +
> +&dsp {
> + status = "okay";
> +};
> +
> +&ecspi1 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_ecspi1>;
> + cs-gpios = <0>, <&gpio2 8 GPIO_ACTIVE_LOW>;
> +};
> +
> +&ecspi2 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_ecspi2>;
> + cs-gpios = <0>, <&gpio2 9 GPIO_ACTIVE_LOW>;
> +};
> +
> +&eqos {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_eqos>;
> + phy-mode = "rgmii-id";
> + phy-handle = <ðphy0>;
> + phy-reset-gpios = <&tca6424 16 GPIO_ACTIVE_LOW>;
> + phy-reset-duration = <1>;
> + phy-reset-post-delay = <1>;
> + status = "okay";
> +
> + mdio {
> + compatible = "snps,dwmac-mdio";
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + ethphy0: ethernet-phy@1 {
> + compatible = "ethernet-phy-ieee802.3-c22";
> + reg = <1>;
> + eee-broken-1000t;
> + phy-reset-gpios = <&tca6424 16 GPIO_ACTIVE_LOW>;
> +
> + ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_25_NS>;
> + ti,tx-internal-delay = <DP83867_RGMIIDCTL_2_25_NS>;
> + ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;
> + ti,clk-output-sel = <DP83867_CLK_O_SEL_OFF>;
> + };
> + };
> +};
> +
> +&fec {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_fec>;
> + phy-mode = "rgmii-id";
> + phy-handle = <ðphy1>;
> + phy-reset-gpios = <&tca6424 17 GPIO_ACTIVE_LOW>;
> + phy-reset-duration = <1>;
> + phy-reset-post-delay = <1>;
> + fsl,magic-packet;
> + status = "okay";
> +
> + mdio {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + ethphy1: ethernet-phy@1 {
> + compatible = "ethernet-phy-ieee802.3-c22";
> + reg = <1>;
> + eee-broken-1000t;
> + phy-reset-gpios = <&tca6424 17 GPIO_ACTIVE_LOW>;
> +
> + ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_25_NS>;
> + ti,tx-internal-delay = <DP83867_RGMIIDCTL_2_25_NS>;
> + ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;
> + ti,clk-output-sel = <DP83867_CLK_O_SEL_OFF>;
> + };
> + };
> +};
> +
> +&i2c1 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_i2c1>;
> + clock-frequency = <400000>;
> + status = "okay";
> +
> + id_eeprom: eeprom@50 {
> + compatible = "atmel,24c64";
> + reg = <0x50>;
> + pagesize = <32>;
> + };
> +};
> +
> +&i2c2 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_i2c2>;
> + clock-frequency = <400000>;
> + status = "disabled";
> +};
> +
> +&i2c3 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_i2c3>;
> + clock-frequency = <400000>;
> + status = "disabled";
> +};
> +
> +&i2c4 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_i2c4>;
> + clock-frequency = <400000>;
> + status = "disabled";
> +};
> +
> +&i2c5 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_i2c5>;
> + clock-frequency = <400000>;
> + status = "disabled";
> +};
> +
> +&i2c6 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_i2c6>;
> + clock-frequency = <400000>;
> + status = "okay";
> +
> + tca6424: gpio@22 {
> + compatible = "ti,tca6424";
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_tca6424>;
> + reg = <0x22>;
compatible, then reg, then all other properties. This applies everywhere.
> + gpio-controller;
> + #gpio-cells = <2>;
> + gpio-line-names = "BOOT_SEL0#", "BOOT_SEL1#", "BOOT_SEL2#",
> + "gbe0_int", "gbe1_int", "pmic_int", "rtc_int", "lvds_int",
> + "PCIE_WAKE#", "cam2_rst", "cam2_pwr", "SLEEP#",
> + "wifi_pd", "tpm_int", "wifi_int", "PCIE_A_RST#",
> + "gbe0_rst", "gbe1_rst", "LID#", "BATLOW#", "CHARGING#",
> + "CHARGER_PRSNT#";
> + interrupt-parent = <&gpio1>;
> + interrupts = <9 IRQ_TYPE_EDGE_RISING>;
> + interrupt-controller;
> + #interrupt-cells = <2>;
> + };
> +
> + dsi_lvds_bridge: sn65dsi84@2d {
Node names should be generic.
