From: Grant Likely <grant.lik...@secretlab.ca>
The driver triggers a BUG_ON() when allocating DMA buffers if the
arch/powerpc dma_ops from the of_platform device are not copied
into net_device structure.
Signed-off-by: Grant Likely <grant.lik...@secretlab.ca>
---
Becky, does this look better to you?
g.
drivers/net/fec_mpc52xx.c | 19 ++++++++++++-------
1 files changed, 12 insertions(+), 7 deletions(-)
diff --git a/drivers/net/fec_mpc52xx.c b/drivers/net/fec_mpc52xx.c
index 049b0a7..f99463f 100644
--- a/drivers/net/fec_mpc52xx.c
+++ b/drivers/net/fec_mpc52xx.c
@@ -129,7 +129,8 @@ static void mpc52xx_fec_free_rx_buffers(struct net_device
*dev, struct bcom_task
struct sk_buff *skb;
skb = bcom_retrieve_buffer(s, NULL, (struct bcom_bd **)&bd);
- dma_unmap_single(&dev->dev, bd->skb_pa, skb->len,
DMA_FROM_DEVICE);
+ dma_unmap_single(dev->dev.parent, bd->skb_pa, skb->len,
+ DMA_FROM_DEVICE);
kfree_skb(skb);
}
}
@@ -150,7 +151,7 @@ static int mpc52xx_fec_alloc_rx_buffers(struct net_device
*dev, struct bcom_task
bd = (struct bcom_fec_bd *)bcom_prepare_next_buffer(rxtsk);
bd->status = FEC_RX_BUFFER_SIZE;
- bd->skb_pa = dma_map_single(&dev->dev, skb->data,
+ bd->skb_pa = dma_map_single(dev->dev.parent, skb->data,
FEC_RX_BUFFER_SIZE, DMA_FROM_DEVICE);
bcom_submit_next_buffer(rxtsk, skb);
@@ -388,7 +389,8 @@ static int mpc52xx_fec_hard_start_xmit(struct sk_buff *skb,
struct net_device *d
bcom_prepare_next_buffer(priv->tx_dmatsk);
bd->status = skb->len | BCOM_FEC_TX_BD_TFD | BCOM_FEC_TX_BD_TC;
- bd->skb_pa = dma_map_single(&dev->dev, skb->data, skb->len,
DMA_TO_DEVICE);
+ bd->skb_pa = dma_map_single(dev->dev.parent, skb->data, skb->len,
+ DMA_TO_DEVICE);
bcom_submit_next_buffer(priv->tx_dmatsk, skb);
@@ -430,7 +432,8 @@ static irqreturn_t mpc52xx_fec_tx_interrupt(int irq, void
*dev_id)
struct bcom_fec_bd *bd;
skb = bcom_retrieve_buffer(priv->tx_dmatsk, NULL,
(struct bcom_bd **)&bd);
- dma_unmap_single(&dev->dev, bd->skb_pa, skb->len,
DMA_TO_DEVICE);
+ dma_unmap_single(dev->dev.parent, bd->skb_pa, skb->len,
+ DMA_TO_DEVICE);
dev_kfree_skb_irq(skb);
}
@@ -455,7 +458,8 @@ static irqreturn_t mpc52xx_fec_rx_interrupt(int irq, void
*dev_id)
rskb = bcom_retrieve_buffer(priv->rx_dmatsk, &status,
(struct bcom_bd **)&bd);
- dma_unmap_single(&dev->dev, bd->skb_pa, rskb->len,
DMA_FROM_DEVICE);
+ dma_unmap_single(dev->dev.parent, bd->skb_pa, rskb->len,
+ DMA_FROM_DEVICE);
/* Test for errors in received frame */
if (status & BCOM_FEC_RX_BD_ERRORS) {
@@ -464,7 +468,8 @@ static irqreturn_t mpc52xx_fec_rx_interrupt(int irq, void
*dev_id)
bcom_prepare_next_buffer(priv->rx_dmatsk);
bd->status = FEC_RX_BUFFER_SIZE;
- bd->skb_pa = dma_map_single(&dev->dev, rskb->data,
+ bd->skb_pa = dma_map_single(dev->dev.parent,
+ rskb->data,
FEC_RX_BUFFER_SIZE, DMA_FROM_DEVICE);
bcom_submit_next_buffer(priv->rx_dmatsk, rskb);
@@ -499,7 +504,7 @@ static irqreturn_t mpc52xx_fec_rx_interrupt(int irq, void
*dev_id)
bcom_prepare_next_buffer(priv->rx_dmatsk);
bd->status = FEC_RX_BUFFER_SIZE;
- bd->skb_pa = dma_map_single(&dev->dev, skb->data,
+ bd->skb_pa = dma_map_single(dev->dev.parent, skb->data,
FEC_RX_BUFFER_SIZE, DMA_FROM_DEVICE);
bcom_submit_next_buffer(priv->rx_dmatsk, skb);
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