From mboxrd@z Thu Jan 1 00:00:00 1970 From: Scott Branden Subject: Re: [PATCH 4/5 RFC] mmc: sdhci-iproc: add bcm2835 support Date: Tue, 19 Jan 2016 11:47:26 -0800 Message-ID: <569E92CE.8060204@broadcom.com> References: <1453042744-16196-1-git-send-email-stefan.wahren@i2se.com> <1453042744-16196-5-git-send-email-stefan.wahren@i2se.com> <569D5D69.9000003@broadcom.com> <237859241.191026.18ea8ff0-3c4b-4fe9-876a-992ca235d960.open-xchange@email.1und1.de> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <237859241.191026.18ea8ff0-3c4b-4fe9-876a-992ca235d960.open-xchange@email.1und1.de> Sender: linux-mmc-owner@vger.kernel.org To: Stefan Wahren , Ray Jui , Lee Jones , Eric Anholt , Stephen Warren , Jon Mason Cc: kernel@martin.sperl.org, Rob Herring , linux-mmc@vger.kernel.org, bcm-kernel-feedback-list@broadcom.com, Arnd Bergmann , Mark Rutland , Ulf Hansson , linux-rpi-kernel@lists.infradead.org, devicetree@vger.kernel.org List-Id: devicetree@vger.kernel.org Hi Stefan, On 16-01-19 11:25 AM, Stefan Wahren wrote: > Hi Scott, > >> Scott Branden hat am 18. Januar 2016 um 22:47 >> geschrieben: >> >> >> Hi Stefan, >> >> The caps likely need to be looked at in greater detail. Some comments >> inline. > > yes i'm hopeful that someone from Broadcom knows more about the capabilities. > This patch only copies them from the other driver, because i don't want to > introduce new issues. This patch can go in as is and we can have another patch when more accurate capabilities are determined. If/when I have time I can go and deduce what the capability settings should be on BCM2835. I should be revisiting this IP for other reasons in the next month or so and will try to look into it. > > Unfortunately the BCM2835 datasheet refers only to a non-public Asaran document > ( SD3.0_Host_AHB_eMMC4.4_Usersguide_ver5.9_jan11_10.pdf ). Yes, if Arasan allowed such document to be published that would help... > > Best regards > Stefan > > [1] - > https://www.raspberrypi.org/wp-content/uploads/2012/02/BCM2835-ARM-Peripherals.pdf > Regards, Scott