From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Machek Subject: Re: 4.13 (and probably all recent) kernels refuse to boot on one Nokia N950, work or another Date: Fri, 27 Oct 2017 12:19:05 +0200 Message-ID: <20171027101905.GA4287@amd> References: <20171025203459.GA22035@amd> <20171025212806.GA21504@atomide.com> <20171026091325.GA26929@amd> <20171026093115.4bc6ctxjx72ng7ld@earth> <20171026095734.GA10141@amd> <20171026120130.dicanunwcdmjntnb@earth> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="0F1p//8PRICkK4MW" Return-path: Content-Disposition: inline In-Reply-To: <20171026120130.dicanunwcdmjntnb@earth> Sender: linux-kernel-owner@vger.kernel.org To: Sebastian Reichel Cc: Tony Lindgren , pali.rohar@gmail.com, kernel list , linux-arm-kernel , linux-omap@vger.kernel.org, khilman@kernel.org, aaro.koskinen@iki.fi, ivo.g.dimitrov.75@gmail.com, patrikbachan@gmail.com, serge@hallyn.com, abcloriens@gmail.com, clayton@craftyguy.net, martijn@brixit.nl, sakari.ailus@linux.intel.com, filip.matijevic.pz@gmail.com List-Id: linux-omap@vger.kernel.org --0F1p//8PRICkK4MW Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi! So I got it to work; here are my notes from debugging. I put them on https://elinux.org/N950 , too. If someone knows how to fix the backlight, it would still be useful. Best regards, Pavel =09 Run your kernels with something like: # power off your phone sudo ../maemo/0xffff/src/0xFFFF -l -m kernel:arch/arm/boot/$IMG -b # plug in the phone. Your usually get an error here: Waiting for ASIC ID... Error: Invalid size of ASIC ID Error: Reading ASIC ID failed Error: No device detected ^C Hit ^c, and restart 0xFFFF. You should get Sending image... 100% [#################################################################] Done now. You should get /!\ Warning! screen now. Some bootloader versions way for ~10 seconds, some don't. Some bootloader versions power off immediately if you attempt to supply command line arguments. Watch the screen. It will go dark. If it blinks, it is a good sign. You may want to check with flashlight, maybe there's almost invisible text there. Ignore the notification LED. It seems to blink even without kernel involvem= ent. Keyboard "debug enabled" LED can be used for debugging. --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --0F1p//8PRICkK4MW Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAlnzCBkACgkQMOfwapXb+vLyUACfV5lvq1AY+SdRLi6JBfhS8ElB kwQAnizQgTnMxUWjzH2OTQ22qRwm0wYP =YlY8 -----END PGP SIGNATURE----- --0F1p//8PRICkK4MW--