[ECOS] Bootloader for ARM integrator board

[ECOS] Bootloader for ARM integrator board

[Mehul Agarwal, Noida]

Hi !

I am new to Linux.

I want to port a bootloader for ARM integrator board which is based on
ARM966-ES processor. Can I use the redboot for that purpose ? Also, is ecos
necessary to be installed in the system where redboot is being built ? Also,
according to my understanding redboot is currently available for ARM7TDMI
processor. Will it be necessary to port ecos also to ARM 966E-S in order
that redboot works on ARM966E-S processor ?

Thanks and regards,
Mehul




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Re: [ECOS] Bootloader for ARM integrator board

[Jonathan Larmour]

Mehul Agarwal, Noida wrote:
> Hi !
> 
> I am new to Linux.
> 
> I want to port a bootloader for ARM integrator board which is based on
> ARM966-ES processor. Can I use the redboot for that purpose ?

You can use redboot as your bootloader yes.

> Also, is ecos
> necessary to be installed in the system where redboot is being built ?

You need to install the eCos environment, but you only build redboot.

 > Also,
> according to my understanding redboot is currently available for ARM7TDMI
> processor. Will it be necessary to port ecos also to ARM 966E-S in order
> that redboot works on ARM966E-S processor ?

Actually it does work on the ARM966E-S processor. Use the integrator_arm9 
target.

Jifl
-- 
eCosCentric    http://www.eCosCentric.com/    The eCos and RedBoot experts
--[ "You can complain because roses have thorns, or you ]--
--[  can rejoice because thorns have roses." -Lincoln   ]-- Opinions==mine


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Re: [ECOS] Bootloader for ARM integrator board

[Jonathan Larmour]

Mehul Agarwal, Noida wrote:
> Hello,
> 
> Just one more question .. Is the kernel image of Linux(vmlinux) directly
> bootable on the integrator platform or does it necessarily require the
> bootloader to do the initialization of the board before the control can
> finally jump to vmlinux ?

Theoretically you could do it with just a very simple stub to point the 
linux kernel at the right initialization data. See 
hal/arm/arch/current/src/redboot_linux_exec.c. But since the kernel has to 
be loaded into ram, that means ram and MMU must also be initialized etc.etc.

Much easier just to use RedBoot and be done with it.

Jifl
-- 
eCosCentric    http://www.eCosCentric.com/    The eCos and RedBoot experts
--[ "You can complain because roses have thorns, or you ]--
--[  can rejoice because thorns have roses." -Lincoln   ]-- Opinions==mine


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Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
and search the list archive: http://sources.redhat.com/ml/ecos-discuss

RE: [ECOS] Bootloader for ARM integrator board

[Mehul Agarwal, Noida]

Hello,

Just one more question .. Is the kernel image of Linux(vmlinux) directly
bootable on the integrator platform or does it necessarily require the
bootloader to do the initialization of the board before the control can
finally jump to vmlinux ?

Thanks and regards,
Mehul


-----Original Message-----
From: Jonathan Larmour [mailto:jifl@eCosCentric.com]
Sent: Thursday, May 01, 2003 6:47 AM
To: Mehul Agarwal, Noida
Cc: ecos-discuss@sources.redhat.com
Subject: Re: [ECOS] Bootloader for ARM integrator board


Mehul Agarwal, Noida wrote:
> Hi !
> 
> I am new to Linux.
> 
> I want to port a bootloader for ARM integrator board which is based on
> ARM966-ES processor. Can I use the redboot for that purpose ?

You can use redboot as your bootloader yes.

> Also, is ecos
> necessary to be installed in the system where redboot is being built ?

You need to install the eCos environment, but you only build redboot.

 > Also,
> according to my understanding redboot is currently available for ARM7TDMI
> processor. Will it be necessary to port ecos also to ARM 966E-S in order
> that redboot works on ARM966E-S processor ?

Actually it does work on the ARM966E-S processor. Use the integrator_arm9 
target.

Jifl
-- 
eCosCentric    http://www.eCosCentric.com/    The eCos and RedBoot experts
--[ "You can complain because roses have thorns, or you ]--
--[  can rejoice because thorns have roses." -Lincoln   ]-- Opinions==mine

-- 
Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
and search the list archive: http://sources.redhat.com/ml/ecos-discuss