armv8/ls1046a: RGMII PHY requires internal delay on Tx

Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
diff --git a/drivers/net/fm/ls1046.c b/drivers/net/fm/ls1046.c
index bf55554..6c91fb9 100644
--- a/drivers/net/fm/ls1046.c
+++ b/drivers/net/fm/ls1046.c
@@ -72,12 +72,12 @@
 	if (port == FM1_DTSEC3)
 		if ((rcwsr13 & FSL_CHASSIS2_RCWSR13_EC1) ==
 				FSL_CHASSIS2_RCWSR13_EC1_DTSEC3_RGMII)
-			return PHY_INTERFACE_MODE_RGMII;
+			return PHY_INTERFACE_MODE_RGMII_TXID;
 
 	if (port == FM1_DTSEC4)
 		if ((rcwsr13 & FSL_CHASSIS2_RCWSR13_EC2) ==
 				FSL_CHASSIS2_RCWSR13_EC2_DTSEC4_RGMII)
-			return PHY_INTERFACE_MODE_RGMII;
+			return PHY_INTERFACE_MODE_RGMII_TXID;
 
 	/* handle SGMII, only MAC 2/5/6/9/10 available */
 	switch (port) {