arm64: dts: zii-ultra: limit USB ports to USB2 speed

The internal USB is connected to a USB2 hub, the front-panel USB
is wired directly, but does not support USB3 speeds electrically.
Limit both ports accordingly.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi b/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi
index aa05d5fd1b3b9a01e50f580a84d4d85dbf4d5d9a..edbde9ed4caf7f455a26e523841fb2fce42e56bb 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi
@@ -540,6 +540,7 @@
 
 &usb_dwc3_0 {
        dr_mode = "host";
+       maximum-speed = "high-speed";
        status = "okay";
 };
 
@@ -550,6 +551,7 @@
 
 &usb_dwc3_1 {
        dr_mode = "host";
+       maximum-speed = "high-speed";
        status = "okay";
 };