armv7/ls1021a/etsec: Enable Tx Data and TxBD snooping

To improve eTSEC performance on LS1021A Rev2.0,
snooping of all transmit frames from memory and
all transmit BD memory accesses in enabled.

Signed-off-by: Alison Wang <alison.wang@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
1 file changed