>> > On 18 September 2012 12:09, Maximilian Schwerin >> > <maximilian.schwe...@tigris.de> wrote: >> >> Hi all, >> >> >> >> I have been convinced that my patch for disabling the message >> >> "Uncompressing linux..." on kernel start was not all that >> good an idea. >> >> As the problem still remains an issue for me and I'd like >> to find a fix >> >> for everyone I'd like to ask for pointers where or how to fix this. >> >> >> >> To sum up my problem: I'm using the primary serial port on >> an OMAP3 as a >> >> debug console for development. In production we set the >> u-boot silent >> >> option which disables all kernel logging to this serial >> port. The only >> >> kernel message that remains is "Uncompressing linux..." at the very >> >> beginning. As we connect an external device via this port >> in production >> >> environments this is not acceptable. >> >> >> > Perhaps adding config choice under "Kernel low-level >> debugging port", >> > to select the UART port to direct the early prints to, would help. >> > Like some platforms already do. See DEBUG_CLPS711X_UART1/2 , >> > DEBUG_MSM_UART1/2/3 etc. >> >> On a second thought, I think we need a new config independent >> of DEBUG_LL. >> Something like what Samsung code does with symbol >> S3C_LOWLEVEL_UART_PORT in arch/arm/plat-samsung/Kconfig > > In my case I need to be able to disable it completely. > The idea is to direct the output to some other (unused) UART port.
Also if one doesn't select DEBUG_LL, I wonder if it makes sense to expect the "Uncompressing .... " message, which too is just dumping raw data onto UART. So another option might be to simply use CONFIG_DEBUG_LL instead of CONFIG_DEBUG_DECOMPRESS_KERNEL ? -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
