coreboot October 2004

coreboot@coreboot.org

45 participants
197 discussions

RE: testbios loops?
by Dave Aubin 08 Oct '04

08 Oct '04

Starting up X causes bad things, ie hang! I'm building the log now and will send in separate message. Thanks, Dave -----Original Message----- From: Richard Smith [mailto:rsmith@bitworks.com] Sent: Friday, October 08, 2004 11:15 AM To: stepan(a)openbios.org; Dave Aubin Cc: linuxbios(a)clustermatic.org Subject: Re: testbios loops? Stefan Reinauer wrote: > * Dave Aubin <daubin(a)actuality-systems.com> [041008 16:35]: >> I went back to trying to get the Nvida 6800gt card's bios, but still >>even with dd -if=/dev/mem of=vgabios.rom skip=786432 bs=1 count=32768 >>I get the same binary as dd -if=/dev/mem of=vgabios.rom skip=1536 >>count=64. > > Does the bios have a valid pci option rom signature? (55aa plus the > other stuff, see romheaders utility in the openbios tree) Or use hd and see whats at 0xc0000. Also fire up X and look at your log. It outputs a lot of good info. -- Richard A. Smith

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Re: testbios loops?
by Stefan Reinauer 08 Oct '04

08 Oct '04

* Dave Aubin <daubin(a)actuality-systems.com> [041008 16:35]: > Hi, > > I went back to trying to get the Nvida 6800gt card's bios, but still > even with dd -if=/dev/mem of=vgabios.rom skip=786432 bs=1 count=32768 > I get the same binary as dd -if=/dev/mem of=vgabios.rom skip=1536 > count=64. Does the bios have a valid pci option rom signature? (55aa plus the other stuff, see romheaders utility in the openbios tree) Stefan

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RE: testbios loops?
by Li-Ta Lo 08 Oct '04

