From 80386a7042bf0aaa5caf43f91371a359c5af616f Mon Sep 17 00:00:00 2001 From: Henrique Garcia Date: Mon, 28 Mar 2022 08:32:41 -0300 Subject: colibri-imx8x: add overlay to disable the cortex-m's uart Related-to: ELB-4380 Signed-off-by: Henrique Garcia --- overlays/Makefile | 1 + .../colibri-imx8x_disable-cm40-uart_overlay.dts | 21 +++++++++++++++++++++ 2 files changed, 22 insertions(+) create mode 100644 overlays/colibri-imx8x_disable-cm40-uart_overlay.dts diff --git a/overlays/Makefile b/overlays/Makefile index 19bd504..0abb532 100644 --- a/overlays/Makefile +++ b/overlays/Makefile @@ -70,6 +70,7 @@ dtb-y += colibri-imx7_lcd-vga_overlay.dtbo dtb-y += colibri-imx8x_ad7879_overlay.dtbo dtb-y += colibri-imx8x_atmel-mxt-adapter_overlay.dtbo dtb-y += colibri-imx8x_atmel-mxt-connector_overlay.dtbo +dtb-y += colibri-imx8x_disable-cm40-uart_overlay.dtbo dtb-y += colibri-imx8x_display-lcdif_overlay.dtbo dtb-y += colibri-imx8x_dsihdmi_overlay.dtbo dtb-y += colibri-imx8x-eval_spidev_overlay.dtbo diff --git a/overlays/colibri-imx8x_disable-cm40-uart_overlay.dts b/overlays/colibri-imx8x_disable-cm40-uart_overlay.dts new file mode 100644 index 0000000..e778c87 --- /dev/null +++ b/overlays/colibri-imx8x_disable-cm40-uart_overlay.dts @@ -0,0 +1,21 @@ +// SPDX-License-Identifier: GPL-2.0-or-later OR MIT +/* + * Copyright 2021 Toradex + */ + +// Disables, at the Linux side, the UART that is shared with Cortex-M + +/dts-v1/; +/plugin/; + +/{ + compatible = "toradex,colibri-imx8"; +}; + +&cm40_lpuart { + status = "disabled"; +}; + +&cm40_uart_lpcg { + status = "disabled"; +}; -- cgit v1.2.3