OLPC News 2007-12-30

[Mitch Bradley]

Jaya Kumar wrote:
> On Dec 31, 2007 3:23 AM, Mitch Bradley <wmb at laptop.org> wrote:
>   
>> resetting without the EC's knowledge.  There is a 2-line patch in the
>> ticket; it makes the kernel reboot using the approved EC interaction.
>>     
>
> Looking at your trac entry, I see:
>
> "The change is in arch/i386/kernel/reboot_fixups.c :
> cs5536_warm_reset(), more or less like this:
> + #ifdef CONFIG_OLPC
> +    outb(0xdb, 0x66);
> +    udelay (1000000);
> + #endif
>    wrmsrl(0x51400017, 1ULL);
>    udelay(50);
> "
>
>   
>> I have been trying for 2 months to get this fix included in the kernel,
>> but so far I haven't managed to get any traction.
>>
>>     
>
> I am unsure if you mean the olpc repo

I meant the OLPC kernel.

I presume that OLPC changes will be offered to mainline in some batch 
fashion, rather than piecemeal. This particular one is of no upstream 
value in isolation, as it is utterly dependent on OLPC-specific EC commands.

> or if you mean you haven't been
> able to get the patch into Linus's mainline tree. If you mean
> mainline, I didn't see the patch and can't find your posting in
> linux-kernel at vger archives. If you can repost your patch after diffing
> it against mainline (the file may be renamed to
> arch/x86/kernel/reboot_fixups_32.c after the x86-64 merge) and please
> CC me, I would be happy to ack it and Andres's previous one as well.
>
> Thanks,
> jaya
>