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Fri, 20 Jun 2025 01:06:36 -0700 (PDT) Received: from dario-ThinkPad-T14s-Gen-2i.amarulasolutions.com ([2.196.43.224]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4535ebd02basm50137905e9.39.2025.06.20.01.06.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 20 Jun 2025 01:06:35 -0700 (PDT) From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: michael@amarulasolutions.com, linux-amarula@amarulasolutions.com, Frank Li , Dario Binacchi , Conor Dooley , Fabio Estevam , Krzysztof Kozlowski , Pengutronix Kernel Team , Rob Herring , Sascha Hauer , Shawn Guo , devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org Subject: [PATCH v6 3/5] ARM: dts: mxs: support i.MX28 Amarula rmm board Date: Fri, 20 Jun 2025 10:06:19 +0200 Message-ID: <20250620080626.3580397-4-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250620080626.3580397-1-dario.binacchi@amarulasolutions.com> References: <20250620080626.3580397-1-dario.binacchi@amarulasolutions.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The board includes the following resources: - 256 Mbytes NAND Flash - 128 Mbytes DRAM DDR2 - CAN - USB 2.0 high-speed/full-speed - Ethernet MAC Signed-off-by: Dario Binacchi Reviewed-by: Frank Li --- Changes in v6: - Add Reviewed-by tag of Frank Li Changes in v5: - Drop #address-cells from gpmi node Changes in v4: - Drop label property (deprecated) under the leds sub-nodes. - Add microSD comment above the ssp0 node. Changes in v3: - Drop xceiver-supply property from can0 node. - Rearrange the order of specific nodes and properties alphabetically. Changes in v2: - Replace '-' with '@' for the pinctrl sub-nodes. - Replace edt,edt-ft5x06 with edt,edt-ft5306. - Drop LCD reset hog pin. - Add correct #address-cells and #size-cells to gpmi node. - Replace edt-ft5x06@38 with touchscreen@38. arch/arm/boot/dts/nxp/mxs/Makefile | 1 + .../boot/dts/nxp/mxs/imx28-amarula-rmm.dts | 300 ++++++++++++++++++ 2 files changed, 301 insertions(+) create mode 100644 arch/arm/boot/dts/nxp/mxs/imx28-amarula-rmm.dts diff --git a/arch/arm/boot/dts/nxp/mxs/Makefile b/arch/arm/boot/dts/nxp/mxs= /Makefile index 96dd31ea19ba..d72ba702b6fa 100644 --- a/arch/arm/boot/dts/nxp/mxs/Makefile +++ b/arch/arm/boot/dts/nxp/mxs/Makefile @@ -5,6 +5,7 @@ dtb-$(CONFIG_ARCH_MXS) +=3D \ imx23-sansa.dtb \ imx23-stmp378x_devb.dtb \ imx23-xfi3.dtb \ + imx28-amarula-rmm.dtb \ imx28-apf28.dtb \ imx28-apf28dev.dtb \ imx28-apx4devkit.dtb \ diff --git a/arch/arm/boot/dts/nxp/mxs/imx28-amarula-rmm.dts b/arch/arm/boo= t/dts/nxp/mxs/imx28-amarula-rmm.dts new file mode 100644 index 000000000000..af59211842fb --- /dev/null +++ b/arch/arm/boot/dts/nxp/mxs/imx28-amarula-rmm.dts @@ -0,0 +1,300 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2025 Amarula Solutions, Dario Binacchi + */ + +/dts-v1/; + +#include "imx28.dtsi" +#include +#include + +/ { + compatible =3D "amarula,imx28-rmm", "fsl,imx28"; + model =3D "Amarula i.MX28 