[LinuxBIOS] LinuxBIOS support for nvidia CK804 northbridge?

[Carl-Daniel Hailfinger]

Hi,

in the process of trying to find any motherboard with more than
3 PCI-Express slots and LinuxBIOS support, I failed miserably.
It seems such boards only exist with nVidia CK804 northbridges
for which I couldn't find any code in the LinuxBIOS source code.
Section 2.9 of the LinuxBIOS FAQ suggests to send lspci -vvv
to this list for closer inspection.

One of those systems with 4 PCIe slots is the Asus K8N-SLI Deluxe.
The lspci below contains four PCIe gigabit ethernet controllers
at 0000:01:00.0, 0000:02:00.0, 0000:03:00.0 and 0000:04:00.0.
It's the only motherboard with this northbridge I have access to
at the moment.

switch:~ # lspci -vvv
0000:00:00.0 Memory controller: nVidia Corporation CK804 Memory Controller (rev a3)
        Subsystem: ASUSTeK Computer Inc.: Unknown device 815a
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0
        Capabilities: [44] #08 [01e0]
        Capabilities: [e0] #08 [a801]

0000:00:01.0 ISA bridge: nVidia Corporation: Unknown device 0050 (rev a3)
        Subsystem: ASUSTeK Computer Inc.: Unknown device 815a
        Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap- 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0

0000:00:01.1 SMBus: nVidia Corporation CK804 SMBus (rev a2)
        Subsystem: ASUSTeK Computer Inc.: Unknown device 815a
        Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Interrupt: pin A routed to IRQ 11
        Region 0: I/O ports at e400 [size=32]
        Region 4: I/O ports at 4c00 [size=64]
        Region 5: I/O ports at 4c40 [size=64]
        Capabilities: [44] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot+,D3cold+)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-

0000:00:02.0 USB Controller: nVidia Corporation CK804 USB Controller (rev a2) (prog-if 10 [OHCI])
        Subsystem: ASUSTeK Computer Inc.: Unknown device 815a
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0 (750ns min, 250ns max)
        Interrupt: pin A routed to IRQ 201
        Region 0: Memory at d3004000 (32-bit, non-prefetchable) [size=4K]
        Capabilities: [44] Power Management version 2
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-

0000:00:02.1 USB Controller: nVidia Corporation CK804 USB Controller (rev a3) (prog-if 20 [EHCI])
        Subsystem: ASUSTeK Computer Inc.: Unknown device 815a
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0 (750ns min, 250ns max)
        Interrupt: pin B routed to IRQ 177
        Region 0: Memory at d3005000 (32-bit, non-prefetchable) [size=256]
        Capabilities: [44] #0a [2098]
        Capabilities: [80] Power Management version 2
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-

0000:00:04.0 Multimedia audio controller: nVidia Corporation CK804 AC'97 Audio Controller (rev a2)
        Subsystem: ASUSTeK Computer Inc.: Unknown device 812a
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0 (500ns min, 1250ns max)
        Interrupt: pin A routed to IRQ 10
        Region 0: I/O ports at dc00 [size=256]
        Region 1: I/O ports at e000 [size=256]
        Region 2: Memory at d3003000 (32-bit, non-prefetchable) [size=4K]
        Capabilities: [44] Power Management version 2
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-

0000:00:06.0 IDE interface: nVidia Corporation CK804 IDE (rev a2) (prog-if 8a [Master SecP PriP])
        Subsystem: ASUSTeK Computer Inc.: Unknown device 815a
        Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0 (750ns min, 250ns max)
        Region 4: I/O ports at f000 [size=16]
        Capabilities: [44] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-

0000:00:07.0 IDE interface: nVidia Corporation CK804 Serial ATA Controller (rev a3) (prog-if 85 [Master SecO PriO])
        Subsystem: ASUSTeK Computer Inc.: Unknown device 815a
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0 (750ns min, 250ns max)
        Interrupt: pin A routed to IRQ 177
        Region 0: I/O ports at 09f0 [size=8]
        Region 1: I/O ports at 0bf0 [size=4]
        Region 2: I/O ports at 0970 [size=8]
        Region 3: I/O ports at 0b70 [size=4]
        Region 4: I/O ports at d800 [size=16]
        Region 5: Memory at d3002000 (32-bit, non-prefetchable) [size=4K]
        Capabilities: [44] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-

