diff options
| author | Vitor Soares <vitor.soares@toradex.com> | 2026-05-22 19:11:12 +0300 |
|---|---|---|
| committer | Nishanth Menon <nm@ti.com> | 2026-05-29 22:59:32 +0300 |
| commit | ca61bcec3e8a52ad2bf8b02f9244df1d47447ffa (patch) | |
| tree | 10de46ff27c83310d1832155591a5160046c0222 | |
| parent | a8891ba79990aded756e8bb92ebb690a4da6dab2 (diff) | |
| download | linux-ca61bcec3e8a52ad2bf8b02f9244df1d47447ffa.tar.xz | |
arm64: dts: ti: k3-am62-verdin: Reserve UART_4 for Cortex-M4F
Add a device tree overlay reserving AM62 MCU_UART0 (Verdin UART_4) for
use by the Cortex-M4F co-processor as its debug UART.
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/20260522161105.277519-21-ivitro@gmail.com
Signed-off-by: Nishanth Menon <nm@ti.com>
| -rw-r--r-- | arch/arm64/boot/dts/ti/Makefile | 4 | ||||
| -rw-r--r-- | arch/arm64/boot/dts/ti/k3-am625-verdin-uart4-mcu.dtso | 13 |
2 files changed, 17 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile index a1083c0b2502..31c9bc1d48b1 100644 --- a/arch/arm64/boot/dts/ti/Makefile +++ b/arch/arm64/boot/dts/ti/Makefile @@ -44,6 +44,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-nonwifi-zinnia.dtb dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-panel-cap-touch-10inch-dsi.dtbo dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-panel-cap-touch-10inch-lvds.dtbo dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-panel-cap-touch-7inch-dsi.dtbo +dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-uart4-mcu.dtbo dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-wifi-dahlia-dsi-to-hdmi.dtb dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-wifi-dahlia-panel-cap-touch-10inch-dsi.dtb dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-wifi-dahlia.dtb @@ -230,6 +231,8 @@ k3-am625-verdin-wifi-dev-nau8822-btl-dtbs := k3-am625-verdin-wifi-dev.dtb \ k3-am625-verdin-wifi-dev-panel-cap-touch-7inch-dsi-dtbs := \ k3-am625-verdin-wifi-dev.dtb \ k3-am625-verdin-panel-cap-touch-7inch-dsi.dtbo +k3-am625-verdin-wifi-dev-uart4-mcu-dtbs := k3-am625-verdin-wifi-dev.dtb \ + k3-am625-verdin-uart4-mcu.dtbo k3-am625-verdin-wifi-mallow-panel-cap-touch-10inch-lvds-dtbs := \ k3-am625-verdin-wifi-mallow.dtb \ k3-am625-verdin-panel-cap-touch-10inch-lvds.dtbo @@ -337,6 +340,7 @@ dtb- += k3-am625-beagleplay-csi2-ov5640.dtb \ k3-am625-verdin-wifi-dev-dsi-to-lvds-panel-cap-touch-10inch.dtb \ k3-am625-verdin-wifi-dev-nau8822-btl.dtb \ k3-am625-verdin-wifi-dev-panel-cap-touch-7inch-dsi.dtb \ + k3-am625-verdin-wifi-dev-uart4-mcu.dtb \ k3-am625-verdin-wifi-mallow-panel-cap-touch-10inch-lvds.dtb \ k3-am62-lp-sk-hdmi-audio.dtb \ k3-am62-lp-sk-nand.dtb \ diff --git a/arch/arm64/boot/dts/ti/k3-am625-verdin-uart4-mcu.dtso b/arch/arm64/boot/dts/ti/k3-am625-verdin-uart4-mcu.dtso new file mode 100644 index 000000000000..e263809cdf74 --- /dev/null +++ b/arch/arm64/boot/dts/ti/k3-am625-verdin-uart4-mcu.dtso @@ -0,0 +1,13 @@ +// SPDX-License-Identifier: GPL-2.0-or-later OR MIT +/* + * Copyright (c) Toradex + * + * Verdin AM62 Cortex-M4F debug UART + */ + +/dts-v1/; +/plugin/; + +&mcu_uart0 { + status = "reserved"; +}; |