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ARM: dts: imx6: rdu2: Limit USBH1 to Full Speed

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[ Upstream commit 6bb1e09c4c ]

Cabling used to connect devices to USBH1 on RDU2 does not meet USB
spec cable quality and cable length requirements to operate at High
Speed, so limit the port to Full Speed only.

Reported-by: Chris Healy <cphealy@gmail.com>
Reviewed-by: Chris Healy <cphealy@gmail.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Andrey Smirnov 2019-12-09 08:50:18 -08:00 committed by Greg Kroah-Hartman
parent f3e63a4ddf
commit 2fc3362136
1 changed files with 1 additions and 0 deletions
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arch/arm/boot/dts/imx6qdl-zii-rdu2.dtsi
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@ -774,6 +774,7 @@ switchphy4: switchphy@4 {
&usbh1 {
vbus-supply = <&reg_5p0v_main>;
disable-over-current;
maximum-speed = "full-speed";
status = "okay";
};