If I list the PCI devices (including my quad port nic), I see 2 busses with a
PCI-PCI bridge:
0:1:0: AMD Geode LX
0:1:2: AMD Geode LX Crypto
0:6:0: VIA VT6105M RhineIII
0:7:0: VIA VT6105M RhineIII
0:8:0: VIA VT6105M RhineIII
0:9:0: VIA VT6105M RhineIII
0:14:0: Hint HB6 PCI-PCI
0:20:0: AMD CS5536 ISA
0:20:2: AMD CS5536 IDE
0:21:0: AMD CS5536 USB
0:21:1: AMD CS5536 USB
1:8:0: VIA VT6105 RhineIII
1:9:0: VIA VT6105 RhineIII
1:10:0: VIA VT6105 RhineIII
1:11:0: VIA VT6105 RhineIII
The PCI-PCI bridge has 2 busses, which could operate at independent
frequencies. The quad port NIC is the only device on bus
1, which will be replaced by a 66Mhz capable one. So the question is actually:
is 66Mhz enabled on the PCI-PCI bridge on the
soekris board? This is the result of pcidump (OpenBSD) of the bridge:
0:14:0: Hint HB6 PCI-PCI
0x0000: Vendor ID: 3388 Product ID: 0021
0x0004: Command: 0107 Status ID: 0290
When you translate the hex code of the Status ID into bits, bit 5 (=66Mhz
indicator) is disabled if you read from left-right,
but enabled if you read from right-left. Computer tech has been a while for me,
so could somebody help?
Thanks,
Bert
Dustin Lundquist wrote:
> Bert Koelewijn wrote:
>> Does the net5501 PCI bus support 32bit at 66mhz?
> The PCI bus is limited to the slowest device on the bus, and the VT6105M
> don't appear to support 66Mhz so the bus would be limited to 33Mhz. That
> being said a faster PCI device should down clock to 33MHz.
>
>
> Dustin Lundquist
> _______________________________________________
> Soekris-tech mailing list
> [email protected]
> http://lists.soekris.com/mailman/listinfo/soekris-tech
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