From: "Markus Klotzbücher" <mk@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] U-Boot help request for OHCI driver with CPU cache on
Date: Thu, 15 May 2008 10:37:04 +0200 [thread overview]
Message-ID: <87fxskezf3.fsf@denx.de> (raw)
In-Reply-To: <00a901c8b644$c624a1e0$30065e0a@SHZ.ST.COM> (Ryan CHEN's message of "Thu\, 15 May 2008 12\:33\:07 +0800")
Ryan CHEN <ryan.chen@st.com> writes:
> I am porting U-Boot to a MIPS64 platform, that uses USB host controller NEC uPD720101 on PCI bus.
What CPU? What version of U-Boot are you using?
> I didn't modify anything related with USB driver, I just enabled OHCI
> in the configuration.
Please be more specific, *exactly* which USB options did you enable in
your config?
> When CPU cache is disabled, USB is perfect working.
> When CPU cache is enabled, every driver works well but not USB.
Again, what is "not working well"?
> Could you suggest me how to solve the problem?
> Is there any specific part of USB driver that requires cache handling?
None that I'm aware of, but I could imagine that enabling caches might
cause some kind of problems.
Best regards
Markus Klotzbuecher
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-0 Fax: +49-8142-66989-80 Email: office at denx.de
next prev parent reply other threads:[~2008-05-15 8:37 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-15 4:33 [U-Boot-Users] U-Boot help request for OHCI driver with CPU cache on Ryan CHEN
2008-05-15 8:37 ` Markus Klotzbücher [this message]
2008-05-15 10:14 ` Matthias Fuchs
2008-05-16 16:24 ` Markus Klotzbücher
2008-05-19 1:47 ` Ryan CHEN
2008-05-15 8:46 ` Matthias Fuchs
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