Re: [9fans] i82365 change

[nigel@9fs.org]

Reading the oracle (http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/pccard/)
that bit does nothing for any pcmcia bridge or cardbus bridge in compatbility mode
except 82365SL-DF.

However, setting it will break any 5v cards. You need to

1) detect the DF version
2) use a different register to detect if the card present is 3.3v or 5v
3) set the appropriate bit in the case of 3.3v

The DF version returns 0x84 in register 0.
Register 0x16 is the \x16Card Detect and General Control register.
Bit 6 tells the voltage of slot 1, and bit 7 for slot 2.
0 means 3.3v, 1 means 5v.

So, it register 0 is 0x84, and register 0x16 has the appropriate bit clear,
then set the 3.3v bit.

I think.