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authorRob Herring <rob.herring@calxeda.com>2012-11-05 06:22:20 +0000
committerDavid S. Miller <davem@davemloft.net>2012-11-07 03:51:13 -0500
commitb821bd8e5a4413c8e28e64d878720978883ebfc8 (patch)
tree1897f0e76c5cbfd4bf504cd06cf97f805cf2c32d /drivers/net
parentnet: calxedaxgmac: enable operate on 2nd frame mode (diff)
downloadlinux-dev-b821bd8e5a4413c8e28e64d878720978883ebfc8.tar.xz
linux-dev-b821bd8e5a4413c8e28e64d878720978883ebfc8.zip
net: calxedaxgmac: remove explicit rx dma buffer polling
New received frames will trigger the rx DMA to poll the DMA descriptors, so there is no need to tell the h/w to poll. We also want to enable dropping frames from the fifo when there is no buffer. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/ethernet/calxeda/xgmac.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/net/ethernet/calxeda/xgmac.c b/drivers/net/ethernet/calxeda/xgmac.c
index 7f5fd17c8002..728fcef4e685 100644
--- a/drivers/net/ethernet/calxeda/xgmac.c
+++ b/drivers/net/ethernet/calxeda/xgmac.c
@@ -966,7 +966,7 @@ static int xgmac_hw_init(struct net_device *dev)
ctrl |= XGMAC_CONTROL_IPC;
writel(ctrl, ioaddr + XGMAC_CONTROL);
- writel(DMA_CONTROL_DFF | DMA_CONTROL_OSF, ioaddr + XGMAC_DMA_CONTROL);
+ writel(DMA_CONTROL_OSF, ioaddr + XGMAC_DMA_CONTROL);
/* Set the HW DMA mode and the COE */
writel(XGMAC_OMR_TSF | XGMAC_OMR_RFD | XGMAC_OMR_RFA |
@@ -1180,8 +1180,6 @@ static int xgmac_rx(struct xgmac_priv *priv, int limit)
xgmac_rx_refill(priv);
- writel(1, priv->base + XGMAC_DMA_RX_POLL);
-
return count;
}