diff options
| author | Pranav Tilak <[email protected]> | 2026-01-29 13:40:54 +0530 |
|---|---|---|
| committer | Michal Simek <[email protected]> | 2026-02-11 09:41:26 +0100 |
| commit | ce6fc049b700894b2a8f25778103cf4f2d29cb34 (patch) | |
| tree | 8643a8e564deccc69ec4813b1108f2de0260ff70 /drivers | |
| parent | 85bbd16750ed7a4907666bfa01effc39ef1f4c0c (diff) | |
net: phy: mscc: Enable RMII clock output for VSC8541 PHY
Set RMII reference clock output to enabled (1) by default for VSC8541
PHY in RMII mode. The RMII specification requires a 50MHz reference
clock, and many board designs expect the PHY to provide this clock to
the MAC controller.
Previously, the driver defaulted rmii_clk_out to 0 (disabled) for all
interface modes, which caused the PHY to not output the required 50MHz
clock. This resulted in MAC-PHY communication failures and prevented
network operations like DHCP from working on RMII-configured boards.
This change alligns with the hardware power-up default behavior and
aligns with both the generic PHY driver and Linux MSCC PHY driver
implementations.
Signed-off-by: Pranav Tilak <[email protected]>
Signed-off-by: Michal Simek <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/phy/mscc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/phy/mscc.c b/drivers/net/phy/mscc.c index 7263887b9ce..a65e81dff0c 100644 --- a/drivers/net/phy/mscc.c +++ b/drivers/net/phy/mscc.c @@ -1388,7 +1388,7 @@ static int vsc8541_config(struct phy_device *phydev) return -EINVAL; } /* Default RMII Clk Output to 0=OFF/1=ON */ - rmii_clk_out = 0; + rmii_clk_out = 1; retval = vsc8531_vsc8541_clk_skew_config(phydev); if (retval != 0) |