Re: MMU and BDI2000

In message [off-list ref] you wrote:

quoted

default  translation  is  enabled.  See  the  BDI2000  user's manual,
Section "3.2.2 Part [TARGET]" (Entries "MMU XLAT  [kb]"  and  "PTBASE
addr") and Section "3.3.4 Embedded Linux MMU Support".

You have no idea how often I had read this and I couldn't even find out if
it belongs to my problem.

How do I get the swapper_pg_dir? Is it the constant address from System.map?

You need the contents, like that:

(gdb) target remote bdi:2001
Remote debugging using bdi:2001
0x100 in ?? ()
(gdb) b start_here
Breakpoint 1 at 0xc0002180
(gdb) c
Continuing.

Breakpoint 1, 0xc0002180 in start_here ()
(gdb) p &swapper_pg_dir
$1 = (<data variable, no debug info> *) 0xc0130000


Now at the BDI2000 telnet prompt:

BDI>mm 0xf0 0xc0130000


And the again with GDB;

(gdb) c
Continuing.


Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
I've got to get something inside me. Some coffee  or  something.  And
then the world will somehow be better.
                                     - Terry Pratchett, _Men at Arms_

** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/