From c9e58b8802b428cb482a6c9fa71db960923619cf Mon Sep 17 00:00:00 2001
From: =?utf8?q?Lothar=20Wa=C3=9Fmann?= <LW@KARO-electronics.de>
Date: Fri, 9 Oct 2015 10:58:56 +0200
Subject: [PATCH] net: fec_mxc: use a definite delay when waiting for TDAR/RDAR
 to clear

---
 drivers/net/fec_mxc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/fec_mxc.c b/drivers/net/fec_mxc.c
index 343646c939..aed7e07fc6 100644
--- a/drivers/net/fec_mxc.c
+++ b/drivers/net/fec_mxc.c
@@ -724,6 +724,7 @@ static int fec_send(struct eth_device *dev, void *packet, int length)
 	while (--timeout) {
 		if (!(readl(&fec->eth->x_des_active) & FEC_X_DES_ACTIVE_TDAR))
 			break;
+		udelay(1);
 	}
 
 	if (!timeout) {
@@ -751,6 +752,7 @@ static int fec_send(struct eth_device *dev, void *packet, int length)
 		if (!(readw(&fec->tbd_base[fec->tbd_index].status) &
 		    FEC_TBD_READY))
 			break;
+		udelay(1);
 	}
 
 	if (!timeout)
-- 
2.39.2