ar71xx: merge ethernet driver fixes from r22054, r22055

git-svn-id: svn://svn.openwrt.org/openwrt/branches/backfire@22056 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c
index 8d61294beb1b99934f072ac61dd03b7eed0456c2..54a6005b5936672d27c08bcf6ab85b5e1411f562 100644 (file)
--- a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c
+++ b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c
@@ -435,6 +435,12 @@ static void ag71xx_dma_reset(struct ag71xx *ag)
        ag71xx_wr(ag, AG71XX_REG_RX_CTRL, 0);
        ag71xx_wr(ag, AG71XX_REG_TX_CTRL, 0);
 
+       /*
+        * give the hardware some time to really stop all rx/tx activity
+        * clearing the descriptors too early causes random memory corruption
+        */
+       mdelay(1);
+
        /* clear descriptor addresses */
        ag71xx_wr(ag, AG71XX_REG_TX_DESC, 0);
        ag71xx_wr(ag, AG71XX_REG_RX_DESC, 0);
@@ -554,6 +560,8 @@ static int ag71xx_open(struct net_device *dev)
        if (ret)
                goto err;
 
+       ag71xx_hw_init(ag);
+
        napi_enable(&ag->napi);
 
        netif_carrier_off(dev);