08 Oct '04

On Fri, 2004-10-08 at 09:04, Dave Aubin wrote: > Hi, > > Oh it does. I just left that snippet out. It starts at the correct > place:) > Then there is a big problem. The code just to somewhere that is not code (0000). Can you send more messages ? Ollie > -----Original Message----- > From: Li-Ta Lo [mailto:ollie@lanl.gov] > Sent: Friday, October 08, 2004 11:02 AM > To: Dave Aubin > Cc: LinuxBIOS > Subject: RE: testbios loops? > > On Fri, 2004-10-08 at 08:58, Dave Aubin wrote: > > Hi, > > Why it starts from c000:fffd ? It should starts from c000:0003 > > Ollie > > > > > It will first do this (I'm using the testbios -t option) > > c000:fffd 0000 ADD [BX+SI],AL > > AX=0200 BX=0000 CX=0000 DX=0080 SP=fff8 BP=0000 SI=0000 > > DI=0000 > > DS=0040 ES=0000 SS=0030 CS=c000 IP=0002 NV UP DI PL ZR > NA > > PE NC > > c000:ffff 000000 ADD -86[DI],DL > > AX=0200 BX=0000 CX=0000 DX=0080 SP=fff8 BP=0000 SI=0000 > > DI=0000 > > DS=0040 ES=0000 SS=0030 CS=c000 IP=0004 NV UP DI NG NZ > NA > > PO NC > > c000:0002 74eb JZ ffef > > AX=0200 BX=0000 CX=0000 DX=0080 SP=fff8 BP=0000 SI=0000 > > DI=0000 > > DS=0040 ES=0000 SS=0030 CS=c000 IP=0005 NV UP DI NG NZ > NA > > PO NC > > c000:0004 4b DEC BX > > AX=0200 BX=ffff CX=0000 DX=0080 SP=fff8 BP=0000 SI=0000 > > DI=0000 > > DS=0040 ES=0000 SS=0030 CS=c000 IP=0006 NV UP DI NG NZ > AC > > PE NC > > c000:0005 37 AAA > > AX=0306 BX=ffff CX=0000 DX=0080 SP=fff8 BP=0000 SI=0000 > > DI=0000 > > DS=0040 ES=0000 SS=0030 CS=c000 IP=0008 NV UP DI PL NZ > AC > > PE CY > > > > Then it will do this: > > c000:0137 0d0a00 OR AX,a > > AX=debf BX=ffff CX=0335 DX=0080 SP=ffef BP=0000 SI=0004 > > DI=0002 > > DS=0040 ES=0000 SS=0030 CS=c000 IP=013c NV UP DI NG NZ > NA > > PO NC > > c000:013a 0000 ADD [BX+SI],AL > > AX=debf BX=ffff CX=0335 DX=0080 SP=ffef BP=0000 SI=0004 > > DI=0002 > > DS=0040 ES=0000 SS=0030 CS=c000 IP=013f NV UP DI NG NZ > AC > > PO CY > > c000:013c ba9198 MOV DX,9891 > > AX=debf BX=ffff CX=0335 DX=9891 SP=ffef BP=0000 SI=0004 > > DI=0002 > > DS=0040 ES=0000 SS=0030 CS=c000 IP=0140 NV UP DI NG NZ > AC > > PO CY > > c000:013f 96 XCHG AX,SI > > AX=0004 BX=ffff CX=0335 DX=9891 SP=ffef BP=0000 SI=debf > > DI=0002 > > DS=0040 ES=0000 SS=0030 CS=c000 IP=0141 NV UP DI NG NZ > AC > > PO CY > > c000:0140 91 XCHG AX,CX > > AX=0335 BX=ffff CX=0004 DX=9891 SP=ffef BP=0000 SI=debf > > DI=0002 > > DS=0040 ES=0000 SS=0030 CS=c000 IP=0146 NV UP DI NG NZ > AC > > PO CY > > c000:0141 9a9a8d9691 CALL 9196:8d9a > > AX=0335 BX=ffff CX=0004 DX=9891 SP=ffeb BP=0000 SI=debf > > DI=0002 > > DS=0040 ES=0000 SS=0030 CS=9196 IP=8d9c NV UP DI NG NZ > AC > > PO CY > > 9196:8d9a 0000 ADD [BX+SI],AL > > AX=0335 BX=ffff CX=0004 DX=9891 SP=ffeb BP=0000 SI=debf > > DI=0002 > > DS=0040 ES=0000 SS=0030 CS=9196 IP=8d9e NV UP DI PL NZ > NA > > PE NC > > 9196:8d9c 0000 ADD [BX+SI],AL > > AX=0335 BX=ffff CX=0004 DX=9891 SP=ffeb BP=0000 SI=debf > > DI=0002 > > DS=0040 ES=0000 SS=0030 CS=9196 IP=8da0 NV UP DI PL NZ > NA > > PE NC > > > > I'm still looking for the openbios utility. So far found broken > > links:( I can get some other bios to work, but they appear to be > > flacky. I really think I should be using the one that came programmed > > > on the board. > > > > Thanks, > > Dave > > > > -----Original Message----- > > From: Li-Ta Lo [mailto:ollie@lanl.gov] > > Sent: Friday, October 08, 2004 10:53 AM > > To: Dave Aubin > > Cc: LinuxBIOS > > Subject: Re: testbios loops? > > > > On Fri, 2004-10-08 at 08:35, Dave Aubin wrote: > > > Hi, > > > > > > I went back to trying to get the Nvida 6800gt card's bios, but > > > still > > > > > even with dd -if=/dev/mem of=vgabios.rom skip=786432 bs=1 > > > count=32768 I get the same binary as dd -if=/dev/mem of=vgabios.rom > > > skip=1536 count=64. > > > I used dhex (free util) to verify they are the same. > > > What happens when I run them trough testbios is that once it is > > > done > > > > > programming 0xc7fff it jump to 0x9 something or other and the video > > > bios isn't programmed correctly. > > > > > > What do you mean by 'programming oxc7ff it jump to 0x9' ? > > > > Ollie > > > > > > > >

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RE: testbios loops?
by Li-Ta Lo 08 Oct '04

