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From:   Diego Rondini <diego.rondini@kynetics.com>
To:     Maxime Ripard <mripard@kernel.org>
Cc:     Rob Herring <robh+dt@kernel.org>, Chen-Yu Tsai <wens@csie.org>,
        devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-kernel@vger.kernel.org, linux-sunxi@googlegroups.com,
        Diego Rondini <diego.rondini@kynetics.com>
Subject: [PATCH v2 1/2] ARM: dts: orange-pi-zero-plus2: enable USB OTG port
Date:   Mon, 15 Jun 2020 15:02:23 +0200
Message-Id: <20200615130223.34464-1-diego.rondini@kynetics.com>
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Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

Enable support for USB OTG port on Orange Pi Zero Plus 2 (both H3 and H5
variants). As, according to the board schematics, the USB OTG port cannot
provide power to external devices, we set dr_mode to peripheral.

Signed-off-by: Diego Rondini <diego.rondini@kynetics.com>
---
v2:
- reordered nodes alphabetically
---
 .../boot/dts/sun8i-h3-orangepi-zero-plus2.dts | 23 +++++++++++++++++++
 .../sun50i-h5-orangepi-zero-plus2.dts         | 23 +++++++++++++++++++
 2 files changed, 46 insertions(+)

diff --git a/arch/arm/boot/dts/sun8i-h3-orangepi-zero-plus2.dts b/arch/arm/boot/dts/sun8i-h3-orangepi-zero-plus2.dts
index b8f46e2802fd3..cbe32b975c5fe 100644
--- a/arch/arm/boot/dts/sun8i-h3-orangepi-zero-plus2.dts
+++ b/arch/arm/boot/dts/sun8i-h3-orangepi-zero-plus2.dts
@@ -88,6 +88,10 @@ &de {
 	status = "okay";
 };
 
+&ehci0 {
+	status = "okay";
+};
+
 &hdmi {
 	status = "okay";
 };
@@ -132,8 +136,27 @@ &mmc2 {
 	status = "okay";
 };
 
+&ohci0 {
+	status = "okay";
+};
+
 &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_pa_pins>;
 	status = "okay";
 };
+
+&usb_otg {
+	/*
+	 * According to schematics CN1 MicroUSB port can be used to take
+	 * external 5V to power up the board VBUS. On the contrary CN1 MicroUSB
+	 * port cannot provide power externally even if the board is powered
+	 * via GPIO pins. It thus makes sense to force peripheral mode.
+	 */
+	dr_mode = "peripheral";
+	status = "okay";
+};
+
+&usbphy {
+	status = "okay";
+};
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus2.dts b/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus2.dts
index c95a68541309c..e67733d133bb4 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus2.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus2.dts
@@ -48,6 +48,10 @@ &de {
 	status = "okay";
 };
 
+&ehci0 {
+	status = "okay";
+};
+
 &hdmi {
 	status = "okay";
 };
@@ -92,6 +96,10 @@ &mmc2 {
 	status = "okay";
 };
 
+&ohci0 {
+	status = "okay";
+};
+
 &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_pa_pins>;
@@ -103,3 +111,18 @@ &uart1 {
 	pinctrl-0 = <&uart1_pins>, <&uart1_rts_cts_pins>;
 	status = "okay";
 };
+
+&usb_otg {
+	/*
+	 * According to schematics CN1 MicroUSB port can be used to take
+	 * external 5V to power up the board VBUS. On the contrary CN1 MicroUSB
+	 * port cannot provide power externally even if the board is powered
+	 * via GPIO pins. It thus makes sense to force peripheral mode.
+	 */
+	dr_mode = "peripheral";
+	status = "okay";
+};
+
+&usbphy {
+	status = "okay";
+};
-- 
2.26.2