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Re: Setting the physical RAM map

To: Ralf Baechle <>
Subject: Re: Setting the physical RAM map
From: Adam Nielsen <>
Date: Tue, 01 Dec 2009 08:38:39 +1000
In-reply-to: <>
Original-recipient: rfc822;
References: <> <>
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-GB; rv: Gecko/20090809 Thunderbird/ Mnenhy/
Are you sure it's a R4600, not R4640 or R4650?

It's like a decade that I last read up on these but afair they have a
fixed mapping starting at 0x40000000.  It would make perfect sense to
use such a CPU in an X terminal.

Hmm, I'm not sure. I'd have to peel off the heatsink to be sure I guess. The very first kernel messages print this:

  CPU revision is: 00002020 (R4600)
  FPU revision is: 00002020

So I guess these values would be more specific if the CPU was indeed one of those revisions.


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