On Thu, 2008-08-14 at 01:28 -0700, Roman Mashak wrote:
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> Hello.
> 
> I'm in for a porting Linux on board hosting System-on-Chip IC made by
> LG - LGMM3001, based on ARM926EJ-S, running at 216MHz. Only uCos has
> been ported on the board so far (not by me).
> 
> This is my first experience of Linux porting, though I wrote a few not
> very complex drivers a couple of years ago for 2.4.x kernel and worked
> mainly on application layer since then.

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> I'm now reading "Embedded Linux System Design and Development" by P.
> Raghavan and Sriram Neelakandan and a few articles I found on Web, but
> anyway there are lots of questions arose. Right now I want to clear a
> few major ones:
> 
> - what kernel version to choose. I understand it depends on system
> requirements and hardware specs, and I think 2.6.x branch should be
> given a preference, as it supports a lot more hardware then 2.4 and
> community provides better support as well :) Question is what version
> of 2.6.x family to choose, is there a strict criterion to choose ?

Always choose the latest version . the bugs are fixed and new device
supports are added . it will make your task easier.

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> 
> - what bootloader can you recommend to choose for porting on the
> board? There are U-boot, Redboot and ARMboot as the most common and
> portable. I briefly check the Web Links and found that only U-Boot
> supports ARM9, am I right?

since the board is ported to uCos it should be using the reboot as
default bootloader. so you can use the same. insted of porting it.

reboot supports linux too. just port the linux and run it over the
existing redboot. mostly you may not need to change the bootloader.
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> 
> - I mentioned above about uCos - is it reasonable trying to port uCos
> device drivers on to the Linux platform, or drivers should be
> rewritten from scratch, as uCos and Linux architectures I guess are
> quite different ?
> 


no idea about the diffrence between ucos and linux architecture. 

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> Thanks in advance and looking forward to getting answers to my queries!

-- 
H. Mohamed Thalib


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