net: gianfar: Clear CAR registers

The CAR1 and CAR2 registers are W1C style registers, to the memset does not
actually clear them.
Signed-off-by: Esben Haabendal <esben@geanix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/freescale/gianfar.c

@@ -3103,6 +3103,9 @@ static void gfar_hw_init(struct gfar_private *priv)
 		/* Mask off the CAM interrupts */
 		gfar_write(&regs->rmon.cam1, 0xffffffff);
 		gfar_write(&regs->rmon.cam2, 0xffffffff);
+		/* Clear the CAR registers (w1c style) */
+		gfar_write(&regs->rmon.car1, 0xffffffff);
+		gfar_write(&regs->rmon.car2, 0xffffffff);
 	}
 
 	/* Initialize ECNTRL */