1# SPDX-License-Identifier: GPL-2.0-only 2# 3# PTP clock support configuration 4# 5 6menu "PTP clock support" 7 8config 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 29config 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 45config 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 59comment "Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks." 60 depends on PHYLIB=n || NETWORK_PHY_TIMESTAMPING=n 61 62config 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 select CRC32 68 help 69 Supports the DP83640 PHYTER with IEEE 1588 features. 70 71 This driver adds support for using the DP83640 as a PTP 72 clock. This clock is only useful if your PTP programs are 73 getting hardware time stamps on the PTP Ethernet packets 74 using the SO_TIMESTAMPING API. 75 76 In order for this to work, your MAC driver must also 77 implement the skb_tx_timestamp() function. 78 79config PTP_1588_CLOCK_INES 80 tristate "ZHAW InES PTP time stamping IP core" 81 depends on NETWORK_PHY_TIMESTAMPING 82 depends on HAS_IOMEM 83 depends on PHYLIB 84 depends on PTP_1588_CLOCK 85 help 86 This driver adds support for using the ZHAW InES 1588 IP 87 core. This clock is only useful if the MII bus of your MAC 88 is wired up to the core. 89 90config PTP_1588_CLOCK_PCH 91 tristate "Intel PCH EG20T as PTP clock" 92 depends on X86_32 || COMPILE_TEST 93 depends on HAS_IOMEM && PCI 94 depends on NET 95 imply PTP_1588_CLOCK 96 help 97 This driver adds support for using the PCH EG20T as a PTP 98 clock. The hardware supports time stamping of PTP packets 99 when using the end-to-end delay (E2E) mechanism. The peer 100 delay mechanism (P2P) is not supported. 101 102 This clock is only useful if your PTP programs are getting 103 hardware time stamps on the PTP Ethernet packets using the 104 SO_TIMESTAMPING API. 105 106 To compile this driver as a module, choose M here: the module 107 will be called ptp_pch. 108 109config PTP_1588_CLOCK_KVM 110 tristate "KVM virtual PTP clock" 111 depends on PTP_1588_CLOCK 112 depends on KVM_GUEST && X86 113 default y 114 help 115 This driver adds support for using kvm infrastructure as a PTP 116 clock. This clock is only useful if you are using KVM guests. 117 118 To compile this driver as a module, choose M here: the module 119 will be called ptp_kvm. 120 121config PTP_1588_CLOCK_IDT82P33 122 tristate "IDT 82P33xxx PTP clock" 123 depends on PTP_1588_CLOCK && I2C 124 default n 125 help 126 This driver adds support for using the IDT 82P33xxx as a PTP 127 clock. This clock is only useful if your time stamping MAC 128 is connected to the IDT chip. 129 130 To compile this driver as a module, choose M here: the module 131 will be called ptp_idt82p33. 132 133config PTP_1588_CLOCK_IDTCM 134 tristate "IDT CLOCKMATRIX as PTP clock" 135 depends on PTP_1588_CLOCK && I2C 136 default n 137 help 138 This driver adds support for using IDT CLOCKMATRIX(TM) as a PTP 139 clock. This clock is only useful if your time stamping MAC 140 is connected to the IDT chip. 141 142 To compile this driver as a module, choose M here: the module 143 will be called ptp_clockmatrix. 144 145config PTP_1588_CLOCK_VMW 146 tristate "VMware virtual PTP clock" 147 depends on ACPI && HYPERVISOR_GUEST && X86 148 depends on PTP_1588_CLOCK 149 help 150 This driver adds support for using VMware virtual precision 151 clock device as a PTP clock. This is only useful in virtual 152 machines running on VMware virtual infrastructure. 153 154 To compile this driver as a module, choose M here: the module 155 will be called ptp_vmw. 156 157endmenu 158