From 1bbab5b041bd477457fca3e8043881788a1c2f46 Mon Sep 17 00:00:00 2001 From: Max Krummenacher Date: Wed, 31 Mar 2021 14:35:03 +0200 Subject: overlays: colibri-imx7: add uart b disable overlay This allows for disabling the UART B in Linux freeing it for potential M4 use. Related-to: ELB-3520 Signed-off-by: Max Krummenacher --- overlays/Makefile | 1 + overlays/colibri-imx7_disable-uart-b_overlay.dts | 19 +++++++++++++++++++ 2 files changed, 20 insertions(+) create mode 100644 overlays/colibri-imx7_disable-uart-b_overlay.dts diff --git a/overlays/Makefile b/overlays/Makefile index a916cbd..6c1d4bd 100644 --- a/overlays/Makefile +++ b/overlays/Makefile @@ -50,6 +50,7 @@ dtb-y += colibri-imx6_stmpe-ts_overlay.dtbo dtb-y += colibri-imx7_ad7879_overlay.dtbo dtb-y += colibri-imx7_atmel-mxt-adapter_overlay.dtbo dtb-y += colibri-imx7_atmel-mxt-connector_overlay.dtbo +dtb-y += colibri-imx7_disable-uart-b_overlay.dtbo dtb-y += colibri-imx7-eval_spidev_overlay.dtbo dtb-y += colibri-imx7_fusion-f0710a-adapter_overlay.dtbo dtb-y += colibri-imx7_fusion-f0710a-connector_overlay.dtbo diff --git a/overlays/colibri-imx7_disable-uart-b_overlay.dts b/overlays/colibri-imx7_disable-uart-b_overlay.dts new file mode 100644 index 0000000..420847f --- /dev/null +++ b/overlays/colibri-imx7_disable-uart-b_overlay.dts @@ -0,0 +1,19 @@ +// SPDX-License-Identifier: GPL-2.0-or-later OR MIT +/* + * Copyright 2020-2021 Toradex + */ + +// Disable UART2, aka UART_B on the Colibri iMX7 + +/dts-v1/; +/plugin/; + +/ { + compatible = "toradex,colibri-imx7d", + "toradex,colibri-imx7d-emmc", + "toradex,colibri-imx7s"; +}; + +&uart2 { + status = "disabled"; +}; -- cgit v1.2.3