Without the mask it is impossible to take the network interface up
since it returns the following error:
> net eth1: coherent DMA mask is unset
> ifconfig: SIOCSIFFLAGS: Cannot allocate memory
Tested on an out-of-tree ixp425 based board.
Signed-off-by: Christophe Aeschlimann <c.aeschlim...@acn-group.ch>
---
drivers/net/ethernet/xscale/ixp4xx_eth.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/drivers/net/ethernet/xscale/ixp4xx_eth.c
b/drivers/net/ethernet/xscale/ixp4xx_eth.c
index 6958a5e..ff23c5c 100644
--- a/drivers/net/ethernet/xscale/ixp4xx_eth.c
+++ b/drivers/net/ethernet/xscale/ixp4xx_eth.c
@@ -1398,6 +1398,7 @@ static int eth_init_one(struct platform_device *pdev)
return -ENOMEM;
SET_NETDEV_DEV(dev, &pdev->dev);
+ dev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
port = netdev_priv(dev);
port->netdev = dev;
port->id = pdev->id;
--
1.7.9
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