The CPTS hardware doesn't support PPS signal generation. Using the GenFx (periodic signal generator) function, it is possible to model a PPS signal followed by routing it via the time sync router to the CPTS_HWy_TS_PUSH (hardware time stamp) input, in order to generate timestamps at 1 second intervals. This series adds driver support for enabling PPS signal generation. Additionally, the documentation for the am65-cpts driver is updated with the bindings for the "ti,pps" property, which is used to inform the pair [CPTS_HWy_TS_PUSH, GenFx] to the cpts driver. The PPS example is enabled for AM625-SK board by default, by adding the timesync_router node to the AM62x SoC, and configuring it for PPS in the AM625-SK board dts. Grygorii Strashko (3): dt-binding: net: ti: am65x-cpts: add 'ti,pps' property net: ethernet: ti: am65-cpts: add pps support net: ethernet: ti: am65-cpts: adjust pps following ptp changes Siddharth Vadapalli (2): arm64: dts: ti: k3-am62-main: Add timesync router node arm64: dts: ti: k3-am625-sk: Add cpsw3g cpts PPS support .../bindings/net/ti,k3-am654-cpts.yaml | 8 + arch/arm64/boot/dts/ti/k3-am62-main.dtsi | 9 ++ arch/arm64/boot/dts/ti/k3-am625-sk.dts | 20 +++ drivers/net/ethernet/ti/am65-cpts.c | 144 ++++++++++++++++-- 4 files changed, 166 insertions(+), 15 deletions(-) -- 2.25.1
