From mboxrd@z Thu Jan  1 00:00:00 1970
From: Steven Scholz <steven.scholz@imc-berlin.de>
Date: Wed, 05 Feb 2003 17:17:10 +0100
Subject: [U-Boot-Users] errata CPU10 for MPC855 ?
Message-ID: <3E413906.4000600@imc-berlin.de>
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To: u-boot@lists.denx.de

Hi there,

I just stumbled over an old errata:

CPU10. Possible Excess Current Consumption in Deep Sleep Mode.

Certain nodes of the multiplier hardware are not initialized at reset, and may 
thus result in non-destructive internal contention. As a result, if the 
processor is put into Deep Sleep mode without first putting the multiplier
into a known state, current consumption in this mode may be higher than expected.

Workaround:
Execute a mullw instruction at any point after reset; this will put the internal 
nodes in an orderly state. Deep Sleep mode may then be entered at any time 
thereafter.

The only mullw's I found in post/cpu/asm.S.

I am not sure, but I guess these functions will only get called if I enable POST!?

So should we put "a mullw instruction at any point after reset"???

Thanks,

Steven