Temperature sensors on HP N40L?

[Simon Burge <simonb%thistledown.com.au@localhost>]

Hi folks,

I have a HP N40L microserver running NetBSD 6.0.  Envstat reports
the following sensor:

                      Current  CritMax  WarnMax  WarnMin  CritMin  Unit
[amdtemp0]
  cpu0 temperature:    36.500                                     degC


but the BIOS says there's a system, CPU and northbridge temp.  These
temps were 25C, 37C and 42C when checked just after getting the above
temp from envstat.


"i2cscan iic0" reports:

        iic0: found device at 0x18
        iic0: found device at 0x30
        iic0: found device at 0x50
        iic0: 3 devices found

I'd assume that the system temp would be one of the devices on the iic
bus?

The PCI device list is below, but on a PC would the northbridge be on
"the other side" of the PCI devices?

000:00:0: AMD RS880 Host Bridge (host bridge)
000:02:0: AMD RS780 PCI-PCI Bridge (ext gfx port 0) (PCI bridge)
000:04:0: AMD RS780 PCI-PCIE Bridge (port 0) (PCI bridge)
000:06:0: AMD RS780 PCI-PCIE Bridge (port 2) (PCI bridge)
000:17:0: ATI Technologies SB700/SB800 SATA Controller (AHCI mode) (SATA mass 
storage, interface 0x01, revision 0x40)
000:18:0: ATI Technologies SB700/SB800 USB OHCI Controller (USB serial bus, 
interface 0x10)
000:18:2: ATI Technologies SB700/SB800 USB EHCI Controller (USB serial bus, 
interface 0x20)
000:19:0: ATI Technologies SB700/SB800 USB OHCI Controller (USB serial bus, 
interface 0x10)
000:19:2: ATI Technologies SB700/SB800 USB EHCI Controller (USB serial bus, 
interface 0x20)
000:20:0: ATI Technologies SB600/SB700/SB800 SMBus Controller (SMBus serial 
bus, revision 0x42)
000:20:1: ATI Technologies SB700/SB800 IDE Controller (IDE mass storage, 
interface 0x8a, revision 0x40)
000:20:3: ATI Technologies SB700/SB800 LPC Host Controller (ISA bridge, 
revision 0x40)
000:20:4: ATI Technologies SB600 PCI to PCI Bridge (PCI bridge, interface 0x01, 
revision 0x40)
000:22:0: ATI Technologies SB700/SB800 USB OHCI Controller (USB serial bus, 
interface 0x10)
000:22:2: ATI Technologies SB700/SB800 USB EHCI Controller (USB serial bus, 
interface 0x20)
000:24:0: AMD AMD64 Family10h HyperTransport Configuration (host bridge)
000:24:1: AMD AMD64 Family10h Address Map Configuration (host bridge)
000:24:2: AMD AMD64 Family10h DRAM Configuration (host bridge)
000:24:3: AMD AMD64 Family10h Miscellaneous Configuration (host bridge)
000:24:4: AMD AMD64 Family10h Link Configuration (host bridge)
001:00:0: NVIDIA GeForce 210 (VGA display, revision 0xa2)
001:00:1: NVIDIA product 0x0be3 (multimedia, subclass 0x03, revision 0xa1)
002:00:0: Texas Instruments product 0x8231 (PCI bridge, revision 0x03)
003:00:0: Oxford Semiconductor product 0x950a (serial communications, interface 
0x06)
003:00:1: Oxford Semiconductor product 0x9510 (parallel communications, 
interface 0x01)
004:00:0: Broadcom BCM5723 NetXtreme 1000baseT Ethernet (ethernet network, 
revision 0x10)

Any hints or ideas on how NetBSD can access the other two temperatures?

Cheers,
Simon.