[PATCH v2 0/3] arm64: dts: ti: k3-am62p-verdin: Add device tree overlays

[PATCH v2 0/3] arm64: dts: ti: k3-am62p-verdin: Add device tree overlays

[Vitor Soares]

From: Vitor Soares <vitor.soares@toradex.com>

This series adds device tree overlays for the Toradex Verdin AM62P,
bringing it in line with the overlay support already present for the
Verdin AM62.

The first patch enables Bridge Tied Load (BTL) mode on the Nuvoton
NAU8822 audio codec present on the Verdin Development Board, combining
the two loudspeaker outputs for higher output power.

The second patch adds OV5640 CSI camera support on Verdin CSI_1 in two
variants: the current CSI Camera Set 5MP OV5640 with a 27 MHz oscillator
and the legacy CSI Camera Module 5MP OV5640 with a 24 MHz oscillator.

The third patch makes the MCU_UART0 (Verdin UART_4) reservation overlay
common to Verdin AM62 and Verdin AM62P. The shared overlay reserves the
UART for use by the MCU co-processor firmware as its debug UART.

Changes in v2:
 - Reworked the UART_4 MCU reservation overlay as a common AM62x Verdin
   overlay, moved it later in the series, and dropped Reviewed-by due to
   the patch rework.
 - Link to v1: https://lore.kernel.org/linux-devicetree/20260602141311.1366818-5-ivitro@gmail.com/

Vitor Soares (3):
  arm64: dts: ti: k3-am62p-verdin: Add NAU8822 Bridge Tied Load
  arm64: dts: ti: k3-am62p-verdin: Add Toradex OV5640 CSI Cameras
  arm64: dts: ti: k3-am62x-verdin: Share UART_4 MCU reservation overlay

 arch/arm64/boot/dts/ti/Makefile               | 21 +++++-
 .../ti/k3-am62p5-verdin-dev-nau8822-btl.dtso  | 14 ++++
 .../dts/ti/k3-am62p5-verdin-ov5640-24mhz.dtso | 17 +++++
 .../boot/dts/ti/k3-am62p5-verdin-ov5640.dtsi  | 72 +++++++++++++++++++
 .../boot/dts/ti/k3-am62p5-verdin-ov5640.dtso  | 18 +++++
 ...cu.dtso => k3-am62x-verdin-uart4-mcu.dtso} |  2 +-
 6 files changed, 141 insertions(+), 3 deletions(-)
 create mode 100644 arch/arm64/boot/dts/ti/k3-am62p5-verdin-dev-nau8822-btl.dtso
 create mode 100644 arch/arm64/boot/dts/ti/k3-am62p5-verdin-ov5640-24mhz.dtso
 create mode 100644 arch/arm64/boot/dts/ti/k3-am62p5-verdin-ov5640.dtsi
 create mode 100644 arch/arm64/boot/dts/ti/k3-am62p5-verdin-ov5640.dtso
 rename arch/arm64/boot/dts/ti/{k3-am625-verdin-uart4-mcu.dtso => k3-am62x-verdin-uart4-mcu.dtso} (69%)

-- 
2.54.0

[PATCH v2 1/3] arm64: dts: ti: k3-am62p-verdin: Add NAU8822 Bridge Tied Load

[Vitor Soares]

From: Vitor Soares <vitor.soares@toradex.com>

Add a device tree overlay enabling Bridge Tied Load (BTL) mode on the
Nuvoton NAU8822 audio codec present on the Verdin Development Board.
In BTL mode, the two loudspeaker outputs are bridged to deliver higher
output power on the X28 speaker connector.

Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Signed-off-by: Vitor Soares <vitor.soares@toradex.com>
---
 arch/arm64/boot/dts/ti/Makefile                    |  4 ++++
 .../dts/ti/k3-am62p5-verdin-dev-nau8822-btl.dtso   | 14 ++++++++++++++
 2 files changed, 18 insertions(+)
 create mode 100644 arch/arm64/boot/dts/ti/k3-am62p5-verdin-dev-nau8822-btl.dtso

diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index 371f9a043fe5..f2db3c878993 100644
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -78,6 +78,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-am62l3-evm.dtb
 # Boards with AM62Px SoC
 dtb-$(CONFIG_ARCH_K3) += k3-am62p5-sk.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am62p5-var-som-symphony.dtb
+dtb-$(CONFIG_ARCH_K3) += k3-am62p5-verdin-dev-nau8822-btl.dtbo
 dtb-$(CONFIG_ARCH_K3) += k3-am62p5-verdin-nonwifi-dahlia.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am62p5-verdin-nonwifi-dev.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am62p5-verdin-nonwifi-ivy.dtb
@@ -274,6 +275,8 @@ k3-am62p5-sk-csi2-ov5640-dtbs := k3-am62p5-sk.dtb \
 	k3-am62x-sk-csi2-ov5640.dtbo
 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-am642-evm-icssg0-dtbs := \
 	k3-am642-evm.dtb k3-am642-evm-icssg0.dtbo
 k3-am642-evm-icssg1-dualemac-dtbs := \
@@ -372,6 +375,7 @@ dtb- += k3-am625-beagleplay-csi2-ov5640.dtb \
 	k3-am62p5-sk-csi2-imx219.dtb \
 	k3-am62p5-sk-csi2-ov5640.dtb \
 	k3-am62p5-sk-csi2-tevi-ov5640.dtb \
+	k3-am62p5-verdin-wifi-dev-nau8822-btl.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-dev-nau8822-btl.dtso b/arch/arm64/boot/dts/ti/k3-am62p5-verdin-dev-nau8822-btl.dtso
new file mode 100644
index 000000000000..e4b662519a6b
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am62p5-verdin-dev-nau8822-btl.dtso
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright (c) Toradex
+ *
+ * Enable Bridge Tied Load (BTL) speaker mode on the Verdin Development Board,
+ * combining the two loudspeaker outputs for higher output power.
+ */
+
+/dts-v1/;
+/plugin/;
+
+&nau8822_1a {
+	nuvoton,spk-btl;
+};
-- 
2.54.0

[PATCH v2 2/3] arm64: dts: ti: k3-am62p-verdin: Add Toradex OV5640 CSI Cameras

[Vitor Soares]

From: Vitor Soares <vitor.soares@toradex.com>

Add device tree overlays for the Toradex OV5640 CSI Cameras on Verdin
AM62P CSI_1. Two variants are supported: the current CSI Camera Set 5MP
OV5640 with a 27 MHz oscillator and the legacy CSI Camera Module 5MP
OV5640 with a 24 MHz oscillator.

Link: https://developer.toradex.com/hardware/accessories/cameras/csi-camera-module-5mp-ov5640-arducam
Link: https://developer.toradex.com/hardware/legacy-products/other/csi-camera-module-5mp-ov5640/
Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Signed-off-by: Vitor Soares <vitor.soares@toradex.com>
---
 arch/arm64/boot/dts/ti/Makefile               |  8 +++
 .../dts/ti/k3-am62p5-verdin-ov5640-24mhz.dtso | 17 +++++
 .../boot/dts/ti/k3-am62p5-verdin-ov5640.dtsi  | 72 +++++++++++++++++++
 .../boot/dts/ti/k3-am62p5-verdin-ov5640.dtso  | 18 +++++
 4 files changed, 115 insertions(+)
 create mode 100644 arch/arm64/boot/dts/ti/k3-am62p5-verdin-ov5640-24mhz.dtso
 create mode 100644 arch/arm64/boot/dts/ti/k3-am62p5-verdin-ov5640.dtsi
 create mode 100644 arch/arm64/boot/dts/ti/k3-am62p5-verdin-ov5640.dtso

diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index f2db3c878993..8541e43d24b7 100644
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -84,6 +84,8 @@ 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-$(CONFIG_ARCH_K3) += k3-am62p5-verdin-ov5640-24mhz.dtbo
+dtb-$(CONFIG_ARCH_K3) += k3-am62p5-verdin-ov5640.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 +279,10 @@ 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-ov5640-24mhz-dtbs := k3-am62p5-verdin-wifi-dev.dtb \
+	k3-am62p5-verdin-ov5640-24mhz.dtbo
+k3-am62p5-verdin-wifi-dev-ov5640-dtbs := k3-am62p5-verdin-wifi-dev.dtb \
+	k3-am62p5-verdin-ov5640.dtbo
 k3-am642-evm-icssg0-dtbs := \
 	k3-am642-evm.dtb k3-am642-evm-icssg0.dtbo
 k3-am642-evm-icssg1-dualemac-dtbs := \
@@ -376,6 +382,8 @@ 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-ov5640-24mhz.dtb \
+	k3-am62p5-verdin-wifi-dev-ov5640.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-ov5640-24mhz.dtso b/arch/arm64/boot/dts/ti/k3-am62p5-verdin-ov5640-24mhz.dtso
new file mode 100644
index 000000000000..1da6329065e6
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am62p5-verdin-ov5640-24mhz.dtso
@@ -0,0 +1,17 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright (c) Toradex
+ *
+ * Toradex CSI Camera Module 5MP OV5640 on Verdin AM62P CSI_1.
+ *
+ * https://developer.toradex.com/hardware/legacy-products/other/csi-camera-module-5mp-ov5640/
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include "k3-am62p5-verdin-ov5640.dtsi"
+
+&clock_camera {
+	clock-frequency = <24000000>;
+};
diff --git a/arch/arm64/boot/dts/ti/k3-am62p5-verdin-ov5640.dtsi b/arch/arm64/boot/dts/ti/k3-am62p5-verdin-ov5640.dtsi
new file mode 100644
index 000000000000..f0430b1efcf1
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am62p5-verdin-ov5640.dtsi
@@ -0,0 +1,72 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright (c) Toradex
+ *
+ * Common device tree include for Toradex OV5640 CSI camera on Verdin AM62P CSI_1.
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+
+&{/} {
+	clock_camera: clock-camera {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+	};
+
+	regulator_camera: regulator-camera {
+		compatible = "regulator-fixed";
+		/* Verdin GPIO_8_CSI (SODIMM 222) - CAM_1_CON_PWRCTRL */
+		gpio = <&main_gpio0 52 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		regulator-name = "V_CSI";
+		startup-delay-us = <5000>;
+	};
+};
+
+&csi0_port0 {
+	status = "okay";
+
+	csi2rx0_in_sensor: endpoint {
+		remote-endpoint = <&csi2_cam0>;
+		bus-type = <4>; /* CSI2 DPHY */
+		clock-lanes = <0>;
+		data-lanes = <1 2>;
+	};
+};
+
+&dphy0 {
+	status = "okay";
+};
+
+/* Verdin I2C_4_CSI */
+&main_i2c3 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	camera@3c {
+		compatible = "ovti,ov5640";
+		reg = <0x3c>;
+
+		clocks = <&clock_camera>;
+		clock-names = "xclk";
+		AVDD-supply = <&regulator_camera>;
+		DOVDD-supply = <&regulator_camera>;
+		DVDD-supply = <&regulator_camera>;
+		/* Verdin GPIO_6 (SODIMM 218) - CAM_1_CON_PWRDWN */
+		powerdown-gpios = <&main_gpio0 50 GPIO_ACTIVE_HIGH>;
+		/* Verdin GPIO_5 (SODIMM 216) - CAM_1_CON_RST */
+		reset-gpios = <&main_gpio0 49 GPIO_ACTIVE_LOW>;
+
+		port {
+			csi2_cam0: endpoint {
+				remote-endpoint = <&csi2rx0_in_sensor>;
+				clock-lanes = <0>;
+				data-lanes = <1 2>;
+			};
+		};
+	};
+};
+
+&ti_csi2rx0 {
+	status = "okay";
+};
diff --git a/arch/arm64/boot/dts/ti/k3-am62p5-verdin-ov5640.dtso b/arch/arm64/boot/dts/ti/k3-am62p5-verdin-ov5640.dtso
new file mode 100644
index 000000000000..2e90aeb448b9
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am62p5-verdin-ov5640.dtso
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright (c) Toradex
+ *
+ * Toradex CSI Camera Set 5MP OV5640 on Verdin AM62P CSI_1.
+ *
+ * https://developer.toradex.com/hardware/accessories/cameras/csi-camera-module-5mp-ov5640-arducam
+ * https://www.toradex.com/accessories/csi-camera-ov5640
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include "k3-am62p5-verdin-ov5640.dtsi"
+
+&clock_camera {
+	clock-frequency = <27000000>;
+};
-- 
2.54.0

[PATCH v2 3/3] arm64: dts: ti: k3-am62x-verdin: Share UART_4 MCU reservation overlay

[Vitor Soares]

From: Vitor Soares <vitor.soares@toradex.com>

Verdin AM62 and AM62P both expose mcu_uart0 as Verdin UART_4, and the
reservation needed when this UART is used by the MCU firmware is
identical on both SoMs.

