Subject: Re: Handling machine check exception

From: Matt Sealey <[email-masked]>
Date: Thu, 12 Oct 2006 12:34:05 +0200

The G2 core definitely has a DAR register (SPR 19).

Look on the Freescale site for G2CORERM.pdf - this is
your reference manual, not the one specifically for the
8247.

-- 
Matt Sealey <[email-masked]>
Genesi, Manager, Developer Relations

ganesh subramonian wrote:
> Hi,
> 
> I am trying to modify the machinecheck exception
> handler so that checks caused by data access to a
> particular address range can be ignored. In mpc866
> there is a register called DAR(Data Address Register)
> which gives the address[access to] which caused the
> exception. However this is not mentioned in the
> MPC8247 manual. Is there some equivalent register for
> 8247. (It seemed to me that the DAR should be a core
> register and hence should be there on 8247 also. but
> if i try to read i really dont get the address causing
> the error).
> 
> Or is there some way i can specify that access to a
> particular range of address should not cause a machine
> check?? Please help.
> 
> thanks
> ganesh
> 
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