On Wednesday, January 13, 2016 at 04:18:43 PM, Chin Liang See wrote: > On Wed, 2016-01-13 at 03:58 +0100, Marek Vasut wrote: > > On Tuesday, January 05, 2016 at 05:16:05 PM, Marek Vasut wrote: > > > On Tuesday, January 05, 2016 at 04:51:47 PM, Chin Liang See wrote: > > > > On Tue, 2016-01-05 at 15:36 +0100, Marek Vasut wrote: > > > > > On Tuesday, January 05, 2016 at 06:00:04 AM, Chin Liang See > > > > > > > > > > wrote: > > > > > > Per DesignWare USB OTG databook, driver should retry up to > > > > > > 3 times when transaction error (hcint.xacterr) happen. But > > > > > > the 3 times doesn't count when the response is nack > > > > > > (hcint.nak) or frame overrun (hcint.frmoverun) > > > > > > > > > > > > This patch solved the enumeration error as spotted at socfpga > > > > > > cyclone5_socdk when plugging in certain pendrive. > > > > > > > > > > > > Signed-off-by: Chin Liang See <cl...@altera.com> > > > > > > Cc: Marek Vasut <ma...@denx.de> > > > > > > Cc: Dinh Nguyen <dingu...@opensource.altera.com> > > > > > > Cc: Dinh Nguyen <dinh.li...@gmail.com> > > > > > > Cc: Pavel Machek <pa...@denx.de> > > > > > > Cc: Oleksandr Tymoshenko <go...@bluezbox.com> > > > > > > Cc: Stephen Warren <swar...@wwwdotorg.org> > > > > > > Cc: Alexander Stein <alexander...@web.de> > > > > > > Cc: Peter Griffin <peter.grif...@linaro.org> > > > > > > > > > > I applied this change on top of u-boot-socfpga/master and > > > > > tested it > > > > > on > > > > > SoCFPGA CycloneV SoCDK with "Sandisk cruzer force" stick. The > > > > > board > > > > > gets > > > > > completely stuck if I have dcache ENABLED and perform 'usb > > > > > reset'. > > > > > This > > > > > > > > > patch is: > > > > Thanks Marek for testing. I managed to find a SanDisk Cruzer > > > > Blade and > > > > notice the same fail behaviours as yours. FYI, note that this > > > > patch > > > > works well with other 3 pendrive that I have. > > > > > > > > With SanDisk, the dwc2 driver was timed out as hcint.xfercomp and > > > > chhltd never get set even after 1s. It keep retrying endlessly > > > > due to > > > > miss handling for the ETIMEDOUT within this patch. > > > > > > > > In short, the retry doesn't work for SanDisk but the dcache > > > > disable > > > > works. Need to figure out more what cause the failure. > > > > > > Excellent, I have one of those too (I bought the entire lineup of > > > these > > > sandisk sticks at one point ;-) ) > > > > Hi, any news on the SoCFPGA USB/QSPI problem investigation? Thanks! > > I am still troubleshooting it. I played with few configuration within > L3 but not helping. This including avoiding multiple outstanding > transaction and security (allow both secure and non secure).
Yeah > But all these issue will gone once dcache is off. I believe need to > visit the MMU table. I was there already ;-) But given enough eyeballs, are bugs are shallow. Best regards, _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