08 Oct '04

On Fri, 2004-10-08 at 08:58, Dave Aubin wrote: > Hi, Why it starts from c000:fffd ? It should starts from c000:0003 Ollie > > It will first do this (I'm using the testbios -t option) > c000:fffd 0000 ADD [BX+SI],AL > AX=0200 BX=0000 CX=0000 DX=0080 SP=fff8 BP=0000 SI=0000 > DI=0000 > DS=0040 ES=0000 SS=0030 CS=c000 IP=0002 NV UP DI PL ZR NA > PE NC > c000:ffff 000000 ADD -86[DI],DL > AX=0200 BX=0000 CX=0000 DX=0080 SP=fff8 BP=0000 SI=0000 > DI=0000 > DS=0040 ES=0000 SS=0030 CS=c000 IP=0004 NV UP DI NG NZ NA > PO NC > c000:0002 74eb JZ ffef > AX=0200 BX=0000 CX=0000 DX=0080 SP=fff8 BP=0000 SI=0000 > DI=0000 > DS=0040 ES=0000 SS=0030 CS=c000 IP=0005 NV UP DI NG NZ NA > PO NC > c000:0004 4b DEC BX > AX=0200 BX=ffff CX=0000 DX=0080 SP=fff8 BP=0000 SI=0000 > DI=0000 > DS=0040 ES=0000 SS=0030 CS=c000 IP=0006 NV UP DI NG NZ AC > PE NC > c000:0005 37 AAA > AX=0306 BX=ffff CX=0000 DX=0080 SP=fff8 BP=0000 SI=0000 > DI=0000 > DS=0040 ES=0000 SS=0030 CS=c000 IP=0008 NV UP DI PL NZ AC > PE CY > > Then it will do this: > c000:0137 0d0a00 OR AX,a > AX=debf BX=ffff CX=0335 DX=0080 SP=ffef BP=0000 SI=0004 > DI=0002 > DS=0040 ES=0000 SS=0030 CS=c000 IP=013c NV UP DI NG NZ NA > PO NC > c000:013a 0000 ADD [BX+SI],AL > AX=debf BX=ffff CX=0335 DX=0080 SP=ffef BP=0000 SI=0004 > DI=0002 > DS=0040 ES=0000 SS=0030 CS=c000 IP=013f NV UP DI NG NZ AC > PO CY > c000:013c ba9198 MOV DX,9891 > AX=debf BX=ffff CX=0335 DX=9891 SP=ffef BP=0000 SI=0004 > DI=0002 > DS=0040 ES=0000 SS=0030 CS=c000 IP=0140 NV UP DI NG NZ AC > PO CY > c000:013f 96 XCHG AX,SI > AX=0004 BX=ffff CX=0335 DX=9891 SP=ffef BP=0000 SI=debf > DI=0002 > DS=0040 ES=0000 SS=0030 CS=c000 IP=0141 NV UP DI NG NZ AC > PO CY > c000:0140 91 XCHG AX,CX > AX=0335 BX=ffff CX=0004 DX=9891 SP=ffef BP=0000 SI=debf > DI=0002 > DS=0040 ES=0000 SS=0030 CS=c000 IP=0146 NV UP DI NG NZ AC > PO CY > c000:0141 9a9a8d9691 CALL 9196:8d9a > AX=0335 BX=ffff CX=0004 DX=9891 SP=ffeb BP=0000 SI=debf > DI=0002 > DS=0040 ES=0000 SS=0030 CS=9196 IP=8d9c NV UP DI NG NZ AC > PO CY > 9196:8d9a 0000 ADD [BX+SI],AL > AX=0335 BX=ffff CX=0004 DX=9891 SP=ffeb BP=0000 SI=debf > DI=0002 > DS=0040 ES=0000 SS=0030 CS=9196 IP=8d9e NV UP DI PL NZ NA > PE NC > 9196:8d9c 0000 ADD [BX+SI],AL > AX=0335 BX=ffff CX=0004 DX=9891 SP=ffeb BP=0000 SI=debf > DI=0002 > DS=0040 ES=0000 SS=0030 CS=9196 IP=8da0 NV UP DI PL NZ NA > PE NC > > I'm still looking for the openbios utility. So far found broken links:( > I can get some other bios to work, but they appear to be flacky. I > really think > I should be using the one that came programmed on the board. > > Thanks, > Dave > > -----Original Message----- > From: Li-Ta Lo [mailto:ollie@lanl.gov] > Sent: Friday, October 08, 2004 10:53 AM > To: Dave Aubin > Cc: LinuxBIOS > Subject: Re: testbios loops? > > On Fri, 2004-10-08 at 08:35, Dave Aubin wrote: > > Hi, > > > > I went back to trying to get the Nvida 6800gt card's bios, but still > > > even with dd -if=/dev/mem of=vgabios.rom skip=786432 bs=1 count=32768 > > I get the same binary as dd -if=/dev/mem of=vgabios.rom skip=1536 > > count=64. > > I used dhex (free util) to verify they are the same. > > What happens when I run them trough testbios is that once it is done > > > programming 0xc7fff it jump to 0x9 something or other and the video > > bios isn't programmed correctly. > > > What do you mean by 'programming oxc7ff it jump to 0x9' ? > > Ollie > > >

