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]

0 files changed, 0 insertions, 0 deletions