Re: Nokia N900: musb is in wrong state after boot

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On Wednesday 08 June 2016 12:02:00 Felipe Balbi wrote:
> Hi,
> 
> Tony Lindgren <tony@xxxxxxxxxxx> writes:
> > * Pali Rohár <pali.rohar@xxxxxxxxx> [160607 05:53]:
> >> > Tony, what do you think about that patch?
> >> 
> >> Tony, PING
> > 
> > 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
> > something generic for that which does not actually tinker with
> > the PHY registers directly, that should be the generic
> > musb_set_mode() that we've been wondering about for years.
> 
> #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?

Maybe this can help you:

https://garage.maemo.org/plugins/ggit/browse.php/?p=kernel-power;a=blob;f=kernel-power-2.6.28/debian/patches/usbhostmode.diff

Patch for 2.6.28 omap1 kernel which adds usb host mode support for Nokia
N900. Look for MUSB_TESTMODE, MUSB_TEST_FORCE_HOST is called together
with MUSB_TEST_FORCE_FS or MUSB_TEST_FORCE_HS (line 355).

-- 
Pali Rohár
pali.rohar@xxxxxxxxx

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