From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ilya Yanok Date: Fri, 11 Nov 2011 04:44:05 +0400 Subject: [U-Boot] [PATCH 13/14] ehci-omap: driver for EHCI host on OMAP3 In-Reply-To: <4EB109DB.2040803@compulab.co.il> References: <1320189368-9763-1-git-send-email-yanok@emcraft.com> <1320189368-9763-14-git-send-email-yanok@emcraft.com> <4EB109DB.2040803@compulab.co.il> Message-ID: <4EBC6FD5.30404@emcraft.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi Igor, On 02.11.2011 13:14, Igor Grinberg wrote: >> Please note that I wasn't able to test this patch on Beagle. Testers >> are welcome! Also we have one strange bug in our setup (mcx board, USB >> storage device, keyboard, mouse and BT stick connected through several >> hubs): while scanning the bus U-Boot fails to detect the keyboard >> (stalled endpoint while first 64-byte descriptor read) and after that >> the keyboard can't be detected even in Linux until power off/on. >> >> Enabling DEBUG in common/usb.c makes this bug go away. > Sounds like kind of timing problem? > Have you tried using a delay in places where debug is used? Yes, increasing the delay after port reset from 200ms to 260ms does help. Thanks for your comments, I've addressed them and just posted the updated version. Regards, Ilya.