Imx53 sd card read write timing

Imx53 sd card read write timing

[Simone]

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

Re: Imx53 sd card read write timing

[Simone]

Nobody can help me?

Simone


-----Messaggio originale-----
Da: Simone [mailto:cjb.sw.nospam@gmail.com] 
Inviato: mercoledì 30 ottobre 2013 20:22
A: <meta-freescale@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

Re: Imx53 sd card read write timing

[Daiane Angolini]

On Thu, Oct 31, 2013 at 12:35 PM, Simone <cjb.sw.nospam@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@gmail.com]
> Inviato: mercoledì 30 ottobre 2013 20:22
> A: <meta-freescale@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
>
>
>
>
>
> _______________________________________________
> meta-freescale mailing list
> meta-freescale@yoctoproject.org
> https://lists.yoctoproject.org/listinfo/meta-freescale

Re: Imx53 sd card read write timing

[Simone]

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

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@gmail.com] 
Inviato: giovedì 31 ottobre 2013 15:40
A: Simone
Cc: meta-freescale@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@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@gmail.com]
> Inviato: mercoledì 30 ottobre 2013 20:22
> A: <meta-freescale@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
>
>
>
>
>
> _______________________________________________
> meta-freescale mailing list
> meta-freescale@yoctoproject.org
> https://lists.yoctoproject.org/listinfo/meta-freescale

Re: Imx53 sd card read write timing

[Daiane Angolini]

On Thu, Oct 31, 2013 at 1:20 PM, Simone <cjb.sw.nospam@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@gmail.com]
> Inviato: giovedì 31 ottobre 2013 15:40
> A: Simone
> Cc: meta-freescale@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@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@gmail.com]
>> Inviato: mercoledì 30 ottobre 2013 20:22
>> A: <meta-freescale@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
>>
>>
>>
>>
>>
>> _______________________________________________
>> meta-freescale mailing list
>> meta-freescale@yoctoproject.org
>> https://lists.yoctoproject.org/listinfo/meta-freescale
>

Re: Imx53 sd card read write timing

[Otavio Salvador]

On Thu, Oct 31, 2013 at 2:11 PM, Daiane Angolini <daiane.list@gmail.com> wrote:
> On Thu, Oct 31, 2013 at 1:20 PM, Simone <cjb.sw.nospam@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

It is not; if Simone confirms it helps I can apply it in our branch.

-- 
Otavio Salvador                             O.S. Systems
http://www.ossystems.com.br        http://code.ossystems.com.br
Mobile: +55 (53) 9981-7854            Mobile: +1 (347) 903-9750

Re: Imx53 sd card read write timing

[Daiane Angolini]

On Thu, Oct 31, 2013 at 2:21 PM, Otavio Salvador
<otavio@ossystems.com.br> wrote:
> On Thu, Oct 31, 2013 at 2:11 PM, Daiane Angolini <daiane.list@gmail.com> wrote:
>> On Thu, Oct 31, 2013 at 1:20 PM, Simone <cjb.sw.nospam@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
>
> It is not; if Simone confirms it helps I can apply it in our branch.

Well, this particular decision should be for Fabio.

I´m not sure if the patch is supposed to be applied in 2013.10 or only
next .....



Daiane

>
> --
> Otavio Salvador                             O.S. Systems
> http://www.ossystems.com.br        http://code.ossystems.com.br
> Mobile: +55 (53) 9981-7854            Mobile: +1 (347) 903-9750

Re: Imx53 sd card read write timing

[Otavio Salvador]

On Thu, Oct 31, 2013 at 2:35 PM, Daiane Angolini <daiane.list@gmail.com> wrote:
> On Thu, Oct 31, 2013 at 2:21 PM, Otavio Salvador
> <otavio@ossystems.com.br> wrote:
>> On Thu, Oct 31, 2013 at 2:11 PM, Daiane Angolini <daiane.list@gmail.com> wrote:
>>> On Thu, Oct 31, 2013 at 1:20 PM, Simone <cjb.sw.nospam@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
>>
>> It is not; if Simone confirms it helps I can apply it in our branch.
>
> Well, this particular decision should be for Fabio.
>
> I´m not sure if the patch is supposed to be applied in 2013.10 or only
> next .....

It is queued for 2014.01 (as Stefano just confirmed it is going to be
applied) so if Fabio agrees, we can apply it in our branch.

-- 
Otavio Salvador                             O.S. Systems
http://www.ossystems.com.br        http://code.ossystems.com.br
Mobile: +55 (53) 9981-7854            Mobile: +1 (347) 903-9750

Re: Imx53 sd card read write timing

[Fabio Estevam]

Hi Otavio,

On Thu, Oct 31, 2013 at 2:37 PM, Otavio Salvador
<otavio@ossystems.com.br> wrote:

> It is queued for 2014.01 (as Stefano just confirmed it is going to be
> applied) so if Fabio agrees, we can apply it in our branch.

