From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marek Vasut Date: Tue, 6 Mar 2012 09:22:18 +0100 Subject: [U-Boot] [PATCH v8] usb: align buffers at cacheline In-Reply-To: <4F55B5F9.80407@nvidia.com> References: <4F54BEA9.6060302@boundarydevices.com> <4F55B5F9.80407@nvidia.com> Message-ID: <201203060922.18427.marex@denx.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Dear Puneet Saxena, > Hi Simon, > I do see only first warning on all the devices and rest of the warnings > on a few mass storage device. > > My patch fixing these warnings is not accepted. Please see below link > for further info - > > http://lists.denx.de/pipermail/u-boot/2012-March/119404.html > > IMO, these warnings spew when we expects some info e.g. device > descriptor, manf id, prod id... from the device. > The root cause of the issue is some race condition in H/w due to which, > even though we receive "STD_ASS"(Async sequence status) as 0 > still transfer descriptor token is not updated. > > Thanx & Regards, > Puneet I'd really love to accept the patch, but I can see it exposes even worse issue, so I'd be really happy to fix the root cause of the problem instead of putting layers of hack-arounds on top of it. Best regards, Marek Vasut