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         depends on NET
  10         select PPS
  11         select NET_PTP_CLASSIFY
  12         help
  13           The IEEE 1588 standard defines a method to precisely
  14           synchronize distributed clocks over Ethernet networks. The
  15           standard defines a Precision Time Protocol (PTP), which can
  16           be used to achieve synchronization within a few dozen
  17           microseconds. In addition, with the help of special hardware
  18           time stamping units, it can be possible to achieve
  19           synchronization to within a few hundred nanoseconds.
  20
  21           This driver adds support for PTP clocks as character
  22           devices. If you want to use a PTP clock, then you should
  23           also enable at least one clock driver as well.
  24
  25           To compile this driver as a module, choose M here: the module
  26           will be called ptp.
  27
  28 config PTP_1588_CLOCK_GIANFAR
  29         tristate "Freescale eTSEC as PTP clock"
  30         depends on GIANFAR
  31         select PTP_1588_CLOCK
  32         default y
  33         help
  34           This driver adds support for using the eTSEC as a PTP
  35           clock. This clock is only useful if your PTP programs are
  36           getting hardware time stamps on the PTP Ethernet packets
  37           using the SO_TIMESTAMPING API.
  38
  39           To compile this driver as a module, choose M here: the module
  40           will be called gianfar_ptp.
  41
  42 config PTP_1588_CLOCK_IXP46X
  43         tristate "Intel IXP46x as PTP clock"
  44         depends on IXP4XX_ETH
  45         select PTP_1588_CLOCK
  46         default y
  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
  56 comment "Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks."
  57         depends on PHYLIB=n || NETWORK_PHY_TIMESTAMPING=n
  58
  59 config DP83640_PHY
  60         tristate "Driver for the National Semiconductor DP83640 PHYTER"
  61         depends on NETWORK_PHY_TIMESTAMPING
  62         depends on PHYLIB
  63         select PTP_1588_CLOCK
  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
  75 config PTP_1588_CLOCK_PCH
  76         tristate "Intel PCH EG20T as PTP clock"
  77         depends on X86_32 || COMPILE_TEST
  78         depends on HAS_IOMEM && NET
  79         select PTP_1588_CLOCK
  80         help
  81           This driver adds support for using the PCH EG20T as a PTP
  82           clock. The hardware supports time stamping of PTP packets
  83           when using the end-to-end delay (E2E) mechansim. The peer
  84           delay mechansim (P2P) is not supported.
  85
  86           This clock is only useful if your PTP programs are getting
  87           hardware time stamps on the PTP Ethernet packets using the
  88           SO_TIMESTAMPING API.
  89
  90           To compile this driver as a module, choose M here: the module
  91           will be called ptp_pch.
  92
  93 endmenu