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problem with PCI Express expansion on board with E3825 with coreboot

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  • A
    asa1986
    last edited by asa1986 Jan 22, 2020, 10:25 AM Jan 22, 2020, 10:24 AM

    I am trying to connect pci express expansion (PCI bridge) to pci express on my board with coreboot firmwar with payload seabios.
    It didnot work .
    Your opinion, I should change code of coreboot or FSP?

    I want to use a PCIe bridge to convert a PCIE-x1 to 2 PCIE-X1 connectors
    but booting FreeBSD won't show any active bridge.

    what

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    • S
      stephenw10 Netgate Administrator
      last edited by Jan 23, 2020, 12:20 AM

      Does it see any new PCI device using pciconf -lv?

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      • A
        asa1986
        last edited by Jan 23, 2020, 5:14 AM

        I used pciconf -lv but it did not show any device.

        I tested it on my system with Freebsd 12 and pciconf -lv and it detect chip Pericom but on board with E3825 it did not show anything .

        I donot know that Coreboot support baytrial for pci express bridge or not.

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        • S
          stephenw10 Netgate Administrator
          last edited by Jan 23, 2020, 1:31 PM

          Hmm, if it's not even seen on the pcie bus a Coreboot update is about all you can do there.

          You could try a 2.5 snapshot, that's built on FreeBSD 12 but I suspect your other system would still see it in FreeBSD 11.

          Steve

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          • A
            asa1986
            last edited by Jan 25, 2020, 5:23 AM

            Thank you.2.5 snapshot for coreboot ? or FSP ?

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            • S
              stephenw10 Netgate Administrator
              last edited by Jan 25, 2020, 11:54 AM

              A pfSense 2.5 Snapshot: https://www.pfsense.org/snapshots/

              Coreboot updates would from the manufacturer. Though if may be possible to build your own since Coreboot is open source.
              Actually correcting a problem like this though is.... non-trivial!

              Steve

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