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SubjectRe: [PATCH v2 01/15] x86/e820: remove conditional early mapping in parse_e820_ext
On Fri, 14 Jan 2011 11:57:09 +0100
Sebastian Andrzej Siewior <bigeasy@linutronix.de> wrote:

> * Grant Likely | 2011-01-14 01:14:46 [-0700]:
>
> >Hey Sebastian,
> Hi Grant,
>
> thanks for doing this.
>
> >Can you please repost this series after the merge window closes?
> >Some of the patches have been reworked and reposted, but I've kind
> >of lost track of which ones need my attention. Also, some of the
> >patches have
> Yes, this was my secret plan :) I also had to rework patches because
> of other patches either because they no longer applied or because the
> code had to change in order to work again.
>
> In case "[v2,13/15] x86/rtc: don't register rtc if we the DT blob" [0]
> goes into the category "lost track" and not "had no time to reply"
> could please take a look? The important part is where it could change
> behavior for OLPC and it migh end up without a RTC. I Cc Andres
> Salomon as might know where the RTC on OLPC is comming from.

The RTC that OLPC uses for XO-1 was interspersed w/ the power management
stuff, so it hasn't gone upstream yet (dsd is still working on the pm
stuff). Thus, for Linus kernels the XO-1 uses rtc_cmos; so yes, this
could break things.

On OLPC kernels on the XO-1, we read RTC information from the
CS5536's MSRs (note that there's nothing there that's OLPC-specific, so
this should probably become a generic geode RTC driver). I'm unfamiliar
with the XO-1.5, but it appears we use the VX855 RTC (at least for
wakeups). I don't see a specific RTC driver for it, so I suspect it
relies on rtc_cmos.


>
> >gone in via the tip tree, so it would be useful to regroup and figure
> >out which ones are no longer needed.
> I try to regroup and a add TIP or OF prefix.
>
> >I'll be able to take a fresh look and pick up the ones that are ready
> >after the merge window closes.
> Okay.
>
> >Thanks,
> >g.
>
> [0] https://patchwork.kernel.org/patch/450681/
>
> Sebastian


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