From 3b5ec501f5b1e70443fbb356b181ec167af5a9c4 Mon Sep 17 00:00:00 2001
From: nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Sun, 4 Jul 2010 02:20:05 +0000
Subject: [PATCH] ar71xx: merge ethernet driver fixes from r22054, r22055

git-svn-id: svn://svn.openwrt.org/openwrt/branches/backfire@22056 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
 .../linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c   | 8 ++++++++
 1 file changed, 8 insertions(+)

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 8d61294be..54a6005b5 100644
--- 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);