From: Frank.Li@oss.nxp.com
To: Frank Li <Frank.Li@nxp.com>,
Sascha Hauer <s.hauer@pengutronix.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>, Li Yang <leoyang.li@nxp.com>,
imx@lists.linux.dev (open list:ARM/FREESCALE IMX / MXC /
LAYERSCAPE ARM ARCHIT...),
linux-arm-kernel@lists.infradead.org (moderated
list:ARM/FREESCALE IMX / MXC / LAYERSCAPE ARM ARCHIT...),
devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND
FLATTENED DEVICE TREE BINDINGS),
linux-kernel@vger.kernel.org (open list)
Cc: imx@lists.linux.dev
Subject: [PATCH 1/1] ARM: dts: ls1021a-twr: disable USB2 by default
Date: Wed, 21 Oct 2026 16:50:15 -0400 [thread overview]
Message-ID: <20261021205018.4037171-1-Frank.Li@oss.nxp.com> (raw)
From: Li Yang <leoyang.li@nxp.com>
The TWR-ls1021a board doesn't have the USB2 port natively. However the
USB2 pins are routed to the ELEV expansion ports and only available with
TWR-SER2 board connected. So disable the USB2 by default and users
of TWR-SER2 board should update the dts to enable it or apply an
additional overlay.
Signed-off-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
---
arch/arm/boot/dts/nxp/ls/ls1021a-twr.dts | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/arm/boot/dts/nxp/ls/ls1021a-twr.dts b/arch/arm/boot/dts/nxp/ls/ls1021a-twr.dts
index ca5c66c066db6..e1daeaa093e0f 100644
--- a/arch/arm/boot/dts/nxp/ls/ls1021a-twr.dts
+++ b/arch/arm/boot/dts/nxp/ls/ls1021a-twr.dts
@@ -224,6 +224,10 @@ &uart1 {
status = "okay";
};
+&usb2 {
+ status = "disabled";
+};
+
&can0 {
status = "okay";
};
--
2.43.0
reply other threads:[~2026-10-21 20:50 UTC|newest]
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