Ollie,
THis is another approch, but the of course losing 128k of address space, which I guess is not a problem, but also, I totally agree with you, it is adding an extra flash device, which is why the original Millennium was not a bad solution, except for all of the other baggage that it brought along with itself!
Hamish
-----Original Message----- From: linuxbios-admin@clustermatic.org [mailto:linuxbios-admin@clustermatic.org]On Behalf Of ollie lho Sent: 09 September 2002 01:00 To: hamishl@dplanet.ch Cc: Ronald G Minnich; linuxbios@clustermatic.org Subject: RE: The DoC problem
On Mon, 2002-09-09 at 18:03, Hamish Guthrie (Mail Lists) wrote:
I think the DoC mess is here to stay, there is one potential solution if people are insisting on having DoC, and that is to make up a
little board
which plugs into a BIOS socket which has both a 256k flash device and a little bit of decode logic for a DoC, as well as a DoC - if anyone is interested in this approach, I could knock together a few
prototypes for a
couple of $'s, but I have my reservations as to this being a permanent long-term solution for production systems.
Actually this is very easy, The DoC requires only 8kB address window, if we use a 128KB flash EEPROM for LinuxBIOS, we still have the MSB address line free to acts as Chip Select. I believe this have been done by someone in Austria (sorry, I forgot the name) before. On the other hand, we lost the beauty of "only one flash needed".
Ollie
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