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1# SPDX-License-Identifier: GPL-2.0-only2#3# PTP clock support configuration4#5 6menu "PTP clock support"7 8config PTP_1588_CLOCK9 tristate "PTP clock support"10 depends on NET && POSIX_TIMERS11 default ETHERNET12 select PPS13 select NET_PTP_CLASSIFY14 help15 The IEEE 1588 standard defines a method to precisely16 synchronize distributed clocks over Ethernet networks. The17 standard defines a Precision Time Protocol (PTP), which can18 be used to achieve synchronization within a few dozen19 microseconds. In addition, with the help of special hardware20 time stamping units, it can be possible to achieve21 synchronization to within a few hundred nanoseconds.22 23 This driver adds support for PTP clocks as character24 devices. If you want to use a PTP clock, then you should25 also enable at least one clock driver as well.26 27 To compile this driver as a module, choose M here: the module28 will be called ptp.29 30config PTP_1588_CLOCK_OPTIONAL31 tristate32 default y if PTP_1588_CLOCK=n33 default PTP_1588_CLOCK34 help35 Drivers that can optionally use the PTP_1588_CLOCK framework36 should depend on this symbol to prevent them from being built37 into vmlinux while the PTP support itself is in a loadable38 module.39 If PTP support is disabled, this dependency will still be40 met, and drivers refer to dummy helpers.41 42config PTP_1588_CLOCK_DTE43 tristate "Broadcom DTE as PTP clock"44 depends on PTP_1588_CLOCK45 depends on NET && HAS_IOMEM46 depends on ARCH_BCM_MOBILE || (ARCH_BCM_IPROC && !(ARCH_BCM_NSP || ARCH_BCM_5301X)) || COMPILE_TEST47 default y48 help49 This driver adds support for using the Digital timing engine50 (DTE) in the Broadcom SoC's as a PTP clock.51 52 The clock can be used in both wired and wireless networks53 for PTP purposes.54 55 To compile this driver as a module, choose M here: the module56 will be called ptp_dte.57 58config PTP_1588_CLOCK_QORIQ59 tristate "Freescale QorIQ 1588 timer as PTP clock"60 depends on GIANFAR || FSL_DPAA_ETH || FSL_DPAA2_ETH || FSL_ENETC || FSL_ENETC_VF || COMPILE_TEST61 depends on PTP_1588_CLOCK62 default y63 help64 This driver adds support for using the Freescale QorIQ 158865 timer as a PTP clock. This clock is only useful if your PTP66 programs are getting hardware time stamps on the PTP Ethernet67 packets using the SO_TIMESTAMPING API.68 69 To compile this driver as a module, choose M here: the module70 will be called ptp-qoriq.71 72comment "Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks."73 depends on PHYLIB=n || NETWORK_PHY_TIMESTAMPING=n74 75config DP83640_PHY76 tristate "Driver for the National Semiconductor DP83640 PHYTER"77 depends on NETWORK_PHY_TIMESTAMPING78 depends on PHYLIB79 depends on PTP_1588_CLOCK80 select CRC3281 help82 Supports the DP83640 PHYTER with IEEE 1588 features.83 84 This driver adds support for using the DP83640 as a PTP85 clock. This clock is only useful if your PTP programs are86 getting hardware time stamps on the PTP Ethernet packets87 using the SO_TIMESTAMPING API.88 89 In order for this to work, your MAC driver must also90 implement the skb_tx_timestamp() function.91 92config PTP_1588_CLOCK_INES93 tristate "ZHAW InES PTP time stamping IP core"94 depends on NETWORK_PHY_TIMESTAMPING95 depends on HAS_IOMEM96 depends on PHYLIB97 depends on PTP_1588_CLOCK98 help99 This driver adds support for using the ZHAW InES 1588 IP100 core. This clock is only useful if the MII bus of your MAC101 is wired up to the core.102 103config PTP_1588_CLOCK_PCH104 tristate "Intel PCH EG20T as PTP clock"105 depends on MIPS_GENERIC || X86_32 || COMPILE_TEST106 depends on HAS_IOMEM && PCI107 depends on NET108 depends on PTP_1588_CLOCK109 help110 This driver adds support for using the PCH EG20T as a PTP111 clock. The hardware supports time stamping of PTP packets112 when using the end-to-end delay (E2E) mechanism. The peer113 delay mechanism (P2P) is not supported.114 115 This clock is only useful if your PTP programs are getting116 hardware time stamps on the PTP Ethernet packets using the117 SO_TIMESTAMPING API.118 119 To compile this driver as a module, choose M here: the module120 will be called ptp_pch.121 122config PTP_1588_CLOCK_KVM123 tristate "KVM virtual PTP clock"124 depends on PTP_1588_CLOCK125 depends on (KVM_GUEST && X86) || (HAVE_ARM_SMCCC_DISCOVERY && ARM_ARCH_TIMER)126 default y127 help128 This driver adds support for using kvm infrastructure as a PTP129 clock. This clock is only useful if you are using KVM guests.130 131 To compile this driver as a module, choose M here: the module132 will be called ptp_kvm.133 134config PTP_1588_CLOCK_IDT82P33135 tristate "IDT 82P33xxx PTP clock"136 depends on PTP_1588_CLOCK && I2C137 default n138 help139 This driver adds support for using the IDT 82P33xxx as a PTP140 clock. This clock is only useful if your time stamping MAC141 is connected to the IDT chip.142 143 To compile this driver as a module, choose M here: the module144 will be called ptp_idt82p33.145 146config PTP_1588_CLOCK_IDTCM147 tristate "IDT CLOCKMATRIX as PTP clock"148 depends on PTP_1588_CLOCK && I2C149 default n150 help151 This driver adds support for using IDT CLOCKMATRIX(TM) as a PTP152 clock. This clock is only useful if your time stamping MAC153 is connected to the IDT chip.154 155 To compile this driver as a module, choose M here: the module156 will be called ptp_clockmatrix.157 158config PTP_1588_CLOCK_FC3W159 tristate "RENESAS FemtoClock3 Wireless as PTP clock"160 depends on PTP_1588_CLOCK && I2C161 default n162 help163 This driver adds support for using Renesas FemtoClock3 Wireless164 as a PTP clock. This clock is only useful if your time stamping165 MAC is connected to the RENESAS chip.166 167 To compile this driver as a module, choose M here: the module168 will be called ptp_fc3.169 170config PTP_1588_CLOCK_MOCK171 tristate "Mock-up PTP clock"172 depends on PTP_1588_CLOCK173 help174 This driver offers a set of PTP clock manipulation operations over175 the system monotonic time. It can be used by virtual network device176 drivers to emulate PTP capabilities.177 178 To compile this driver as a module, choose M here: the module179 will be called ptp_mock.180 181config PTP_1588_CLOCK_VMW182 tristate "VMware virtual PTP clock"183 depends on ACPI && HYPERVISOR_GUEST && X86184 depends on PTP_1588_CLOCK185 help186 This driver adds support for using VMware virtual precision187 clock device as a PTP clock. This is only useful in virtual188 machines running on VMware virtual infrastructure.189 190 To compile this driver as a module, choose M here: the module191 will be called ptp_vmw.192 193config PTP_1588_CLOCK_OCP194 tristate "OpenCompute TimeCard as PTP clock"195 depends on PTP_1588_CLOCK196 depends on HAS_IOMEM && PCI197 depends on I2C && MTD198 depends on SERIAL_8250199 depends on !S390200 depends on COMMON_CLK201 select NET_DEVLINK202 select CRC16203 select DPLL204 help205 This driver adds support for an OpenCompute time card.206 207 The OpenCompute time card is an atomic clock along with208 a GPS receiver that provides a Grandmaster clock source209 for a PTP enabled network.210 211 More information is available at http://www.timingcard.com/212 213config PTP_DFL_TOD214 tristate "FPGA DFL ToD Driver"215 depends on FPGA_DFL216 depends on PTP_1588_CLOCK217 help218 The DFL (Device Feature List) device driver for the Intel ToD219 (Time-of-Day) device in FPGA card. The ToD IP within the FPGA220 is exposed as PTP Hardware Clock (PHC) device to the Linux PTP221 stack to synchronize the system clock to its ToD information222 using phc2sys utility of the Linux PTP stack.223 224 To compile this driver as a module, choose M here: the module225 will be called ptp_dfl_tod.226 227endmenu228