Revert "net: bcmgenet: Reset RBUF on first open"

This reverts commit be05083.

Author: popcornmix

drivers/net/ethernet/broadcom/genet/bcmgenet.c

@@ -3310,7 +3310,7 @@ static void bcmgenet_get_hw_addr(struct bcmgenet_priv *priv,
 }
 
 /* Returns a reusable dma control register value */
-static u32 bcmgenet_dma_disable(struct bcmgenet_priv *priv, bool flush_rx)
+static u32 bcmgenet_dma_disable(struct bcmgenet_priv *priv)
 {
 	unsigned int i;
 	u32 reg;
@@ -3335,14 +3335,6 @@ static u32 bcmgenet_dma_disable(struct bcmgenet_priv *priv, bool flush_rx)
 	udelay(10);
 	bcmgenet_umac_writel(priv, 0, UMAC_TX_FLUSH);
 
-	if (flush_rx) {
-	    reg = bcmgenet_rbuf_ctrl_get(priv);
-	    bcmgenet_rbuf_ctrl_set(priv, reg | BIT(0));
-	    udelay(10);
-	    bcmgenet_rbuf_ctrl_set(priv, reg);
-	    udelay(10);
-	}
-
 	return dma_ctrl;
 }
 
@@ -3406,8 +3398,8 @@ static int bcmgenet_open(struct net_device *dev)
 
 	bcmgenet_set_hw_addr(priv, dev->dev_addr);
 
-	/* Disable RX/TX DMA and flush TX and RX queues */
-	dma_ctrl = bcmgenet_dma_disable(priv, true);
+	/* Disable RX/TX DMA and flush TX queues */
+	dma_ctrl = bcmgenet_dma_disable(priv);
 
 	/* Reinitialize TDMA and RDMA and SW housekeeping */
 	ret = bcmgenet_init_dma(priv);
@@ -4292,7 +4284,7 @@ static int bcmgenet_resume(struct device *d)
 			bcmgenet_hfb_create_rxnfc_filter(priv, rule);
 
 	/* Disable RX/TX DMA and flush TX queues */
-	dma_ctrl = bcmgenet_dma_disable(priv, false);
+	dma_ctrl = bcmgenet_dma_disable(priv);
 
 	/* Reinitialize TDMA and RDMA and SW housekeeping */
 	ret = bcmgenet_init_dma(priv);