[maemo-developers] [maemo-developers] SDHC Flash Support...

From: Mark Lee mark at geneity.co.uk
Date: Fri Feb 2 20:53:00 EET 2007
On Fri, Feb 02, 2007 at 12:33:15PM -0600, Jae Stutzman wrote:
> On 1/21/07, Mark Lee <mark at geneity.co.uk> wrote:
> >
> >It is a kernel I've built. It's the bog standard kernel
> >(kernel-source-rx-34) with no alterations other than the patch submitted
> >by Philip Langdale applied to it.
> >
> >The md5sum is 2f0d130cb7b0d7e62f5b1a535927a921 though I'm not sure what
> >benefit it'll be as it's no guarentee I can be trusted :)
> >
> >That said, I used the guide here:
> >
> >http://maemo.org/platform/docs/howtos/howto_kernel_guide_bora.html
> >
> >and applied the patch from here:
> >
> >
> >http://www.kernel.org/git/?p=linux/kernel/git/drzeus/mmc.git;a=commitdiff;h=ce30bd294b3740824634a65aa3695951005c002a
> >
> >which, though not applying cleanly, was not hard to do.
> >
> >Then I just flashed the device, rebooted and my previously invisble SDHC
> >cards were recognised and I was able to fill them. It's far from tested
> >(at least by me) and I have had the odd reboot but I had a few before
> >and have no evidence to attribute it to the patch.
> >
> >There appears to be lots of stuff that's happened to the mmc side of the
> >kernel since 2.6.18 including speed improvements. I would expect there
> >to be a more official kernel with these improvements applied before too
> >long,
> >
> >Mark
> I flashed this kernel and it recognizes my 8G SDHC card fine. However, now I
> _seem_ to be getting random reboots. The question is that I noticed that
> this bug (https://maemo.org/bugzilla/show_bug.cgi?id=820) appears to be
> fixed from the latest maemo update.
> Does this custom kernel include the newest kernel code?
> Jae

It looks like that's an update to the 770 not the 800. I don't know
whether whatever's been done here was incorporated into the latest
kernel for the N800 (and therefore this patch). I had several reboots
which I attributed to the patch whilst trying to test it with dd. I
reflashed with the original firmware and was still getting the reboots.
I've filed a bug report regarding it:


I don't suppose you were doing anything like that? At least one person
on the Internet Tablet Talk forums initially thought that a reboot
they'd encountered was down to the patch but then later reported it was
running seemingly stable. There's also an issue with the file manager
formating cards using FAT and therefore limiting the card to 2Gb:



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