AMD 8111 GPIO
YhLu at tyan.com
Mon Jul 26 13:06:01 CEST 2004
You can use GPIO from AMD8111 and SuperIO Winbond 86327hf. But you need to
check which pin can be linked out.
From: Jay Miller [mailto:jmiller at actuality-systems.com]
Sent: Friday, July 23, 2004 1:45 PM
To: linuxbios at clustermatic.org
Subject: AMD 8111 GPIO
We've got Linux up and running on our Tyan S2885 motherboards, using
etherboot and filo with USB support. Thanks for all your help, and
I was hoping that with all the expertise here with AMD 8111 chipset,
that someone would be able to answer my question. Although it's not
strictly LinuxBIOS, it is Linux. ;-)
So I'm trying to write a Linux driver for the GPIO pins on the AMD 8111.
I saw a comment in amd8111_smbus.c that PMIOEN is set. I believe this
is part of what I need to be able to drive the GPIOs.
But how/where were all those hex values determined? The spec uses
mnemonics to abstract the addresses, and I don't see how they correlate.
Actuality Systems, Inc.
jmiller at acutality-systems.com
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