Re: 4.13 (and probably all recent) kernels refuse to boot on one Nokia N950, work or another

[Pavel Machek <pavel@ucw.cz>]

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Hi!
On Thu 2017-10-26 09:32:36, Pali Rohár wrote:
> On Thursday 26 October 2017 09:27:59 Pavel Machek wrote:
> > Hi!
> > 
> > On Thu 2017-10-26 09:21:13, Pali Rohár wrote:
> > > On Thursday 26 October 2017 09:08:15 Pavel Machek wrote:
> > > > On Thu 2017-10-26 08:25:02, Filip Matijević wrote:
> > > > > Last time I couldn't get output on serial I used CONFIG_DEBUG_LL,
> > > > > CONFIG_DEBUG_OMAP3UART3, CONFIG_EARLY_PRINTK... and ignore_loglevel
> > > > > earlyprintk kernel params to get output early enough - I guess you
> > > > > already tried that.
> > > > 
> > > > I realized I'm not getting output from the decompessor (even on "S"
> > > > machine), and enabled that.
> > > 
> > > That is because you have not enabled those EARLY PRINK or DEBUG LL.
> > > Similar thing is needed for N900 and IIRC in some of my linux-n900
> > > branches I have config for it. Plus it needs patching some arch/arm
> > > source files to make it working.
> > 
> > Do you have a patch? That would be very useful.
> 
> Yes, in v4.9-n900 branch, see:
> https://github.com/pali/linux-n900/commit/66b22ba4132ca90f7efc3f9e8ece8d4b9adddcdc

Thanks for a pointer; but I still don't see how this is supposed to
work:

arch/arm/include/debug/uncompress.h provides empty static inline void
arch_decomp_setup(void) {}

...?
								Pavel
-- 
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