• Giuseppe CAVALLARO's avatar
    stmmac: parameters auto-tuning through HW cap reg · 19e30c14
    Giuseppe CAVALLARO authored
    
    
    New GMAC devices (newer than the databook 3.50a) have the
    HW capability register that provides which features are actually
    supported by the hardware.
    
    On old devices many information have to be passed through the
    platform, for example: enhanced descriptor structure,
    TX COE etc. These are mandatory to properly configure the driver.
    This remains still valid because the driver has to support old
    Synopsys devices but now it's also able to override them using the
    values from the HW capability register if supported.
    Signed-off-by: default avatarGiuseppe Cavallaro <peppe.cavallaro@st.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    19e30c14