0000:00:08.0 IDE interface: nVidia Corporation CK804 Serial ATA Controller (rev a3) (prog-if 85 [Master SecO PriO])
        Subsystem: ASUSTeK Computer Inc.: Unknown device 815a
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0 (750ns min, 250ns max)
        Interrupt: pin A routed to IRQ 185
        Region 0: I/O ports at 09e0 [size=8]
        Region 1: I/O ports at 0be0 [size=4]
        Region 2: I/O ports at 0960 [size=8]
        Region 3: I/O ports at 0b60 [size=4]
        Region 4: I/O ports at c400 [size=16]
        Region 5: Memory at d3001000 (32-bit, non-prefetchable) [size=4K]
        Capabilities: [44] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-

0000:00:09.0 PCI bridge: nVidia Corporation CK804 PCI Bridge (rev a2) (prog-if 01 [Subtractive decode])
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
        Status: Cap- 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0
        Bus: primary=00, secondary=05, subordinate=05, sec-latency=128
        I/O behind bridge: 0000a000-0000afff
        Memory behind bridge: ce000000-d0ffffff
        Prefetchable memory behind bridge: c0000000-c7ffffff
        BridgeCtl: Parity- SERR+ NoISA- VGA+ MAbort- >Reset- FastB2B-

0000:00:0a.0 Bridge: nVidia Corporation CK804 Ethernet Controller (rev a3)
        Subsystem: ASUSTeK Computer Inc.: Unknown device 8141
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0 (250ns min, 5000ns max)
        Interrupt: pin A routed to IRQ 193
        Region 0: Memory at d3000000 (32-bit, non-prefetchable) [size=4K]
        Region 1: I/O ports at b000 [size=8]
        Capabilities: [44] Power Management version 2
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-

0000:00:0b.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3) (prog-if 00 [Normal decode])
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0, cache line size 08
        Bus: primary=00, secondary=04, subordinate=04, sec-latency=0
        I/O behind bridge: 00009000-00009fff
        Memory behind bridge: cc000000-cdffffff
        Prefetchable memory behind bridge: 00000000fff00000-0000000000000000
        BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
        Capabilities: [40] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [48] Message Signalled Interrupts: 64bit+ Queue=0/1 Enable-
                Address: 0000000000000000  Data: 0000
        Capabilities: [58] #08 [a800]
        Capabilities: [80] #10 [0141]

0000:00:0c.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3) (prog-if 00 [Normal decode])
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0, cache line size 08
        Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
        I/O behind bridge: 00008000-00008fff
        Memory behind bridge: ca000000-cbffffff
        Prefetchable memory behind bridge: 00000000fff00000-0000000000000000
        BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
        Capabilities: [40] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [48] Message Signalled Interrupts: 64bit+ Queue=0/1 Enable-
                Address: 0000000000000000  Data: 0000
        Capabilities: [58] #08 [a800]
        Capabilities: [80] #10 [0141]

0000:00:0d.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3) (prog-if 00 [Normal decode])
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0, cache line size 08
        Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
        I/O behind bridge: 00007000-00007fff
        Memory behind bridge: c8000000-c9ffffff
        Prefetchable memory behind bridge: 00000000fff00000-0000000000000000
        BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
        Capabilities: [40] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [48] Message Signalled Interrupts: 64bit+ Queue=0/1 Enable-
                Address: 0000000000000000  Data: 0000
        Capabilities: [58] #08 [a800]
        Capabilities: [80] #10 [0141]

