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* [PATCH 1/1] ARM: dts: ls1021a-twr: disable USB2 by default
@ 2026-10-21 20:50 Frank.Li
  0 siblings, 0 replies; only message in thread
From: Frank.Li @ 2026-10-21 20:50 UTC (permalink / raw)
  To: Frank Li, Sascha Hauer, Pengutronix Kernel Team, Fabio Estevam,
	Rob Herring, Krzysztof Kozlowski, Conor Dooley, Li Yang,
	open list:ARM/FREESCALE IMX / MXC / LAYERSCAPE ARM ARCHIT...,
	moderated list:ARM/FREESCALE IMX / MXC / LAYERSCAPE ARM ARCHIT...,
	open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS,
	open list
  Cc: imx

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


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