From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tom Rini Date: Thu, 12 Jul 2012 06:15:01 -0700 Subject: [U-Boot] Ethernet on PandaBoard In-Reply-To: <4FFECBBA.9030308@mlbassoc.com> References: <4FFD7AE2.8000109@mlbassoc.com> <20120712092018.GA5464@oliver-linux> <20120712093036.GB5464@oliver-linux> <4FFECBBA.9030308@mlbassoc.com> Message-ID: <20120712131501.GC7993@oliver-linux> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On Thu, Jul 12, 2012 at 07:06:02AM -0600, Gary Thomas wrote: > On 2012-07-12 03:30, Tom Rini wrote: > >On Thu, Jul 12, 2012 at 02:20:18AM -0700, Tom Rini wrote: > >>On Wed, Jul 11, 2012 at 07:08:50AM -0600, Gary Thomas wrote: > >> > >>>I just tried rev 211e47549b668c7cdd8658c0413a272f0d0495d4 (v2012.07-rc1) > >>>for my PandaBoard. Sadly, this is failing when I try to use the onboard > >>>ethernet (EHCI USB based) controller: > >> > >>Sorry for the late response, at a conference. This is a known problem > >>and we will either have this fixed soon (Ilya Yanok is working on a > >>series) or we will build-time disable dcache support on these boards and > >>fix this properly for the next release. > >> > >>In short, some cache clean-ups in ehci-hcd.c exposed other cache > >>problems on other platforms where our cache size is 64 not 32bytes. > > > >I take it back, I forgot omap4 is 32byte cache. With the fix that > >Tetsuyuki Kobayashi pointed you at (oh, and a Tested-by to that thread > >if you can), can you please do a little stress testing of USB, to make > >sure things are otherwise really happy (eth and perhaps a USB stick)? > >Thanks alot! > > > > Yesterday, this was working great. This morning, when I turned on > the board, it can no longer find anything on the USB bus - nothing at > all. This also applies to Linux when I boot from SD. I'm really > confused :-( > > If I boot the board using the 2011.06 U-Boot, all is happy again. > It looks like the USB HUB (USB3320) seems to be stuck in reset when > I use the latest U-Boot. > > Ever hear of any problems like this? How about if you turn the dcache off at run or build time? -- Tom