github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-09-25 17:42:03 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

arm64: dts: freescale: imx8mm-verdin: Add Cortex-M4F UART_4 overlay

Browse Source 
Verdin UART_4 can be assigned to Cortex-M4F firmware. Add an overlay
that marks the UART as reserved so Linux does not claim the port.

The overlay is also combined with the Verdin iMX8M Mini Development
Board device tree to provide a ready-to-use DTB for the WiFi SoM
variant.

Signed-off-by: Ernest Van Hoecke <ernest.vanhoecke@toradex.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
This commit is contained in:
Ernest Van Hoecke 2026-07-24 18:24:33 +02:00 committed by Frank Li
parent d4fc54ac18
commit 0c4a972d86
2 changed files with 17 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
arch/arm64/boot/dts/freescale/Makefile
View File

@ -192,6 +192,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-nonwifi-yavia.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-nonwifi-zinnia.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-panel-cap-touch-10inch-dsi.dtbo
dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-panel-cap-touch-7inch-dsi.dtbo
dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-uart4-mcu.dtbo
dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-wifi-dahlia-dsi-to-hdmi.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-wifi-dahlia-panel-cap-touch-10inch-dsi.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-wifi-dahlia.dtb
@ -199,6 +200,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-wifi-dev-dsi-to-hdmi.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-wifi-dev-dsi-to-lvds-panel-cap-touch-10inch.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-wifi-dev-nau8822-btl.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-wifi-dev-panel-cap-touch-7inch-dsi.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-wifi-dev-uart4-mcu.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-wifi-dev.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-wifi-ivy.dtb
dtb-$(CONFIG_ARCH_MXC) += imx8mm-verdin-wifi-mallow.dtb
@ -220,6 +222,7 @@ imx8mm-verdin-wifi-dev-dsi-to-lvds-panel-cap-touch-10inch-dtbs := imx8mm-verdin-
imx8mm-verdin-wifi-dev-nau8822-btl-dtbs := imx8mm-verdin-wifi-dev.dtb imx8mm-verdin-dev-nau8822-btl.dtbo
imx8mm-verdin-wifi-dev-panel-cap-touch-7inch-dsi-dtbs := imx8mm-verdin-wifi-dev.dtb \
imx8mm-verdin-panel-cap-touch-7inch-dsi.dtbo
imx8mm-verdin-wifi-dev-uart4-mcu-dtbs := imx8mm-verdin-wifi-dev.dtb imx8mm-verdin-uart4-mcu.dtbo
imx8mm-verdin-wifi-yavia-dsi-to-hdmi-dtbs := imx8mm-verdin-wifi-yavia.dtb imx8mm-verdin-dsi-to-hdmi.dtbo
imx8mm-tqma8mqml-mba8mx-lvds-g133han01-dtbs += imx8mm-tqma8mqml-mba8mx.dtb imx8mm-tqma8mqml-mba8mx-lvds-g133han01.dtbo

14
arch/arm64/boot/dts/freescale/imx8mm-verdin-uart4-mcu.dtso Normal file
View File

@ -0,0 +1,14 @@
// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
/*
* Copyright (c) Toradex
*
* Verdin iMX8M Mini UART_4 for Cortex-M4F
*/
/dts-v1/;
/plugin/;
/* Verdin UART_4 */
&uart4 {
status = "reserved";
};