From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751605AbdA0V1t (ORCPT ); Fri, 27 Jan 2017 16:27:49 -0500 Received: from mail.free-electrons.com ([62.4.15.54]:37546 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751075AbdA0V1J (ORCPT ); Fri, 27 Jan 2017 16:27:09 -0500 Date: Fri, 27 Jan 2017 22:26:11 +0100 From: Maxime Ripard To: Florian Vaussard Cc: Chen-Yu Tsai , Ulf Hansson , devicetree@vger.kernel.org, Andre Przywara , linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, Rob Herring , linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH v4 10/13] arm64: allwinner: a64: Increase the MMC max frequency Message-ID: <20170127212611.rn2nr4fihshud2qg@lukather> References: <6c6bf169-4b2e-6b55-54db-d21da73a8f6e@heig-vd.ch> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="t5423czn5p4zwsaa" Content-Disposition: inline In-Reply-To: <6c6bf169-4b2e-6b55-54db-d21da73a8f6e@heig-vd.ch> User-Agent: Mutt/1.6.2-neo (2016-08-21) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --t5423czn5p4zwsaa Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Jan 27, 2017 at 11:29:53AM +0100, Florian Vaussard wrote: > Hi Maxime, >=20 > On 01/26/2017 10:06 AM, Maxime Ripard wrote: > > The eMMC controller seem to have a maximum frequency of 200MHz, while t= he > > regular MMC controllers are capped at 150MHz. > >=20 > > Since older SoCs cannot go that high, we cannot change the default maxi= mum > > frequency, but fortunately for us we have a property for that in the DT. > >=20 > > This also has the side effect of allowing to use the MMC HS200 and SD > > SDR104 modes for the boards that support it (with either 1.2v or 1.8v I= Os). > >=20 > > Signed-off-by: Maxime Ripard > >=20 > > arm64: allwinner: a64: Limit MMC0 and MMC1 rates to 150MHz > >=20 > > Trying to set the bus to 200MHz on MMC1 when doing SDIO is failing. > > Allwinner sets the maximum for this bus to 150MHz, so enforce that limi= t. > >=20 > > This hasn't been tested with MMC0, but the documented limit is the same, > > and I expect the behaviour to be the same. > >=20 > > Signed-off-by: Maxime Ripard >=20 > I suspect that you are trying to increase your number of Signed-off-by ta= gs by > using unfair means :) Otherwise the squashed commit message is probably w= orth > some cleaning. /me hides in a corner... The first commit log is the right one, I'll remove the second. Thanks! Maxime --=20 Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com --t5423czn5p4zwsaa Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIcBAEBCAAGBQJYi7ruAAoJEBx+YmzsjxAgpnsP/AoyyT0CGp7QhGPXcNzl3euw TPJIFAmnm1ejtCHKUViGbr6cv4FfLzc6CrYwWnAFQOjSqzqh+wktOyULmO15RsfR v75sFR9CTP0HUntCUuSnXN9Bzn4ls5/+m8lYDiViPAKt6Vp7oN4g8DGEPVQLYoN0 4CBRhHOtrY8cofNOu/zGJLaccYxRpaNVQV2d+QJPxss12e8sJyr6HAH8Vtew/YaC Dm/s219N+QgRDSaVDZ6Q6+7gOo9/mDL3lt1jcgg0JLCYSZW1gvIg0xQ/SGDLiEsz nXSpshsLBPWKha9cXXtSKPns7s0PYepNLQPSzEn3EezxQLnJ4OgswTX/b485uxBT dmGFmDOe6sRIgojyRO7Uq7EKDA01/vbi6H4LjIt0hCdTICI9Lr3t3+xOPfO1pG93 dgqL2DncWowx0lRSkoVo0//GN6RZ2rH0Zs+Vi1Qi95mcdvU9kb4EV6cFGM58wF7L QmvcOmV2DLCBiGIxMys43wpNUQYyU1G1n6rGmOgz42u7vZicbhVbwJb1ixUgyjD+ ROZAB9FrReZXAgWmwFxCAx6GVV7EAf0xPWAk6Oym5x6aLnwgVRxZRq/uv2QF9bDn PmKtykRhiU4ZD1zvY4e1Y5uXgWqzzbTfeSErcOR0IMRUeMLFLKUKJL9LHxXIX72L zIDYNTprd4NrfFNtG2YO =Jnh2 -----END PGP SIGNATURE----- --t5423czn5p4zwsaa--