commit: http://blackfin.uclinux.org/git/?p=linux-kernel;a=commitdiff;h=3cb17bc9e9a480e348c18ac75792998f356e147e
branch: http://blackfin.uclinux.org/git/?p=linux-kernel;a=shortlog;h=refs/heads/2012R1

After wake up from mem, ping fails to work.
This patch fix the resume function in stmmac driver.

Signed-off-by: Bob Liu <[email protected]>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 1b26741..7237493 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -2205,6 +2205,15 @@ int stmmac_resume(struct net_device *ndev)
 		priv->hw->mac->pmt(priv->ioaddr, 0);
 
 	netif_device_attach(ndev);
+	priv->dirty_tx = 0;
+	priv->cur_tx = 0;
+	priv->cur_rx = 0;
+	priv->dirty_rx = 0;
+
+	/* DMA initialization and SW reset */
+	priv->hw->dma->init(priv->ioaddr, priv->plat->pbl,
+			priv->dma_tx_phy, priv->dma_rx_phy);
+	priv->hw->mac->core_init(priv->ioaddr);
 
 	/* Enable the MAC and DMA */
 	stmmac_set_mac(priv->ioaddr, true);
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