April 2000 - OpenBIOS - mail.coreboot.org

OT: linux kernel problem
by Edwin Rhodes July 16, 2000

July 16, 2000

when compiling my linux kernel i keep on recieving this message: Warning: Clock Skew Detected Build May Be Incomplete It seams to compile ok. What does this error message mean?? and how can i fix it. thanks edwin ps. I have only been getting this message since i upgraded to an AMD K6-2 500Mhz.

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Re: [OpenBIOS] current ugly pci config code.
by Colin Jensen May 1, 2000

May 1, 2000

On Tue, 25 Apr 2000, Ronald G Minnich wrote: > It also thinks IDE is disabled, even though the debug prints show that I'm > turning on the relevant bits. Did you enable Memory, IO, and Bus Master on the IDE? You need Mem and IO enabled even if there are no memory regions associated with the device -- I'm assuming that if I possessed the PCI IDE spec, it would tell me that a PCI IDE device receives ISA bus cycles or some crazy thing like that. Sorry I can't explain WHY it needs these -- I don't know :-). But when I was programming the bus for my project, I found I needed them. - To unsubscribe: send mail to majordomo(a)freiburg.linux.de with 'unsubscribe openbios' in the body of the message

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OK, version -1 is there.
by Ronald G Minnich April 26, 2000

April 26, 2000

www.acl.lanl.gov/linuxbios, just suck down the link in the latest news (in 10-15 minutes or so ... it gets copied out via crond). A few notes: 1) Don't even bother getting it unless you are comfortable with assembly code and hardware 2) I only support two motherboards. PLEASE read the notes in bios/freebios. To make a linuxbios for one of the two supported motherboards, you: cd bios/freebios/linuxbios/L440GX make or cd bios/freebios/linuxbios/SIS630 make Now, for L440GX, it can build a set of files to be loaded onto the Intel phlash disk. You need to get that disk first. You need to learn now to 'recovery load' a bios. If you don't have an Arium or other ICE, you're dead! For the SIS630, it builds a 512K rom image that you burn with a burner. In each directory there are ROOTDOIT scripts to show you what happens next. Please follow this structure! It makes it simpler to host multiple motherboards. There are some subtleties in places, feel free to ask questions. linuxbios is now hosted from majordomo(a)lanl.gov, and is open to all to join. Feel free to join if your main interest in this is linuxbios. questions to me. Current issues: SDRAM config on L440GX and SIS630. PCI config. But it is *close*. ron - To unsubscribe: send mail to majordomo(a)freiburg.linux.de with 'unsubscribe openbios' in the body of the message

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PCI config code.
by Ronald G Minnich April 25, 2000

April 25, 2000

I know I asked this already, but I'm checking again. I'm close to mounting root but Linux PCI config code is just not able to handle memory space access when no BIOS has set it. Does anyone have pci config code they can donate to the cause. Thanks ron - To unsubscribe: send mail to majordomo(a)freiburg.linux.de with 'unsubscribe openbios' in the body of the message

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linuxbios release
by Ronald G Minnich April 25, 2000

April 25, 2000

OK, I got the release today. I have to put copyright notices in some things and then I can put it on the web page. I am going to put out the "very pre-alpha" version. This is clearly not ready for prime-time use, and you really need to have an ICE to get work done. But I believe getting something on the page is better than any more waiting. Please don't mess with this thing unless you're set up to do so. You need a way to burn the NVRAM, you need an ICE, and you need some expertise -- this isn't a red hat install! I was hoping to put out a full booting version but PCI is being a pain. I want to get it configured in a way that works long term. It really does seem that 2.3.99pre5 is just about there in being able to set up pci, but it has a few bugs yet. I am pursuing fixing those bugs. ron - To unsubscribe: send mail to majordomo(a)freiburg.linux.de with 'unsubscribe openbios' in the body of the message

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dead link?
by Edwin Rhodes April 18, 2000

April 18, 2000

hi i just tried to access: http://www.acl.lanl.gov/linuxbios/www.sourceforge.net and i get a page cannot be found error. dead link??? well done anyway! edwin ps. is there anything i can do to help?

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got it!
by Ronald G Minnich April 14, 2000

April 14, 2000

OK, I've got linuxbios up and running under freebios. I've made the changes to freebios that I outlined earlier, to wit: 10 instructions, and you're in protected mode using the NVRAM-based gdt. 30 lines of macros, DRAM is up and you jump to C. In C, you turn on caching, set things in the PIIX4E so it's right, set up minimal MTRRs so that caching is *really* on, etc., etc. and then gunzip linux and jump to it. Then linux fails to boot as I have no SMP tables :-) I have to yank these off a running system. I may take a break from this miserable intel mainboard and cut over to SiS for a few days, once I get a flash burner that is ... Man is this nice. I recommend openbios folks look at freebios structure, because: NO MORE ASSEMBLY! ron - To unsubscribe: send mail to majordomo(a)freiburg.linux.de with 'unsubscribe openbios' in the body of the message

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SMP BIOS
by Konstantin Zhidkov April 13, 2000

April 13, 2000

Hello Ron, I plan to implement version 1.1 of the MP Specification, including initialization of the APICs. I got dual CPU MB for this, and this was an L440GX+. Could post your lastest hardware-related code (i.e. drivers)? This may save some keystrokes for me... Konstantin - To unsubscribe: send mail to majordomo(a)freiburg.linux.de with 'unsubscribe openbios' in the body of the message

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state of play for freebios/linuxbios
by Ronald G. Minnich April 7, 2000

April 7, 2000

I have it going into protected mode basically instantly. I am loading a GDT from the NVRAM and it works just great. I have the DRAM up (with only one simm, but...). Having the machine in protected mode from the very start is SO MUCH BETTER. DRAM config is really going to be easy! The automake is not as helpful as I hoped. I am finding that compared to all the things I've seen I still like Berkeley 'config' the best for this sort of thing ... ron - To unsubscribe: send mail to majordomo(a)freiburg.linux.de with 'unsubscribe openbios' in the body of the message

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RE: [OpenBIOS] VESA & DMA
by Marcus Gossner April 7, 2000

April 7, 2000

>Hi everybody, > >This has not much to do with the OpenBIOS project, but with low level >programming. Everyone here seems to know lot of things in this domain, >that's why i'm asking to all of u those questions : > >1. Can we setup a VESA 2 (not VESA 3 !) configuration (select video >mode, and everything) without making a int 0x10 ? We're programming a >protected mode OS, and switching to VM86 sucks. I know it's possible >with VESA 3, but with VESA 2 ? >If yes, do you have any docs about it ? I think it is NOT possible without INT 10. Have a look at Ralph Brown's Interrupt list: http://www.cs.cmu.edu/afs/cs.cmu.edu/user/ralf/pub/WWW/files.html and look at INT 10/AX=4F0A. >Is the int 0x10 VESA code specific to each graphic card ? No. >2. I've got a problem with DMA programming, here's my source : > (....) >I use it to transfer a sector from the floppy disk. Do you see anything >wrong in this code ? >The transfer is not made by the floppy, and i don't know why... >I don't know if it's in the DMA programming, or in the floppy driver >.............. I'm not sure, but I think the floppy don't support DMA and it is as default disabled by the floppy controller. >Help ! > >Thanks, > >Thomas, from france Marcus - To unsubscribe: send mail to majordomo(a)freiburg.linux.de with 'unsubscribe openbios' in the body of the message

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