From: Vitor Soares <ivitro@gmail•com>
To: Nishanth Menon <nm@ti•com>, Vignesh Raghavendra <vigneshr@ti•com>,
Tero Kristo <kristo@kernel•org>, Rob Herring <robh@kernel•org>,
Krzysztof Kozlowski <krzk+dt@kernel•org>,
Conor Dooley <conor+dt@kernel•org>
Cc: Vitor Soares <vitor.soares@toradex•com>,
linux-arm-kernel@lists•infradead.org, devicetree@vger•kernel.org,
linux-kernel@vger•kernel.org
Subject: [PATCH 2/3] arm64: dts: ti: k3-am62p-verdin: Reserve UART_4 for Cortex-R5F
Date: Tue, 2 Jun 2026 15:13:12 +0100 [thread overview]
Message-ID: <20260602141311.1366818-7-ivitro@gmail.com> (raw)
In-Reply-To: <20260602141311.1366818-5-ivitro@gmail.com>
From: Vitor Soares <vitor.soares@toradex•com>
Add a device tree overlay reserving AM62P MCU_UART0 (Verdin UART_4) for
use by the Cortex-R5F co-processor.
Signed-off-by: Vitor Soares <vitor.soares@toradex•com>
---
arch/arm64/boot/dts/ti/Makefile | 4 ++++
.../boot/dts/ti/k3-am62p5-verdin-uart4-mcu.dtso | 13 +++++++++++++
2 files changed, 17 insertions(+)
create mode 100644 arch/arm64/boot/dts/ti/k3-am62p5-verdin-uart4-mcu.dtso
diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index f2db3c878993..27a56abb1d7f 100644
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -84,6 +84,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-am62p5-verdin-nonwifi-dev.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am62p5-verdin-nonwifi-ivy.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am62p5-verdin-nonwifi-mallow.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am62p5-verdin-nonwifi-yavia.dtb
+dtb-$(CONFIG_ARCH_K3) += k3-am62p5-verdin-uart4-mcu.dtbo
dtb-$(CONFIG_ARCH_K3) += k3-am62p5-verdin-wifi-dahlia.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am62p5-verdin-wifi-dev.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am62p5-verdin-wifi-ivy.dtb
@@ -277,6 +278,8 @@ k3-am62p5-sk-csi2-tevi-ov5640-dtbs := k3-am62p5-sk.dtb \
k3-am62x-sk-csi2-tevi-ov5640.dtbo
k3-am62p5-verdin-wifi-dev-nau8822-btl-dtbs := k3-am62p5-verdin-wifi-dev.dtb \
k3-am62p5-verdin-dev-nau8822-btl.dtbo
+k3-am62p5-verdin-wifi-dev-uart4-mcu-dtbs := k3-am62p5-verdin-wifi-dev.dtb \
+ k3-am62p5-verdin-uart4-mcu.dtbo
k3-am642-evm-icssg0-dtbs := \
k3-am642-evm.dtb k3-am642-evm-icssg0.dtbo
k3-am642-evm-icssg1-dualemac-dtbs := \
@@ -376,6 +379,7 @@ dtb- += k3-am625-beagleplay-csi2-ov5640.dtb \
k3-am62p5-sk-csi2-ov5640.dtb \
k3-am62p5-sk-csi2-tevi-ov5640.dtb \
k3-am62p5-verdin-wifi-dev-nau8822-btl.dtb \
+ k3-am62p5-verdin-wifi-dev-uart4-mcu.dtb \
k3-am642-evm-icssg0.dtb \
k3-am642-evm-icssg1-dualemac.dtb \
k3-am642-evm-icssg1-dualemac-mii.dtb \
diff --git a/arch/arm64/boot/dts/ti/k3-am62p5-verdin-uart4-mcu.dtso b/arch/arm64/boot/dts/ti/k3-am62p5-verdin-uart4-mcu.dtso
new file mode 100644
index 000000000000..ad5d6a5c17c4
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am62p5-verdin-uart4-mcu.dtso
@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright (c) Toradex
+ *
+ * Verdin AM62P Cortex-R5F UART
+ */
+
+/dts-v1/;
+/plugin/;
+
+&mcu_uart0 {
+ status = "reserved";
+};
--
2.54.0
next prev parent reply other threads:[~2026-06-02 14:13 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-02 14:13 [PATCH 0/3] arm64: dts: ti: k3-am62p-verdin: Add device tree overlays Vitor Soares
2026-06-02 14:13 ` [PATCH 1/3] arm64: dts: ti: k3-am62p-verdin: Add NAU8822 Bridge Tied Load Vitor Soares
2026-06-02 14:13 ` Vitor Soares [this message]
2026-06-02 14:13 ` [PATCH 3/3] arm64: dts: ti: k3-am62p-verdin: Add Toradex OV5640 CSI Cameras Vitor Soares
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