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RE: testbios loops?
by Dave Aubin 08 Oct '04

08 Oct '04

Hi, Oh it does. I just left that snippet out. It starts at the correct place:) -----Original Message----- From: Li-Ta Lo [mailto:ollie@lanl.gov] Sent: Friday, October 08, 2004 11:02 AM To: Dave Aubin Cc: LinuxBIOS Subject: RE: testbios loops? On Fri, 2004-10-08 at 08:58, Dave Aubin wrote: > Hi, Why it starts from c000:fffd ? It should starts from c000:0003 Ollie > > It will first do this (I'm using the testbios -t option) > c000:fffd 0000 ADD [BX+SI],AL > AX=0200 BX=0000 CX=0000 DX=0080 SP=fff8 BP=0000 SI=0000 > DI=0000 > DS=0040 ES=0000 SS=0030 CS=c000 IP=0002 NV UP DI PL ZR NA > PE NC > c000:ffff 000000 ADD -86[DI],DL > AX=0200 BX=0000 CX=0000 DX=0080 SP=fff8 BP=0000 SI=0000 > DI=0000 > DS=0040 ES=0000 SS=0030 CS=c000 IP=0004 NV UP DI NG NZ NA > PO NC > c000:0002 74eb JZ ffef > AX=0200 BX=0000 CX=0000 DX=0080 SP=fff8 BP=0000 SI=0000 > DI=0000 > DS=0040 ES=0000 SS=0030 CS=c000 IP=0005 NV UP DI NG NZ NA > PO NC > c000:0004 4b DEC BX > AX=0200 BX=ffff CX=0000 DX=0080 SP=fff8 BP=0000 SI=0000 > DI=0000 > DS=0040 ES=0000 SS=0030 CS=c000 IP=0006 NV UP DI NG NZ AC > PE NC > c000:0005 37 AAA > AX=0306 BX=ffff CX=0000 DX=0080 SP=fff8 BP=0000 SI=0000 > DI=0000 > DS=0040 ES=0000 SS=0030 CS=c000 IP=0008 NV UP DI PL NZ AC > PE CY > > Then it will do this: > c000:0137 0d0a00 OR AX,a > AX=debf BX=ffff CX=0335 DX=0080 SP=ffef BP=0000 SI=0004 > DI=0002 > DS=0040 ES=0000 SS=0030 CS=c000 IP=013c NV UP DI NG NZ NA > PO NC > c000:013a 0000 ADD [BX+SI],AL > AX=debf BX=ffff CX=0335 DX=0080 SP=ffef BP=0000 SI=0004 > DI=0002 > DS=0040 ES=0000 SS=0030 CS=c000 IP=013f NV UP DI NG NZ AC > PO CY > c000:013c ba9198 MOV DX,9891 > AX=debf BX=ffff CX=0335 DX=9891 SP=ffef BP=0000 SI=0004 > DI=0002 > DS=0040 ES=0000 SS=0030 CS=c000 IP=0140 NV UP DI NG NZ AC > PO CY > c000:013f 96 XCHG AX,SI > AX=0004 BX=ffff CX=0335 DX=9891 SP=ffef BP=0000 SI=debf > DI=0002 > DS=0040 ES=0000 SS=0030 CS=c000 IP=0141 NV UP DI NG NZ AC > PO CY > c000:0140 91 XCHG AX,CX > AX=0335 BX=ffff CX=0004 DX=9891 SP=ffef BP=0000 SI=debf > DI=0002 > DS=0040 ES=0000 SS=0030 CS=c000 IP=0146 NV UP DI NG NZ AC > PO CY > c000:0141 9a9a8d9691 CALL 9196:8d9a > AX=0335 BX=ffff CX=0004 DX=9891 SP=ffeb BP=0000 SI=debf > DI=0002 > DS=0040 ES=0000 SS=0030 CS=9196 IP=8d9c NV UP DI NG NZ AC > PO CY > 9196:8d9a 0000 ADD [BX+SI],AL > AX=0335 BX=ffff CX=0004 DX=9891 SP=ffeb BP=0000 SI=debf > DI=0002 > DS=0040 ES=0000 SS=0030 CS=9196 IP=8d9e NV UP DI PL NZ NA > PE NC > 9196:8d9c 0000 ADD [BX+SI],AL > AX=0335 BX=ffff CX=0004 DX=9891 SP=ffeb BP=0000 SI=debf > DI=0002 > DS=0040 ES=0000 SS=0030 CS=9196 