Add support to the ipmi, isa attachment to attempt to read ipmi

config info. from device.hints.  Some machines have ipmi controllers
that do not have attachment info in either PCI, SMBIOS or ACPI.
This idea was hacked together by me and then done properly by
jhb.

Submitted by:	jhb
Reviewed by:	jhb (man page)
Approved by:	re (Ken Smith)
MFC after:	1 week

1 files changed, 37 insertions, 1 deletions

diff --git a/share/man/man4/ipmi.4 b/share/man/man4/ipmi.4
index a061df2..9ae078d 100644
--- a/share/man/man4/ipmi.4
+++ b/share/man/man4/ipmi.4
@@ -25,7 +25,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd September 30, 2006
+.Dd July 10, 2007
 .Dt IPMI 4
 .Os
 .Sh NAME
@@ -33,6 +33,42 @@
 .Nd "OpenIPMI compatible IPMI interface driver"
 .Sh SYNOPSIS
 .Cd "device ipmi"
+.Pp
+To manually specify I/O attachment in
+.Pa /boot/device.hints :
+.Cd hint.ipmi.0.at="isa"
+.Cd hint.ipmi.0.port="0xCA2"
+.Cd hint.ipmi.0.spacing="8"
+.Cd hint.ipmi.0.mode="KCS"
+.Pp
+To manually specify memory attachment in
+.Pa /boot/device.hints :
+.Cd hint.ipmi.0.at="isa"
+.Cd hint.ipmi.0.maddr="0xf0000000"
+.Cd hint.ipmi.0.spacing="8"
+.Cd hint.ipmi.0.mode="SMIC"
+.Pp
+Meaning of
+.Ar spacing :
+.Bl -tag -offset indent -compact -width 0x0
+.It 8
+8 bit alignment
+.It 16
+16 bit alignment
+.It 32
+32 bit alignment
+.El
+.Pp
+If the
+.Ar port
+and
+.Ar spacing
+are not specified the interface type default will be used.  Only specify 
+either the
+.Ar port
+for I/O access or
+.Ar maddr
+for memory access.
 .Sh DESCRIPTION
 The
 .Tn IPMI