On Thu, Jul 28, 2011 at 1:22 PM, Gary Thomas <g...@mlbassoc.com> wrote: > On 2011-07-27 20:20, Bernard Mentink wrote: >> >> Hi Guys, >> >> I have got a bit further with my efforts to boot linux on an imx31 based >> platform using u-boot. >> >> My console output is now: >> >> ---------------------------------------------------------------- >> uboot> bootm 80100000 >> ## Booting kernel from Legacy Image at 80100000 ... >> Image Name: Angstrom/2.6.36/mx31ads >> Created: 2011-07-28 2:03:27 UTC >> Image Type: ARM Linux Kernel Image (uncompressed) >> Data Size: 1586172 Bytes = 1.5 MiB >> Load Address: 8f000000 >> Entry Point: 8f000000 >> Verifying Checksum ... OK >> Loading Kernel Image ... OK >> OK >> >> Starting kernel ... >> >> Uncompressing Linux... done, booting the kernel. >> ------------------------------------------------------------------- >> >> So it seems to be getting to the 1st part of the kernel boot process, >> then hangs (I presume the last line comes from kernel code.) >> I don't know if the kernel is hanging, or if I don't have any more >> serial out .... >> I am passing "console=ttymxc0,115200" to the kernel .. >> Can someone confirm: >> A) If I have the correct Entry point, or does this need to be offset >> into the kernel? .. >> B) Is the serial console parameters correct? >> C) What is the correct way to set up the memory map? (my ram starts at >> 0x80000000, ends at 0x8fffffff) >> D) Is there a way to debug initial kernel stuff with serial output? >> In the above, I have decompressed the kernel to the top of the 256M ram, >> but have only advertised 120M via the bootloader ... for now, not >> knowing what is correct and not wanting the kernel >> to stomp all over itself running in ram. > <cut>
In answer to D) there is earlyprintk using a custom-compiled debug-kernel Regards Andrea _______________________________________________ Openembedded-devel mailing list Openembedded-devel@lists.openembedded.org http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-devel