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ramips: add ramips_setup_dma helper to the ethernet driver
SVN-Revision: 18170
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parent
f69b042df9
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@ -80,10 +80,6 @@ ramips_alloc_dma(struct net_device *dev)
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priv->tx[i].txd4 &= (TX_DMA_QN_MASK | TX_DMA_PN_MASK);
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priv->tx[i].txd4 |= TX_DMA_QN(3) | TX_DMA_PN(1);
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}
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ramips_fe_wr(phys_to_bus(priv->phy_tx), RAMIPS_TX_BASE_PTR0);
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ramips_fe_wr(NUM_TX_DESC, RAMIPS_TX_MAX_CNT0);
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ramips_fe_wr(0, RAMIPS_TX_CTX_IDX0);
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ramips_fe_wr(RAMIPS_PST_DTX_IDX0, RAMIPS_PDMA_RST_CFG);
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/* setup rx ring */
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priv->rx = dma_alloc_coherent(NULL,
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@ -100,12 +96,24 @@ ramips_alloc_dma(struct net_device *dev)
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priv->rx[i].rxd2 |= RX_DMA_LSO;
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priv->rx_skb[i] = new_skb;
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}
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return 0;
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}
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static void
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ramips_setup_dma(struct net_device *dev)
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{
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struct raeth_priv *priv = netdev_priv(dev);
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ramips_fe_wr(phys_to_bus(priv->phy_tx), RAMIPS_TX_BASE_PTR0);
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ramips_fe_wr(NUM_TX_DESC, RAMIPS_TX_MAX_CNT0);
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ramips_fe_wr(0, RAMIPS_TX_CTX_IDX0);
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ramips_fe_wr(RAMIPS_PST_DTX_IDX0, RAMIPS_PDMA_RST_CFG);
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ramips_fe_wr(phys_to_bus(priv->phy_rx), RAMIPS_RX_BASE_PTR0);
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ramips_fe_wr(NUM_RX_DESC, RAMIPS_RX_MAX_CNT0);
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ramips_fe_wr((NUM_RX_DESC - 1), RAMIPS_RX_CALC_IDX0);
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ramips_fe_wr(RAMIPS_PST_DRX_IDX0, RAMIPS_PDMA_RST_CFG);
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return 0;
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}
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static int
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@ -271,6 +279,7 @@ ramips_eth_open(struct net_device *dev)
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struct raeth_priv *priv = netdev_priv(dev);
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ramips_alloc_dma(dev);
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ramips_setup_dma(dev);
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ramips_fe_wr((ramips_fe_rr(RAMIPS_PDMA_GLO_CFG) & 0xff) |
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(RAMIPS_TX_WB_DDONE | RAMIPS_RX_DMA_EN |
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RAMIPS_TX_DMA_EN | RAMIPS_PDMA_SIZE_4DWORDS),
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