From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pali =?utf-8?q?Roh=C3=A1r?= Subject: Re: runtime check for omap-aes bus access permission (was: Re: 3.13-rc3 (commit 7ce93f3) breaks Nokia N900 DT boot) Date: Tue, 9 Sep 2014 01:45:05 +0200 Message-ID: <201409090145.05737@pali> References: <20131206213613.GA19648@earth.universe> <20131207230305.GA9103@earth.universe> <20131207232205.GS26766@atomide.com> Mime-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart3358565.NxSI2tMyoG"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Return-path: Received: from mail-wg0-f44.google.com ([74.125.82.44]:48953 "EHLO mail-wg0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753060AbaIHXpJ (ORCPT ); Mon, 8 Sep 2014 19:45:09 -0400 Received: by mail-wg0-f44.google.com with SMTP id y10so1885291wgg.15 for ; Mon, 08 Sep 2014 16:45:08 -0700 (PDT) In-Reply-To: <20131207232205.GS26766@atomide.com> Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: Tony Lindgren Cc: linux-omap@vger.kernel.org, Aaro Koskinen , Joel Fernandes --nextPart3358565.NxSI2tMyoG Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable On Sunday 08 December 2013 00:22:06 Tony Lindgren wrote: > * Sebastian Reichel [131207 15:04]: > > On Sat, Dec 07, 2013 at 01:11:37PM -0800, Tony Lindgren wrote: > > > > I asked Pali to send me his copy of the updated NOLO > > > > bootloader, so that I can test this. I just checked the > > > > omap documentation (I only have access to the public > > > > one) and crypto related stuff is not documented for the > > > > L3_PM_READ_PERMISSION register. There are a couple of > > > > reserved bits, which may be used for this, though. > > > >=20 > > > > I also CC'd Joel Fernandes, since he worked on the > > > > driver before and may have access to the documentation. > > >=20 > > > Looks like at least the 36xx public version referenced > > > here has them: > > >=20 > > > http://www.spinics.net/lists/linux-omap/msg21857.html > > >=20 > > > I'd assume the registers are the same for 34xx since we > > > don't have them defined separately in the kernel. > >=20 > > I can't find it in the omap36xx documentation either. Maybe > > I search at the wrong position. I tried to find something > > crypto related in > >=20 > > Table 9-89. L3_PM_READ_PERMISSION_i >=20 > Hmm maybe it's done based on the address in > L3_PM_ADDR_MATCH_k? >=20 > I guess the thing to do would be to compare the register > output between the two different firmware versions. >=20 > Regards, >=20 > Tony Hello, I found some info about omap firewall: http://web.archive.org/web/20140703081349/http://droid-developers.org/wiki/= L3_firewall =2D-=20 Pali Roh=C3=A1r pali.rohar@gmail.com --nextPart3358565.NxSI2tMyoG Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iEYEABECAAYFAlQOP4EACgkQi/DJPQPkQ1KHFgCfUwc+Fti+m3w4zV8s6xoRpZfm 0y4AnRcy0/X2bTTqLg11UfuXtT1Iso8t =FqeU -----END PGP SIGNATURE----- --nextPart3358565.NxSI2tMyoG--