[meta-freescale] [meta-fsl-arm/V2][PATCH 1/2] linux-imx_3.14.28: fix initial MMC device detection

[Eric Nelson]

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