From mboxrd@z Thu Jan 1 00:00:00 1970 From: marex@denx.de (Marek Vasut) Date: Sat, 22 Jun 2013 15:29:52 +0200 Subject: Chipidea usb otg support for IMX/MXS (device functionality) In-Reply-To: References: <51A5A808.2070803@digi.com> <201306220433.58281.marex@denx.de> Message-ID: <201306221529.53043.marex@denx.de> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi Peter, > > Peter, I dunno if you are already aware of it, but the USB peripheral > > mode hangs > > on MX233. It's easy to replicate for example if you try to run CDC > > ethernet over > > the USB peripheral mode, then telnet into the board and run "dmesg" . > > This will > > trigger a "larger" data transfer which will make the UDC driver hang. > > This > > doesn't happen on MX28 so it must be some MX233-specific thing. > > Marek, Have you tried below? > > http://marc.info/?l=linux-usb&m=136537318510847&w=2 > > It may not the USB itself problem, the mx23's usb is almost > the same with mx28's. This also happens on a different MX23-based board for me. This other board I tried has mDDR DRAM and the DRAM is operating correctly. The 96MHz thing people complained about in the Olimex forum is resolved now. Best regards, Marek Vasut