[U-Boot] help

[U-Boot] help

[Naveen Kumar GADDIPATI]

Hi,

I'm working for arm cortex A9 processor.Do we have any uboot source code
support for cortex A9 processor?

eMMC
Do we have any patch or source code for eMMC in uboot?

Thanks and Regards,
Naveen

[U-Boot] help

[dinny]

Hi Naveen,

Do you use a cortex A9 single core or multicore product? If you are
using a cortex A9 single core, you can have a look at omap zoom u-boot
implementation as a reference. It's based on TI's omap3430, a Cortex
A8 core. Although there should be some difference on the internal
architecture design, I don't think it makes much difference for
software implementation.

Best Regards
Dinny

On Tue, Jan 6, 2009 at 4:28 PM, Naveen Kumar GADDIPATI
<naveen.gaddipati@stnwireless.com> wrote:
> Hi,
>
> I'm working for arm cortex A9 processor.Do we have any uboot source code
> support for cortex A9 processor?
>
> eMMC
> Do we have any patch or source code for eMMC in uboot?
>
> Thanks and Regards,
> Naveen
>
> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> http://lists.denx.de/mailman/listinfo/u-boot
>



-- 
what we need is passion, chance, and companions.

[U-Boot] help

[Naveen Kumar GADDIPATI]

 
Hi dinny,

We are working on arm-cortex A9 dual core product.

Thanks and Regards,
Naveen

-----Original Message-----
From: dinny [mailto:dinny.wu at gmail.com] 
Sent: Wednesday, January 07, 2009 7:20 AM
To: Naveen Kumar GADDIPATI
Cc: u-boot at lists.denx.de
Subject: Re: [U-Boot] help

Hi Naveen,

Do you use a cortex A9 single core or multicore product? If you are using a cortex A9 single core, you can have a look at omap zoom u-boot implementation as a reference. It's based on TI's omap3430, a Cortex
A8 core. Although there should be some difference on the internal architecture design, I don't think it makes much difference for software implementation.

Best Regards
Dinny

On Tue, Jan 6, 2009 at 4:28 PM, Naveen Kumar GADDIPATI <naveen.gaddipati@stnwireless.com> wrote:
> Hi,
>
> I'm working for arm cortex A9 processor.Do we have any uboot source 
> code support for cortex A9 processor?
>
> eMMC
> Do we have any patch or source code for eMMC in uboot?
>
> Thanks and Regards,
> Naveen
>
> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> http://lists.denx.de/mailman/listinfo/u-boot
>



--
what we need is passion, chance, and companions.

[U-Boot] help

[Naveen Kumar GADDIPATI]

 
Hi dinny,

Thanks for your reply.
We are working on arm-cortex A9(single core).The product has two such single cores.
Could we start using this coretex A8 uboot source code?

Regards,
Naveen
-----Original Message-----
From: dinny [mailto:dinny.wu at gmail.com] 
Sent: Wednesday, January 07, 2009 7:20 AM
To: Naveen Kumar GADDIPATI
Cc: u-boot at lists.denx.de
Subject: Re: [U-Boot] help

Hi Naveen,

Do you use a cortex A9 single core or multicore product? If you are using a cortex A9 single core, you can have a look at omap zoom u-boot implementation as a reference. It's based on TI's omap3430, a Cortex
A8 core. Although there should be some difference on the internal architecture design, I don't think it makes much difference for software implementation.

Best Regards
Dinny

On Tue, Jan 6, 2009 at 4:28 PM, Naveen Kumar GADDIPATI <naveen.gaddipati@stnwireless.com> wrote:
> Hi,
>
> I'm working for arm cortex A9 processor.Do we have any uboot source 
> code support for cortex A9 processor?
>
> eMMC
> Do we have any patch or source code for eMMC in uboot?
>
> Thanks and Regards,
> Naveen
>
> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> http://lists.denx.de/mailman/listinfo/u-boot
>



--
what we need is passion, chance, and companions.

[U-Boot] help

[dinny]

For SoCs, it depends on how the system design intends to make use of
the two processors.

If the design intends to use them as AMP, you should run u-boot for
each processor in sequence to init their peripherals. In this case,
you can adapt u-boot deriving from the openzoom source. If as SMP, you
can run u-boot on one core and make the other core regardless for
U-Boot, and make the other working when linux boots.

