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Intel

EP80579 Software Drivers for Embedded Applications on FreeBSD*

September 2009 GSG

Order Number: 320152-005US 27

Runtime Configuration—EP80579 Integrated Processor

Compilation of the FreeBSD GCU and GbE drivers separately from the rest of the

software package is possible. Ensure that GCU drivers are built and loaded before the

GbE drivers. Enter the /EP805XX_release/Embedded/src/GbE and /EP805XX_release/

Embedded/src/GCU directory and execute the following commands:

make clean

make

make install (this will install the driver for persistency)

The Gigabit Ethernet driver compiles, is installed, and the resulting iegbe.ko file is

placed in the /EP805XX_release/Embedded/build directory.

5.6.2 FreeBSD Module Load/Unload Instructions

Note: This step is not necessary if the make install command above succeeded. This is only

necessary to understand how to load and unload this driver individually.

To load the FreeBSD Gigabit Ethernet driver, execute the following command from the

directory where the compiled executable resides:

kldload ./gcu.ko

kldload ./iegbe.ko

To unload the FreeBSD Gigabit Ethernet driver, execute the following command:

kldunload iegbe.ko

kldload gcu.ko

The kldstat command may be used to confirm if a module has been loaded or

unloaded:

kldstat | grep iegbe

kldstat | grep gcu

The output of the kldstat command lists all modules loaded in the system. Look for an

entry titled “iegbe” and “gcu”.

Configuration of the Gigabit Ethernet ports provided by the EP80579 integrated

processor is through the traditional FreeBSD network command, ifconfig. Please consult

the man pages for ifconfig for details.

5.7 SMBus

5.7.1 FreeBSD Compilation Instructions

All source files for the SMBus FreeBSD support are available in the FreeBSD kernel’s

open source.

5.7.2 FreeBSD Module Load/Unload Instructions

Three drivers must be loaded to support SMBus:

•smb.ko

•smbus.ko

• ichsmb.ko

The smb.ko and smbus.ko drivers are installed using one command:

kldload smb

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