[U-Boot] Hangs at relocation on 460EX Target

Wolfgang Denk wd at denx.de
Tue Oct 21 21:10:03 CEST 2008


Dear "Ayman M. El-Khashab",

In message <20081021162030.GB22117 at crust.elkhashab.com> you wrote:
> 
> I should have mentioned that we have DEBUG enabled and we've also 
> run the RAM test that is included in u-boot.  The ram test does pass.

Please see the FAQ, entry # 1. Passing the RAM test does not mean
anything when it comes to accessing the RAM in burst mode.

> I am not familiar with those, I thought that once the SDRAM is operating
> you cannot alter those calibration and timing/delay registers.  Is this 
> calibration something that is enabled in u-boot or just via the register
> accesses to the memory controller?

How about reading the code?

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
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