[Bug 211705] Several "sdhci_pci0-slot0: Controller Timeout" messages during boot - no sdcard is connected [MSI Board "Cubi-N"]

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=211705

            Bug ID: 211705
           Summary: Several "sdhci_pci0-slot0: Controller Timeout"
                    messages during boot - no sdcard is connected [MSI
                    Board "Cubi-N"]
           Product: Base System
           Version: 11.0-STABLE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: miguelmclara at gmail.com
                CC: freebsd-amd64 at FreeBSD.org
                CC: freebsd-amd64 at FreeBSD.org

I was getting this on FreeBSD 10 for the record but since this workstation
needed a reinstall I decided to test 11-BETA4

This message seems related to an sdcard controller, but I have no sdcard
connected although this is a system with a mSata controller where the SSD for
the system is connected.

More info on the system here:
https://us.msi.com/product/barebone/Cubi-Mini-PC-Kit.html#hero-specification


I get the same output from the usb memstick image.

I'e looked into BIOS settings to see if I could somehow disable the sdcard
controller but I can't.

pciconf -lv show this:

sdhci_pci0 at pci0:0:16:0: class=0x080501 card=0xb1201462 chip=0x22948086 rev=0x21
hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'Braswell Storage Cluster Control MMC Port'
    class      = base peripheral
    subclass   = SD host controller
ahci0 at pci0:0:19:0:      class=0x010601 card=0xb1201462 chip=0x22a38086 rev=0x21
hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'Braswell SATA Controller'
    class      = mass storage
    subclass   = SATA



I don't suppose I can just not load sdhci unless I compile the kernel without
it, cause I don't really use it in this boxes.

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