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ramips: add ramips_setup_dma helper to the ethernet driver

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SVN-Revision: 18170
This commit is contained in:
Gabor Juhos 2009-10-26 17:17:34 +00:00
parent f69b042df9
commit 82cc25d5f0
1 changed files with 15 additions and 6 deletions
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21
target/linux/ramips/files/drivers/net/ramips.c
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@ -80,10 +80,6 @@ ramips_alloc_dma(struct net_device *dev)
priv->tx[i].txd4 &= (TX_DMA_QN_MASK | TX_DMA_PN_MASK);
priv->tx[i].txd4 |= TX_DMA_QN(3) | TX_DMA_PN(1);
}
ramips_fe_wr(phys_to_bus(priv->phy_tx), RAMIPS_TX_BASE_PTR0);
ramips_fe_wr(NUM_TX_DESC, RAMIPS_TX_MAX_CNT0);
ramips_fe_wr(0, RAMIPS_TX_CTX_IDX0);
ramips_fe_wr(RAMIPS_PST_DTX_IDX0, RAMIPS_PDMA_RST_CFG);
/* setup rx ring */
priv->rx = dma_alloc_coherent(NULL,
@ -100,12 +96,24 @@ ramips_alloc_dma(struct net_device *dev)
priv->rx[i].rxd2 |= RX_DMA_LSO;
priv->rx_skb[i] = new_skb;
}
return 0;
}
static void
ramips_setup_dma(struct net_device *dev)
{
struct raeth_priv *priv = netdev_priv(dev);
ramips_fe_wr(phys_to_bus(priv->phy_tx), RAMIPS_TX_BASE_PTR0);
ramips_fe_wr(NUM_TX_DESC, RAMIPS_TX_MAX_CNT0);
ramips_fe_wr(0, RAMIPS_TX_CTX_IDX0);
ramips_fe_wr(RAMIPS_PST_DTX_IDX0, RAMIPS_PDMA_RST_CFG);
ramips_fe_wr(phys_to_bus(priv->phy_rx), RAMIPS_RX_BASE_PTR0);
ramips_fe_wr(NUM_RX_DESC, RAMIPS_RX_MAX_CNT0);
ramips_fe_wr((NUM_RX_DESC - 1), RAMIPS_RX_CALC_IDX0);
ramips_fe_wr(RAMIPS_PST_DRX_IDX0, RAMIPS_PDMA_RST_CFG);
return 0;
}
static int
@ -271,6 +279,7 @@ ramips_eth_open(struct net_device *dev)
struct raeth_priv *priv = netdev_priv(dev);
ramips_alloc_dma(dev);
ramips_setup_dma(dev);
ramips_fe_wr((ramips_fe_rr(RAMIPS_PDMA_GLO_CFG) & 0xff) |
(RAMIPS_TX_WB_DDONE | RAMIPS_RX_DMA_EN |
RAMIPS_TX_DMA_EN | RAMIPS_PDMA_SIZE_4DWORDS),