From 81038431ccac277e4ff26953f5e829eef6e65736 Mon Sep 17 00:00:00 2001 From: Denys Drozdov Date: Wed, 20 Oct 2021 13:18:33 +0300 Subject: verdin-imx8mm: optionally shutdown can interfaces Verdin iMX8M Mini DualLite does not have a can interface which leads to the following message in the boot log. [ 8.752956] mcp25xxfd spi2.0: CRC read error: computed: 6c2a received: ffff - data: be 00 04 ff ff ff ff [ 8.782993] mcp25xxfd spi2.0: CRC read of clock register resulted in a bad CRC mismatch - hw not found [ 8.863803] mcp25xxfd spi2.0: Probe failed, err=84 This overlay disables the CAN1 node to avoid error messages in dmesg. Related-to: ELB-4187 Signed-off-by: Denys Drozdov --- overlays/Makefile | 1 + overlays/verdin-imx8mm_disable_can1.dts | 18 ++++++++++++++++++ 2 files changed, 19 insertions(+) create mode 100644 overlays/verdin-imx8mm_disable_can1.dts diff --git a/overlays/Makefile b/overlays/Makefile index af058c7..de87bf6 100644 --- a/overlays/Makefile +++ b/overlays/Makefile @@ -92,6 +92,7 @@ dtb-y += display-lt161010_overlay.dtbo dtb-y += display-lt170410_overlay.dtbo dtb-y += display-vga_overlay.dtbo dtb-y += touch-atmel-mxt_overlay.dtbo +dtb-y += verdin-imx8mm_disable_can1.dtbo dtb-y += verdin-imx8mm_lt8912_overlay.dtbo dtb-y += verdin-imx8mm_ov5640_overlay.dtbo dtb-y += verdin-imx8mm_sn65dsi84-lt170410_overlay.dtbo diff --git a/overlays/verdin-imx8mm_disable_can1.dts b/overlays/verdin-imx8mm_disable_can1.dts new file mode 100644 index 0000000..0972304 --- /dev/null +++ b/overlays/verdin-imx8mm_disable_can1.dts @@ -0,0 +1,18 @@ +// SPDX-License-Identifier: GPL-2.0-or-later OR MIT +/* + * Copyright 2020-2021 Toradex + */ + +// Disable CAN1 for Verdin iMX8M Mini DualLite + +/dts-v1/; +/plugin/; + +/ { + compatible = "toradex,verdin-imx8mm"; +}; + +&can1 { + status = "disabled"; +}; + -- cgit v1.2.3