Hello, I have kernel 2.4.4 and I do have MMU XLAT and latest BDI firmware from Abatron and I am not able to get translation to work. I have tried the following
target remote bdi:2001 b start_here p &swapper_pg_dir then at BDI2000 telnet prompt, mm 0xf0 <address_swapper_pg_dir> that didn't help. I got the latest 2.4 _devel kernel and there are lot of changes that I need to merge into my source, I was looking for a short term fix to get translation to work. Has anybody gotten gdb to work correctly with Abatron 2000 on linux 2.4.4 kernel? /Subodh -----Original Message----- From: Wolfgang Denk [mailto:[EMAIL PROTECTED] Sent: Friday, September 14, 2001 4:30 AM To: Michael Habermann Cc: linuxppc-embedded at lists.linuxppc.org Subject: Re: MMU and BDI2000 In message <5.1.0.14.0.20010914174808.026db880 at pop.gmx.de> you wrote: > > I've not found a BDI newsgroup or FAQ so I'm sorry Maybe we should start a mailing list. > But I get problems debugging variables. The BDI often prints: > '*** MMU: address translation for 0xC100B288 failed', ... > [TARGET] > CPUTYPE MPC800 > CPUCLOCK 25000000 ;the CPU clock rate after processing the init list > BDIMODE AGENT ;the BDI working mode (LOADONLY | AGENT) > BREAKMODE HARD ;SOFT or HARD, HARD uses PPC hardware breakpoints > MMU XLAT Are you using latest BDI2000 firmware? I'm missing a PTBASE definition in this section - without it only 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". Please note that the 2.4.4 kernel on our FTP server does not yet include the automatic update of the BDI page table information structure mentioned in the BDI2000 manual. We will have this in the next version (as soon as it's running stable). Wolfgang Denk -- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd at denx.de Is a computer language with goto's totally Wirth-less? ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
