diff options
| -rw-r--r-- | drivers/net/gianfar.c | 17 | ||||
| -rw-r--r-- | drivers/net/gianfar.h | 1 |
2 files changed, 9 insertions, 9 deletions
diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c index c8735540b1ec..068f9a2cf42c 100644 --- a/drivers/net/gianfar.c +++ b/drivers/net/gianfar.c @@ -151,17 +151,15 @@ static int gfar_alloc_skb_resources(struct net_device *ndev) { struct txbd8 *txbdp; struct rxbd8 *rxbdp; - dma_addr_t addr = 0; void *vaddr; int i; struct gfar_private *priv = netdev_priv(ndev); struct device *dev = &priv->ofdev->dev; - struct gfar __iomem *regs = priv->regs; /* Allocate memory for the buffer descriptors */ vaddr = dma_alloc_coherent(dev, sizeof(*txbdp) * priv->tx_ring_size + sizeof(*rxbdp) * priv->rx_ring_size, - &addr, GFP_KERNEL); + &priv->tx_bd_dma_base, GFP_KERNEL); if (!vaddr) { if (netif_msg_ifup(priv)) pr_err("%s: Could not allocate buffer descriptors!\n", @@ -171,14 +169,9 @@ static int gfar_alloc_skb_resources(struct net_device *ndev) priv->tx_bd_base = vaddr; - /* enet DMA only understands physical addresses */ - gfar_write(®s->tbase0, addr); - /* Start the rx descriptor ring where the tx ring leaves off */ - addr = addr + sizeof(*txbdp) * priv->tx_ring_size; vaddr = vaddr + sizeof(*txbdp) * priv->tx_ring_size; priv->rx_bd_base = vaddr; - gfar_write(®s->rbase0, addr); /* Setup the skbuff rings */ priv->tx_skbuff = kmalloc(sizeof(*priv->tx_skbuff) * @@ -256,6 +249,12 @@ static void gfar_init_mac(struct net_device *ndev) u32 tctrl = 0; u32 attrs = 0; + /* enet DMA only understands physical addresses */ + gfar_write(®s->tbase0, priv->tx_bd_dma_base); + gfar_write(®s->rbase0, priv->tx_bd_dma_base + + sizeof(*priv->tx_bd_base) * + priv->tx_ring_size); + /* Configure the coalescing support */ gfar_write(®s->txic, 0); if (priv->txcoalescing) @@ -1060,7 +1059,7 @@ skip_rx_skbuff: dma_free_coherent(dev, sizeof(*txbdp) * priv->tx_ring_size + sizeof(*rxbdp) * priv->rx_ring_size, - priv->tx_bd_base, gfar_read(&priv->regs->tbase0)); + priv->tx_bd_base, priv->tx_bd_dma_base); } void gfar_start(struct net_device *dev) diff --git a/drivers/net/gianfar.h b/drivers/net/gianfar.h index 2cd94338b5d3..05732faa2f90 100644 --- a/drivers/net/gianfar.h +++ b/drivers/net/gianfar.h @@ -726,6 +726,7 @@ struct gfar_private { unsigned long txic; /* Buffer descriptor pointers */ + dma_addr_t tx_bd_dma_base; struct txbd8 *tx_bd_base; /* First tx buffer descriptor */ struct txbd8 *cur_tx; /* Next free ring entry */ struct txbd8 *dirty_tx; /* First buffer in line |