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net: mvmdio: check the MII_ADDR_C45 bit is not set for smi operations
Add a check for the read and write smi operations, to ensure the MII_ADDR_C45 bit isn't set. This will be needed as soon as the xSMI support is added to the mvmdio driver. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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1 changed files with 6 additions and 0 deletions
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@ -126,6 +126,9 @@ static int orion_mdio_read(struct mii_bus *bus, int mii_id,
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u32 val;
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int ret;
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if (regnum & MII_ADDR_C45)
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return -EOPNOTSUPP;
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ret = orion_mdio_wait_ready(&orion_mdio_smi_ops, bus);
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if (ret < 0)
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goto out;
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@ -157,6 +160,9 @@ static int orion_mdio_write(struct mii_bus *bus, int mii_id,
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struct orion_mdio_dev *dev = bus->priv;
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int ret;
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if (regnum & MII_ADDR_C45)
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return -EOPNOTSUPP;
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ret = orion_mdio_wait_ready(&orion_mdio_smi_ops, bus);
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if (ret < 0)
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goto out;
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