Yes, enabling L2 cache will help overall system performance, so I am
fine if this gets applied into meta-fsl.

Thanks,

Fabio Estevam

Re: Imx53 sd card read write timing

[Otavio Salvador]

Hello folks,

On Thu, Oct 31, 2013 at 2:49 PM, Fabio Estevam <festevam@gmail.com> wrote:
> On Thu, Oct 31, 2013 at 2:37 PM, Otavio Salvador
> <otavio@ossystems.com.br> wrote:
>
>> It is queued for 2014.01 (as Stefano just confirmed it is going to be
>> applied) so if Fabio agrees, we can apply it in our branch.
>
> Yes, enabling L2 cache will help overall system performance, so I am
> fine if this gets applied into meta-fsl.

Patch sent.

Simone, please give it a test.

-- 
Otavio Salvador                             O.S. Systems
http://www.ossystems.com.br        http://code.ossystems.com.br
Mobile: +55 (53) 9981-7854            Mobile: +1 (347) 903-9750

Re: Imx53 sd card read write timing

[Simone]

Yes I saw,
Now I'm ready to test it and then I will be able to report the results.

Thank you all guys!
Simone


-----Messaggio originale-----
Da: otavio.salvador@gmail.com [mailto:otavio.salvador@gmail.com] Per conto
di Otavio Salvador
Inviato: giovedì 31 ottobre 2013 17:56
A: Fabio Estevam
Cc: Daiane Angolini; Simone; meta-freescale@yoctoproject.org
Oggetto: Re: [meta-freescale] R: Imx53 sd card read write timing

Hello folks,

On Thu, Oct 31, 2013 at 2:49 PM, Fabio Estevam <festevam@gmail.com> wrote:
> On Thu, Oct 31, 2013 at 2:37 PM, Otavio Salvador 
> <otavio@ossystems.com.br> wrote:
>
>> It is queued for 2014.01 (as Stefano just confirmed it is going to be
>> applied) so if Fabio agrees, we can apply it in our branch.
>
> Yes, enabling L2 cache will help overall system performance, so I am 
> fine if this gets applied into meta-fsl.

Patch sent.

Simone, please give it a test.

-- 
Otavio Salvador                             O.S. Systems
http://www.ossystems.com.br        http://code.ossystems.com.br
Mobile: +55 (53) 9981-7854            Mobile: +1 (347) 903-9750

Re: Imx53 sd card read write timing

[Simone]

Hello All,
only one thing, I don't know how to flash only the u-boot in the sdcard..
There is a way or I have to flash all the xxx.sdcard with dd command?




-----Messaggio originale-----
Da: otavio.salvador@gmail.com [mailto:otavio.salvador@gmail.com] Per conto
di Otavio Salvador
Inviato: giovedì 31 ottobre 2013 17:56
A: Fabio Estevam
Cc: Daiane Angolini; Simone; meta-freescale@yoctoproject.org
Oggetto: Re: [meta-freescale] R: Imx53 sd card read write timing

Hello folks,

On Thu, Oct 31, 2013 at 2:49 PM, Fabio Estevam <festevam@gmail.com> wrote:
> On Thu, Oct 31, 2013 at 2:37 PM, Otavio Salvador 
> <otavio@ossystems.com.br> wrote:
>
>> It is queued for 2014.01 (as Stefano just confirmed it is going to be
>> applied) so if Fabio agrees, we can apply it in our branch.
>
> Yes, enabling L2 cache will help overall system performance, so I am 
> fine if this gets applied into meta-fsl.

Patch sent.

Simone, please give it a test.

-- 
Otavio Salvador                             O.S. Systems
http://www.ossystems.com.br        http://code.ossystems.com.br
Mobile: +55 (53) 9981-7854            Mobile: +1 (347) 903-9750

Re: Imx53 sd card read write timing

[Otavio Salvador]

On Thu, Oct 31, 2013 at 3:13 PM, Simone <cjb.sw.nospam@gmail.com> wrote:
> only one thing, I don't know how to flash only the u-boot in the sdcard..
> There is a way or I have to flash all the xxx.sdcard with dd command?

dd if=u-boot.imx of=/dev/<mmcblock> seek=2 bs=512

-- 
Otavio Salvador                             O.S. Systems
http://www.ossystems.com.br        http://code.ossystems.com.br
Mobile: +55 (53) 9981-7854            Mobile: +1 (347) 903-9750

Re: Imx53 sd card read write timing

[Simone]

Dear all,
the patch work great!

Now all my system work 2x times faster than before (both kernel loading time
and application working speed) !

