What is the difference between these..?
1 etsec-ptp, 2dpaa-fman-ptp-time, 3 dpaa2-ptp, 4 enetc-ptp
etsec-ptp is used on LS1021A platform.
dpaa-fman-ptp-time is used on LS1043A and LS1046A platform.
dpaa2-ptp is used on LS1088A, LS2088A and LX2160A platforms.
enetc-ptp is used on LS1028A platform.
How to configure Freescale QorIQ 1588 timer based PTP clock , It is through dts. . ?
Just enable drivers/ptp/ptp_qoriq.c, enable CONFIG_PTP_1588_CLOCK_QORIQ in Kernel configuration file.
dpaa-fman-ptp-time is used on LS1046A platform，
FMan Real Time Clock support Is there any introduction to the use of related documents .. ?
Please refer to Documentation/devicetree/bindings/ptp/ptp-qoriq.txt in Linux Kernel source code.