0000:00:0e.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3) (prog-if 00 [Normal decode])
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0, cache line size 08
        Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
        I/O behind bridge: 00006000-00006fff
        Memory behind bridge: d1000000-d2ffffff
        Prefetchable memory behind bridge: 00000000fff00000-0000000000000000
        BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
        Capabilities: [40] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [48] Message Signalled Interrupts: 64bit+ Queue=0/1 Enable-
                Address: 0000000000000000  Data: 0000
        Capabilities: [58] #08 [a800]
        Capabilities: [80] #10 [0141]

0000:00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
        Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Capabilities: [80] #08 [2101]

0000:00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map
        Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-

0000:00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller
        Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-

0000:00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
        Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-

0000:01:00.0 Ethernet controller: SysKonnect SK-9Exx 10/100/1000Base-T Adapter (rev 10)
        Subsystem: SysKonnect SK-9E21D 10/100/1000Base-T Adapter
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR+ <PERR-
        Latency: 0, cache line size 08
        Interrupt: pin A routed to IRQ 233
        Region 0: Memory at d2000000 (64-bit, non-prefetchable) [size=16K]
        Region 2: I/O ports at 6000 [size=256]
        Capabilities: [48] Power Management version 2
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
                Status: D0 PME-Enable- DSel=0 DScale=1 PME-
        Capabilities: [50] Vital Product Data
        Capabilities: [5c] Message Signalled Interrupts: 64bit+ Queue=0/1 Enable-
                Address: 0000000000000000  Data: 0000
        Capabilities: [e0] #10 [0011]

0000:02:00.0 Ethernet controller: SysKonnect SK-9Exx 10/100/1000Base-T Adapter (rev 10)
        Subsystem: SysKonnect SK-9E21D 10/100/1000Base-T Adapter
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR+ <PERR-
        Latency: 0, cache line size 08
        Interrupt: pin A routed to IRQ 225
        Region 0: Memory at c9000000 (64-bit, non-prefetchable) [size=16K]
        Region 2: I/O ports at 7000 [size=256]
        Capabilities: [48] Power Management version 2
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
                Status: D0 PME-Enable- DSel=0 DScale=1 PME-
        Capabilities: [50] Vital Product Data
        Capabilities: [5c] Message Signalled Interrupts: 64bit+ Queue=0/1 Enable-
                Address: 0000000000000000  Data: 0000
        Capabilities: [e0] #10 [0011]

0000:03:00.0 Ethernet controller: SysKonnect SK-9Exx 10/100/1000Base-T Adapter (rev 10)
        Subsystem: SysKonnect SK-9E21D 10/100/1000Base-T Adapter
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR+ <PERR-
        Latency: 0, cache line size 08
        Interrupt: pin A routed to IRQ 217
        Region 0: Memory at cb000000 (64-bit, non-prefetchable) [size=16K]
        Region 2: I/O ports at 8000 [size=256]
        Capabilities: [48] Power Management version 2
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
                Status: D0 PME-Enable- DSel=0 DScale=1 PME-
        Capabilities: [50] Vital Product Data
        Capabilities: [5c] Message Signalled Interrupts: 64bit+ Queue=0/1 Enable-
                Address: 0000000000000000  Data: 0000
        Capabilities: [e0] #10 [0011]

0000:04:00.0 Ethernet controller: SysKonnect SK-9Exx 10/100/1000Base-T Adapter (rev 10)
        Subsystem: SysKonnect SK-9E21D 10/100/1000Base-T Adapter
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR+ <PERR-
        Latency: 0, cache line size 08
        Interrupt: pin A routed to IRQ 209
        Region 0: Memory at cd000000 (64-bit, non-prefetchable) [size=16K]
        Region 2: I/O ports at 9000 [size=256]
        Capabilities: [48] Power Management version 2
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
                Status: D0 PME-Enable- DSel=0 DScale=1 PME-
        Capabilities: [50] Vital Product Data
        Capabilities: [5c] Message Signalled Interrupts: 64bit+ Queue=0/1 Enable-
                Address: 0000000000000000  Data: 0000
        Capabilities: [e0] #10 [0011]

