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 > 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? For problems with smc or any other it is needed to look into kernel log :-( -- Pali Rohár pali.rohar@xxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
