ath0 no longer attaches, cardbus problems?

[Daniel Eischen]

On Thu, 8 Sep 2011, John Baldwin wrote:

> On Thursday, September 08, 2011 1:19:23 pm Daniel Eischen wrote:
>>
>> I suspect you don't really need the pciconf -lb from before r220195
>> because r220195 works - ath attaches and is at the correct base
>> address (0x88000000).  So the commit that broke ath/cardbus must
>> be after r220195.
>>
>> The verbose dmesg and pciconf -lb are here:
>>
>>    http://people.freebsd.org/~deischen/ath/dmesg.r220195.txt
>>    http://people.freebsd.org/~deischen/ath/dmesg.r220195.txt
>>
>> I've noticed that in the non-working kernels, pcib2/cbb0
>> are at address 0xf8f00000, and cbb1 is at 0xf8f01000.
>> When the PCI configuration space is printed (in the
>> verbose boot), offset 0x10 shows 0xf8f00000 and
>> 0xf8f01000.  In the working kernel, they are at 0x8000000
>> and 0x80001000.  It seems like kernels post Mar 31 constrain
>> the cardbus address range to be within the PCI bridge
>> range.
>
> Yes.  You can test if that is all that causes the problem by turning off
> 'NEW_PCIB' in your kernel config.

I tried a recent kernel from HEAD with nooption NEW_PCIB.
The addresses are back to pre-Mar 31, but ath still doesn't
attach, verbose dmesg here:

   http://people.freebsd.org/~deischen/ath/dmesg.fails.no_new_pcib.txt

The relevent ath messages are below.

-- 
DE

pcib2: requested memory range 0x88000000-0xffffffff: good
unknown: Lazy allocation of 0x10000 bytes rid 0x10 type 3 at 0x88000000
cbb0: Opening memory:
cbb0: Normal: 0x88000000-0x8800ffff
cbb0: Opening memory:
cbb0: Opening memory:
cbb0: Normal: 0x88000000-0x8800ffff
cbb0: Opening memory:
found-> vendor=0x168c, dev=0x0013, revid=0x01
         domain=0, bus=3, slot=0, func=0
         class=02-00-00, hdrtype=0x00, mfdev=0
         cmdreg=0x0002, statreg=0x0290, cachelnsz=0 (dwords)
         lattimer=0x00 (0 ns), mingnt=0x0a (2500 ns), maxlat=0x1c (7000 ns)
         intpin=a, irq=11
         powerspec 2  supports D0 D3  current D0
ath0: <Atheros 5212> mem 0x88000000-0x8800ffff irq 11 at device 0.0 on 
cardbus0
cbb0: Opening memory:
cbb0: Normal: 0x88000000-0x8800ffff
ar5212SetPowerModeAwake: Failed to wakeup in 40ms
ar5212SetPowerModeAwake: Failed to wakeup in 40ms
ath0: unable to attach hardware; HAL status 3
cbb0: Opening memory:
device_attach: ath0 attach returned 6