[meta-freescale] R: Imx53 sd card read write timing

[Daiane Angolini]

On Thu, Oct 31, 2013 at 1:20 PM, Simone <cjb.sw.nospam at gmail.com> wrote:
> Hello Daiane,
> you are my lifeline...
>
> My kernel is the linux-fsl (linux-2.6.35.3) with some changes made for
> configure the GPIOs and UARTs in our board (in mx53_loco.c)
> The bootloader I'm using is U-Boot 2013.10-rc3

Perfect!

Only because I don´t remember if it´s applied or not on this version,
please use this patch
http://u-boot.10912.n7.nabble.com/PATCH-ARM-mx5-Enable-L2-cache-td164390.html

Daiane

>
> Really I don’t know if the L2 cache is enabled or not.
> How I can check this?
>
> Regards
> Simone
>
>
>
>
> -----Messaggio originale-----
> Da: Daiane Angolini [mailto:daiane.list at gmail.com]
> Inviato: giovedì 31 ottobre 2013 15:40
> A: Simone
> Cc: meta-freescale at yoctoproject.org
> Oggetto: Re: [meta-freescale] R: Imx53 sd card read write timing
>
> On Thu, Oct 31, 2013 at 12:35 PM, Simone <cjb.sw.nospam at gmail.com> wrote:
>> Nobody can help me?
>>
>
> I don´t know your kernel. And I´m not sure which u-boot you´re using.
> It may be anything!
>
> But, the only thing that came to my mind is L2 cache enabled or not.
>
> Do you know if you have enabled L2 cache?
>
>
> Daiane
>
>> Simone
>>
>>
>> -----Messaggio originale-----
>> Da: Simone [mailto:cjb.sw.nospam at gmail.com]
>> Inviato: mercoledì 30 ottobre 2013 20:22
>> A: <meta-freescale at yoctoproject.org>
>> Oggetto: Imx53 sd card read write timing
>>
>> Dear all,
>> I've finished today to port our changes from the old FSL kernel we
>> used
>> (2011 version, v11.05) for our board based on imx53qsb.
>>
>> Everything is working fine now, using the FSL kernel from Master
>> branch, except one thing.
>> Compared to the previous (very old) version of the kernel, we noted
>> that the uSD card read/write timings are a lot more slower than before
>> (also the system kernel loading, seems two times than before)
>>
>> Now i really don't know where to point my finger first.
>> Maybe something inserted in the sdhc driver? Or the journaled filesystem?
>>
>> Really i don't know.
>>
>> Does someone have faced a similar problem in the past?
>>
>> Thank you so much
>> My best regards
>> Simone
>>
>>
>>
>>
>>
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>