Anyway, you have to read through the chapters of the SoC spec on how
the two processors are intended to co-work to make this more clear. I
can't get the SPECs, and I cannot give you more information. Denk
could give more details, for MPC85xx multi processor implementation:-)

Best Regards
Dinny

On Wed, Jan 7, 2009 at 1:27 PM, Naveen Kumar GADDIPATI
<naveen.gaddipati@stnwireless.com> wrote:
>
> Hi dinny,
>
> Thanks for your reply.
> We are working on arm-cortex A9(single core).The product has two such single cores.
> Could we start using this coretex A8 uboot source code?
>
> Regards,
> Naveen
> -----Original Message-----
> From: dinny [mailto:dinny.wu at gmail.com]
> Sent: Wednesday, January 07, 2009 7:20 AM
> To: Naveen Kumar GADDIPATI
> Cc: u-boot at lists.denx.de
> Subject: Re: [U-Boot] help
>
> Hi Naveen,
>
> Do you use a cortex A9 single core or multicore product? If you are using a cortex A9 single core, you can have a look at omap zoom u-boot implementation as a reference. It's based on TI's omap3430, a Cortex
> A8 core. Although there should be some difference on the internal architecture design, I don't think it makes much difference for software implementation.
>
> Best Regards
> Dinny
>
> On Tue, Jan 6, 2009 at 4:28 PM, Naveen Kumar GADDIPATI <naveen.gaddipati@stnwireless.com> wrote:
>> Hi,
>>
>> I'm working for arm cortex A9 processor.Do we have any uboot source
>> code support for cortex A9 processor?
>>
>> eMMC
>> Do we have any patch or source code for eMMC in uboot?
>>
>> Thanks and Regards,
>> Naveen
>>
>> _______________________________________________
>> U-Boot mailing list
>> U-Boot at lists.denx.de
>> http://lists.denx.de/mailman/listinfo/u-boot
>>
>
>
>
> --
> what we need is passion, chance, and companions.
>
>



-- 
what we need is passion, chance, and companions.

[U-Boot] help

[Naveen Kumar GADDIPATI]

Hi dinny,

At the uboot level,we will confgiure only one core to boot up the image but we use two cores.For this usecase, could we use the single cortex-A8 uboot source code?

Regards,
Naveen
-----Original Message-----
From: dinny [mailto:dinny.wu at gmail.com] 
Sent: Wednesday, January 07, 2009 2:41 PM
To: Naveen Kumar GADDIPATI
Cc: u-boot at lists.denx.de
Subject: Re: [U-Boot] help

For SoCs, it depends on how the system design intends to make use of the two processors.

If the design intends to use them as AMP, you should run u-boot for each processor in sequence to init their peripherals. In this case, you can adapt u-boot deriving from the openzoom source. If as SMP, you can run u-boot on one core and make the other core regardless for U-Boot, and make the other working when linux boots.

Anyway, you have to read through the chapters of the SoC spec on how the two processors are intended to co-work to make this more clear. I can't get the SPECs, and I cannot give you more information. Denk could give more details, for MPC85xx multi processor implementation:-)

Best Regards
Dinny

On Wed, Jan 7, 2009 at 1:27 PM, Naveen Kumar GADDIPATI <naveen.gaddipati@stnwireless.com> wrote:
>
> Hi dinny,
>
> Thanks for your reply.
> We are working on arm-cortex A9(single core).The product has two such single cores.
> Could we start using this coretex A8 uboot source code?
>
> Regards,
> Naveen
> -----Original Message-----
> From: dinny [mailto:dinny.wu at gmail.com]
> Sent: Wednesday, January 07, 2009 7:20 AM
> To: Naveen Kumar GADDIPATI
> Cc: u-boot at lists.denx.de
> Subject: Re: [U-Boot] help
>
> Hi Naveen,
>
> Do you use a cortex A9 single core or multicore product? If you are 
> using a cortex A9 single core, you can have a look at omap zoom u-boot 
> implementation as a reference. It's based on TI's omap3430, a Cortex
> A8 core. Although there should be some difference on the internal architecture design, I don't think it makes much difference for software implementation.
>
> Best Regards
> Dinny
>
> On Tue, Jan 6, 2009 at 4:28 PM, Naveen Kumar GADDIPATI <naveen.gaddipati@stnwireless.com> wrote:
>> Hi,
>>
>> I'm working for arm cortex A9 processor.Do we have any uboot source 
>> code support for cortex A9 processor?
>>
>> eMMC
>> Do we have any patch or source code for eMMC in uboot?
>>
>> Thanks and Regards,
>> Naveen
>>
>> _______________________________________________
>> U-Boot mailing list
>> U-Boot at lists.denx.de
>> http://lists.denx.de/mailman/listinfo/u-boot
>>
>
>
>
> --
> what we need is passion, chance, and companions.
>
>



--
what we need is passion, chance, and companions.

