LXR linux/drivers/ptp/Kconfig

   1#
   2# PTP clock support configuration
   3#
   4
   5menu "PTP clock support"
   6
   7config 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
  28config 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
  42config 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
  56comment "Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks."
  57        depends on PHYLIB=n || NETWORK_PHY_TIMESTAMPING=n
  58
  59config 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
  75config 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
  93endmenu
  94