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[2603:6081:7b01:cbda:8009:22e2:67e2:281e]) by smtp.gmail.com with ESMTPSA id p12sm1976701qtw.61.2021.06.16.14.20.22 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Wed, 16 Jun 2021 14:20:22 -0700 (PDT) Date: Wed, 16 Jun 2021 17:20:20 -0400 From: Tom Rini To: Pali =?iso-8859-1?Q?Roh=E1r?= Cc: Ivaylo Dimitrov , maemo-leste@lists.dyne.org, u-boot@lists.denx.de, Merlijn Wajer Subject: Re: [maemo-leste] [PATCH] arm: Remove nokia_rx51 board Message-ID: <20210616212020.GB9516@bill-the-cat> References: <20210615123436.GH9516@bill-the-cat> <5848e9c9-4dab-00cc-07dc-ffa57b9417cd@gmail.com> <20210616121008.GR9516@bill-the-cat> <20210616121313.GS9516@bill-the-cat> <20210616173702.GW9516@bill-the-cat> <20210616211213.GZ9516@bill-the-cat> <20210616211632.xxoo3vu6mlyxg5wr@pali> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="6zKUxl9r+ULyk9DO" Content-Disposition: inline In-Reply-To: <20210616211632.xxoo3vu6mlyxg5wr@pali> 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 --6zKUxl9r+ULyk9DO Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Jun 16, 2021 at 11:16:32PM +0200, Pali Roh=E1r wrote: > On Wednesday 16 June 2021 17:12:13 Tom Rini wrote: > > Wait, why is thumb disabled? That's something I'd really like to know > > why on as my first guess is there's units with old enough cores that > > have some thumb errata maybe? >=20 > IIRC we disabled at time when N900 support was merged into U-Boot (about > 10 years ago) as built binary did not work on real N900 HW. Non-thumb > build work fine. >=20 > I thought it was due to thumb errata but yesterday I was told that thumb > errata affects running system only when virtual memory and context > switches are used. And correct me if I'm wrong, but u-boot is not using > virtual memory mapping and neither multiprocessing context switches. >=20 > So it looks like that at that time (10 years ago) there was another bug > in u-boot which caused that thumb build was non-working. Thanks for explaining, yes, we should be able to enable thumb and disable EFI and see just how close things are again to the size limit. Oh, and we have things set such that the hooks to cause link time errors on size overflow are enabled here, right? --=20 Tom --6zKUxl9r+ULyk9DO Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQGzBAABCgAdFiEEGjx/cOCPqxcHgJu/FHw5/5Y0tywFAmDKaxQACgkQFHw5/5Y0 tywWfwv/aB8ptrVR4qFKsPbItydiRQngDyyZAKjtSUHcCxSJ7wtCgzYfFNmioXZR TXuMDzjRKN4gqQ8/iBf78A6iGlc2L+cs8X/MONwqV3fUeF5yzfSejVI6acDVri2w z5N2ynyiyGJQ9egGx97ksG1yDUjwprmiIqyAH6esU/GzhgrByPnQaonYgIkwn33u ivDBa9V6cpyb32R5sMcR6DkKAEpXI5vxPg/o5qOSVbNpd9+eDrx7xoXADThnH4FY uqGi0b+0ki1LicMyGr7zXRCvJzshJhULrt3SolI1S0CcScyflF1sNElLQLEFVFc3 2R+dggFdoXmucbQyTuE9ISwRIAXRbOAN4r0opJh8NwwAVhq+Oe8iq51LEiikXoFf HaLIO4aPEA6WfL3M7grITetiBskKKmD+BanrfteSZOKY3rDeHCU/kGDdiDd/5OHR POqXERMVTk3r6ePbcHrc2cl+DygnAK0qML2wT4+2ngh0EgvLFFSpCHa6Zj9YQngm LQRSs/V9 =3wxJ -----END PGP SIGNATURE----- --6zKUxl9r+ULyk9DO--