net: mvpp2x: remove TX drain from transmit routine

[u-boot] / drivers / net / mvpp2.c

diff --git a/drivers/net/mvpp2.c b/drivers/net/mvpp2.c
index 37056c2b637f329513f034c1af7235bc76bd259e..a7077c7361a0cacf4a092b037aeeae88e5339b7d 100644 (file)
--- a/drivers/net/mvpp2.c
+++ b/drivers/net/mvpp2.c
@@ -5254,21 +5254,6 @@ static int mvpp2_recv(struct udevice *dev, int flags, uchar **packetp)
        return rx_bytes;
 }
 
-/* Drain Txq */
-static void mvpp2_txq_drain(struct mvpp2_port *port, struct mvpp2_tx_queue *txq,
-                           int enable)
-{
-       u32 val;
-
-       mvpp2_write(port->priv, MVPP2_TXQ_NUM_REG, txq->id);
-       val = mvpp2_read(port->priv, MVPP2_TXQ_PREF_BUF_REG);
-       if (enable)
-               val |= MVPP2_TXQ_DRAIN_EN_MASK;
-       else
-               val &= ~MVPP2_TXQ_DRAIN_EN_MASK;
-       mvpp2_write(port->priv, MVPP2_TXQ_PREF_BUF_REG, val);
-}
-
 static int mvpp2_send(struct udevice *dev, void *packet, int length)
 {
        struct mvpp2_port *port = dev_get_priv(dev);
@@ -5312,9 +5297,6 @@ static int mvpp2_send(struct udevice *dev, void *packet, int length)
                tx_done = mvpp2_txq_pend_desc_num_get(port, txq);
        } while (tx_done);
 
-       /* Enable TXQ drain */
-       mvpp2_txq_drain(port, txq, 1);
-
        timeout = 0;
        do {
                if (timeout++ > 10000) {
@@ -5324,9 +5306,6 @@ static int mvpp2_send(struct udevice *dev, void *packet, int length)
                tx_done = mvpp2_txq_sent_desc_proc(port, txq);
        } while (!tx_done);
 
-       /* Disable TXQ drain */
-       mvpp2_txq_drain(port, txq, 0);
-
        return 0;
 }