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From: Wolfgang Denk <wd@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] Solved: U-Boot (porting) problem on MCF5445x board
Date: Tue, 19 Jan 2010 15:04:18 +0100	[thread overview]
Message-ID: <20100119140418.C857CC88AE@gemini.denx.de> (raw)
In-Reply-To: <20100119131716.GC23389@leila.ping.de>

Dear Wolfgang Wegner,

In message <20100119131716.GC23389@leila.ping.de> you wrote:
> 
> The problem turned out to be a simple SDRAM setup problem.
> I had set "burst read to read/precharge delay" and "burst write
> to read/write/precharge delay" by 1 too low.
> 
> Don't know how I messed these values up, but these lead to all
> memory accesses in single-step mode and via BDM to work correctly
> but gave erroneous results in real program execution.
> 
> [note to self: in case of strange errors, always check memory
> interface. If triple-checked: check again...]

Congrats for fixing it - note that y ou are not the first one to
discover this. There is a reason why this topic has a top entry in the
FAQ.

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 at denx.de
The use of COBOL cripples the mind; its teaching  should,  therefore,
be regarded as a criminal offense.                   - E. W. Dijkstra

      reply	other threads:[~2010-01-19 14:04 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-01-14 14:33 [U-Boot] U-Boot (porting) problem on MCF5445x board Wolfgang Wegner
2010-01-14 16:15 ` Wolfgang Wegner
2010-01-14 16:53   ` Wolfgang Wegner
2010-01-19 13:17     ` [U-Boot] Solved: " Wolfgang Wegner
2010-01-19 14:04       ` Wolfgang Denk [this message]

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