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    SubjectRe: BCM4312 Fails when xdm is started
    Date
    On Saturday 22 November 2008 07:39:24 Yuval Hager wrote:
    > On Friday 21 November 2008, Larry Finger wrote:
    > > Yuval,
    > >
    > > Michael Buesch wrote:
    > > > Can you dump PCI config space and SSB registers (TMSLOW, maybe others,
    > > > too). It looks like a random bus write disabled the device.
    > >
    > > Please incorporate the following patch and run your system. In addition,
    > > run the following command when the wireless is working and after it fails:
    > >
    > > sudo lspci -d 14e4:4312 -x
    > >
    >
    > When the wireless is working:
    > $ lspci -d 14e4:4312 -x
    > 02:00.0 Network controller: Broadcom Corporation BCM4312 802.11a/b/g (rev 02)
    > 00: e4 14 12 43 06 01 10 00 02 00 80 02 08 00 00 00
    > 10: 04 c0 ff fd 00 00 00 00 00 00 00 00 00 00 00 00
    > 20: 00 00 00 00 00 00 00 00 00 00 00 00 3c 10 71 13
    > 30: 00 00 00 00 40 00 00 00 00 00 00 00 0a 01 00 00
    >
    > After it fails:
    > $ lspci -d 14e4:4312 -x
    > 02:00.0 Network controller: Broadcom Corporation BCM4312 802.11a/b/g (rev 02)
    > 00: e4 14 12 43 00 00 10 00 02 00 80 02 00 00 00 00
    ^^ ^^
    Somebody disabled MMIO and busmastering.
    And somebody cleared the CACHE_LINE_SIZE register.

    > 10: 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    > 20: 00 00 00 00 00 00 00 00 00 00 00 00 3c 10 71 13
    > 30: 00 00 00 00 40 00 00 00 00 00 00 00 00 01 00 00

    --
    Greetings Michael.


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