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authorRob Herring <rob.herring@calxeda.com>2012-11-05 06:22:22 +0000
committerDavid S. Miller <davem@davemloft.net>2012-11-07 03:51:14 -0500
commit9169963d8090288995b19bc8065d305843bad617 (patch)
treee55333052d1c4b638ada1d5ce506dcf73a0784e9 /drivers
parentnet: calxedaxgmac: use raw i/o accessors in rx and tx paths (diff)
downloadlinux-dev-9169963d8090288995b19bc8065d305843bad617.tar.xz
linux-dev-9169963d8090288995b19bc8065d305843bad617.zip
net: calxedaxgmac: drop some unnecessary register writes
The interrupts have already been cleared, so we don't need to clear them again. Also, we could miss interrupts if they are cleared, but we don't process the packet. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ethernet/calxeda/xgmac.c6
1 files changed, 0 insertions, 6 deletions
diff --git a/drivers/net/ethernet/calxeda/xgmac.c b/drivers/net/ethernet/calxeda/xgmac.c
index 84cd40e4f081..826321910efc 100644
--- a/drivers/net/ethernet/calxeda/xgmac.c
+++ b/drivers/net/ethernet/calxeda/xgmac.c
@@ -846,9 +846,6 @@ static void xgmac_free_dma_desc_rings(struct xgmac_priv *priv)
static void xgmac_tx_complete(struct xgmac_priv *priv)
{
int i;
- void __iomem *ioaddr = priv->base;
-
- writel(DMA_STATUS_TU | DMA_STATUS_NIS, ioaddr + XGMAC_DMA_STATUS);
while (dma_ring_cnt(priv->tx_head, priv->tx_tail, DMA_TX_RING_SZ)) {
unsigned int entry = priv->tx_tail;
@@ -1139,9 +1136,6 @@ static int xgmac_rx(struct xgmac_priv *priv, int limit)
struct sk_buff *skb;
int frame_len;
- writel(DMA_STATUS_RI | DMA_STATUS_NIS,
- priv->base + XGMAC_DMA_STATUS);
-
entry = priv->rx_tail;
p = priv->dma_rx + entry;
if (desc_get_owner(p))