Re: boot from SD???

Hi Handy!

Thank you for your post!

Well, actually, we're not talking of booting from CF yet. What can now
be done is boot from RAM (thanks to HaRET), and then pivot_root to CF
(or NFS later).

Booting directly from CF or SD would require to replace the original
bootloader. Work on LAB (Linux as A Bootloader) is ongoing, but not
ready yet.

Of course, SD and SDIO are part of the plans! We first need to make some
basic functions of the Hamcop asic work (such as LEDs, interrupts, etc),
and then implement the SD driver for this asic. If you are interested in
participating to this work, you may start by reading
http://www.handhelds.org/platforms/hp/ipaq-h22xx/08-sdi.pdf, and also
check kernel sources for MMC/SD support. That would be great if you (and
other interested team members) could implement this!

About SDIO, I think that you're right. It will take more time to support
SDIO peripherals, and we'd rather start by using SD for storage and CF
for peripherals.

I can already picture my h2210 with 32 + 256 MB of Flash (thanks to SD),
and expanded with a CF USB host, CF Wlan or CF VGA adaptor (useful for
projecting slides)!

Welcome to the team!

    Cheers,

    Michael.

>I've been watching this thread for quite awhile now.
>I had, key word had, a 2210. I set it down in a home
>improvement store and it got up and walked away. Oh,
>well, getting ready to buy another one. Just love the
>SD and CF slots. Anyway, while watching the posts,
>I've noticed everyone is shooting to try and boot from
>a CF card. Or at least that's what I understand. I'm
>wondering if it will be able to boot from the SDIO
>port instead. Is that going to be in the works or do
>I need to get a CF memory card? I don't yet trust the
>SDIO to provide me the wireless access I want so I was
>trying to stick with proven SD card for memory and a
>CF card for wireless.
>If someone could let me know, I'd appreciate it. Once
>I get through some things at work, I'm going to start
>looking at some of the code in this effort. I've
>never coded C or C++ but embedded code on these things
>really interests me.
>Sorry for the long post.
>
>Handy.
>
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-- 
Michael Opdenacker
http://opdenacker.org/