drivers/ptp/Kconfig

   1 #
   2 # PTP clock support configuration
   3 #
   4
   5 menu "PTP clock support"
   6
   7 config PTP_1588_CLOCK
   8         tristate "PTP clock support"
   9         select PPS
  10         select NET_PTP_CLASSIFY
  11         help
  12           The IEEE 1588 standard defines a method to precisely
  13           synchronize distributed clocks over Ethernet networks. The
  14           standard defines a Precision Time Protocol (PTP), which can
  15           be used to achieve synchronization within a few dozen
  16           microseconds. In addition, with the help of special hardware
  17           time stamping units, it can be possible to achieve
  18           synchronization to within a few hundred nanoseconds.
  19
  20           This driver adds support for PTP clocks as character
  21           devices. If you want to use a PTP clock, then you should
  22           also enable at least one clock driver as well.
  23
  24           To compile this driver as a module, choose M here: the module
  25           will be called ptp.
  26
  27 config PTP_1588_CLOCK_GIANFAR
  28         tristate "Freescale eTSEC as PTP clock"
  29         depends on GIANFAR
  30         select PTP_1588_CLOCK
  31         default y
  32         help
  33           This driver adds support for using the eTSEC as a PTP
  34           clock. This clock is only useful if your PTP programs are
  35           getting hardware time stamps on the PTP Ethernet packets
  36           using the SO_TIMESTAMPING API.
  37
  38           To compile this driver as a module, choose M here: the module
  39           will be called gianfar_ptp.
  40
  41 config PTP_1588_CLOCK_IXP46X
  42         tristate "Intel IXP46x as PTP clock"
  43         depends on IXP4XX_ETH
  44         select PTP_1588_CLOCK
  45         default y
  46         help
  47           This driver adds support for using the IXP46X as a PTP
  48           clock. This clock is only useful if your PTP programs are
  49           getting hardware time stamps on the PTP Ethernet packets
  50           using the SO_TIMESTAMPING API.
  51
  52           To compile this driver as a module, choose M here: the module
  53           will be called ptp_ixp46x.
  54
  55 comment "Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks."
  56         depends on PHYLIB=n || NETWORK_PHY_TIMESTAMPING=n
  57
  58 config DP83640_PHY
  59         tristate "Driver for the National Semiconductor DP83640 PHYTER"
  60         depends on NETWORK_PHY_TIMESTAMPING
  61         depends on PHYLIB
  62         select PTP_1588_CLOCK
  63         ---help---
  64           Supports the DP83640 PHYTER with IEEE 1588 features.
  65
  66           This driver adds support for using the DP83640 as a PTP
  67           clock. This clock is only useful if your PTP programs are
  68           getting hardware time stamps on the PTP Ethernet packets
  69           using the SO_TIMESTAMPING API.
  70
  71           In order for this to work, your MAC driver must also
  72           implement the skb_tx_timestamp() function.
  73
  74 config PTP_1588_CLOCK_PCH
  75         tristate "Intel PCH EG20T as PTP clock"
  76         depends on X86 || COMPILE_TEST
  77         depends on HAS_IOMEM
  78         select PTP_1588_CLOCK
  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
  92 endmenu