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| author | Kunihiko Hayashi <hayashi.kunihiko@socionext.com> | 2017-12-26 02:03:39 +0100 |
|---|---|---|
| committer | Masahiro Yamada <yamada.masahiro@socionext.com> | 2017-12-27 15:59:37 +0100 |
| commit | 6fa9b0255099fcd289f7e3857714532843044c76 (patch) | |
| tree | 04337de872bb718fdb98db9a436779a150dcf689 /arch/arm/boot/dts/uniphier-ld4.dtsi | |
| parent | ARM: dts: uniphier: add efuse node for UniPhier 32bit SoC (diff) | |
| download | linux-6fa9b0255099fcd289f7e3857714532843044c76.tar.xz linux-6fa9b0255099fcd289f7e3857714532843044c76.zip | |
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 <hayashi.kunihiko@socionext.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Diffstat (limited to 'arch/arm/boot/dts/uniphier-ld4.dtsi')
| -rw-r--r-- | arch/arm/boot/dts/uniphier-ld4.dtsi | 3 |
1 files changed, 3 insertions, 0 deletions
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 { |