0000:05:06.0 VGA compatible controller: nVidia Corporation NV18 [GeForce4 MX 4000 AGP 8x] (rev c1) (prog-if 00 [VGA])
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 32 (1250ns min, 250ns max)
        Interrupt: pin A routed to IRQ 12
        Region 0: Memory at ce000000 (32-bit, non-prefetchable) [size=16M]
        Region 1: Memory at c0000000 (32-bit, prefetchable) [size=128M]
        Capabilities: [60] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-

0000:05:0b.0 FireWire (IEEE 1394): Texas Instruments TSB43AB22/A IEEE-1394a-2000 Controller (PHY/Link) (prog-if 10 [OHCI])
        Subsystem: ASUSTeK Computer Inc.: Unknown device 808b
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 32 (500ns min, 1000ns max), cache line size 08
        Interrupt: pin A routed to IRQ 12
        Region 0: Memory at d0008000 (32-bit, non-prefetchable) [size=2K]
        Region 1: Memory at d0000000 (32-bit, non-prefetchable) [size=16K]
        Capabilities: [44] Power Management version 2
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-

0000:05:0c.0 Ethernet controller: Marvell Technology Group Ltd. Gigabit Ethernet Controller (rev 13)
        Subsystem: ASUSTeK Computer Inc. Marvell 88E8001 Gigabit Ethernet Controller (Asus)
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 32 (5750ns min, 7750ns max), cache line size 08
        Interrupt: pin A routed to IRQ 209
        Region 0: Memory at d0004000 (32-bit, non-prefetchable) [size=16K]
        Region 1: I/O ports at a000 [size=256]
        Capabilities: [48] Power Management version 2
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
                Status: D0 PME-Enable- DSel=0 DScale=1 PME-
        Capabilities: [50] Vital Product Data

The only references to something similar were a post archived at
http://www.mail-archive.com/[e-mail]/msg00792.html
but the thread seemed to end inconclusive and another post at
http://www.mail-archive.com/[e-mail]/msg01023.html

Is there any support for that nvidia northbridge underway?

Regards,
Carl-Daniel

[yhlu]

CK804 is a southbridge and the support is in src/southbridge/nvidia/ck804

Please refer to MB Tyan s2895 to create your MB support code.

YH

[Carl-Daniel Hailfinger]

On 2006-01-16, yhlu wrote:
> CK804 is a southbridge and the support is in src/southbridge/nvidia/ck804

Ah thanks.
> Please refer to MB Tyan s2895 to create your MB support code.

So the Tyan s2865 (most similar to the board I have) has the same northbridge
and southbridge as the s2895? That's good.
I hope it will be easier for me to get the s2865 running than a mainboard
from a different vendor.

On 2005-08-17, yhlu wrote:
> You need to talk to Tyan to see if they want to release the source
> code for s2865 support.

Did there anything come out of these efforts?

Regards,
Carl-Daniel

[yhlu]

what's your MB brand and model?

YH

[Carl-Daniel Hailfinger]

yhlu wrote:
> what's your MB brand and model?

It's an Asus A8N-SLI Deluxe.
Data (mostly guessed or searched on the web):
Northbridge: NVIDIA nForce4 SLI
Southbridge: NVIDIA CK804 (says lspci) / NVIDIA nForce4 SLI (says the doc)
Socket 939
Award 4Mb Flash EEPROM
Supports Athlon 64; Athlon 64 FX; Opteron 1xx for Socket 939

I hope you can find some more usable information at
http://www.asus.com/products4.aspx?l1=3&l2=15&l3=0&model=375&...
http://www.asus.com/products4.aspx?modelmenu=2&model=375&l1=3&l2...

The things making this motherboard attractive for me:
- 8 SATA ports
- 4 PCIe slots
- 4 MB Flash EEPROM (should be big enough for LinuxBIOS)
- 2 GBit LAN ports

The PCIe slots are most important because I plan to build some
routers with half a dozen gigabit interfaces each and using PCI
would severely limit performance.

