On Tue, Apr 14, 2015 at 08:37:26PM +0000, Stefan Wahren wrote:
> The dr_mode of usb0 on imx233-olinuxino is left to default "otg".
> Since the green LED (GPIO2_1) on imx233-olinuxino is connected to the
> same pin as USB_OTG_ID it's possible to disable USB host by LED toggling:
>
> echo 0 > /sys/class/leds/green/brightness
> [ 1068.890000] ci_hdrc ci_hdrc.0: remove, state 1
> [ 1068.890000] usb usb1: USB disconnect, device number 1
> [ 1068.920000] usb 1-1: USB disconnect, device number 2
> [ 1068.920000] usb 1-1.1: USB disconnect, device number 3
> [ 1069.070000] usb 1-1.2: USB disconnect, device number 4
> [ 1069.450000] ci_hdrc ci_hdrc.0: USB bus 1 deregistered
> [ 1074.460000] ci_hdrc ci_hdrc.0: timeout waiting for 00000800 in 11
>
> This patch fixes the issue by setting dr_mode to "host" in the dts file.
>
> Reported-by: Harald Geyer <harald@xxxxxxxxx>
> Signed-off-by: Stefan Wahren <stefan.wahren@xxxxxxxx>
> ---
> arch/arm/boot/dts/imx23-olinuxino.dts | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm/boot/dts/imx23-olinuxino.dts b/arch/arm/boot/dts/imx23-olinuxino.dts
> index 7e6eef2..3b2d74d 100644
> --- a/arch/arm/boot/dts/imx23-olinuxino.dts
> +++ b/arch/arm/boot/dts/imx23-olinuxino.dts
> @@ -93,6 +93,7 @@
>
> ahb@80080000 {
> usb0: usb@80080000 {
> + dr_mode = "host";
> vbus-supply = <®_usb0_vbus>;
> status = "okay";
> };
> --
> 1.7.9.5
>
If this board has only host function, I am ok for it.
Acked-by: Peter Chen <peter.chen@xxxxxxxxxxxxx>
--
Best Regards,
Peter Chen
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