RE: Re: [PATCH 1/2] patch adds EHCI platform specific data to OMAP34xx board file

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



> > Paul confirmed that there are still issues with clock framework and
> DPLL5
> > enabling.
> > So not to have a dependency on Clock framework, I use the attached
> > ALL-CLOCK-ENABLE patch.
> > You can do the same for now.
> 
> Thanks,
> 
> This will help me a lot. In any case, USBHOST_L4_ICLK has changed from
> ES1.0 to ES2.0, you can confirm in the TRMs.
> I'm trying to find a way to make it work on current omap.

Felipe,

Yes, on ES2 there has been major change with respect to USB.  The old FS
block has been removed completely.  It is replaced with a multi-port
EHCI (host only).  The MUSB single (otg/host/cliet) port is still there.
Connectivity around this (options via pin mux, tll or not is somewhat
involved).

The PRCM with respect to these guys has changed.  It is documented in
the ES2 TRM.  There is a special difference TRM between ES1 and ES2
which fully highlights this.  Through your Nokia affiliations you should
have access to these.  We have a public TRM in the works, not sure when
that shows up.  Probably in a few months.

** You should have access to our TI kernel code drop, snapshots are on
our website, and up to date versions are there in CDP.  These versions
are fully working for USB.  The underlying PRCM details and changes are
fully coded.

You can use that for reference.  If you need this in a hurry or want to
spend the time, all the information in code form is already there to
make it work and has been since ES2 appeared (at the prcm anyway).

* To help understanding, we have an internal tree based on 2.6.22 where
everything works.  As development was done in advance of open source for
people who needed it last year, the implementation is different from
what is omap-git present, but it's a related elder cousin.  We also have
a tree which is in sync with latest omap-git, however, this tree
everything is not yet fully forward ported.  At any rate both are
available to you I believe, so you should be enabled to make it work.

Regards,
Richard W.

-
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Index of Archives]     [Linux Arm (vger)]     [ARM Kernel]     [ARM MSM]     [Linux Tegra]     [Linux WPAN Networking]     [Linux Wireless Networking]     [Maemo Users]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Trails]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux