1 # SPDX-License-Identifier: GPL-2.0-only
3 # PTP clock support configuration
6 menu "PTP clock support"
9 tristate "PTP clock support"
10 depends on NET && POSIX_TIMERS
12 select NET_PTP_CLASSIFY
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.
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.
26 To compile this driver as a module, choose M here: the module
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
36 This driver adds support for using the Digital timing engine
37 (DTE) in the Broadcom SoC's as a PTP clock.
39 The clock can be used in both wired and wireless networks
42 To compile this driver as a module, choose M here: the module
43 will be called ptp_dte.
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
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.
56 To compile this driver as a module, choose M here: the module
57 will be called ptp-qoriq.
59 comment "Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks."
60 depends on PHYLIB=n || NETWORK_PHY_TIMESTAMPING=n
63 tristate "Driver for the National Semiconductor DP83640 PHYTER"
64 depends on NETWORK_PHY_TIMESTAMPING
66 depends on PTP_1588_CLOCK
69 Supports the DP83640 PHYTER with IEEE 1588 features.
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.
76 In order for this to work, your MAC driver must also
77 implement the skb_tx_timestamp() function.
79 config PTP_1588_CLOCK_INES
80 tristate "ZHAW InES PTP time stamping IP core"
81 depends on NETWORK_PHY_TIMESTAMPING
84 depends on PTP_1588_CLOCK
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.
90 config 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
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.
102 This clock is only useful if your PTP programs are getting
103 hardware time stamps on the PTP Ethernet packets using the
106 To compile this driver as a module, choose M here: the module
107 will be called ptp_pch.
109 config PTP_1588_CLOCK_KVM
110 tristate "KVM virtual PTP clock"
111 depends on PTP_1588_CLOCK
112 depends on KVM_GUEST && X86
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.
118 To compile this driver as a module, choose M here: the module
119 will be called ptp_kvm.
121 config PTP_1588_CLOCK_IDT82P33
122 tristate "IDT 82P33xxx PTP clock"
123 depends on PTP_1588_CLOCK && I2C
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.
130 To compile this driver as a module, choose M here: the module
131 will be called ptp_idt82p33.
133 config PTP_1588_CLOCK_IDTCM
134 tristate "IDT CLOCKMATRIX as PTP clock"
135 depends on PTP_1588_CLOCK && I2C
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.
142 To compile this driver as a module, choose M here: the module
143 will be called ptp_clockmatrix.
145 config PTP_1588_CLOCK_VMW
146 tristate "VMware virtual PTP clock"
147 depends on ACPI && HYPERVISOR_GUEST && X86
148 depends on PTP_1588_CLOCK
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.
154 To compile this driver as a module, choose M here: the module
155 will be called ptp_vmw.