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authorAndrey Smirnov <andrew.smirnov@gmail.com>2019-12-09 17:50:18 +0100
committerShawn Guo <shawnguo@kernel.org>2019-12-12 02:31:32 +0100
commit6bb1e09c4c375db29770444f689f35f5cbe696bc (patch)
treea5735928270365ab8f79f49a9a1fea9006d11136 /arch/arm/boot
parentARM: dts: imx6: rdu2: Disable WP for USDHC2 and USDHC3 (diff)
downloadlinux-6bb1e09c4c375db29770444f689f35f5cbe696bc.tar.xz
linux-6bb1e09c4c375db29770444f689f35f5cbe696bc.zip
ARM: dts: imx6: rdu2: Limit USBH1 to Full Speed
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>
Diffstat (limited to 'arch/arm/boot')
-rw-r--r--arch/arm/boot/dts/imx6qdl-zii-rdu2.dtsi1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/imx6qdl-zii-rdu2.dtsi b/arch/arm/boot/dts/imx6qdl-zii-rdu2.dtsi
index 294c49254e57..0075637f9b0b 100644
--- a/arch/arm/boot/dts/imx6qdl-zii-rdu2.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-zii-rdu2.dtsi
@@ -807,6 +807,7 @@
&usbh1 {
vbus-supply = <&reg_5p0v_main>;
disable-over-current;
+ maximum-speed = "full-speed";
status = "okay";
};