From 6fa9b0255099fcd289f7e3857714532843044c76 Mon Sep 17 00:00:00 2001 From: Kunihiko Hayashi Date: Tue, 26 Dec 2017 10:03:39 +0900 Subject: ARM: dts: uniphier: add has-transaction-translator property to usb node for LD4, sLD8 and Pro4 When a full/low speed device is connected to USB 2.0 port on UniPhier SoC that has ehci controller, the kernel shows the following messages. | usb usb1-port1: Cannot enable. Maybe the USB cable is bad? | usb usb1-port1: Cannot enable. Maybe the USB cable is bad? | usb usb1-port1: Cannot enable. Maybe the USB cable is bad? | usb usb1-port1: unable to enumerate USB device To fix the issue, the driver needs to enable Transaction Translator on ehci root hub. This adds 'has-transaction-translator' property to each node. Signed-off-by: Kunihiko Hayashi Signed-off-by: Masahiro Yamada --- arch/arm/boot/dts/uniphier-ld4.dtsi | 3 +++ 1 file changed, 3 insertions(+) (limited to 'arch/arm/boot/dts/uniphier-ld4.dtsi') diff --git a/arch/arm/boot/dts/uniphier-ld4.dtsi b/arch/arm/boot/dts/uniphier-ld4.dtsi index 7a8cb11c23a4..0459e84d4d8e 100644 --- a/arch/arm/boot/dts/uniphier-ld4.dtsi +++ b/arch/arm/boot/dts/uniphier-ld4.dtsi @@ -237,6 +237,7 @@ <&mio_clk 12>; resets = <&sys_rst 8>, <&mio_rst 7>, <&mio_rst 8>, <&mio_rst 12>; + has-transaction-translator; }; usb1: usb@5a810100 { @@ -250,6 +251,7 @@ <&mio_clk 13>; resets = <&sys_rst 8>, <&mio_rst 7>, <&mio_rst 9>, <&mio_rst 13>; + has-transaction-translator; }; usb2: usb@5a820100 { @@ -263,6 +265,7 @@ <&mio_clk 14>; resets = <&sys_rst 8>, <&mio_rst 7>, <&mio_rst 10>, <&mio_rst 14>; + has-transaction-translator; }; soc-glue@5f800000 { -- cgit v1.2.3