mv643xx_eth: add mv643xx_eth_shutdown function

mv643xx_eth_shutdown is needed for kexec.

Signed-off-by: Dale Farnsworth <dale@farnsworth.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 14 insertions, 0 deletions

diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c
index 1ee27c360a4b..c9f55bc57edb 100644
--- a/drivers/net/mv643xx_eth.c
+++ b/drivers/net/mv643xx_eth.c
@@ -1516,9 +1516,23 @@ static int mv643xx_eth_shared_remove(struct platform_device *pdev)
         return 0;
 }
 
+static void mv643xx_eth_shutdown(struct platform_device *pdev)
+{
+        struct net_device *dev = platform_get_drvdata(pdev);
+        struct mv643xx_private *mp = netdev_priv(dev);
+        unsigned int port_num = mp->port_num;
+
+        /* Mask all interrupts on ethernet port */
+        mv_write(MV643XX_ETH_INTERRUPT_MASK_REG(port_num), 0);
+        mv_read (MV643XX_ETH_INTERRUPT_MASK_REG(port_num));
+
+        eth_port_reset(port_num);
+}
+
 static struct platform_driver mv643xx_eth_driver = {
         .probe = mv643xx_eth_probe,
         .remove = mv643xx_eth_remove,
+        .shutdown = mv643xx_eth_shutdown,
         .driver = {
                 .name = MV643XX_ETH_NAME,
         },