6 messages in org.freebsd.freebsd-currentTI1225 CardBus controller| From | Sent On | Attachments |
|---|---|---|
| Blaz Zupan | Oct 5, 2000 2:36 am | |
| Garrett Wollman | Oct 5, 2000 8:07 am | |
| Julian Elischer | Oct 5, 2000 8:56 am | |
| Kenneth Wayne Culver | Oct 5, 2000 1:16 pm | |
| Warner Losh | Oct 5, 2000 1:24 pm | |
| Warner Losh | Oct 5, 2000 1:28 pm |
| Subject: | TI1225 CardBus controller | |
|---|---|---|
| From: | Garrett Wollman (woll...@khavrinen.lcs.mit.edu) | |
| Date: | Oct 5, 2000 8:07:07 am | |
| List: | org.freebsd.freebsd-current | |
<<On Thu, 5 Oct 2000 11:37:02 +0200 (CEST), Blaz Zupan <bl...@amis.net> said:
From reading the mailing list archives, I figured that the TI1225 driver does actually work in some laptops, because the BIOS does some magic initialization which the driver misses when running on a non-laptop box.
It's not necessarily just because of what the BIOS does. I am of the belief that the PCI card only works under the CardBus programming model. The reason should be obvious: the IRQ lines that the PC-Card interface needs aren't available on the PCI connector. When that chip is used in a laptop, it's connected directly to the PIIX so that it can get the full ISA functionality it needs in order to implement the Intel PCIC programming model.
-GAWollman
-- Garrett A. Wollman | O Siem / We are all family / O Siem / We're all the same woll...@lcs.mit.edu | O Siem / The fires of freedom Opinions not those of| Dance in the burning flame MIT, LCS, CRS, or NSA| - Susan Aglukark and Chad Irschick
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