OpenBIOS March 2000

openbios@openbios.org

26 participants
40 discussions

USB and I440BX
by Janusz Mlodzianowski 27 Mar '00

27 Mar '00

Hi, I am embarking on a small project in which I would like to use USB. I understand that Intel 440BX chipset (PIIX) PCI-ISA bridge has built in USB circuitry. Are there any examples of BIOS like routines controling this chip. I will not use OS like Windows and VxDs or Linux, just DOS and ROM based software. I also do not care (just for now..) about full blown USB protocol. All what I intend to do is to hook-up two motherboards and transfer via USB raw bytes from one to another. The next step will be a dedicated USB peripherial. What sort of USB chip would you suggest? I looked into NS USBN9602 It seems OK but I would rather use DIL or PLCC chips. Janusz - To unsubscribe: send mail to majordomo(a)freiburg.linux.de with 'unsubscribe openbios' in the body of the message

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yeeee ha!
by Ronald G. Minnich 24 Mar '00

24 Mar '00

(from the web page ...) --- New as of 3/20/00: Success! We're now booting linux out of NVRAM. It gets to the point of wanting to mount a disk, and since I have no disk attached to the motherboard it naturally dies. It seems to properly configure the PCI bus, and finds the Ethernet and other devices and configures them. So now I need to go grab an IDE disk and get it the rest of the way up ... --- Oen remaining problem is speed. I have caching enabled but it takes a very long time to get the gunzip done. I figure there is some other bit I need to set ... I'll do that one later. For now, it's time to attach an IDE disk and see how it goes. ron - To unsubscribe: send mail to majordomo(a)freiburg.linux.de with 'unsubscribe openbios' in the body of the message

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interest
by Ronald G. Minnich 22 Mar '00

22 Mar '00

If any students out there are interested in coming to Los Alamos to work this summer on linuxbios you should get in touch with me. I need help with other motherboards and we want to look at the Alpha. 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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Re: [GENERAL] Re: spontaneous reboots FreeBSD 3.x and 4.0-stable (fwd)
by Ronald G. Minnich 21 Mar '00

21 Mar '00

Here's why we need to KILL the BIOS ron ---------- Forwarded message ---------- Date: Tue, 21 Mar 2000 09:52:57 -0800 From: Arthur M. Kang <arthur(a)levelogic.com> To: Jim Mercer <jim(a)reptiles.org> Cc: "[iso-8859-1] Pawe� Dubin" <paweld(a)suimed.tpnet.pl>, hackers(a)FreeBSD.ORG, pgsql-general(a)postgresql.org Subject: Re: [GENERAL] Re: spontaneous reboots FreeBSD 3.x and 4.0-stable Had this rebooting problem before for a while and it drove me NUTZ! Installed RedHat and FreeBSD and both rebooted periodically. Don't know if my solution will help or not, but what was causing my reboots was the system BIOS. The options for Power Management in the system BIOS should have some settings for the monitor as well as the hard drive. I was finding that the spinning down of the hard drive caused the machine to reboot. No traces in any error logs or anything... Hope that helps somebody...somewhere... :) - To unsubscribe: send mail to majordomo(a)freiburg.linux.de with 'unsubscribe openbios' in the body of the message

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Intel USB Controller 82371FB (PIIX3)
by Ross 21 Mar '00

21 Mar '00

Hi, Guys does anyone know how I can test the USB controller on the intel 82371FB (PIIX3) chipset or know of a web site that has source code in assembly language that will acomplish this. //Ross

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Re: [OpenBIOS] Openbios site at sourceforge.net
by Ross 17 Mar '00

