On Tue, Aug 21, 2012 at 1:04 AM, Fabio Estevam <festevam@xxxxxxxxx> wrote: > From: Fabio Estevam <fabio.estevam@xxxxxxxxxxxxx> > > Differently from mx28 and mx6q, the mx23 SoC has the following description > about ENHOSTDISCONDETECT bit in its Reference Manual: > > "Due to a on chip issue (Errata #2791), software must pay attention to when > to assert the ENHOSTDISCONDETECT bit in HW_USBPHY_CTRL register: > 1. Only set HW_USBPHY_CTRL.ENHOSTDISCONDETECT during high speed host mode. > 2. Do not set HW_USBPHY_CTRL.ENHOSTDISCONDETECT during the reset and speed > negotiation period. > 3. Do not set HW_USBPHY_CTRL.ENHOSTDISCONDETECT during host suspend/resume > sequence." > > If ENHOSTDISCONDETECT is not handled on mx23, USB host can work. > > Tested on a imx23-olinuxino board. > > Suggested-by: Sean Cross <xobs@xxxxxxxx> > Signed-off-by: Fabio Estevam <fabio.estevam@xxxxxxxxxxxxx> Please discard this patch. Will submit an updated one soon. Regards, Fabio Estevam -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