rmm"; + + memory@40000000 { + reg =3D <0x40000000 0x08000000>; + device_type =3D "memory"; + }; + + backlight { + compatible =3D "pwm-backlight"; + pwms =3D <&pwm 4 5000000 0>; + brightness-levels =3D <0 255>; + num-interpolated-steps =3D <255>; + default-brightness-level =3D <255>; + power-supply =3D <®_5v>; + }; + + beeper { + compatible =3D "pwm-beeper"; + pwms =3D <&pwm 7 100000 0>; + }; + + leds { + compatible =3D "gpio-leds"; + pinctrl-names =3D "default"; + pinctrl-0 =3D <&leds_pins>; + + led-0 { + gpios =3D <&gpio2 7 GPIO_ACTIVE_HIGH>; + default-state =3D "off"; + }; + + led-1 { + gpios =3D <&gpio3 16 GPIO_ACTIVE_HIGH>; + default-state =3D "off"; + }; + + led-2 { + gpios =3D <&gpio3 17 GPIO_ACTIVE_HIGH>; + default-state =3D "off"; + }; + }; + + reg_1v8: regulator-1v8 { + compatible =3D "regulator-fixed"; + regulator-name =3D "1v8"; + regulator-min-microvolt =3D <1800000>; + regulator-max-microvolt =3D <1800000>; + }; + + reg_3v3: regulator-3v3 { + compatible =3D "regulator-fixed"; + regulator-name =3D "3v3"; + regulator-min-microvolt =3D <3300000>; + regulator-max-microvolt =3D <3300000>; + regulator-always-on; + }; + + reg_5v: regulator-5v { + compatible =3D "regulator-fixed"; + regulator-name =3D "5v"; + regulator-min-microvolt =3D <5000000>; + regulator-max-microvolt =3D <5000000>; + regulator-always-on; + }; + + reg_fec_3v3: regulator-fec-3v3 { + compatible =3D "regulator-fixed"; + pinctrl-names =3D "default"; + pinctrl-0 =3D <&fec_3v3_enable_pin>; + regulator-name =3D "fec-3v3"; + regulator-min-microvolt =3D <3300000>; + regulator-max-microvolt =3D <3300000>; + gpios =3D <&gpio3 27 GPIO_ACTIVE_HIGH>; + enable-active-high; + startup-delay-us =3D <300000>; + vin-supply =3D <®_5v>; + }; + + reg_usb0_vbus: regulator-usb0-vbus { + compatible =3D "regulator-fixed"; + pinctrl-names =3D "default"; + pinctrl-0 =3D <&usb0_vbus_enable_pin>; + regulator-name =3D "usb0_vbus"; + regulator-min-microvolt =3D <5000000>; + regulator-max-microvolt =3D <5000000>; + gpio =3D <&gpio2 5 GPIO_ACTIVE_HIGH>; + enable-active-high; + regulator-always-on; + }; + + reg_usb1_vbus: regulator-usb1-vbus { + compatible =3D "regulator-fixed"; + pinctrl-names =3D "default"; + pinctrl-0 =3D <&usb1_vbus_enable_pin>; + regulator-name =3D "usb1_vbus"; + regulator-min-microvolt =3D <5000000>; + regulator-max-microvolt =3D <5000000>; + gpio =3D <&gpio2 6 GPIO_ACTIVE_HIGH>; + enable-active-high; + regulator-always-on; + }; +}; + +&auart0 { + pinctrl-names =3D "default"; + pinctrl-0 =3D <&auart0_2pins_a>; + status =3D "okay"; +}; + +&auart1 { + pinctrl-names =3D "default"; + pinctrl-0 =3D <&auart1_pins_a>; + status =3D "okay"; +}; + +&can0 { + pinctrl-names =3D "default"; + pinctrl-0 =3D <&can0_pins_a>; + status =3D "okay"; +}; + +&duart { + pinctrl-names =3D "default"; + pinctrl-0 =3D <&duart_pins_b>; + status =3D "okay"; +}; + +&duart_pins_b { + fsl,voltage =3D ; +}; + +&gpmi { + #size-cells =3D <0>; + pinctrl-names =3D "default"; + pinctrl-0 =3D <&gpmi_pins_a &gpmi_status_cfg>; + status =3D "okay"; +}; + +&i2c0 { + pinctrl-names =3D "default"; + pinctrl-0 =3D <&i2c0_pins_a>; + status =3D "okay"; + + touchscreen: touchscreen@38 { + compatible =3D "edt,edt-ft5306"; + reg =3D <0x38>; + pinctrl-names =3D "default"; + pinctrl-0 =3D <&edt_ft5x06_pins &edt_ft5x06_wake_pin>; + interrupt-parent =3D <&gpio0>; + interrupts =3D <19 IRQ_TYPE_EDGE_RISING>; + reset-gpios =3D <&gpio0 21 GPIO_ACTIVE_LOW>; + wake-gpios =3D <&gpio0 18 GPIO_ACTIVE_HIGH>; + }; +}; + +&lradc { + status =3D "okay"; +}; + +&mac0 { + pinctrl-names =3D "default"; + pinctrl-0 =3D <&mac0_pins_a>; + phy-mode =3D "rmii"; + phy-supply =3D <®_fec_3v3>; + phy-handle =3D <ðphy>; + status =3D "okay"; + + mdio { + #address-cells =3D <1>; + #size-cells =3D <0>; + + ethphy: ethernet-phy@0 { + compatible =3D "ethernet-phy-ieee802.3-c22"; + reg =3D <0>; + max-speed =3D <100>; + reset-gpios =3D <&gpio3 28 GPIO_ACTIVE_LOW>; + reset-assert-us =3D <4000>; + reset-deassert-us =3D <4000>; + }; + }; +}; + +&pinctrl { + pinctrl-names =3D "default"; + pinctrl-0 =3D <&hog_pins_a>; + + edt_ft5x06_pins: edt-ft5x06@0 { + reg =3D <0>; + fsl,pinmux-ids =3D < + MX28_PAD_GPMI_RDY1__GPIO_0_21 /* Reset */ + MX28_PAD_GPMI_CE3N__GPIO_0_19 /* Interrupt */ + >; + fsl,drive-strength =3D ; + fsl,pull-up =3D ; + fsl,voltage =3D ; + }; + + edt_ft5x06_wake_pin: edt-ft5x06-wake@0 { + reg =3D <0>; + fsl,pinmux-ids =3D ; + fsl,drive-strength =3D ; + fsl,pull-up =3D ; + fsl,voltage =3D ; + }; + + fec_3v3_enable_pin: fec-3v3-enable@0 { + reg =3D <0>; + fsl,pinmux-ids =3D ; + fsl,drive-strength =3D ; + fsl,pull-up =3D ; + fsl,voltage =3D ; + }; + + hog_pins_a: hog@0 { + reg =3D <0>; + fsl,pinmux-ids =3D < + MX28_PAD_SSP2_SS1__GPIO_2_20 /* External power */ + >; + fsl,drive-strength =3D ; + fsl,pull-up =3D ; + fsl,voltage =3D ; + }; + + leds_pins: leds@0 { + reg =3D <0>; + fsl,pinmux-ids =3D < + MX28_PAD_SSP0_DATA7__GPIO_2_7 + MX28_PAD_PWM0__GPIO_3_16 + MX28_PAD_PWM1__GPIO_3_17 + >; + fsl,drive-strength =3D ; + fsl,pull-up =3D ; + fsl,voltage =3D ; + }; + + usb0_vbus_enable_pin: usb0-vbus-enable@0 { + reg =3D <0>; + fsl,pinmux-ids =3D ; + fsl,drive-strength =3D ; + fsl,pull-up =3D ; + fsl,voltage =3D ; + }; + + usb1_vbus_enable_pin: usb1-vbus-enable@0 { + reg =3D <0>; + fsl,pinmux-ids =3D ; + fsl,drive-strength =3D ; + fsl,pull-up =3D ; + fsl,voltage =3D ; + }; +}; + +&pwm { + pinctrl-names =3D "default"; + pinctrl-0 =3D <&pwm4_pins_a &pwm7_pins_a>; + status =3D "okay"; +}; + +/* microSD */ +&ssp0 { + compatible =3D "fsl,imx28-mmc"; + pinctrl-names =3D "default"; + pinctrl-0 =3D <&mmc0_4bit_pins_a &mmc0_sck_cfg>; + broken-cd; + bus-width =3D <4>; + status =3D "okay"; +}; + +&usb0 { + dr_mode =3D "host"; + vbus-supply =3D <®_usb0_vbus>; + status =3D "okay"; +}; + +&usb1 { + dr_mode =3D "host"; + vbus-supply =3D <®_usb1_vbus>; + status =3D "okay"; +}; + +&usbphy0 { + status =3D "okay"; +}; + +&usbphy1 { + status =3D "okay"; +}; --=20 2.43.0