[Bug 204521] [new driver] [request] Port rtsx from OpenBSD to FreeBSD

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=204521

--- Comment #113 from Jacob Meadows <jrmeadows at hotmail.com> ---
Thank you for all your hard work on this.  I have a Realtek RTS525A in my Dell
Latitude E5570.  My FreeBSD version is 12.1-RELEASE-p5, and I am using the
GENERIC kernel.  I just downloaded and installed the driver from Git, when
loaded it will not show as attached to the device in pciconf, and no access to
an SD card is available.  When I load the driver, dmesg outputs this:

pci0: driver added
found-> vendor=0x8086, dev=0x1903, revid=0x07
        domain=0, bus=0, slot=4, func=0
        class=11-80-00, hdrtype=0x00, mfdev=0
        cmdreg=0x0002, statreg=0x0090, cachelnsz=0 (dwords)
        lattimer=0x00 (0 ns), mingnt=0x00 (0 ns), maxlat=0x00 (0 ns)
        intpin=a, irq=255
        powerspec 3  supports D0 D3  current D0
        MSI supports 1 message
pci0:0:4:0: reprobing on driver added
found-> vendor=0x8086, dev=0xa131, revid=0x31
        domain=0, bus=0, slot=20, func=2
        class=11-80-00, hdrtype=0x00, mfdev=0
        cmdreg=0x0002, statreg=0x0010, cachelnsz=0 (dwords)
        lattimer=0x00 (0 ns), mingnt=0x00 (0 ns), maxlat=0x00 (0 ns)
        intpin=c, irq=255
        powerspec 3  supports D0 D3  current D0
        MSI supports 1 message
pci0:0:20:2: reprobing on driver added
found-> vendor=0x8086, dev=0xa13a, revid=0x31
        domain=0, bus=0, slot=22, func=0
        class=07-80-00, hdrtype=0x00, mfdev=1
        cmdreg=0x0002, statreg=0x0010, cachelnsz=0 (dwords)
        lattimer=0x00 (0 ns), mingnt=0x00 (0 ns), maxlat=0x00 (0 ns)
        intpin=a, irq=255
        powerspec 3  supports D0 D3  current D0
        MSI supports 1 message, 64 bit
pci0:0:22:0: reprobing on driver added
found-> vendor=0x8086, dev=0xa121, revid=0x31
        domain=0, bus=0, slot=31, func=2
        class=05-80-00, hdrtype=0x00, mfdev=1
        cmdreg=0x0002, statreg=0x0000, cachelnsz=0 (dwords)
        lattimer=0x00 (0 ns), mingnt=0x00 (0 ns), maxlat=0x00 (0 ns)
pci0:0:31:2: reprobing on driver added
pci1: driver added
pci2: driver added
pci3: driver added
found-> vendor=0x10ec, dev=0x525a, revid=0x01
        domain=0, bus=3, slot=0, func=0
        class=ff-00-00, hdrtype=0x00, mfdev=0
        cmdreg=0x0006, statreg=0x0010, cachelnsz=0 (dwords)
        lattimer=0x00 (0 ns), mingnt=0x00 (0 ns), maxlat=0x00 (0 ns)
        intpin=a, irq=255
        powerspec 3  supports D0 D1 D2 D3  current D0
        MSI supports 1 message, 64 bit
pci0:3:0:0: reprobing on driver added
rtsx0: <Realtek RTS525A PCI MMC/SD Card Reader> mem 0xef000000-0xef000fff at
device 0.0 on pci3
rtsx0: Attach - Vendor ID: 0x10ec - Device ID: 0x525a
rtsx0: attempting to allocate 1 MSI vectors (1 supported)
msi: routing MSI IRQ 270 to local APIC 4 vector 52
rtsx0: using IRQ 270 for MSI
rtsx0: Can't allocate memory resource for 16
device_attach: rtsx0 attach returned 6

pciconf -lv shows this for the device:
none4 at pci0:3:0:0:       class=0xff0000 card=0x06df1028 chip=0x525a10ec rev=0x01
hdr=0x00
    vendor     = 'Realtek Semiconductor Co., Ltd.'
    device     = 'RTS525A PCI Express Card Reader'

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