Levi Khatskevitch wrote:
> Hi,
> I remeber someone mentioned here an intresting idea. Initiate L2 cache before
> RAM and unpack LinuxBIOS from DoC to the cache thus overcomming the DoC IPL
> 512B limitation. Is there any progress on that idea, or is it still considered
> possible?
>
>
M-Systems has announced that their future 16MB and 32MB TSOP-1 DOC's will have a 1KB
boot block.
The K-7 L2 cache init routine and page tables have to be run from an uncacheable
memory area as set
by the MTRR's. The code looks workable ....... I wish I had the time to try it out.
What would really be nice is a readily available 32-pin Dip Flash DOC like device of
useful sizes
(4MB, 8MB, 16MB) with standard boot blocks of 16 Kbyte, 8 Kbyte, or 32 Kbyte so you
could simply
replace the 32-pin Dip Flash that contains the OEM BIOS on the motherboard with this
device and not
go through the contortions of dealing with the 512B IPL and just have a simple paging
scheme to the
memory above 2MB like was mentioned before.
Bari
