linux-kernel - Re: [PATCHv2 5/5] mmc: sdhci-bcm2835: add sdhci quirk SDHCI_QUIRK_MULTIBLOCK_READ

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Date:	Tue, 4 Nov 2014 23:02:14 -0800
From:	Scott Branden <sbranden@...adcom.com>
To:	Stephen Warren <swarren@...dotorg.org>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	Russell King <rmk+kernel@....linux.org.uk>,
	"Peter Griffin" <peter.griffin@...aro.org>,
	Chris Ball <chris@...ntf.net>,
	"Piotr Krol" <pietrushnic@...il.com>
CC:	<linux-mmc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	Joe Perches <joe@...ches.com>,
	<linux-rpi-kernel@...ts.infradead.org>,
	Ray Jui <rjui@...adcom.com>,
	<bcm-kernel-feedback-list@...adcom.com>
Subject: Re: [PATCHv2 5/5] mmc: sdhci-bcm2835: add sdhci quirk SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12

On 14-11-04 09:00 PM, Stephen Warren wrote:
> On 10/30/2014 12:36 AM, Scott Branden wrote:
>> SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12 is missing and needed for this controller.
>
> This seems fine, although any explanation of why this quirk is needed
> would be useful.
>
I don't know who to talk to at Arasan about this.  Will try hunting 
around a little for more info as to why this is needed to have eMMC and 
SD work properly through our internal testing on other non-2835 chipset 
that shares the same SDHCI controller as 2835.
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