[U-Boot-Users] SDRAM "anti-problem"

[Wolfgang Denk]

In message <200505251309.50618.ngustavson at emacinc.com> you wrote:
>
> In my experience the BDM connection is much, much slower than the RAM.

This is true.

> If I load a kernel into the RAM with the BDM I have to get up and walk away, 
> get a sandwitch, have a soda, etc...

Ummm... on most 8xx systems the BDI2000 needs about 7 seconds to load
and burn 1 MB of image to flash. You must be really *fast* to fetch a
sandwich in this time --- or you are using the wrong tools.

> But If I transfer it in over TFTP it's nearly instantaneous.

Of course, this is faster, but then, on some  flash  chips  the  flah
drivers in U-Boot are far from optimal.

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
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