RFC: PCI SD host controller driver & mmc/mmcsd modules improvements

[Lars Engels]

Quoting Alexander Motin <mav at FreeBSD.org>:

> Lars Engels wrote:
>> 1. How can I tune the PCI configuration? With pciconf -w or so?
>
> Yes. `pciconf -r -b device addr` to read and `pciconf -w -b device addr
> value` to write.

Okay, so do you think I need to take the device of the first sdhci  
device or firewire's device like in the thread you mentioned?
I should then set the value to 0x20 I guess? Which address do I need to use?
FYI here is the pciconf -lv output with firewire and sdhci:

fwohci0 at pci0:2:6:2:     class=0x0c0010 card=0x30c3103c chip=0x08321180  
rev=0x03 hdr=0x00
     vendor     = 'Ricoh Company, Ltd.'
     device     = 'unknown IEEE 1394 (4 pin firewire) chip)'
     class      = serial bus
     subclass   = FireWire
sdhci0 at pci0:2:6:3:      class=0x080500 card=0x30c3103c chip=0x08221180  
rev=0x20 hdr=0x00
     vendor     = 'Ricoh Company, Ltd.'
     device     = 'R5C832, R5C843 SDA Standard Compliant SD Host Controller'
     class      = base peripheral
none2 at pci0:2:6:4:       class=0x088000 card=0x30c3103c chip=0x08431180  
rev=0x10 hdr=0x00
     vendor     = 'Ricoh Company, Ltd.'
     device     = 'unknown Ricoh MMC Host Controller'
     class      = base peripheral


>> 2. Unfortunately the sysctl did not change a thing with regard to the
>> Card reader.
>
> Have you added it to the loader.conf and rebooted?

Yes, but without result.

>> 3. I added the chip ID and the second device is now recognized as a
>> sdhci device but still does not see any card inserted:
>>
>> Nov  6 16:32:20 NB0117232 kernel: sdhci1: Hardware doesn't specify base
>> clock frequency.
>> Nov  6 16:32:20 NB0117232 kernel: sdhci1: Hardware doesn't specify
>> timeout clock frequency.
>> Nov  6 16:32:20 NB0117232 kernel: sdhci1: Hardware doesn't report any
>> support voltages.
>
> Looks like it is not enough compatible, or even not compatible.

Too bad...
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