diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c
index 3aafa535fa2a..62e784accf3b 100644
--- a/drivers/net/r8169.c
+++ b/drivers/net/r8169.c
@@ -558,10 +558,10 @@ static void mdio_write(void __iomem *ioaddr, int reg_addr, int value)
 		udelay(25);
 	}
 	/*
-	 * Some configurations require a small delay even after the write
-	 * completed indication or the next write might fail.
+	 * According to hardware specs a 20us delay is required after write
+	 * complete indication, but before sending next command.
 	 */
-	udelay(25);
+	udelay(20);
 }
 
 static int mdio_read(void __iomem *ioaddr, int reg_addr)
@@ -581,6 +581,12 @@ static int mdio_read(void __iomem *ioaddr, int reg_addr)
 		}
 		udelay(25);
 	}
+	/*
+	 * According to hardware specs a 20us delay is required after read
+	 * complete indication, but before sending next command.
+	 */
+	udelay(20);
+
 	return value;
 }