[U-Boot-Users] Boot Loader Development - Information - U-Boot - denx.biz

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Srinivas G.

22 Nov 2007 22 Nov '07

1:37 p.m.

Dear All,

I am new to this boot loader development. I am developing the boot loaders. I have gone through the google about the requirements to be considered while developing. I did not get the much information about what the boot loaders consist.

Could some one send me samples / links so that it helps me in moving forward further?

Thanks and Regards,

Srinivas G

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Wolfgang Denk

22 Nov 22 Nov

3:37 p.m.

In message 15C2CAD382CB69409395ED4F159BED70568127@mail.esntechnologies.co.in you wrote:

I am new to this boot loader development. I am developing the boot loaders. I have gone through the google about the requirements to be

You've gone through the google. Wow.

Did you try something like searching for "U-Boot Design Principles" ?

And then follow the very first link it presents?

considered while developing. I did not get the much information about what the boot loaders consist.

They are software...

Could some one send me samples / links so that it helps me in moving forward further?

See above.

------_=_NextPart_001_01C82D04.63A020FE Content-Type: text/html;

And please note that HTML is forbidden here.

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@denx.de In an organization, each person rises to the level of his own incom- petency - The Peter Principle

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Srinivas G.

23 Nov 23 Nov

12:10 p.m.

Dear Wolfgang Denk,

Thank you very much for your information.

You've gone through the google. Wow.

Actually I have gone through the following links. http://en.wikipedia.org/wiki/Boot_loader http://msdn2.microsoft.com/en-us/library/ms903967.aspx http://linuxdevices.com/articles/AT5085702347.html http://www.denx.de/wiki/view/DULG/UBoot http://www.denx.de/wiki/UBootdoc/Presentation http://www.denx.de/wiki/UBoot http://u-boot.cvs.sourceforge.net/u-boot/u-boot/doc/ http://ecos.sourceware.org/ecos/docs-latest/redboot/redboot-guide.html

...
considered while developing. I did not get the much information about what the boot loaders consist.

They are software...

I know they are softwares. I mean, I need the information about the role of the boot loader, what will it initialize? I think, in general it initializes the memory controller, processor, board specific hardware etc. This is also varies from board to board and CPU to CPU. That too, the boot loader written for PC is different from a boot loader written for an embedded board. In case of PC, the most of the functionality will be performed by BIOS and then executes the boot loader from the MBR. In case of embedded board, they do not have the BIOS to perform the initial system configuration. I am looking into the embedded board boot loader. I need the information about the role of the boot loader in embedded board.

I did not find any document related to the role of the boot loader. So, could you please send me some useful information on it.

Thanks in advance.

Thanks and Regards, Srinivas G

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Clemens Koller

2:30 p.m.

Hi, Srinivas!

Srinivas G. schrieb:

Actually I have gone through the following links. [...] I did not find any document related to the role of the boot loader. So, could you please send me some useful information on it.

http://en.wikipedia.org/wiki/Booting ?

Hmm... The links, you've gone through seem to provide lots of information. What exactly do you want to know regarding the boot loader we develop (u-boot)?

Regards,

Clemens Koller __________________________________ R&D Imaging Devices Anagramm GmbH Rupert-Mayer-Straße 45/1 Linhof Werksgelände D-81379 München Tel.089-741518-50 Fax 089-741518-19 http://www.anagramm-technology.com

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Andreas Schweigstill

3:16 p.m.

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1

Dear Srinivas!

Srinivas G. wrote:

I did not find any document related to the role of the boot loader. So, could you please send me some useful information on it.

Do you really think that anybody wants to do your homework *for free*? It seems that you need a paid consultant in order to give you some training and possibly also implements the bootloader itself. And please keep in mind that this mailing list is not a general helpdesk but only intended for *specific* questions, bug reports, recommendations, etc. about U-Boot.

With best regards Andreas Schweigstill

- -- Dipl.-Phys. Andreas Schweigstill Schweigstill IT | Embedded Systems Schauenburgerstraße 116, D-24118 Kiel, Germany Phone: (+49) 431 5606-435, Fax: (+49) 431 5606-436 Mobile: (+49) 171 6921973, Web: http://www.schweigstill.de/

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Andreas Schweigstill
Clemens Koller
Srinivas G.
Wolfgang Denk