17 Mar '00

Hi, I went to the link below and was asked for a security certificate and could not log. How do you log on to: https://sourceforge.net/project/?group_id=3423 ? //Ross ---------- > From: Chris Davis <cjdavis(a)computer.org> > To: Openbios mailing list <openbios(a)elvis.informatik.uni-freiburg.de> > Subject: [OpenBIOS] Openbios site at sourceforge.net > Date: Friday, March 17, 2000 12:55 PM > > Hello, > > I don't know whether this is useful or not, but I have registered an > OpenBios development stite at Sourceforge.net. You can get to it at > > https://sourceforge.net/project/?group_id=3423 > > or very soon at > > http://openbios.sourceforge.net/ > > There is nothing there yet -- just the basic sourceforge project > structure. But I'll probably put some messaages and files there over > the weekend. > > I don't know if this is useful, and I certainly have NO INTEREST in > 'stealing' the openbios web site away from others. > > Take a look at the site for what is possible there, and let me know > what you think. If there is sufficient interest, I'm willing to devote > some time to this. > > Thanks > Chris Davis > > - > To unsubscribe: send mail to majordomo(a)freiburg.linux.de > with 'unsubscribe openbios' in the body of the message

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Openbios site at sourceforge.net
by Chris Davis 17 Mar '00

17 Mar '00

Hello, I don't know whether this is useful or not, but I have registered an OpenBios development stite at Sourceforge.net. You can get to it at https://sourceforge.net/project/?group_id=3423 or very soon at http://openbios.sourceforge.net/ There is nothing there yet -- just the basic sourceforge project structure. But I'll probably put some messaages and files there over the weekend. I don't know if this is useful, and I certainly have NO INTEREST in 'stealing' the openbios web site away from others. Take a look at the site for what is possible there, and let me know what you think. If there is sufficient interest, I'm willing to devote some time to this. Thanks Chris Davis - To unsubscribe: send mail to majordomo(a)freiburg.linux.de with 'unsubscribe openbios' in the body of the message

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get ints turned on
by Wallace I. Kroeker 17 Mar '00

17 Mar '00

Hello, At least part of the puzzle is getting the PIIX set up. On my system (a 440bx) there is a PIIX4 (sometimes called the SouthBridge I believe) this contains the interrupt handler (it used to be a separate chip(s) on the old systems). In the OpenBIOS code I set mine up in the SuperIO (I generated one for the 440bx) by writing the values out. Code follows: #include <io.h> #include <types.h> #define CS440BX_INDEX 0xf2 #define CS440BX_DATA 0xf3 /* Write val to reg# reg. */ #define WRITE_440BX(reg, val) { \ outb_p(reg, CS440BX_INDEX); \ outb_p(val, CS440BX_DATA); } static struct { u8 reg; u8 val; }sio_regs[] = { { 0x20, 0x11 }, /* ICW1 1st 82C59 setup */ { 0x21, 0x08 }, /* ICW2 1st 82C59 setup */ { 0x21, 0x04 }, /* ICW3 1st 82C59 setup */ { 0x21, 0x01 }, /* ICW4 1st 82C59 setup */ { 0xA0, 0x11 }, /* ICW1 2nd 82C59 setup */ /** Linux put out 0x70 for ICW2 ??? why ??? **/ { 0xA1, 0x08 }, /* ICW2 2nd 82C59 setup */ { 0xA1, 0x02 }, /* ICW3 2nd 82C59 setup */ { 0xA1, 0x01 }, /* ICW4 2nd 82C59 setup */ { 0xff, 0x00 } }; void sio_init(void) { int i; for (i=0; sio_regs[i].reg != 0xff; i++) { WRITE_440BX(sio_regs[i].reg, sio_regs[i].val); } } The documentation states that you need to program them in order from ICW1, ICW2, ICW3, ICW4 for address 0x20 and 0x21 and ICW1, ICW2, ICW3, ICW4 for 0xA0 and 0xA1 Linux also sets up the interrupts on boot (look for the code near code just before "steenking BIOS" in setup.S) This is where he is setting up the interrupt chips as he would like them. Now in both the OpenBIOS and Linux the need to set up the IDT to properly use the interrupt vectors. The OpenBIOS is probably a littler simpler to understand: The OpenBIOS sets up RAMSTART as 0x400 The GDT start at RAMSTART of 0x400 ( note this is mulitply defined in the assembler code and in the header segment.h ... bad form and error prone) The GDT is 0x800 bytes big The IDT starts next at 0xC00. There is some preliminary set up of these in the boot/boot16/start.asm code The code in firmware/init/traps.c does further initializing of the interrupt vector table and viola you get the OpenBIOS firmware responding to interrupts. I have added support for Int 0x13 (floppy read write) in so far as I can issue an int 0x13 as inline assembler in the main.c which cause my interrupt handler to be called. (I gave up on writing the floppy driver as there seems to be some problems getting the floppy to respond properly and it wasn't critical to what I was doing. ) I have spent my time writing a utility for downloading a real OS via the serial port instead and am in the process of getting linux bmvlinux to boot. After I have loaded it into upper memory and vectored to the entry point. I am currently looking into the setup.S code to determine how I should be setting things up to make linux happy. I believe that I still need to do a some preliminary IDT setup (as would come with a regular BIOS) so that Linux can pull it's socks up. (If I put a simple assembly instruction in upper memory and call it, it will return. If I put Linux up there and call it it currently dies.) Another thing that Linux folks should watch out for is that Linux can be compiled to either use BIOS32 (PCI bioses) or do all the PCI enumeration and setup. You should compile your kernel to do it's own PCI enumeration. I have been working on the memory setup and haven't had too much luck yet. (Ron's 440gx code doesn't work for my system even with minor changes for chipset differences etc.) Wallace > -----Original Message----- > From: Ronald G. Minnich [SMTP:rminnich@lanl.gov] > Sent: Thursday, March 16, 2000 9:39 PM > To: openbios(a)elvis.informatik.uni-freiburg.de > Subject: Re: [OpenBIOS] Re: Status > > On Thu, 16 Mar 2000, Edwin Rhodes wrote: > > > i know this may sound real stupid, but have you checked out Ralf Brown's > > Interrupt List? > > Hmm, tell me more. I think I have, but I'm not sure that Ralf tells you > how to init the cold hardware to enable timer interrupts. > > ron > > - > To unsubscribe: send mail to majordomo(a)freiburg.linux.de > with 'unsubscribe openbios' in the body of the message - 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] Unofficial OpenBIOS web page
by Ross 06 Mar '00

