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Message-Id: <1341879370-23385-2-git-send-email-robherring2@gmail.com> Date: Mon, 9 Jul 2012 19:16:07 -0500 From: Rob Herring <robherring2@...il.com> To: netdev@...r.kernel.org, linux-kernel@...r.kernel.org Cc: "David S. Miller" <davem@...emloft.net>, Rob Herring <rob.herring@...xeda.com> Subject: [PATCH 1/4] net: calxedaxgmac: fix net timeout recovery From: Rob Herring <rob.herring@...xeda.com> Fix net tx watchdog timeout recovery. The descriptor ring was reset, but the DMA engine was not reset to the beginning of the ring. Signed-off-by: Rob Herring <rob.herring@...xeda.com> --- drivers/net/ethernet/calxeda/xgmac.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/calxeda/xgmac.c b/drivers/net/ethernet/calxeda/xgmac.c index 11f667f..c4fd2e3 100644 --- a/drivers/net/ethernet/calxeda/xgmac.c +++ b/drivers/net/ethernet/calxeda/xgmac.c @@ -933,6 +933,7 @@ static void xgmac_tx_err(struct xgmac_priv *priv) desc_init_tx_desc(priv->dma_tx, DMA_TX_RING_SZ); priv->tx_tail = 0; priv->tx_head = 0; + writel(priv->dma_tx_phy, priv->base + XGMAC_DMA_TX_BASE_ADDR); writel(reg | DMA_CONTROL_ST, priv->base + XGMAC_DMA_CONTROL); writel(DMA_STATUS_TU | DMA_STATUS_TPS | DMA_STATUS_NIS | DMA_STATUS_AIS, -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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