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From: Eric Nelson <eric.nelson@boundarydevices.com>
To: "Andreas Müller" <schnitzeltony@googlemail.com>,
	meta-freescale@yoctoproject.org
Cc: Troy <troy.kisky@boundarydevices.com>
Subject: Re: [meta-fsl-arm/V2][PATCH 1/2] linux-imx_3.14.28: fix initial MMC device detection
Date: Mon, 08 Jun 2015 09:19:00 -0700	[thread overview]
Message-ID: <5575C074.4040902@boundarydevices.com> (raw)
In-Reply-To: <1433767686-4472-2-git-send-email-schnitzeltony@googlemail.com>

Hi Andreas,

On 06/08/2015 05:48 AM, Andreas Müller wrote:
> On Variscite Varsom we have three devices connected to MMC
> 
> * MMC1: eMMC
> * MMC2: SDCard
> * MMC3: Wifi
> 
> Without this patch only the first device was detected properly.
> I found two workarounds which can be removed by this patch:
> 
> 1. Variscite: booting from SDCard made possible by renumbering MMC devices [1].
> 2. BoundaryDevices: Add workqueues for each mmc_host [2]. This had been tested
>    here too but causes crashing sdcard for huge storage traffic.
> 
> [1] https://github.com/varigit/linux-2.6-imx/blob/imx_3.10.53_1.1.0_ga_var01/arch/arm/boot/dts/imx6qdl.dtsi / Line 879
> [2] https://github.com/boundarydevices/linux-imx6/commit/1d40159a995a298f16901bfb14ae3e0294c65691
> 

Thanks very much for the note.


Eric


  reply	other threads:[~2015-06-08 16:19 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-06-08 12:48 [meta-fsl-arm/V2][PATCH 0/2] linux-imx-3.14.28 important bugfixes by applying mainline patches Andreas Müller
2015-06-08 12:48 ` [meta-fsl-arm/V2][PATCH 1/2] linux-imx_3.14.28: fix initial MMC device detection Andreas Müller
2015-06-08 16:19   ` Eric Nelson [this message]
2015-06-08 16:29     ` Gary Thomas
2015-06-08 19:48       ` Andreas Müller
2015-06-08 12:48 ` [meta-fsl-arm/V2][PATCH 2/2] linux-imx-3.14.28: FEC: fix garbage send for huge data blocks Andreas Müller

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