06 Mar '00

All of my code has been converted to asm. //Ross ---------- > From: Ronald G. Minnich <rminnich(a)lanl.gov> > To: openbios(a)elvis.informatik.uni-freiburg.de > Subject: Re: [OpenBIOS] Unofficial OpenBIOS web page > Date: Sunday, March 05, 2000 9:24 PM > > On Sun, 5 Mar 2000, Ross wrote: > > 1). a routine in x86 asm code that can test the > > cache memory on the 430XX chipset. > > sorry, I have not looked at the 430xx at all yet. I'm still stuck on the > 440 :-( > > > 2). a routine in x86 asm code that can test the > > the USB Interface on the 430XX chipset. > > oh horrors, usb. > > Question, though: why assembly for the usb. I understand for (1) but not > (2) > > 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] Unofficial OpenBIOS web page
by Ross 06 Mar '00

06 Mar '00

Jeff, I'am working on the i430FX but I want to code this in asm you can call it from C code if you want to. //Ross ---------- > From: Jeff Garzik <jgarzik(a)mandrakesoft.com> > To: Ross <rossio(a)hoeftd.reno.nv.us> > Cc: openbios(a)elvis.informatik.uni-freiburg.de > Subject: Re: [OpenBIOS] Unofficial OpenBIOS web page > Date: Sunday, March 05, 2000 9:41 AM > > Ross wrote: > > 1). a routine in x86 asm code that can test the > > cache memory on the 430XX chipset. > > > > 2). a routine in x86 asm code that can test the > > the USB Interface on the 430XX chipset. > > Why can you not do this in C code? > > Also, my initial contribution to the FreeBIOS project is i430FX support, > so we should work together if you are working on the same chipset. > > Regards, > > Jeff > > > > > > -- > Jeff Garzik | Rule 1: > Building 1024 | There is no cabal. > MandrakeSoft, Inc. | > - > To unsubscribe: send mail to majordomo(a)freiburg.linux.de > with 'unsubscribe openbios' in the body of the message

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