From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <39047137.8C4ECB54@embeddededge.com> Date: Mon, 24 Apr 2000 12:07:19 -0400 From: Dan Malek MIME-Version: 1.0 To: Steve Tarr CC: zzh , linuxppc-embedded@lists.linuxppc.org Subject: Re: memory map References: <3903BE73.04522@mta2> <3903C55C.DBC66391@embeddededge.com> <39037636.B3350172@lucent.com> Content-Type: text/plain; charset=us-ascii Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: Steve Tarr wrote: > This IMMR for the MPC8260 is VERY tricky, I didn't think so. The only thing different is that it isn't stored in a special register, so you have to know the current IMMR to change to a different one. You can read the default setting from the config word or boot rom, and then change it if you wish. You have to get the default word from someplace, and that is either the application choice from the boot rom or by asserting RSTCONF and using a default when there isn't a boot rom. I think the implementation is pretty slick, especially when you look at the multiprocessor implementation. Just because Motorola screwed up one of their reference boards (again), doesn't mean it can't work well for others. The purpose of these reference boards is to demonstrate the ease of using a processor, and I am just amazed they consistently build the most difficult to use and unreliable platform to do that. Fortunately, there are other choices. -- Dan ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/