From mboxrd@z Thu Jan 1 00:00:00 1970 From: pavel@ucw.cz (Pavel Machek) Date: Thu, 26 Oct 2017 09:27:59 +0200 Subject: 4.13 (and probably all recent) kernels refuse to boot on one Nokia N950, work or another In-Reply-To: <20171026072113.z5bqer7os62ckf3z@pali> References: <20171025203459.GA22035@amd> <3dbb966f-c279-2c57-d3c2-98ca7c04accd@gmail.com> <20171026070815.GA20634@amd> <20171026072113.z5bqer7os62ckf3z@pali> Message-ID: <20171026072759.GC20634@amd> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi! On Thu 2017-10-26 09:21:13, Pali Roh?r wrote: > On Thursday 26 October 2017 09:08:15 Pavel Machek wrote: > > On Thu 2017-10-26 08:25:02, Filip Matijevi? 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. Seems like debugging in uncompressor was broken some time ago: config DEBUG_UNCOMPRESS bool depends on ARCH_MULTIPLATFORM || PLAT_SAMSUNG || ARM_SINGLE_ARMV7M default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && (!DEBUG_TEGRA_UART || !ZBOOT_ROM) && \!DEBUG_BRCMSTB_UART > > But I'm _still_ not getting any output on decompressor... early > > printing works ok on "S" but not on "P". > > I guess there can be either problem with memory mapping and RAM size or > with OMAP HS mode? RAM size should be ok... how do I check for OMAP HS problems? Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 181 bytes Desc: Digital signature URL: