OpenBIOS

openbios@openbios.org

4297 discussions

Now mounting root
by Ronald G Minnich 02 May '00

02 May '00

Thanks to your help, I am now mounting root: Mounted root (ext2 filesystem) readonly <4>Freeing unused kernel memory: 52k freed <4>Warning: unable to open an initial console Part of the problem was in my PCI config, another problem was I had to enable the IDE in Linux, as follows: #define LINUXBIOS #ifndef LINUXBIOS if (e->reg && (pci_read_config_byte(dev, e->reg, &tmp) || (tmp & e->mask) != e->val)) continue; /* port not enabled */ #else /* force 'em on! */ if (e->reg) { pci_read_config_byte(dev, e->reg, &tmp); tmp |= e->val; pci_write_config_byte(dev, e->reg, tmp); printk("%s: LINUXBIOS, so Jammed the enable on!\n", d->name); } #endif So in the LINUXBIOS case you know that no BIOS was there to do things, so you just turn the IDE on. I die on opening the initial console. That's the next barrier to multiuser boot. Any hints welcome .... I've attached my .config and the command line I'm using is: command_line="root=/dev/hda1 serial=1,9600n8 console=ttyS1,9600"; I have to go back and look, But I think it should be: command_line="root=/dev/hda1 serial=0,9600n8 console=ttyS0,9600"; Please let me know if you know ... I'm putting a snapshot on the web page in a few minutes. ron

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OK, sercons is not the problem
by Ronald G Minnich 02 May '00

02 May '00

It's dying when it tries to run /sbin/init. Since I have no support for executables in this kernel I'm not surprised. I'll let you know how it goes when I add it in. ron - To unsubscribe: send mail to majordomo(a)freiburg.linux.de with 'unsubscribe openbios' in the body of the message

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Two logs from pci startup
by Ronald G Minnich 02 May '00

02 May '00

First log is from my linuxbios startup, for a copy go to www.acl.lanl.gov/linuxbios. Second is from 2.3.99 startup with pci debugging turned on. Strange stuff on boot, comments about 64-bit addresses (?? set smoething wrong in memory attributes in BAR?) etc. See what you think. If we can get this one licked we're going to boot!! Note the bogomips and mhz numbers actually make sense. This is good. Also the APIC support in 2.3.99 seems to work on uniprocessors, yee ha. ron

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Re: [OpenBIOS] current ugly pci config code.
by Colin Jensen 01 May '00

01 May '00

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 26 Apr '00

26 Apr '00

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 25 Apr '00

25 Apr '00

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 25 Apr '00

25 Apr '00

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 18 Apr '00

18 Apr '00

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 14 Apr '00

14 Apr '00

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 13 Apr '00

13 Apr '00

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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