* About I-cache and D-cache of MPC8245
@ 2005-01-25 1:23 chao yu
2005-01-25 14:37 ` Jerry Van Baren
0 siblings, 1 reply; 2+ messages in thread
From: chao yu @ 2005-01-25 1:23 UTC (permalink / raw)
To: linuxppc-embedded
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Hi, All
I am a newbie in embeded system from China, recently i enable the I-cache and D-cache of MPC8245. But it will crash. What the cause might be? I have set the ICE and DCE filed of HID0 reg. and WIMG field of BAT reg. Who can give me a hand? Thanks.
Regard,
Yu.Chao
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: About I-cache and D-cache of MPC8245
2005-01-25 1:23 About I-cache and D-cache of MPC8245 chao yu
@ 2005-01-25 14:37 ` Jerry Van Baren
0 siblings, 0 replies; 2+ messages in thread
From: Jerry Van Baren @ 2005-01-25 14:37 UTC (permalink / raw)
To: chao yu; +Cc: linuxppc-embedded
chao yu wrote:
> Hi, All
> I am a newbie in embeded system from China, recently i enable
> the I-cache and D-cache of MPC8245. But it will crash. What the cause
> might be? I have set the ICE and DCE filed of HID0 reg. and WIMG field
> of BAT reg. Who can give me a hand? Thanks.
>
> Regard,
> Yu.Chao
Your SDRAM initialization is probably not correct. When you turn on
caches, the processor starts doing burst reads of the SDRAM and that is
when SDRAM initialization problems show up.
<http://www.denx.de/twiki/bin/view/DULG/UBootCrashAfterRelocation>
gvb
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