IP=8da0 NV UP DI PL NZ NA > PE NC > > I'm still looking for the openbios utility. So far found broken > links:( I can get some other bios to work, but they appear to be > flacky. I really think I should be using the one that came programmed > on the board. > > Thanks, > Dave > > -----Original Message----- > From: Li-Ta Lo [mailto:ollie@lanl.gov] > Sent: Friday, October 08, 2004 10:53 AM > To: Dave Aubin > Cc: LinuxBIOS > Subject: Re: testbios loops? > > On Fri, 2004-10-08 at 08:35, Dave Aubin wrote: > > Hi, > > > > I went back to trying to get the Nvida 6800gt card's bios, but > > still > > > even with dd -if=/dev/mem of=vgabios.rom skip=786432 bs=1 > > count=32768 I get the same binary as dd -if=/dev/mem of=vgabios.rom > > skip=1536 count=64. > > I used dhex (free util) to verify they are the same. > > What happens when I run them trough testbios is that once it is > > done > > > programming 0xc7fff it jump to 0x9 something or other and the video > > bios isn't programmed correctly. > > > What do you mean by 'programming oxc7ff it jump to 0x9' ? > > Ollie > > >

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RE: testbios loops?
by Dave Aubin 08 Oct '04

08 Oct '04

I got it and here are the results: daubin@buildserver1:~/tmp/utils> ./romheaders /common/home/daubin/vgabios-1.rom Image 1: PCI Expansion ROM Header: Signature: 0x55aa (Ok) CPU unique data: 0x74 0xeb 0x4b 0x37 0x34 0x30 0x30 0xe9 0x4c 0x19 0x77 0xcc 0x56 0x49 0x44 0x45 Pointer to PCI Data Structure: 0x0090 PCI Data Structure: Signature: 'PCIR' (Ok) Vendor ID: 0x10de Device ID: 0x0045 Reserved: 0x0000 PCI Data Structure Length: 0x0018 (24 bytes) PCI Data Structure Revision: 0x00 Class Code: 0x000300 (VGA Display) Image Length: 0x0074 blocks (59392 bytes) Revision Level of Code/Data: 0x0001 Code Type: 0x00 (Intel x86) Indicator: 0x80 (last image in rom) Reserved: 0x0000 Platform specific data for x86 compliant option rom: Initialization Size: 0x74 (59392 bytes) Entry point for INIT function: 0x50 Can you please help explain this to me:) Thanks, Dave:) -----Original Message----- From: Stefan Reinauer [mailto:stepan@openbios.org] Sent: Friday, October 08, 2004 10:49 AM To: Dave Aubin Cc: linuxbios(a)clustermatic.org Subject: Re: testbios loops? * Dave Aubin <daubin(a)actuality-systems.com> [041008 16:35]: > Hi, > > I went back to trying to get the Nvida 6800gt card's bios, but still > even with dd -if=/dev/mem of=vgabios.rom skip=786432 bs=1 count=32768 > I get the same binary as dd -if=/dev/mem of=vgabios.rom skip=1536 > count=64. Does the bios have a valid pci option rom signature? (55aa plus the other stuff, see romheaders utility in the openbios tree) Stefan

