Re: Re: u-boot & uImage on M5282LITE

On Apr 15, 2008, at 12:41 AM, Loren A. Linden Levy wrote:

>
> Well I think I figured this out, I needed to assign all 32 bits i.e.
>
> CSAR5=0x30000000

CSAR is a 16 bit value. You should do a 16 bit write at that address.

I've been playing (alas, no success just yet) with talking to my  
device - I'm just using u-boot to examine the memory space - no OS  
loaded on this thing just yet.

You might try this in u-boot too:

mw.w 0x400000BC <base address you want to use>
mw.w 0x400000C4 0x3d00
mw.l 0x400000C0 0x00010001

Note that the top two are word writes, and the bottom is a long write.
I'd think that you don't want to mark the chip select as valid (low  
bit set on CSMR) until you've set up the other two registers.

hth
-
allon
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