ramips: Allow ethernet interface to be taken down and up again

Taking the ramips ethernet interface down and up again resulted in the
driver not receiving any frames anymore. Fix this by correctly disabling
interrupts in the hw on ifdown.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>

SVN-Revision: 23243

target/linux/ramips/files/drivers/net/ramips.c

@@ -406,6 +406,10 @@ ramips_eth_stop(struct net_device *dev)
 	ramips_fe_wr(ramips_fe_rr(RAMIPS_PDMA_GLO_CFG) &
 		     ~(RAMIPS_TX_WB_DDONE | RAMIPS_RX_DMA_EN | RAMIPS_TX_DMA_EN),
 		     RAMIPS_PDMA_GLO_CFG);
+
+	/* disable all interrupts in the hw */
+	ramips_fe_wr(0, RAMIPS_FE_INT_ENABLE);
+
 	free_irq(dev->irq, dev);
 	netif_stop_queue(dev);
 	tasklet_kill(&priv->tx_housekeeping_tasklet);