On Thu, 2007-05-10 at 00:08 -0400, Corey Osgood wrote: > roger wrote: > > BTW: I've set up my asus/p2b/auto.c to mimmick the tyan/s1846/auto.c > > > > So DRAM *should* be working and getting to at least elfboot. > > > > Only things I can think of would be DRAM timing too. > > roger, only test with one dimm for now, single sided if possible, and in > the first slot. It's very possible that dram init is only working for > the first dimm. Once that's working, try to get the rest going. And > afaik, the timings being used right now (CL3) should be safe/sane for > any sdram dimm. Also check that your dimm(s) are capable of running the > same speed as your cpu's frontside bus, I haven't looked at the code > recently but I'm going to guess that it's still set up to statically set > the ram to the same speed as the fsb. When I was working with it, I was > using an old 466MHz celeron (66MHz*7) and PC100 ram to make sure this > was a non-issue. Let me know if you need a cpu with a slower fsb, I must > have a few dozen old celerons and pentium 2s kicking around, socket 370 > and slot 1. > > Also, asus p2b's auto.c is fixed in the latest revisions ;) > > Good luck! > -Corey
Thanks for the Good luck! .. think it helped.. noticed, as usual, I was using DIMM Bank 2 instead of 0. Now it boots. So the main issue, DIMM Banks 1 & 2 (for this 3 DIMM Bank board) needs to be empty and only one DIMM in Bank 0! Here's proof. Granted, it only shows "Jumping to Linuxbios" Ram4 Testing DRAM : 00000000-0009ffff DRAM fill: 00000000-0009ffff 000a0000 DRAM filled DRAM verify: 00000000-0009ffff 000a0000 DRAM range verified. Done. Testing DRAM : 00100000-007c0000 DRAM fill: 00100000-007c0000 007c0000 DRAM filled DRAM verify: 00100000-007c0000 007c0000 DRAM range verified. Done. Copying LinuxBIOS to RAM. Jumping to LinuxBIOS. LinuxBIOS-2.0.0.0Fallback Wed May 9 15:55:10 PDT 2007 booting... I should be seeing next roughly "end 35a51f17, start 1" and PCI enumerating. More stuff to look over at this point as the Config.lb isn't entirely filled with PCI bus data.) -- Roger http://www.eskimo.com/~roger/index.html Key fingerprint = 8977 A252 2623 F567 70CD 1261 640F C963 1005 1D61 Wed May 9 22:39:30 PDT 2007 -- linuxbios mailing list [email protected] http://www.linuxbios.org/mailman/listinfo/linuxbios
