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Adds complete support for hardware-based PTP (IEEE 1588) timestamping to the AMD XGBE driver. - Initialize and configure the MAC PTP registers based on link speed and reference clock. - Support both 50MHz and 125MHz PTP reference clocks. - Update the driver interface and version data to support PTP clock frequency selection. Signed-off-by: Raju Rangoju <Raju.Rangoju@amd.com> Link: https://patch.msgid.link/20250718185628.4038779-3-Raju.Rangoju@amd.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>