[ECOS]How does FEC work on the ADDERII without PHY package being called!!surprise!!

[jason kole]

hi community,
i was surpised to see FEC work on ADDERII without the
code for the phy chip(AM79C874)being actually being
compiled.
the support for the PHY chip is under the following
package.

cdl_package CYGPKG_DEVS_ETH_PHY {
    display       "Ethernet transciever (PHY) support"
    description   "API for ethernet PHY devices"

    parent        CYGPKG_IO_ETH_DRIVERS
    active_if     CYGPKG_IO_ETH_DRIVERS

    include_dir   cyg/io

    compile eth_phy.c

     cdl_option CYGHWR_DEVS_ETH_PHY_AM79C874 {
        display       "AMD 79C874"
        flavor        bool
        default_value 0
        compile       -library=libextras.a AM79C874.c
        description "
          Include support for AMD 79C874 NetPHY"
    }
}

but the package shown above is either included under
the target adderII in ecos.db and nor in the
adderII_redboot_ROMRAM.ecm file.
Infact the above package is never called at all.

so what i wanted to know was 
1)how does the FEC work without the PHY support on the
Adder card and
2)how do we add support for a new PHY chip if our
porting to a new board is based on the AdderII source?

thank u all the folks for having a look at the doubt..

regards,
jk 

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