// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause /* * Copyright (C) 2020 Marek Vasut <marex@denx.de> */ #include <dt-bindings/input/input.h> #include <dt-bindings/pwm/pwm.h> / { aliases { serial0 = &uart4; serial1 = &usart3; serial2 = &uart8; }; chosen { stdout-path = "serial0:115200n8"; }; }; &adc { status = "disabled"; }; &dac { status = "disabled"; }; &gpiob { /* * NOTE: On DRC02, the RS485_RX_En is controlled by a separate * GPIO line, however the STM32 UART driver assumes RX happens * during TX anyway and that it only controls drive enable DE * line. Hence, the RX is always enabled here. */ rs485-rx-en-hog { gpio-hog; gpios = <8 0>; output-low; line-name = "rs485-rx-en"; }; }; &gpiod { gpio-line-names = "", "", "", "", "", "", "DHCOM-B", "", "", "", "", "DRC02-Out1", "DRC02-Out2", "", "", ""; }; &gpioi { gpio-line-names = "DRC02-In1", "DHCOM-O", "DHCOM-H", "DHCOM-I", "DHCOM-R", "DHCOM-M", "", "", "DRC02-In2", "", "", "", "", "", "", ""; /* * NOTE: The USB Hub on the DRC02 needs a reset signal to be * pulled high in order to be detected by the USB Controller. * This signal should be handled by USB power sequencing in * order to reset the Hub when USB bus is powered down, but * so far there is no such functionality. */ usb-hub-hog { gpio-hog; gpios = <2 0>; output-high; line-name = "usb-hub-reset"; }; }; &i2c2 { pinctrl-names = "default"; pinctrl-0 = <&i2c2_pins_a>; i2c-scl-rising-time-ns = <185>; i2c-scl-falling-time-ns = <20>; status = "okay"; /* spare dmas for other usage */ /delete-property/dmas; /delete-property/dma-names; status = "okay"; eeprom@50 { compatible = "atmel,24c04"; reg = <0x50>; pagesize = <16>; }; }; &i2c4 { touchscreen@49 { status = "disabled"; }; }; &i2c5 { /* TP7/TP8 */ pinctrl-names = "default"; pinctrl-0 = <&i2c5_pins_a>; i2c-scl-rising-time-ns = <185>; i2c-scl-falling-time-ns = <20>; status = "okay"; /* spare dmas for other usage */ /delete-property/dmas; /delete-property/dma-names; }; &sdmmc3 { /* * On DRC02, the SoM does not have SDIO WiFi. The pins * are used for on-board microSD slot instead. */ /delete-property/broken-cd; cd-gpios = <&gpioi 10 GPIO_ACTIVE_HIGH>; disable-wp; }; &spi1 { pinctrl-names = "default"; pinctrl-0 = <&spi1_pins_a>; cs-gpios = <&gpioz 3 0>; /* Use PIO for the display */ /delete-property/dmas; /delete-property/dma-names; status = "disabled"; /* Enable once there is display driver */ /* * Note: PF3/GPIO_A , PD6/GPIO_B , PG0/GPIO_C , PC6/GPIO_E are * also connected to the display board connector. */ }; &usart3 { pinctrl-names = "default"; pinctrl-0 = <&usart3_pins_a>; /delete-property/dmas; /delete-property/dma-names; status = "okay"; }; /* * Note: PI3 is UART1_RTS and PI5 is UART1_CTS on DRC02 (uart4 of STM32MP1), * however the STM32MP1 pinmux cannot map them to UART4 . */ &uart8 { /* RS485 */ linux,rs485-enabled-at-boot-time; pinctrl-names = "default"; pinctrl-0 = <&uart8_pins_a>; rts-gpios = <&gpioe 6 GPIO_ACTIVE_HIGH>; /delete-property/dmas; /delete-property/dma-names; status = "okay"; }; &usbh_ehci { phys = <&usbphyc_port0>; status = "okay"; }; &usbphyc { status = "okay"; }; &usbphyc_port0 { phy-supply = <&vdd_usb>; }; &usbphyc_port1 { phy-supply = <&vdd_usb>; };