From eb5e1b29a5ff4b782796ec9d17b443b5b38b7ffe Mon Sep 17 00:00:00 2001 From: Rob Herring <rob.herring@calxeda.com> Date: Mon, 9 Jul 2012 14:16:07 +0000 Subject: [PATCH] net: calxedaxgmac: fix net timeout recovery 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@calxeda.com> Signed-off-by: David S. Miller <davem@davemloft.net> --- 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 11f667f6131a..c4fd2e3600c7 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, -- GitLab