Rename the AM625-specific overlay added in commit ca61bcec3e8a ("arm64:
dts: ti: k3-am62-verdin: Reserve UART_4 for Cortex-M4F") to a common
k3-am62x-verdin overlay and use it for both AM625 and AM62P5 Verdin
combined DTBs. This avoids carrying identical SoC-specific overlays for
each remoteproc firmware/peripheral combination.

Signed-off-by: Vitor Soares <vitor.soares@toradex.com>
---
 arch/arm64/boot/dts/ti/Makefile                          | 9 +++++++--
 ...din-uart4-mcu.dtso => k3-am62x-verdin-uart4-mcu.dtso} | 2 +-
 2 files changed, 8 insertions(+), 3 deletions(-)
 rename arch/arm64/boot/dts/ti/{k3-am625-verdin-uart4-mcu.dtso => k3-am62x-verdin-uart4-mcu.dtso} (69%)

diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index 8541e43d24b7..874577298d6c 100644
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -48,7 +48,6 @@ dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-ov5640.dtbo
 dtb-$(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
@@ -98,6 +97,9 @@ dtb-$(CONFIG_ARCH_K3) += k3-am62x-sk-csi2-tevi-ov5640.dtbo
 dtb-$(CONFIG_ARCH_K3) += k3-am62x-sk-csi2-imx219.dtbo
 dtb-$(CONFIG_ARCH_K3) += k3-am62x-sk-hdmi-audio.dtbo
 
+# Common overlays for Verdin AM62 and AM62P family of boards
+dtb-$(CONFIG_ARCH_K3) += k3-am62x-verdin-uart4-mcu.dtbo
+
 # Boards with AM64x SoC
 dtb-$(CONFIG_ARCH_K3) += k3-am642-evm.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am642-evm-icssg0.dtbo
@@ -248,7 +250,7 @@ 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-am62x-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
@@ -283,6 +285,8 @@ k3-am62p5-verdin-wifi-dev-ov5640-24mhz-dtbs := k3-am62p5-verdin-wifi-dev.dtb \
 	k3-am62p5-verdin-ov5640-24mhz.dtbo
 k3-am62p5-verdin-wifi-dev-ov5640-dtbs := k3-am62p5-verdin-wifi-dev.dtb \
 	k3-am62p5-verdin-ov5640.dtbo
+k3-am62p5-verdin-wifi-dev-uart4-mcu-dtbs := k3-am62p5-verdin-wifi-dev.dtb \
+	k3-am62x-verdin-uart4-mcu.dtbo
 k3-am642-evm-icssg0-dtbs := \
 	k3-am642-evm.dtb k3-am642-evm-icssg0.dtbo
 k3-am642-evm-icssg1-dualemac-dtbs := \
@@ -384,6 +388,7 @@ dtb- += k3-am625-beagleplay-csi2-ov5640.dtb \
 	k3-am62p5-verdin-wifi-dev-nau8822-btl.dtb \
 	k3-am62p5-verdin-wifi-dev-ov5640-24mhz.dtb \
 	k3-am62p5-verdin-wifi-dev-ov5640.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-am625-verdin-uart4-mcu.dtso b/arch/arm64/boot/dts/ti/k3-am62x-verdin-uart4-mcu.dtso
similarity index 69%
rename from arch/arm64/boot/dts/ti/k3-am625-verdin-uart4-mcu.dtso
rename to arch/arm64/boot/dts/ti/k3-am62x-verdin-uart4-mcu.dtso
index e263809cdf74..a3b50efbe52b 100644
--- a/arch/arm64/boot/dts/ti/k3-am625-verdin-uart4-mcu.dtso
+++ b/arch/arm64/boot/dts/ti/k3-am62x-verdin-uart4-mcu.dtso
@@ -2,7 +2,7 @@
 /*
  * Copyright (c) Toradex
  *
- * Verdin AM62 Cortex-M4F debug UART
+ * Verdin AM62 and AM62P UART_4 reserved for the MCU co-processor
  */
 
 /dts-v1/;
-- 
2.54.0