Regards,
Carl-Daniel

[yhlu]

I don't know what is the Superio in the MB...

the only problem maybe the memory man only support one dimm, (the
current K8 code in the tree)

Are you going to look at some opteron and ck804 based MB or Opteron
and Serverworks MB?

YH

[Jeremy Jackson]

Carl-Daniel Hailfinger wrote:
> On 2005-08-17, yhlu wrote:
> > You need to talk to Tyan to see if they want to release the source
> > code for s2865 support.
>
> Did there anything come out of these efforts?

There was some activity, but I didn't get an answer.  Perhaps I should 
send another email.

[Carl-Daniel Hailfinger]

yhlu schrieb:
> I don't know what is the Superio in the MB...
>
> the only problem maybe the memory man only support one dimm, (the
> current K8 code in the tree)

That wouldn't be such a big problem for me.
> Are you going to look at some opteron and ck804 based MB or Opteron
> and Serverworks MB?

Yes, opteron and ck804 based MBs are an option as long as they have
enough PCI-Express slots and don't cost a fortune. AFAIK Serverworks
based motherboards don't support PCIe.

However, right now I'm trying to find a reasonably cheap (as student
at an university I don't have too much money to spend) platform
for experiments which won't force me to re-do everything once I need
better performance or decide to establish a business in that area
after graduating. So spending ~300$ for a decent Athlon64/PCIe MB
combination is already at the upper end. Most Opteron MBs are above
300$ and then I still have to buy the processors.

Side note:
I think LinuxBIOS is very cool and will enable some really exciting
possibilities to use computers, faster booting being one of the
smaller aspects. Unfortunately the monetary entry barrier is quite
high right now for hobbyists. If we had 50$ MBs with support for
LinuxBIOS, there might be a lot more hackers able to contribute.
Of course contributing to LinuxBIOS needs a lot more skill than
for other projects, but some hackers will have that skill.

<dream>
The next time slashdot or some other site mentions LinuxBIOS,
people will be able to download image files for all modern MBs,
flash them and be proud like iPod owners.
Tuning freaks will notice that BIOS initialization can be done in
3 seconds instead of 30 and will want to use LinuxBIOS, too.
Instant-on will get a whole new meaning where people complain that
their cellphones boot slower than their desktops.
Suspend-to-{Disk,RAM} will work out of the box because the BIOS
does the right thing (tm).
Security-aware admins can be sure there are no more generic BIOS
passwords/backdoors.
Multiple vendors will start to ship boards with LinuxBIOS at the
same price as boards with proprietary BIOS.
High-end audio professionals will admire the fact that there are
no SMM traps killing their low latency requirements.
High-end storage servers will be able boot directly from Linux
RAID devices even if some of the disks have failed.
Some board manufacturers will switch completely to LinuxBIOS,
saving a load of money on proprietary BIOS.
</dream>

Regards,
Carl-Daniel

[Carl-Daniel Hailfinger]

[sorry for the resend]

yhlu wrote:
> I don't know what is the Superio in the MB...

According to sensors-detect it's an "ITE 8712F Super IO Sensors".
This http://tinyurl.com/beaw8 photo seems to suggest an ITE 8712F-A.
Specs are at
http://www.ite.com.tw/product_info/PC/Brief-IT8712_2.asp

The BIOS chip is SST49LF004A/B (says flashrom). Looks like
a PLCC chip. I wonder whether I can replace this 4M chip
with an 8M chip to have more space for LinuxBIOS.

Regards,
Carl-Daniel

[Carl-Daniel Hailfinger]

Jeremy Jackson wrote on 2006-01-17:
> Carl-Daniel Hailfinger wrote:
> > On 2005-08-17, yhlu wrote:
> > > You need to talk to Tyan to see if they want to release the source
> > > code for s2865 support.
> >
> > Did there anything come out of these efforts?
>
> There was some activity, but I didn't get an answer.  Perhaps I should
> send another email.

Did Tyan respond to that other mail? I have the impression that half
of the Tyan mainboards available today are unsupported in LinuxBIOS.

Regards,
Carl-Daniel