drivers/ptp/Kconfig

   1 # SPDX-License-Identifier: GPL-2.0-only
   2 #
   3 # PTP clock support configuration
   4 #
   5
   6 menu "PTP clock support"
   7
   8 config PTP_1588_CLOCK
   9         tristate "PTP clock support"
  10         depends on NET && POSIX_TIMERS
  11         select PPS
  12         select NET_PTP_CLASSIFY
  13         help
  14           The IEEE 1588 standard defines a method to precisely
  15           synchronize distributed clocks over Ethernet networks. The
  16           standard defines a Precision Time Protocol (PTP), which can
  17           be used to achieve synchronization within a few dozen
  18           microseconds. In addition, with the help of special hardware
  19           time stamping units, it can be possible to achieve
  20           synchronization to within a few hundred nanoseconds.
  21
  22           This driver adds support for PTP clocks as character
  23           devices. If you want to use a PTP clock, then you should
  24           also enable at least one clock driver as well.
  25
  26           To compile this driver as a module, choose M here: the module
  27           will be called ptp.
  28
  29 config PTP_1588_CLOCK_DTE
  30         tristate "Broadcom DTE as PTP clock"
  31         depends on PTP_1588_CLOCK
  32         depends on NET && HAS_IOMEM
  33         depends on ARCH_BCM_MOBILE || (ARCH_BCM_IPROC && !(ARCH_BCM_NSP || ARCH_BCM_5301X)) || COMPILE_TEST
  34         default y
  35         help
  36           This driver adds support for using the Digital timing engine
  37           (DTE) in the Broadcom SoC's as a PTP clock.
  38
  39           The clock can be used in both wired and wireless networks
  40           for PTP purposes.
  41
  42           To compile this driver as a module, choose M here: the module
  43           will be called ptp_dte.
  44
  45 config PTP_1588_CLOCK_QORIQ
  46         tristate "Freescale QorIQ 1588 timer as PTP clock"
  47         depends on GIANFAR || FSL_DPAA_ETH || FSL_DPAA2_ETH || FSL_ENETC || FSL_ENETC_VF || COMPILE_TEST
  48         depends on PTP_1588_CLOCK
  49         default y
  50         help
  51           This driver adds support for using the Freescale QorIQ 1588
  52           timer as a PTP clock. This clock is only useful if your PTP
  53           programs are getting hardware time stamps on the PTP Ethernet
  54           packets using the SO_TIMESTAMPING API.
  55
  56           To compile this driver as a module, choose M here: the module
  57           will be called ptp-qoriq.
  58
  59 comment "Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks."
  60         depends on PHYLIB=n || NETWORK_PHY_TIMESTAMPING=n
  61
  62 config DP83640_PHY
  63         tristate "Driver for the National Semiconductor DP83640 PHYTER"
  64         depends on NETWORK_PHY_TIMESTAMPING
  65         depends on PHYLIB
  66         depends on PTP_1588_CLOCK
  67         help
  68           Supports the DP83640 PHYTER with IEEE 1588 features.
  69
  70           This driver adds support for using the DP83640 as a PTP
  71           clock. This clock is only useful if your PTP programs are
  72           getting hardware time stamps on the PTP Ethernet packets
  73           using the SO_TIMESTAMPING API.
  74
  75           In order for this to work, your MAC driver must also
  76           implement the skb_tx_timestamp() function.
  77
  78 config PTP_1588_CLOCK_INES
  79         tristate "ZHAW InES PTP time stamping IP core"
  80         depends on NETWORK_PHY_TIMESTAMPING
  81         depends on PHYLIB
  82         depends on PTP_1588_CLOCK
  83         help
  84           This driver adds support for using the ZHAW InES 1588 IP
  85           core.  This clock is only useful if the MII bus of your MAC
  86           is wired up to the core.
  87
  88 config PTP_1588_CLOCK_PCH
  89         tristate "Intel PCH EG20T as PTP clock"
  90         depends on X86_32 || COMPILE_TEST
  91         depends on HAS_IOMEM && NET
  92         imply PTP_1588_CLOCK
  93         help
  94           This driver adds support for using the PCH EG20T as a PTP
  95           clock. The hardware supports time stamping of PTP packets
  96           when using the end-to-end delay (E2E) mechanism. The peer
  97           delay mechanism (P2P) is not supported.
  98
  99           This clock is only useful if your PTP programs are getting
 100           hardware time stamps on the PTP Ethernet packets using the
 101           SO_TIMESTAMPING API.
 102
 103           To compile this driver as a module, choose M here: the module
 104           will be called ptp_pch.
 105
 106 config PTP_1588_CLOCK_KVM
 107         tristate "KVM virtual PTP clock"
 108         depends on PTP_1588_CLOCK
 109         depends on KVM_GUEST && X86
 110         default y
 111         help
 112           This driver adds support for using kvm infrastructure as a PTP
 113           clock. This clock is only useful if you are using KVM guests.
 114
 115           To compile this driver as a module, choose M here: the module
 116           will be called ptp_kvm.
 117
 118 config PTP_1588_CLOCK_IDT82P33
 119         tristate "IDT 82P33xxx PTP clock"
 120         depends on PTP_1588_CLOCK && I2C
 121         default n
 122         help
 123           This driver adds support for using the IDT 82P33xxx as a PTP
 124           clock. This clock is only useful if your time stamping MAC
 125           is connected to the IDT chip.
 126
 127           To compile this driver as a module, choose M here: the module
 128           will be called ptp_idt82p33.
 129
 130 config PTP_1588_CLOCK_IDTCM
 131         tristate "IDT CLOCKMATRIX as PTP clock"
 132         depends on PTP_1588_CLOCK && I2C
 133         default n
 134         help
 135           This driver adds support for using IDT CLOCKMATRIX(TM) as a PTP
 136           clock. This clock is only useful if your time stamping MAC
 137           is connected to the IDT chip.
 138
 139           To compile this driver as a module, choose M here: the module
 140           will be called ptp_clockmatrix.
 141
 142 config PTP_1588_CLOCK_VMW
 143         tristate "VMware virtual PTP clock"
 144         depends on ACPI && HYPERVISOR_GUEST && X86
 145         depends on PTP_1588_CLOCK
 146         help
 147           This driver adds support for using VMware virtual precision
 148           clock device as a PTP clock. This is only useful in virtual
 149           machines running on VMware virtual infrastructure.
 150
 151           To compile this driver as a module, choose M here: the module
 152           will be called ptp_vmw.
 153
 154 endmenu