Re: Flashboard for a 720

Adam Pribyl <[email protected]>
Newsgroups gmane.comp.handhelds.linux.jornada
Message-ID <[email protected]>
On Tue, 27 Jun 2006, FilipŻyźniewski wrote:

>>
>> This is interesting option. In first 32k of ROM now resides the WinCE
>> boot/resuume loader. I do not think wince will survive replacing this
>> part.
>
> Why would we want wince survival? I bought a spare ROM board for
> experiments.
>

As usuall, also wince has their usage. To be honest, I use linux only for 
some specific tasks, and WinCE still does a good job in what they were 
designed for.

>> Moreover - we do not have suitable bootloader for linux to boot from
>> CF. I've read something bootldr maybe can boot from CF, but its size is
>> more than 200kB.
>
> Even dumb one utilizing only first CF slot? The most space-eating thing
> would be a PCMCIA init and IDE-cs interface... Do you think that such
> bootloader cannot fit in 32kB?

Everything fine, but somebody has to write it.:)

> How is suspend/resume achieved with HP's flash boards and linux?
> Does jornada always start at 0x0 after resume? Maybe we could put a flag
> somewhere like "system is in memory, jump -> here to resume it" for a
> bootloader?

That still not completely clear to me, but it seems yes. Resume is same as 
start. The problem is same as for previous - coding, and understanding how 
to wake up kernel on jornada. I am not that sure it is working properly 
even with flashboard and bootldr.

>
> What do you think about already mentioned here idea in my other mail
> (memory mapped CF on a flashboard)?

I never saw anything like that in past, but IMHO the CF is too slow to be 
used as flash memory (it's IDE). But I could be wrong

> bye,
> Filip Zyzniewski

Adam Pribyl

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