mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-15 01:17:39 +00:00
0b263a905a
Add DT for DH DRC02 unit, which is a universal controller device. The system has two ethernet ports, two CANs, RS485 and RS232, USB, capacitive buttons and an OLED display. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Patrice Chotard <patrice.chotard@st.com> Cc: Patrick Delaunay <patrick.delaunay@st.com> Reviewed-by: Patrice Chotard <patrice.chotard@st.com> Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com>
158 lines
3.2 KiB
Text
158 lines
3.2 KiB
Text
// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
|
|
/*
|
|
* Copyright (C) 2020 Marek Vasut <marex@denx.de>
|
|
*/
|
|
|
|
#include "stm32mp15xx-dhcom.dtsi"
|
|
|
|
/ {
|
|
model = "DH Electronics STM32MP15xx DHCOM DRC02";
|
|
compatible = "dh,stm32mp15xx-dhcom-drc02", "st,stm32mp1xx";
|
|
|
|
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.
|
|
*/
|
|
usb-hub {
|
|
gpio-hog;
|
|
gpios = <8 GPIO_ACTIVE_HIGH>;
|
|
output-high;
|
|
line-name = "rs485-rx-en";
|
|
};
|
|
};
|
|
|
|
&gpiod {
|
|
gpio-line-names = "", "", "", "",
|
|
"", "", "", "",
|
|
"", "", "", "Out1",
|
|
"Out2", "", "", "";
|
|
};
|
|
|
|
&gpioi {
|
|
gpio-line-names = "In1", "", "", "",
|
|
"", "", "", "",
|
|
"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 {
|
|
gpio-hog;
|
|
gpios = <2 GPIO_ACTIVE_HIGH>;
|
|
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>;
|
|
};
|
|
};
|
|
|
|
&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_LOW | GPIO_PULL_UP)>;
|
|
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>;
|
|
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 */
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&uart8_pins_a>;
|
|
rts-gpios = <&gpioe 6 GPIO_ACTIVE_HIGH>;
|
|
status = "okay";
|
|
};
|
|
|
|
&usbh_ehci {
|
|
phys = <&usbphyc_port0>;
|
|
status = "okay";
|
|
};
|
|
|
|
&usbphyc {
|
|
status = "okay";
|
|
};
|
|
|
|
&usbphyc_port0 {
|
|
phy-supply = <&vdd_usb>;
|
|
vdda1v1-supply = <®11>;
|
|
vdda1v8-supply = <®18>;
|
|
};
|