Lines Matching refs:RAM
1 $NetBSD: VMEbus-RAM,v 1.5 2023/09/30 20:15:54 andvar Exp $
3 NetBSD/mvme68k: VMEbus RAM card configuration
6 NetBSD-mvme68k can be configured to support additional RAM boards
9 This file describes where to configure your VMEbus RAM and how to
15 space spans 0x00000000 to 0x00ffffff. However, onboard RAM also spans
16 this space. With 8Mb of onboard RAM, only the top 8Mb of VMEbus A24
25 VMEbus address space is masked by onboard RAM. The size of this region
26 depends entirely on the size of onboard RAM.
28 The best place for VMEbus RAM cards is somewhere in A32D32 VMEbus address
29 space. Obviously, if your VMEbus RAM card doesn't respond to that space
35 MVME board's RAM. That is, if you have 32MB of onboard RAM, set the
36 VMEbus RAM board to appear at A32:02000000.
46 Next, you need to configure the end address of VMEbus RAM. Assuming
47 your RAM card is 8Mb in size, this would be 0x017fffff. You need to
57 If you have more than one VMEbus RAM card, you must configure them so
64 onboard RAM and will not attempt to use any VMEbus RAM.
67 Some extra notes on VMEbus RAM cards
70 So... You've got your nice shiny VMEbus RAM card up and running with
72 with less RAM!
79 The upshot is that the cache only works for onboard RAM, not VMEbus
80 RAM, hence your system runs slower. As far as I can see, the only