On Thu, Mar 24, 2005 at 08:00:35AM -0700, Ronald G. Minnich wrote: > > > On Thu, 24 Mar 2005, Devon H. O'Dell wrote: > > > Thankfully, it appears to do so. From the Linux source: > > > > SET_BANK( 0, 0xc0000000, 64*1024*1024 ); > > > > Might that simply be a property of the processor? I don't know > > much about physical / virtual memory mapping. > > > > that would be neat if so, it would show high clue level on the part of > sa11xx designers, along with the 'read all zeros' memory. > > said clue appears not to have made it to ep93xx. >
Well, the first roadblock will be getting Plan 9 to boot from
the thing. It appears to support netbooting, but I'm waiting for
information on the PC card devices that it supports doing that
over. This would make it MUCH easier for me (assuming it has
some similarity to PXE) as writing the 64MB image to the thing
over serial takes a good 30 minutes or more.
I've got a good bit of generic information about the SIMpad boot
loader, but need to figure out where to put the kernel and such
in an image.
PBL V2.4 20.07.2001
Booting...
================================================
Siemens Switzerland Bootloader V2.5.3 10.06.2003
Running @206Mhz Processor ID 0x6901b118
Press ESC for monitor
Occupied Memory: [0x00004000-0x00008000],[0x00008014-0x0007500c]
Flash Id 0x00000018 at virt adr 0x05000000 Size 0x01000000
No 32Bit Flash detected 0x00000000
FlashImage Checksum 0x05040014-0x05059f11=0x8912ac03 Bootloader Image
OK
Fabdata Flash @0x05059f18 Ram @0x00021f18 FABDATA: S842-KKFNX
MQ200 - Revision ID=2 ...
Initialise PCMCIA Interface... done.
Codec UCB1200 ID:0x1005 Ver.5 Dev.0 Suppl.1 IO 0x00000000
No PCMCIA Card Attached
NO PCMCIA CARD! -- Use serial IO
Sysinit done
No serial download request
Boothdr at 0x05080000 -> 0x31415926
Loading executable with header 0x0000
[*********************|] 0kB/sec
Done
On another note, is there a better developer's list to take
this thread to? I'm not sure it's entirely on-topic.
Hm. Interesting. I just chose the `Boot from Net' option in the
serial loader menu. I get:
=====================
Monitor:
=====================
Boot from Flash 'f'
Boot from Net 'n'
Power Off 'o'
Erase PSM+Registry'p'
Exit 'q'
Erase Registry 'r'
Erase Flash 'y'
Soft Reset 's'
Print Fab-String 'w'
-> n
Probing for any NE2K Card.....
Quite cool. Too bad I don't have an NE2K PC card. I'll have to
see what such a thing costs and go from here.
--Devon
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