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[2603:6081:7b01:cbda:853:2920:f0b9:3dd6]) by smtp.gmail.com with ESMTPSA id r29sm11485240qkm.43.2021.07.25.06.43.19 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Sun, 25 Jul 2021 06:43:20 -0700 (PDT) Date: Sun, 25 Jul 2021 09:43:17 -0400 From: Tom Rini To: Merlijn Wajer Cc: u-boot@lists.denx.de, Pali =?iso-8859-1?Q?Roh=E1r?= , maemo-leste@lists.dyne.org, Ivaylo Dimitrov , Marek Vasut Subject: Re: Nokia RX51 U-Boot USB support updates? Message-ID: <20210725134317.GF9379@bill-the-cat> References: <20210713203304.GN9516@bill-the-cat> <78f4223d-edf1-1ab6-0a9d-e8ceb5d7653b@wizzup.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="nvwB+Y2gyxL5aXTF" Content-Disposition: inline In-Reply-To: <78f4223d-edf1-1ab6-0a9d-e8ceb5d7653b@wizzup.org> X-Clacks-Overhead: GNU Terry Pratchett User-Agent: Mutt/1.9.4 (2018-02-28) X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.34 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.2 at phobos.denx.de X-Virus-Status: Clean --nvwB+Y2gyxL5aXTF Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sun, Jul 25, 2021 at 12:40:13PM +0200, Merlijn Wajer wrote: > Hi Tom, >=20 > On 13/07/2021 22:33, Tom Rini wrote: > > Hey all, > >=20 > > So, the DM_USB migration deadline issue has been addressed by the series > > here: > > https://patchwork.ozlabs.org/project/uboot/list/?series=3D252793&state= =3D* > > which splits out host and gadget support from the CONFIG_USB symbol > > itself. The migration deadline was for host support, and as noted, N900 > > is gadget only. That particular issue is resolved. >=20 > Thanks a lot for doing that! >=20 > > But investigating that issue lead me to figure out some other problems, > > that I do need someone to say how will be addressed. Now that the other > > board removal series has been applied, and then with: > > https://patchwork.ozlabs.org/project/uboot/patch/20210708014348.4010-1-= trini@konsulko.com/ > > also applied (for which the maintainer is happy to take), this brings > > N900 as the last and only user of the "old" musb driver (the "new" musb > > driver is now almost 9 years old) and also the last and only user of the > > usbtty driver. > >=20 > > I suspect that moving to the "new" MUSB driver, for gadget only, and > > with that enabling DM_USB_GADGET should be a mechanical affair, so long > > as you can fit within the space constraints of the platform. I'm not > > immediately sure how hard it will be to update usbtty.c to modern gadget > > APIs. If there are size problems, then, well, we need solutions > > proposed (it's possible that some of the usb-uclass.c code is host-only > > and needs moving, but that likely won't stop gadget from needing it for > > gadget related information, to bring up a specific example). > >=20 > > It's also likely that the MUSB support needs a little further > > clean-up for supporting building as gadget-only when there's some common > > code under a host-only check. > >=20 > > What I would like is for someone to step forward and say they'll pick up > > this work. Is there an immediate deadline? No. I don't think that > > would be helpful. I'm not going to dictate how long it takes for > > someone to do the work, that's for the person doing the work to say how > > long they think it'll take. >=20 > I have a nokia serial device for the N900, which makes debugging > significantly easier. I have some experience with u-boot (not that much > with u-boot on omap though), but I imagine that Ivaylo and/or Pali can > help me if I run into problems. So I'll try to pick this up. >=20 > As for a time frame, I imagine I should be able to find some time for > this in the next couple of months. A couple of months sounds great, thanks! --=20 Tom --nvwB+Y2gyxL5aXTF Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQGzBAABCgAdFiEEGjx/cOCPqxcHgJu/FHw5/5Y0tywFAmD9anIACgkQFHw5/5Y0 tyzUgwwAll5TAIMmSRUXPxHZQHlLZ6JdNIxP3HekrZc8xfASLjObcY+I+q2YeR1D XREZnOhGcWlPcBsY4JqC3tA8Xo0kffVV6AuPs1qunPZ+YZPBd5PjljJyCu0nauNI rTm4gfLvxn21w6rd/6pblc6+GpfOwNLa9AkCLyBBDKVxmmie+hGUBo1sJwSn7h3I 88Je43rr7TQYBPNdBs2gjQXkj0C5KqtU1FT6161MaXtwcu5IQE4hZuVauPqGv3oP 6tyY6j1BxWhQ5GHxagcpa+I5tkek9+6Xu+ltMP1xhyjD1KWQtAJZVvXf/US8sfDA nJQ4prTofSOA/FS8/G6aVnBDc5hkHcbXcML8ITcB17wLNn5LwNcuds0S5E/nml8Z T6zJzSv883tYHGbRyfCF2Xn9eFFeIzikOWHQeKnQXEEdN2wmvSXExKXzZ6zHAoNS eDIpPola52kJrSagVIqWq3ICbAjW8VgG+QbCL3rlSqybT+aXMIRvW0SZv2+GQhgn vPSuxRY+ =MmgJ -----END PGP SIGNATURE----- --nvwB+Y2gyxL5aXTF--