arm64: dts: ti: k3-am62-verdin: Add Toradex Verdin Mezzanine CAN

Add a device tree overlay enabling AM62 MCU_MCAN1 on the Toradex Verdin
Development Board with Verdin AM62 Mezzanine expansion board. MCU_MCAN1
is exposed on the Mezzanine CAN Header (J13), Pin 3 (CAN1_CONN_N) and
Pin 4 (CAN1_CONN_P).

Assisted-by: Claude:claude-sonnet-4.6
Signed-off-by: Vitor Soares <vitor.soares@toradex.com>
Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://patch.msgid.link/20260522161105.277519-23-ivitro@gmail.com
Signed-off-by: Nishanth Menon <nm@ti.com>

diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index 60844951c9ce0eba2e2a3bbc441690d635f6e9fe..90bb3b0522d305b03518cee87ebe2e1aa0a0d7e5 100644 (file)
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -29,6 +29,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-am625-beagleplay-csi2-tevi-ov5640.dtbo
 dtb-$(CONFIG_ARCH_K3) += k3-am625-phyboard-lyra-rdk.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am625-sk.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am625-tqma62xx-mba62xx.dtb
+dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-dev-mezzanine-can.dtbo
 dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-dev-nau8822-btl.dtbo
 dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-dsi-to-hdmi.dtbo
 dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-dsi-to-lvds-panel-cap-touch-10inch.dtbo
@@ -228,6 +229,8 @@ k3-am625-sk-hdmi-audio-dtbs := k3-am625-sk.dtb k3-am62x-sk-hdmi-audio.dtbo
 k3-am625-verdin-wifi-dev-dsi-to-lvds-panel-cap-touch-10inch-dtbs := \
        k3-am625-verdin-wifi-dev.dtb \
        k3-am625-verdin-dsi-to-lvds-panel-cap-touch-10inch.dtbo
+k3-am625-verdin-wifi-dev-mezzanine-can-dtbs := k3-am625-verdin-wifi-dev.dtb \
+       k3-am625-verdin-dev-mezzanine-can.dtbo
 k3-am625-verdin-wifi-dev-nau8822-btl-dtbs := k3-am625-verdin-wifi-dev.dtb \
        k3-am625-verdin-dev-nau8822-btl.dtbo
 k3-am625-verdin-wifi-dev-ov5640-24mhz-dtbs := k3-am625-verdin-wifi-dev.dtb \
@@ -344,6 +347,7 @@ dtb- += k3-am625-beagleplay-csi2-ov5640.dtb \
        k3-am625-sk-csi2-tevi-ov5640.dtb \
        k3-am625-sk-hdmi-audio.dtb \
        k3-am625-verdin-wifi-dev-dsi-to-lvds-panel-cap-touch-10inch.dtb \
+       k3-am625-verdin-wifi-dev-mezzanine-can.dtb \
        k3-am625-verdin-wifi-dev-nau8822-btl.dtb \
        k3-am625-verdin-wifi-dev-ov5640-24mhz.dtb \
        k3-am625-verdin-wifi-dev-ov5640.dtb \

diff --git a/arch/arm64/boot/dts/ti/k3-am625-verdin-dev-mezzanine-can.dtso b/arch/arm64/boot/dts/ti/k3-am625-verdin-dev-mezzanine-can.dtso
new file mode 100644 (file)
index 0000000..7ebf60d
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am625-verdin-dev-mezzanine-can.dtso
@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright (c) Toradex
+ *
+ * Enable AM62 MCU_MCAN1 exposed on Toradex Verdin Development Board with
+ * Verdin AM62 Mezzanine expansion board on CAN Header (J13),
+ * Pin 3 (CAN1_CONN_N) and Pin 4 (CAN1_CONN_P).
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include "k3-pinctrl.h"
+
+&mcu_pmx0 {
+       pinctrl_mcu_mcan1: mcu-mcan1-default-pins {
+               pinctrl-single,pins = <
+                       AM62X_MCU_IOPAD(0x0040, PIN_INPUT,  0) /* (D4) MCU_MCAN1_RX (SODIMM 116) */
+                       AM62X_MCU_IOPAD(0x003c, PIN_OUTPUT, 0) /* (E5) MCU_MCAN1_TX (SODIMM 128) */
+               >;
+       };
+};
+
+&mcu_mcan1 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&pinctrl_mcu_mcan1>;
+       status = "okay";
+};