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RE: testbios loops?
by Dave Aubin 08 Oct '04

08 Oct '04

Hi, It will first do this (I'm using the testbios -t option) c000:fffd 0000 ADD [BX+SI],AL AX=0200 BX=0000 CX=0000 DX=0080 SP=fff8 BP=0000 SI=0000 DI=0000 DS=0040 ES=0000 SS=0030 CS=c000 IP=0002 NV UP DI PL ZR NA PE NC c000:ffff 000000 ADD -86[DI],DL AX=0200 BX=0000 CX=0000 DX=0080 SP=fff8 BP=0000 SI=0000 DI=0000 DS=0040 ES=0000 SS=0030 CS=c000 IP=0004 NV UP DI NG NZ NA PO NC c000:0002 74eb JZ ffef AX=0200 BX=0000 CX=0000 DX=0080 SP=fff8 BP=0000 SI=0000 DI=0000 DS=0040 ES=0000 SS=0030 CS=c000 IP=0005 NV UP DI NG NZ NA PO NC c000:0004 4b DEC BX AX=0200 BX=ffff CX=0000 DX=0080 SP=fff8 BP=0000 SI=0000 DI=0000 DS=0040 ES=0000 SS=0030 CS=c000 IP=0006 NV UP DI NG NZ AC PE NC c000:0005 37 AAA AX=0306 BX=ffff CX=0000 DX=0080 SP=fff8 BP=0000 SI=0000 DI=0000 DS=0040 ES=0000 SS=0030 CS=c000 IP=0008 NV UP DI PL NZ AC PE CY Then it will do this: c000:0137 0d0a00 OR AX,a AX=debf BX=ffff CX=0335 DX=0080 SP=ffef BP=0000 SI=0004 DI=0002 DS=0040 ES=0000 SS=0030 CS=c000 IP=013c NV UP DI NG NZ NA PO NC c000:013a 0000 ADD [BX+SI],AL AX=debf BX=ffff CX=0335 DX=0080 SP=ffef BP=0000 SI=0004 DI=0002 DS=0040 ES=0000 SS=0030 CS=c000 IP=013f NV UP DI NG NZ AC PO CY c000:013c ba9198 MOV DX,9891 AX=debf BX=ffff CX=0335 DX=9891 SP=ffef BP=0000 SI=0004 DI=0002 DS=0040 ES=0000 SS=0030 CS=c000 IP=0140 NV UP DI NG NZ AC PO CY c000:013f 96 XCHG AX,SI AX=0004 BX=ffff CX=0335 DX=9891 SP=ffef BP=0000 SI=debf DI=0002 DS=0040 ES=0000 SS=0030 CS=c000 IP=0141 NV UP DI NG NZ AC PO CY c000:0140 91 XCHG AX,CX AX=0335 BX=ffff CX=0004 DX=9891 SP=ffef BP=0000 SI=debf DI=0002 DS=0040 ES=0000 SS=0030 CS=c000 IP=0146 NV UP DI NG NZ AC PO CY c000:0141 9a9a8d9691 CALL 9196:8d9a AX=0335 BX=ffff CX=0004 DX=9891 SP=ffeb BP=0000 SI=debf DI=0002 DS=0040 ES=0000 SS=0030 CS=9196 IP=8d9c NV UP DI NG NZ AC PO CY 9196:8d9a 0000 ADD [BX+SI],AL AX=0335 BX=ffff CX=0004 DX=9891 SP=ffeb BP=0000 SI=debf DI=0002 DS=0040 ES=0000 SS=0030 CS=9196 IP=8d9e NV UP DI PL NZ NA PE NC 9196:8d9c 0000 ADD [BX+SI],AL AX=0335 BX=ffff CX=0004 DX=9891 SP=ffeb BP=0000 SI=debf DI=0002 DS=0040 ES=0000 SS=0030 CS=9196 IP=8da0 NV UP DI PL NZ NA PE NC I'm still looking for the openbios utility. So far found broken links:( I can get some other bios to work, but they appear to be flacky. I really think I should be using the one that came programmed on the board. Thanks, Dave -----Original Message----- From: Li-Ta Lo [mailto:ollie@lanl.gov] Sent: Friday, October 08, 2004 10:53 AM To: Dave Aubin Cc: LinuxBIOS Subject: Re: testbios loops? On Fri, 2004-10-08 at 08:35, Dave Aubin wrote: > Hi, > > I went back to trying to get the Nvida 6800gt card's bios, but still > even with dd -if=/dev/mem of=vgabios.rom skip=786432 bs=1 count=32768 > I get the same binary as dd -if=/dev/mem of=vgabios.rom skip=1536 > count=64. > I used dhex (free util) to verify they are the same. > What happens when I run them trough testbios is that once it is done > programming 0xc7fff it jump to 0x9 something or other and the video > bios isn't programmed correctly. What do you mean by 'programming oxc7ff it jump to 0x9' ? Ollie

