linux/drivers/ptp/Kconfig
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   1#
   2# PTP clock support configuration
   3#
   4
   5menu "PTP clock support"
   6
   7comment "Enable Device Drivers -> PPS to see the PTP clock options."
   8        depends on PPS=n
   9
  10config PTP_1588_CLOCK
  11        tristate "PTP clock support"
  12        depends on EXPERIMENTAL
  13        depends on PPS
  14        help
  15          The IEEE 1588 standard defines a method to precisely
  16          synchronize distributed clocks over Ethernet networks. The
  17          standard defines a Precision Time Protocol (PTP), which can
  18          be used to achieve synchronization within a few dozen
  19          microseconds. In addition, with the help of special hardware
  20          time stamping units, it can be possible to achieve
  21          synchronization to within a few hundred nanoseconds.
  22
  23          This driver adds support for PTP clocks as character
  24          devices. If you want to use a PTP clock, then you should
  25          also enable at least one clock driver as well.
  26
  27          To compile this driver as a module, choose M here: the module
  28          will be called ptp.
  29
  30config PTP_1588_CLOCK_GIANFAR
  31        tristate "Freescale eTSEC as PTP clock"
  32        depends on PTP_1588_CLOCK
  33        depends on GIANFAR
  34        help
  35          This driver adds support for using the eTSEC as a PTP
  36          clock. This clock is only useful if your PTP programs are
  37          getting hardware time stamps on the PTP Ethernet packets
  38          using the SO_TIMESTAMPING API.
  39
  40          To compile this driver as a module, choose M here: the module
  41          will be called gianfar_ptp.
  42
  43config PTP_1588_CLOCK_IXP46X
  44        tristate "Intel IXP46x as PTP clock"
  45        depends on PTP_1588_CLOCK
  46        depends on IXP4XX_ETH
  47        help
  48          This driver adds support for using the IXP46X as a PTP
  49          clock. This clock is only useful if your PTP programs are
  50          getting hardware time stamps on the PTP Ethernet packets
  51          using the SO_TIMESTAMPING API.
  52
  53          To compile this driver as a module, choose M here: the module
  54          will be called ptp_ixp46x.
  55
  56comment "Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks."
  57        depends on PTP_1588_CLOCK && (PHYLIB=n || NETWORK_PHY_TIMESTAMPING=n)
  58
  59config DP83640_PHY
  60        tristate "Driver for the National Semiconductor DP83640 PHYTER"
  61        depends on PTP_1588_CLOCK
  62        depends on NETWORK_PHY_TIMESTAMPING
  63        depends on PHYLIB
  64        ---help---
  65          Supports the DP83640 PHYTER with IEEE 1588 features.
  66
  67          This driver adds support for using the DP83640 as a PTP
  68          clock. This clock is only useful if your PTP programs are
  69          getting hardware time stamps on the PTP Ethernet packets
  70          using the SO_TIMESTAMPING API.
  71
  72          In order for this to work, your MAC driver must also
  73          implement the skb_tx_timestamp() function.
  74
  75config PTP_1588_CLOCK_PCH
  76        tristate "Intel PCH EG20T as PTP clock"
  77        depends on PTP_1588_CLOCK
  78        depends on PCH_GBE
  79        help
  80          This driver adds support for using the PCH EG20T as a PTP
  81          clock. The hardware supports time stamping of PTP packets
  82          when using the end-to-end delay (E2E) mechansim. The peer
  83          delay mechansim (P2P) is not supported.
  84
  85          This clock is only useful if your PTP programs are getting
  86          hardware time stamps on the PTP Ethernet packets using the
  87          SO_TIMESTAMPING API.
  88
  89          To compile this driver as a module, choose M here: the module
  90          will be called ptp_pch.
  91
  92endmenu
  93
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