From d41eccd983383caffb50bd5308ca9adf56975a89 Mon Sep 17 00:00:00 2001 From: avg Date: Sun, 8 Apr 2012 19:58:38 +0000 Subject: intpm: reflect the fact that SB800 and later AMD chipsets are not supported They do not have compatible configuration registers in PCI configuration space. Instead their configuration resides in AMD "PM I/O" space (accessed via a pair of I/O space registers). MFC after: 5 days --- sys/pci/intpm.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'sys/pci/intpm.c') diff --git a/sys/pci/intpm.c b/sys/pci/intpm.c index 565b5a2..375a56f 100644 --- a/sys/pci/intpm.c +++ b/sys/pci/intpm.c @@ -99,6 +99,9 @@ intsmb_probe(device_t dev) device_set_desc(dev, "Intel PIIX4 SMBUS Interface"); break; case 0x43851002: + /* SB800 and newer can not be configured in a compatible way. */ + if (pci_get_revid(dev) >= 0x40) + return (ENXIO); device_set_desc(dev, "AMD SB600/700/710/750 SMBus Controller"); /* XXX Maybe force polling right here? */ break; -- cgit v1.1