[PATCH net-next v5 07/11] net: mvmdio: check the MII_ADDR_C45 bit is not set for smi operations
Antoine Tenart
antoine.tenart at free-electrons.com
Thu Jun 15 07:43:22 PDT 2017
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 at free-electrons.com>
Reviewed-by: Florian Fainelli <f.fainelli at gmail.com>
---
drivers/net/ethernet/marvell/mvmdio.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/net/ethernet/marvell/mvmdio.c b/drivers/net/ethernet/marvell/mvmdio.c
index e4aa8e2d2e8a..fe6072aae0a6 100644
--- a/drivers/net/ethernet/marvell/mvmdio.c
+++ b/drivers/net/ethernet/marvell/mvmdio.c
@@ -126,6 +126,9 @@ static int orion_mdio_read(struct mii_bus *bus, int mii_id,
u32 val;
int ret;
+ if (regnum & MII_ADDR_C45)
+ return -EOPNOTSUPP;
+
ret = orion_mdio_wait_ready(&orion_mdio_smi_ops, bus);
if (ret < 0)
goto out;
@@ -157,6 +160,9 @@ static int orion_mdio_write(struct mii_bus *bus, int mii_id,
struct orion_mdio_dev *dev = bus->priv;
int ret;
+ if (regnum & MII_ADDR_C45)
+ return -EOPNOTSUPP;
+
ret = orion_mdio_wait_ready(&orion_mdio_smi_ops, bus);
if (ret < 0)
goto out;
--
2.9.4
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