[U-Boot] help

[dinny]

[U-Boot] help

[Wolfgang Denk]

Dear dinny,

In message <5e4d16e90901070137j5695a0e2ye50b3f558c9efc73@mail.gmail.com> you wrote:
> From the cpu aspect, it should be the most familiar one with your
> CPUs. And try to learn more on your on-board peripherals and devices.
...
> On Wed, Jan 7, 2009 at 5:25 PM, Naveen Kumar GADDIPATI
> <naveen.gaddipati@stnwireless.com> wrote:

[Full quote deleted]

Can you please stop top-posting / full-quoting?

Please read http://www.netmeister.org/news/learn2quote.html
and follow the rules.

Thanks.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
Question: How does one get fresh air into a Russian church?
Answer:   One clicks on an icon, and a window opens!

[U-Boot] help

[dinny]

Hi Denk,

On Wed, Jan 7, 2009 at 6:13 PM, Wolfgang Denk <wd@denx.de> wrote:
> Can you please stop top-posting / full-quoting?
>

Sure, I corrected it once I had known.

Best Regards
Dinny
-- 
what we need is passion, chance, and companions.

[U-Boot] help

[Nishanth Menon]

dinny said the following on 01/07/2009 03:37 AM:
> >From the cpu aspect, it should be the most familiar one with your
> CPUs. And try to learn more on your on-board peripherals and devices.
> Probably you can find some boards that have similar device
> configuration, thus you can reuse some codes, esp. in case that you
> should be not familiar with these devices.
>
>   
One thing that might be different would be mmu config I would suspect..
you may want to refer to [2] instead of omapzoom as [2] is closer to
mainline u-boot. you can find cortex_a8 documentation in [1]. TI OMAP3
documentation is publically available too, if you would like to see what
is happening in the code..

Regards,
Nishanth Menon

Ref:
[1]
http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0344e/index.html
- there is a link to A9 also nearby..
[2]
http://www.sakoman.net/cgi-bin/gitweb.cgi?p=u-boot-arm.git;a=shortlog;h=refs/heads/omap3-dev

[U-Boot] help

[dinny]

Thanks for ur updates. This topic seems interesting:-)

On Wed, Jan 7, 2009 at 9:37 PM, Nishanth Menon <menon.nishanth@gmail.com> wrote:
> One thing that might be different would be mmu config I would suspect..
> you may want to refer to [2] instead of omapzoom as [2] is closer to
> mainline u-boot. you can find cortex_a8 documentation in [1]. TI OMAP3
> documentation is publically available too, if you would like to see what
> is happening in the code..
>
> Regards,
> Nishanth Menon
>
> Ref:
> [1]
> http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0344e/index.html
> - there is a link to A9 also nearby..

It seems A9's doc is public-restricted, and it prevents me from having
a look at A9's design.  Could you make it clear what main changes on
MMU between A8 and A9 are?

> [2]
> http://www.sakoman.net/cgi-bin/gitweb.cgi?p=u-boot-arm.git;a=shortlog;h=refs/heads/omap3-dev
>

Best Regards
Dinny
-- 
what we need is passion, chance, and companions.

[U-Boot] help

[Nishanth Menon]

On Wed, Jan 7, 2009 at 8:12 AM, dinny <dinny.wu@gmail.com> wrote:
>> [1]
>> http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0344e/index.html
>> - there is a link to A9 also nearby..
>
> It seems A9's doc is public-restricted, and it prevents me from having
> a look at A9's design.  Could you make it clear what main changes on
> MMU between A8 and A9 are?
I have not looked at A9, so I cannot comment unfortunately.
Regards,
Nishanth Menon

[U-Boot] Help

[Moon Moon]

Hello Sir,
? ? ? ? ? ? ? ? ? ? I have a development board smdk6400.When i switch on my power my lcd shows only white colour.and nothing boot please help me.
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? Thanks,
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? Raheel

[U-Boot] Help

[Jeroen Hofstee]

Hello Raheel,

On 01/20/2014 09:37 PM, Moon Moon wrote:
> Hello Sir,
>                      I have a development board smdk6400.When i switch on my power my lcd shows only white colour.and nothing boot please help me.
>                                                                                                                                                                                

1) don't turn it on, that should solve all issues
2) have a look at doc/README.scrapyard

Regards,
Jeroen