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Re: testbios loops?
by Li-Ta Lo 08 Oct '04

08 Oct '04

On Fri, 2004-10-08 at 08:35, Dave Aubin wrote: > Hi, > > I went back to trying to get the Nvida 6800gt card's bios, but still > even with dd -if=/dev/mem of=vgabios.rom skip=786432 bs=1 count=32768 > I get the same binary as dd -if=/dev/mem of=vgabios.rom skip=1536 > count=64. > I used dhex (free util) to verify they are the same. > What happens when I run them trough testbios is that once it is done > programming > 0xc7fff it jump to 0x9 something or other and the video bios isn't > programmed correctly. What do you mean by 'programming oxc7ff it jump to 0x9' ? Ollie

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testbios loops?
by Dave Aubin 08 Oct '04

08 Oct '04

Hi, I went back to trying to get the Nvida 6800gt card's bios, but still even with dd -if=/dev/mem of=vgabios.rom skip=786432 bs=1 count=32768 I get the same binary as dd -if=/dev/mem of=vgabios.rom skip=1536 count=64. I used dhex (free util) to verify they are the same. What happens when I run them trough testbios is that once it is done programming 0xc7fff it jump to 0x9 something or other and the video bios isn't programmed correctly. My iomem looks like this: 00000000-0009fbff : System RAM 0009fc00-0009ffff : reserved 000a0000-000bffff : Video RAM area 000c0000-000c7fff : Video ROM 000f0000-000fffff : System ROM 00100000-1ffeffff : System RAM 00100000-002b00be : Kernel code 002b00bf-003d78bf : Kernel data 1fff0000-1fffefff : ACPI Tables 1ffff000-1fffffff : ACPI Non-volatile Storage c9f00000-c9ffffff : PCI Bus #01 ca000000-ca0fffff : PCI Bus #02 ca100000-ca1fffff : PCI Bus #03 Any ideas as to what is wrong? Thanks, Dave:)

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RE: Adding a PCI device that doesn't exist (yet)
by Dave Aubin 06 Oct '04

