From: joerg Reisenweber <joerg-4Bgg8jF3iZdg9hUCZPvPmw@public.gmane.org>
To: Felipe Balbi <felipe.balbi-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
Cc: "Tony Lindgren" <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>,
"Pali Rohár" <pali.rohar-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
"Felipe Balbi" <balbi-l0cyMroinI0@public.gmane.org>,
"Greg Kroah-Hartman"
<gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>,
linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
"Ivaylo Dimitrov"
<ivo.g.dimitrov.75-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
"Sebastian Reichel" <sre-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
"Aaro Koskinen" <aaro.koskinen-X3B1VOXEql0@public.gmane.org>,
"Pavel Machek" <pavel-+ZI9xUNit7I@public.gmane.org>,
"Nishanth Menon" <nm-l0cyMroinI0@public.gmane.org>
Subject: Re: Nokia N900: musb is in wrong state after boot
Date: Wed, 08 Jun 2016 12:20:45 +0200 [thread overview]
Message-ID: <4684873.SkgQPQ65qP@saturn> (raw)
In-Reply-To: <87h9d49exz.fsf-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
[-- Attachment #1: Type: text/plain, Size: 957 bytes --]
On Wed 08 June 2016 13:02:00 Felipe Balbi wrote:
> Hi,
>
> Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org> writes:
> > Yeah I don't know, AFAIK we don't have a generic way to
> > force MUSB to change mode without ID pin. If you have figured
> #define MUSB_TEST_FORCE_HOST 0x80
>
> Can someone confirm on MUSB's docs (and actual running system) that this
> does what's supposed to do?
(disclaimer: all IIRC) Alas it doesn't, at least for the MentorGraphics MUSB
in OMAP3.
We use MUSB_TEST_FORCE_HOST in the H-E-N N900 hostmode hack
(http://talk.maemo.org/showthread.php?p=696115) and it's really just a test
thing that doesn't support full hostmode as we know it.
There is definitely no other way to force the state machine in MUSB core into
hostmode, than the "ID pin grounded" message from PHY via ULPI bus up to the
MUSB, whether it's real or *sw-triggered by a command to PHY*.
Shame on the MUSB core design for this.
/jOERG
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next prev parent reply other threads:[~2016-06-08 10:20 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-09 15:16 Nokia N900: musb is in wrong state after boot Pali Rohár
2016-01-19 20:33 ` Tony Lindgren
2016-01-21 8:40 ` Pali Rohár
2016-01-21 9:57 ` Ivaylo Dimitrov
2016-01-21 10:23 ` Pali Rohár
2016-01-21 10:27 ` Ivaylo Dimitrov
2016-01-21 10:29 ` joerg Reisenweber
2016-01-21 17:41 ` Tony Lindgren
2016-01-21 18:44 ` joerg Reisenweber
2016-01-21 19:21 ` Tony Lindgren
2016-01-21 19:34 ` joerg Reisenweber
2016-01-21 20:30 ` Tony Lindgren
2016-01-26 14:34 ` Pali Rohár
2016-01-26 17:26 ` Tony Lindgren
2016-02-21 11:12 ` Pali Rohár
2016-02-22 7:31 ` Felipe Balbi
2016-02-22 8:34 ` Pali Rohár
2016-02-22 8:54 ` Felipe Balbi
2016-02-22 8:54 ` Felipe Balbi
2016-02-22 15:36 ` Bin Liu
2016-02-22 15:49 ` Adam Ford
2016-01-23 12:57 ` Pali Rohár
2016-05-29 10:38 ` Pali Rohár
2016-06-07 12:50 ` Pali Rohár
2016-06-08 9:53 ` Tony Lindgren
2016-06-08 10:02 ` Felipe Balbi
2016-06-08 10:19 ` Pali Rohár
[not found] ` <87h9d49exz.fsf-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2016-06-08 10:20 ` joerg Reisenweber [this message]
2016-06-08 12:04 ` Sergei Shtylyov
[not found] ` <71cb45ec-a269-d510-df34-eb6eaa781da8-M4DtvfQ/ZS1MRgGoP+s0PdBPR1lH4CV8@public.gmane.org>
2016-06-08 12:18 ` joerg Reisenweber
2016-06-08 12:32 ` Sergei Shtylyov
2016-06-09 21:09 ` Bin Liu
2016-06-09 20:58 ` Bin Liu
2016-06-09 21:25 ` joerg Reisenweber
2016-06-10 15:08 ` Bin Liu
2016-06-10 15:23 ` joerg Reisenweber
2016-06-10 15:59 ` Bin Liu
2016-06-10 16:15 ` joerg Reisenweber
2016-06-10 17:04 ` Nishanth Menon
[not found] ` <575AF32B.2090705-l0cyMroinI0@public.gmane.org>
2016-06-10 17:21 ` joerg Reisenweber
2016-06-10 17:37 ` Bin Liu
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