I could never solve without your help

Thanks so much to everybody!
Regards
Simone



-----Messaggio originale-----
Da: otavio.salvador@gmail.com [mailto:otavio.salvador@gmail.com] Per conto
di Otavio Salvador
Inviato: giovedì 31 ottobre 2013 18:18
A: Simone
Cc: Fabio Estevam; Daiane Angolini; meta-freescale@yoctoproject.org
Oggetto: Re: [meta-freescale] R: Imx53 sd card read write timing

On Thu, Oct 31, 2013 at 3:13 PM, Simone <cjb.sw.nospam@gmail.com> wrote:
> only one thing, I don't know how to flash only the u-boot in the sdcard..
> There is a way or I have to flash all the xxx.sdcard with dd command?

dd if=u-boot.imx of=/dev/<mmcblock> seek=2 bs=512

-- 
Otavio Salvador                             O.S. Systems
http://www.ossystems.com.br        http://code.ossystems.com.br
Mobile: +55 (53) 9981-7854            Mobile: +1 (347) 903-9750

Re: Imx53 sd card read write timing

[Otavio Salvador]

On Thu, Oct 31, 2013 at 4:08 PM, Simone <cjb.sw.nospam@gmail.com> wrote:
> Dear all,
> the patch work great!
>
> Now all my system work 2x times faster than before (both kernel loading time
> and application working speed) !
>
> I could never solve without your help

Neat! I will apply it than.

-- 
Otavio Salvador                             O.S. Systems
http://www.ossystems.com.br        http://code.ossystems.com.br
Mobile: +55 (53) 9981-7854            Mobile: +1 (347) 903-9750

Re: Imx53 sd card read write timing

[Fabio Estevam]

Hi Simone,

On Thu, Oct 31, 2013 at 4:08 PM, Simone <cjb.sw.nospam@gmail.com> wrote:
> Dear all,
> the patch work great!
>
> Now all my system work 2x times faster than before (both kernel loading time
> and application working speed) !

This is great news.

This patch has also been applied in U-boot and it will be part of the
2014.01 release:

http://git.denx.de/?p=u-boot/u-boot-imx.git;a=commitdiff;h=4867b634b7c0e5ede258b4998fa4b2710e7daacf

Regards,

Fabio Estevam

Re: Imx53 sd card read write timing

[Daiane Angolini]

On 10/31/2013 04:08 PM, Simone wrote:
> Dear all,
> the patch work great!
>
> Now all my system work 2x times faster than before (both kernel loading time
> and application working speed) !

Nice to hear that!

When you say "2x faster" it's from your perception? Or you do have numbers?


Daiane
>
> I could never solve without your help
>
> Thanks so much to everybody!
> Regards
> Simone
>
>
>
> -----Messaggio originale-----
> Da: otavio.salvador@gmail.com [mailto:otavio.salvador@gmail.com] Per conto
> di Otavio Salvador
> Inviato: giovedì 31 ottobre 2013 18:18
> A: Simone
> Cc: Fabio Estevam; Daiane Angolini; meta-freescale@yoctoproject.org
> Oggetto: Re: [meta-freescale] R: Imx53 sd card read write timing
>
> On Thu, Oct 31, 2013 at 3:13 PM, Simone <cjb.sw.nospam@gmail.com> wrote:
>> only one thing, I don't know how to flash only the u-boot in the sdcard..
>> There is a way or I have to flash all the xxx.sdcard with dd command?
>
> dd if=u-boot.imx of=/dev/<mmcblock> seek=2 bs=512
>

Re: Imx53 sd card read write timing

[Simone]

Hi Daiane,
Sure is my perception, but now the kernel loading takes about 7~8 seconds from power on, instead of 15~17 seconds that was before.

My GUI application (written in qt & QML)  is really much more faster now than without L2 cache enabled. 

It's simply wonderful!

If you need more informations, please ask me, and then I will be happy to do some tests for you.

Regards
Simone




> Il giorno 01/nov/2013, alle ore 14:05, Daiane Angolini <daiane.angolini@freescale.com> ha scritto:
> 
>> On 10/31/2013 04:08 PM, Simone wrote:
>> Dear all,
>> the patch work great!
>> 
>> Now all my system work 2x times faster than before (both kernel loading time
>> and application working speed) !
> 
> Nice to hear that!
> 
> When you say "2x faster" it's from your perception? Or you do have numbers?
> 
> 
> Daiane
>> 
>> I could never solve without your help
>> 
>> Thanks so much to everybody!
>> Regards
>> Simone
>> 
>> 
>> 
>> -----Messaggio originale-----
>> Da: otavio.salvador@gmail.com [mailto:otavio.salvador@gmail.com] Per conto
>> di Otavio Salvador
>> Inviato: giovedì 31 ottobre 2013 18:18
>> A: Simone
>> Cc: Fabio Estevam; Daiane Angolini; meta-freescale@yoctoproject.org
>> Oggetto: Re: [meta-freescale] R: Imx53 sd card read write timing
>> 
>>> On Thu, Oct 31, 2013 at 3:13 PM, Simone <cjb.sw.nospam@gmail.com> wrote:
>>> only one thing, I don't know how to flash only the u-boot in the sdcard..
>>> There is a way or I have to flash all the xxx.sdcard with dd command?
>> 
>> dd if=u-boot.imx of=/dev/<mmcblock> seek=2 bs=512
> 
>