https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation
> + compatible = "ti,sn65dsi83";
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_lvds_bridge>;
> + reg = <0x2d>;
> + enable-gpios = <&gpio1 7 GPIO_ACTIVE_HIGH>;
> + status = "disabled";
> + };
> +
> + pmic: pmic@30 {
> + compatible = "ricoh,rn5t567";
> + interrupt-parent = <&tca6424>;
> + interrupts = <5 IRQ_TYPE_EDGE_FALLING>;
> + reg = <0x30>;
compatible, reg then the rest.
> +
> + regulators {
> + DCDC1 {
> + regulator-name = "VCC_SOC";
> + regulator-always-on;
> + regulator-min-microvolt = <950000>;
> + regulator-max-microvolt = <950000>;
> + };
> + DCDC2 {
> + regulator-name = "VCC_DRAM";
> + regulator-always-on;
> + regulator-min-microvolt = <1100000>;
> + regulator-max-microvolt = <1100000>;
> + };
> + vcc_arm: DCDC3 {
> + regulator-name = "VCC_ARM";
> + regulator-always-on;
> + regulator-min-microvolt = <950000>;
> + regulator-max-microvolt = <950000>;
> + };
> + DCDC4 {
> + regulator-name = "VCC_1V8";
> + regulator-always-on;
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + };
> + LDO1 {
> + regulator-name = "VCC_LDO1_2V5";
> + regulator-always-on;
> + regulator-min-microvolt = <2500000>;
> + regulator-max-microvolt = <2500000>;
> + };
> + LDO2 {
> + regulator-name = "VCC_LDO2_1V8";
> + regulator-always-on;
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + };
> + LDO3 {
> + regulator-name = "VCC_ETH_2V5";
> + regulator-always-on;
> + regulator-min-microvolt = <2500000>;
> + regulator-max-microvolt = <2500000>;
> + };
> + LDO4 {
> + regulator-name = "VCC_DDR4_2V5";
> + regulator-always-on;
> + regulator-min-microvolt = <2500000>;
> + regulator-max-microvolt = <2500000>;
> + };
> + LDO5 {
> + regulator-name = "VCC_LDO5_1V8";
> + regulator-always-on;
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + };
> + LDORTC1 {
> + regulator-name = "VCC_SNVS_1V8";
> + regulator-always-on;
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + };
> + LDORTC2 {
> + regulator-name = "VCC_SNVS_3V3";
> + regulator-always-on;
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + };
> + };
> + };
> +
> + sys_rtc: rtc@32 {
> + compatible = "ricoh,r2221tl";
> + reg = <0x32>;
> + interrupt-parent = <&tca6424>;
> + interrupts = <6 IRQ_TYPE_EDGE_FALLING>;
> + };
> +
> + tmp_sensor: tmp103@71 {
Node names should be generic.
https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation
> + compatible = "ti,tmp103";
> + reg = <0x71>;
> + label = "BOARD_TEMP";
> + };
> +};
> +
> +&flexcan1 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_flexcan1>;
> + xceiver-supply = <®_flexcan1_xceiver>;
> + status = "disabled";
> +};
> +
> +&flexcan2 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_flexcan2>;
> + xceiver-supply = <®_flexcan2_xceiver>;
> + status = "disabled";
> +};
> +
> +&flexspi {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_flexspi0>;
> + status = "okay";
> +
> + qspi_flash: qspi_flash@0 {
You didn't test the bindings (dtbs_check), did you? There is no way this
passess...
> + reg = <0>;
> + #address-cells = <1>;
> + #size-cells = <1>;
> + compatible = "jedec,spi-nor";
Eh? Now compatible in the middle? Sorry, this are trivial code quality
comments. Please use internal review or base your work on some
upstreamed existing board.
Best regards,
Krzysztof
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