Commit 31f1961d authored Dec 26, 2017 by Kunihiko Hayashi Committed by Masahiro Yamada Dec 28, 2017

arm64: dts: uniphier: add has-transaction-translator property to usb node for LD11



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 <hayashi.kunihiko@socionext.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

parent c2aea8a4

arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi

+3 −0

Original line number	Diff line number	Diff line
		@@ -348,6 +348,7 @@
		<&mio_clk 12>;
		resets = <&sys_rst 8>, <&mio_rst 7>, <&mio_rst 8>,
		<&mio_rst 12>;
		has-transaction-translator;
		};

		usb1: usb@5a810100 {
		@@ -361,6 +362,7 @@
		<&mio_clk 13>;
		resets = <&sys_rst 8>, <&mio_rst 7>, <&mio_rst 9>,
		<&mio_rst 13>;
		has-transaction-translator;
		};

		usb2: usb@5a820100 {
		@@ -374,6 +376,7 @@
		<&mio_clk 14>;
		resets = <&sys_rst 8>, <&mio_rst 7>, <&mio_rst 10>,
		<&mio_rst 14>;
		has-transaction-translator;
		};

		mioctrl@5b3e0000 {

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