Broadcom bcm5703/bcm5704, and bcm5705, respectively.
Taken verbatim from the Linux-2.6.12.3 tg3 driver, where the firmware
is explictly marked as non-GPLed (hex-encoded binary blobs are not in
source form, and therefore violate the terms of the GPL), along with
the Boradcom non-GPL copyright allowing distribution of this
hex-encoded firmware.
