linux-imx

#

# PTP clock support configuration

#

​

menu "PTP clock support"

​

config PTP_1588_CLOCK

    tristate "PTP clock support"

    depends on NET && POSIX_TIMERS

    select PPS

    select NET_PTP_CLASSIFY

    help

      The IEEE 1588 standard defines a method to precisely

      synchronize distributed clocks over Ethernet networks. The

      standard defines a Precision Time Protocol (PTP), which can

      be used to achieve synchronization within a few dozen

      microseconds. In addition, with the help of special hardware

      time stamping units, it can be possible to achieve

      synchronization to within a few hundred nanoseconds.

​

      This driver adds support for PTP clocks as character

      devices. If you want to use a PTP clock, then you should

      also enable at least one clock driver as well.

​

      To compile this driver as a module, choose M here: the module

      will be called ptp.

​

config PTP_1588_CLOCK_DTE

    tristate "Broadcom DTE as PTP clock"

    depends on PTP_1588_CLOCK

    depends on NET && HAS_IOMEM

    depends on ARCH_BCM_MOBILE || (ARCH_BCM_IPROC && !(ARCH_BCM_NSP || ARCH_BCM_5301X)) || COMPILE_TEST

    default y

    help

      This driver adds support for using the Digital timing engine

      (DTE) in the Broadcom SoC's as a PTP clock.

​

      The clock can be used in both wired and wireless networks

      for PTP purposes.

​

      To compile this driver as a module, choose M here: the module

      will be called ptp_dte.

​

config PTP_1588_CLOCK_QORIQ

    tristate "Freescale QorIQ 1588 timer as PTP clock"

    depends on GIANFAR || FSL_DPAA_ETH || FSL_ENETC || FSL_ENETC_VF

    depends on PTP_1588_CLOCK

    default y

    help

      This driver adds support for using the Freescale QorIQ 1588

      timer as a PTP clock. This clock is only useful if your PTP

      programs are getting hardware time stamps on the PTP Ethernet

      packets using the SO_TIMESTAMPING API.

​

      To compile this driver as a module, choose M here: the module

      will be called ptp-qoriq.

​

config PTP_1588_CLOCK_IXP46X

    tristate "Intel IXP46x as PTP clock"

    depends on IXP4XX_ETH

    depends on PTP_1588_CLOCK

    default y

    help