net: ftgmac100: Simplify condition on HW arbitration

The MAC ID is sufficient to indicate this is a ast2600.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Jacky Chou <jacky_chou@aspeedtech.com>
Link: https://patch.msgid.link/20260206-ftgmac-cleanup-v5-13-ad28a9067ea7@aspeedtech.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

Author: lunn

drivers/net/ethernet/faraday/ftgmac100.c

@@ -2046,13 +2046,13 @@ static int ftgmac100_probe(struct platform_device *pdev)
 		err = ftgmac100_setup_clk(priv);
 		if (err)
 			goto err;
-
-		/* Disable ast2600 problematic HW arbitration */
-		if (priv->mac_id == FTGMAC100_AST2600)
-			iowrite32(FTGMAC100_TM_DEFAULT,
-				  priv->base + FTGMAC100_OFFSET_TM);
 	}
 
+	/* Disable ast2600 problematic HW arbitration */
+	if (priv->mac_id == FTGMAC100_AST2600)
+		iowrite32(FTGMAC100_TM_DEFAULT,
+			  priv->base + FTGMAC100_OFFSET_TM);
+
 	/* Default ring sizes */
 	priv->rx_q_entries = priv->new_rx_q_entries = DEF_RX_QUEUE_ENTRIES;
 	priv->tx_q_entries = priv->new_tx_q_entries = DEF_TX_QUEUE_ENTRIES;