freebsd-nq/share/man/man4/intpm.4
Andriy Gapon 3673f7136a amdsbwd, intpm: unify bits specific to AMD chipsets (FCHs, southbridges)
AMD chipsets have proprietary mechanisms for dicovering resources.
Those resources are not discoverable via plug-and-play mechanisms
like PCI configuration registers or ACPI.
For this reason a chipset-specific knowledge of proprietary registers
is required.

At present there are two FreeBSD drivers that require the proprietary
resource discovery.  One is amdsbwd which is a driver for the watchdog
timer in the AMD chipsets.  The other is intpm SMBus driver when it
attaches to the newer AMD chipsets where the resources of the SMBus HBA
are not described in the regular PCI way.

In both cases the resources are discovered by accessing AMD PMIO space.
Thus, many definitions are shared between the two drivers.
This change puts those defintions into a common header file.

As an added benefit, intpm driver now supports newest FCHs built into
AMD processors of Family 15h, models 70h-7Fh and Family 16h, models
30h-3Fh.

Reviewed by:	kib
MFC after:	1 week
Differential Revision: https://reviews.freebsd.org/D8004
2016-09-22 21:34:35 +00:00

87 lines
2.5 KiB
Groff

.\" Copyright (c) 1999 Takanori Watanabe
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.\"
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.\" $FreeBSD$
.\"
.Dd September 22, 2016
.Dt INTPM 4
.Os
.Sh NAME
.Nm intpm
.Nd Intel PIIX4 Power Management controller driver
.Sh SYNOPSIS
.Cd device pci
.Cd device smbus
.Cd device smb
.Cd device intpm
.Sh DESCRIPTION
The
.Nm
driver provides access to
.Tn Intel PIIX4
compatible Power Management controllers.
Currently, only
.Xr smbus 4
controller function is implemented.
.Sh HARDWARE
The
.Nm
driver supports the following chipsets:
.Pp
.Bl -bullet -compact
.It
Intel 82371AB/82443MX
.It
ATI IXP400
.It
AMD SB600/7x0/8x0/9x0 southbridges
.It
AMD Axx/Hudson/Bolton FCHs
.It
AMD FCH integrated into Family 15h Models 60h-6Fh, 70h-7Fh Processors
.It
AMD FCH integrated into Family 16h Models 00h-0Fh, 30h-3Fh Processors
.El
.Sh SEE ALSO
.Xr amdpm 4 ,
.Xr amdsmb 4 ,
.Xr ichsmb 4 ,
.Xr smb 4 ,
.Xr smbus 4
.Sh HISTORY
The
.Nm
driver first appeared in
.Fx 3.4 .
.Sh AUTHORS
This
manual page was written by
.An Takanori Watanabe Aq Mt takawata@shidahara1.planet.sci.kobe-u.ac.jp .
.Sh BUGS
This device requires IRQ 9 exclusively.
To use this, you should enable
ACPI function in BIOS configuration, or PnP mechanism assigns conflicted
IRQ for PnP ISA card.
And do not use IRQ 9 for Non-PnP ISA cards.