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arm64: dts: ti: am64-phyboard-electra: Add DT overlay for X27 connector

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Add a device tree overlay for SPI1 , UART3 and GPIO1 on
X27 connector.

By default, not all interfaces on the X27 connector are accessible
due to being disabled or set to alternative pin mux configurations.
This overlay activates and configures these interfaces to support
connections with external devices.

Signed-off-by: Wadim Egorov <w.egorov@phytec.de>
Signed-off-by: Daniel Schultz <d.schultz@phytec.de>
Link: https://lore.kernel.org/r/20250128100356.462934-1-d.schultz@phytec.de
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
This commit is contained in:
Daniel Schultz 2025-01-28 02:03:56 -08:00 committed by Vignesh Raghavendra
parent 38e7f9092e
commit 638ab30ce4
2 changed files with 66 additions and 0 deletions
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3
arch/arm64/boot/dts/ti/Makefile
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@ -54,6 +54,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-am642-evm-nand.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am642-phyboard-electra-rdk.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am642-phyboard-electra-gpio-fan.dtbo
dtb-$(CONFIG_ARCH_K3) += k3-am642-phyboard-electra-pcie-usb2.dtbo
dtb-$(CONFIG_ARCH_K3) += k3-am642-phyboard-electra-x27-gpio1-spi1-uart3.dtbo
dtb-$(CONFIG_ARCH_K3) += k3-am642-sk.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am642-tqma64xxl-mbax4xxl.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am64-tqma64xxl-mbax4xxl-sdcard.dtbo
@ -185,6 +186,8 @@ k3-am642-phyboard-electra-gpio-fan-dtbs := \
k3-am642-phyboard-electra-rdk.dtb k3-am642-phyboard-electra-gpio-fan.dtbo
k3-am642-phyboard-electra-pcie-usb2-dtbs := \
k3-am642-phyboard-electra-rdk.dtb k3-am642-phyboard-electra-pcie-usb2.dtbo
k3-am642-phyboard-electra-x27-gpio1-spi1-uart3-dtbs := \
k3-am642-phyboard-electra-rdk.dtb k3-am642-phyboard-electra-x27-gpio1-spi1-uart3.dtbo
k3-am642-tqma64xxl-mbax4xxl-sdcard-dtbs := \
k3-am642-tqma64xxl-mbax4xxl.dtb k3-am64-tqma64xxl-mbax4xxl-sdcard.dtbo
k3-am642-tqma64xxl-mbax4xxl-wlan-dtbs := \

63
arch/arm64/boot/dts/ti/k3-am642-phyboard-electra-x27-gpio1-spi1-uart3.dtso Normal file
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@ -0,0 +1,63 @@
// SPDX-License-Identifier: GPL-2.0-only OR MIT
/*
* Copyright (C) 2025 PHYTEC Messtechnik GmbH
* Authors:
* Wadim Egorov <w.egorov@phytec.de>
* Daniel Schultz <d.schultz@phytec.de>
*
* GPIO, SPI and UART examples for the X27 expansion connector.
*/
/dts-v1/;
/plugin/;
#include "k3-pinctrl.h"
&{/} {
aliases {
serial5 = "/bus@f4000/serial@2830000";
};
};
&main_pmx0 {
main_gpio1_exp_header_gpio_pins_default: main-gpio1-exp-header-gpio-pins-default {
pinctrl-single,pins = <
AM64X_IOPAD(0x0220, PIN_INPUT, 7) /* (D14) SPI1_CS1.GPIO1_48 */
>;
};
main_spi1_pins_default: main-spi1-pins-default {
pinctrl-single,pins = <
AM64X_IOPAD(0x0224, PIN_INPUT, 0) /* (C14) SPI1_CLK */
AM64X_IOPAD(0x021C, PIN_OUTPUT, 0) /* (B14) SPI1_CS0 */
AM64X_IOPAD(0x0228, PIN_OUTPUT, 0) /* (B15) SPI1_D0 */
AM64X_IOPAD(0x022C, PIN_INPUT, 0) /* (A15) SPI1_D1 */
>;
};
main_uart3_pins_default: main-uart3-pins-default {
pinctrl-single,pins = <
AM64X_IOPAD(0x0048, PIN_INPUT, 2) /* (U20) GPMC0_AD3.UART3_RXD */
AM64X_IOPAD(0x004c, PIN_OUTPUT, 2) /* (U18) GPMC0_AD4.UART3_TXD */
>;
};
};
&main_gpio1 {
pinctrl-names = "default";
pinctrl-0 = <&main_gpio1_exp_header_gpio_pins_default>;
status = "okay";
};
&main_spi1 {
pinctrl-names = "default";
pinctrl-0 = <&main_spi1_pins_default>;
ti,pindir-d0-out-d1-in = <1>;
status = "okay";
};
&main_uart3 {
pinctrl-names = "default";
pinctrl-0 = <&main_uart3_pins_default>;
status = "okay";
};