On Thu, Oct 28, 2010 at 09:15:55PM +0200, Wolfgang Denk wrote:
Dear Kristoffer Ericson,
In message 20101028190714.GD893@boggieman.bredbandsbolaget.se you wrote:
No. U-Boot is long dead and gone when Linux boots.
Is that true even if I were to setup the memory registers incorrect?
It is truye that U-Boot ceases to exist as soon as Linux starts executing.
I thought that linux pretty much expected the bootloader to setup everything regarding the memory settings?
Of course Linux relies on proper hardware initialization by the boot loader.
alright.
Oh, and IF I configured the memory incorrect, I should be able to see somekind of fault when doing a memtest in u-boot, correct?
No. Usually this is NOT the case.
Or atleast that the write != read values?
No. Please read the FAQ: http://www.denx.de/wiki/DULG/UBootCrashAfterRelocation
Very useful information. So in short (just to make it crystal clear): Even if u-boot works fine and linux starts without any issues and can run some binaries (busybox from what I see) okey. If I am seeing some kernel oops when running bigger binaries (e.g apt/ipkg) / doing heavier stuff (trying to ftp/lynx through pcmcia card), it could be cause by bad memory configuration and/or bad initialization?
Best regards,
Wolfgang Denk
-- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de "He was so narrow minded he could see through a keyhole with both eyes ..."