06 Oct '04

Very nice:) Thanks you:):):) -----Original Message----- From: linuxbios-admin(a)clustermatic.org [mailto:linuxbios-admin@clustermatic.org] On Behalf Of tyson(a)irobot.com Sent: Wednesday, October 06, 2004 2:35 PM To: Jay Miller Cc: Ronald G. Minnich; YhLu; linuxbios(a)clustermatic.org Subject: Re: Adding a PCI device that doesn't exist (yet) Jay Miller wrote: > Thanks Ty, that's exactly what we're looking for. The de-allocation > wouldn't be an issue as we would be re-programming on the reboot anyway. > > Did you use the proc_pci_attach_device() mechanism? > > Cheers, > > Jay Miller > 781-229-7812x117 > Actuality Systems, Inc. > jmiller(a)actuality-systems.com > > > -----Original Message----- > From: tyson(a)irobot.com [mailto:tyson@irobot.com] > Sent: Wednesday, October 06, 2004 1:52 PM > To: Jay Miller > Cc: Ronald G. Minnich; YhLu; linuxbios(a)clustermatic.org > Subject: Re: Adding a PCI device that doesn't exist (yet) > > Hopping in mid-thread here so I may have the context wrong: > > I have succeeded at programming the FPGA to create a PCI device after > the boot process. I was then able to have the device driver add the > device to the pci device table and get resources allocated for it and > get it paired up with the alread loaded device driver. > > I did not figure out how to de-allocate/de-register such that I could > cleanely re-program the FPGA without a re-boot. > > Is this relevant? > > Cheers! > Ty It is only a specific variation of this device that needed this code so it is hacked in by conditionally including the header file below into a .c file. Crufty code organization, but now you know. This was made to work by having user level initialization scripts program the FPGA before loading the device driver. The first thing that the device driver did in its init function was call the function below. This is working code as it sits. The things like "PCI_VENDOR_ID_IROBOT" are our own local hacks and defines. Things like "list_for_each_safe() come from the kernel headers. I think that <linux/pci.h> was all I needed for this part of the code but it might be dependent on others as well. I'd be happy to attempt to answer specific questions, but I think everything needed is here. I figured this out thought a lot of grepping and "use the source Luke!". Cheers! Ty =================================================================== /* * neolink2.h */ #define PCI_FNBUS 0 #define PCI_FNSLOT 16 #define PCI_FNFUNC 0 static int __init neolink2_init(void) { struct list_head *list, *list_tmp; struct pci_bus *bus; struct pci_dev dev, *dev1; if (pci_find_device(PCI_VENDOR_ID_IROBOT, PCI_DEVICE_ID_IROBOT_FN2A, NULL)) { printk("%6d:%s:%s() - Device is already initialized\n", __LINE__, __FILE__, __FUNCTION__); return 0; } list_for_each_safe(list, list_tmp, &pci_root_buses) { bus = pci_bus_b(list); if (bus->number == PCI_FNBUS) { memset(&dev, 0, sizeof(dev)); dev.bus = bus; dev.sysdata = bus->sysdata; dev.devfn = PCI_DEVFN(PCI_FNSLOT, PCI_FNFUNC); dev1 = pci_scan_slot(&dev); if (!dev1) { printk("%6d:%s:%s() - No device found\n", __LINE__, __FILE__, __FUNCTION__); return -ENODEV; } else { printk("%6d:%s:%s() - Found device %s\n", __LINE__, __FILE__, __FUNCTION__, dev1->name); pci_set_power_state(dev1, 0); pci_assign_resource(dev1, 0); pci_enable_device(dev1); // pci_announce_device_to_drivers(dev1); return 0; } break; } } printk("%6d:%s:%s() - Bus %d found\n", __LINE__, __FILE__, __FUNCTION__, PCI_FNBUS); return -ENODEV; } ===================================================================== -- Tyson D Sawyer iRobot Corporation Lead Systems Engineer Government & Industrial Robotics tsawyer(a)irobot.com Robots for the Real World 781-345-0200 ext 3329 http://www.irobot.com _______________________________________________ Linuxbios mailing list Linuxbios(a)clustermatic.org http://www.clustermatic.org/mailman/listinfo/linuxbios

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coreboot October 2004