kern/177072: AMT serial port for X79 chipset does not attach

[Kurt Lidl]

>Number:         177072
>Category:       kern
>Synopsis:       AMT serial port for X79 chipset does not attach
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          change-request
>Submitter-Id:   current-users
>Arrival-Date:   Mon Mar 18 15:40:02 UTC 2013
>Closed-Date:
>Last-Modified:
>Originator:     Kurt Lidl
>Release:        FreeBSD FreeBSD 10.0-CURRENT amd64
>Organization:
Pix.Com Technologies, LLC
>Environment:
System: FreeBSD xxxx.pix.net 10.0-CURRENT FreeBSD 10.0-CURRENT #2: Sun Mar 17 22:43:32 EDT 2013     lidl at xxxx.pix.net:/usr/obj/usr/src/sys/GENERIC  amd64

This was sync'd to svn at svn r248325.

>Description:

The AMT serial port on the C600/X79 chipset is not attached
to the uart driver at boot.

>How-To-Repeat:

Boot machine with X79 chipset, notice:
pci0: <simple comms> at device 22.0 (no driver attached)

>Fix:

Apply the following patch:

diff -r fecb548fe499 sys/dev/uart/uart_bus_pci.c
--- a/sys/dev/uart/uart_bus_pci.c	Fri Mar 15 13:56:19 2013 -0400
+++ b/sys/dev/uart/uart_bus_pci.c	Sun Mar 17 23:48:29 2013 -0400
@@ -114,6 +114,7 @@
 { 0x14e4, 0x4344, 0xffff, 0, "Sony Ericsson GC89 PC Card", 0x10},
 { 0x151f, 0x0000, 0xffff, 0, "TOPIC Semiconductor TP560 56k modem", 0x10 },
 { 0x8086, 0x1c3d, 0xffff, 0, "Intel AMT - KT Controller", 0x10 },
+{ 0x8086, 0x1d3d, 0xffff, 0, "Intel C600/X79 Series Chipset KT Controller", 0x10 },
 { 0x8086, 0x2e17, 0xffff, 0, "4 Series Chipset Serial KT Controller", 0x10 },
 { 0x8086, 0x3b67, 0xffff, 0, "5 Series/3400 Series Chipset KT Controller",
 	0x10 },
>Release-Note:
>Audit-Trail:
>Unformatted: