From: Lothar Waßmann <LW@KARO-electronics.de>
Date: Fri, 9 Oct 2015 08:58:56 +0000 (+0200)
Subject: net: fec_mxc: use a definite delay when waiting for TDAR/RDAR to clear
X-Git-Tag: KARO-TX6UL-2015-10-23~33
X-Git-Url: https://git.kernelconcepts.de/?p=karo-tx-uboot.git;a=commitdiff_plain;h=c9e58b8802b428cb482a6c9fa71db960923619cf;ds=sidebyside

net: fec_mxc: use a definite delay when waiting for TDAR/RDAR to clear
---

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)