| 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 | default ETHERNET |
| 12 | select PPS |
| 13 | select NET_PTP_CLASSIFY |
| 14 | help |
| 15 | The IEEE 1588 standard defines a method to precisely |
| 16 | synchronize distributed clocks over Ethernet networks. The |
| 17 | standard defines a Precision Time Protocol (PTP), which can |
| 18 | be used to achieve synchronization within a few dozen |
| 19 | microseconds. In addition, with the help of special hardware |
| 20 | time stamping units, it can be possible to achieve |
| 21 | synchronization to within a few hundred nanoseconds. |
| 22 | |
| 23 | This driver adds support for PTP clocks as character |
| 24 | devices. If you want to use a PTP clock, then you should |
| 25 | also enable at least one clock driver as well. |
| 26 | |
| 27 | To compile this driver as a module, choose M here: the module |
| 28 | will be called ptp. |
| 29 | |
| 30 | config PTP_1588_CLOCK_OPTIONAL |
| 31 | tristate |
| 32 | default y if PTP_1588_CLOCK=n |
| 33 | default PTP_1588_CLOCK |
| 34 | help |
| 35 | Drivers that can optionally use the PTP_1588_CLOCK framework |
| 36 | should depend on this symbol to prevent them from being built |
| 37 | into vmlinux while the PTP support itself is in a loadable |
| 38 | module. |
| 39 | If PTP support is disabled, this dependency will still be |
| 40 | met, and drivers refer to dummy helpers. |
| 41 | |
| 42 | config PTP_1588_CLOCK_DTE |
| 43 | tristate "Broadcom DTE as PTP clock" |
| 44 | depends on PTP_1588_CLOCK |
| 45 | depends on NET && HAS_IOMEM |
| 46 | depends on ARCH_BCM_MOBILE || (ARCH_BCM_IPROC && !(ARCH_BCM_NSP || ARCH_BCM_5301X)) || COMPILE_TEST |
| 47 | default y if ARCH_BCM_MOBILE || ARCH_BCM_IPROC |
| 48 | help |
| 49 | This driver adds support for using the Digital timing engine |
| 50 | (DTE) in the Broadcom SoC's as a PTP clock. |
| 51 | |
| 52 | The clock can be used in both wired and wireless networks |
| 53 | for PTP purposes. |
| 54 | |
| 55 | To compile this driver as a module, choose M here: the module |
| 56 | will be called ptp_dte. |
| 57 | |
| 58 | config PTP_1588_CLOCK_QORIQ |
| 59 | tristate "Freescale QorIQ 1588 timer as PTP clock" |
| 60 | depends on GIANFAR || FSL_DPAA_ETH || FSL_DPAA2_ETH || FSL_ENETC || FSL_ENETC_VF || COMPILE_TEST |
| 61 | depends on PTP_1588_CLOCK |
| 62 | default y if GIANFAR || FSL_DPAA_ETH || FSL_DPAA2_ETH || FSL_ENETC || FSL_ENETC_VF |
| 63 | help |
| 64 | This driver adds support for using the Freescale QorIQ 1588 |
| 65 | timer as a PTP clock. This clock is only useful if your PTP |
| 66 | programs are getting hardware time stamps on the PTP Ethernet |
| 67 | packets using the SO_TIMESTAMPING API. |
| 68 | |
| 69 | To compile this driver as a module, choose M here: the module |
| 70 | will be called ptp_qoriq. |
| 71 | |
| 72 | comment "Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks." |
| 73 | depends on PHYLIB=n || NETWORK_PHY_TIMESTAMPING=n |
| 74 | |
| 75 | config DP83640_PHY |
| 76 | tristate "Driver for the National Semiconductor DP83640 PHYTER" |
| 77 | depends on NETWORK_PHY_TIMESTAMPING |
| 78 | depends on PHYLIB |
| 79 | depends on PTP_1588_CLOCK |
| 80 | select CRC32 |
| 81 | select PHY_PACKAGE |
| 82 | help |
| 83 | Supports the DP83640 PHYTER with IEEE 1588 features. |
| 84 | |
| 85 | This driver adds support for using the DP83640 as a PTP |
| 86 | clock. This clock is only useful if your PTP programs are |
| 87 | getting hardware time stamps on the PTP Ethernet packets |
| 88 | using the SO_TIMESTAMPING API. |
| 89 | |
| 90 | In order for this to work, your MAC driver must also |
| 91 | implement the skb_tx_timestamp() function. |
| 92 | |
| 93 | config PTP_1588_CLOCK_INES |
| 94 | tristate "ZHAW InES PTP time stamping IP core" |
| 95 | depends on NETWORK_PHY_TIMESTAMPING |
| 96 | depends on HAS_IOMEM |
| 97 | depends on PHYLIB |
| 98 | depends on PTP_1588_CLOCK |
| 99 | help |
| 100 | This driver adds support for using the ZHAW InES 1588 IP |
| 101 | core. This clock is only useful if the MII bus of your MAC |
| 102 | is wired up to the core. |
| 103 | |
| 104 | config PTP_1588_CLOCK_PCH |
| 105 | tristate "Intel PCH EG20T as PTP clock" |
| 106 | depends on MIPS_GENERIC || X86_32 || COMPILE_TEST |
| 107 | depends on HAS_IOMEM && PCI |
| 108 | depends on NET |
| 109 | depends on PTP_1588_CLOCK |
| 110 | help |
| 111 | This driver adds support for using the PCH EG20T as a PTP |
| 112 | clock. The hardware supports time stamping of PTP packets |
| 113 | when using the end-to-end delay (E2E) mechanism. The peer |
| 114 | delay mechanism (P2P) is not supported. |
| 115 | |
| 116 | This clock is only useful if your PTP programs are getting |
| 117 | hardware time stamps on the PTP Ethernet packets using the |
| 118 | SO_TIMESTAMPING API. |
| 119 | |
| 120 | To compile this driver as a module, choose M here: the module |
| 121 | will be called ptp_pch. |
| 122 | |
| 123 | config PTP_1588_CLOCK_KVM |
| 124 | tristate "KVM virtual PTP clock" |
| 125 | depends on PTP_1588_CLOCK |
| 126 | depends on (KVM_GUEST && X86) || (HAVE_ARM_SMCCC_DISCOVERY && ARM_ARCH_TIMER) |
| 127 | default y |
| 128 | help |
| 129 | This driver adds support for using kvm infrastructure as a PTP |
| 130 | clock. This clock is only useful if you are using KVM guests. |
| 131 | |
| 132 | To compile this driver as a module, choose M here: the module |
| 133 | will be called ptp_kvm. |
| 134 | |
| 135 | config PTP_1588_CLOCK_VMCLOCK |
| 136 | tristate "Virtual machine PTP clock" |
| 137 | depends on X86_TSC || ARM_ARCH_TIMER |
| 138 | depends on PTP_1588_CLOCK && ARCH_SUPPORTS_INT128 |
| 139 | default PTP_1588_CLOCK_KVM |
| 140 | help |
| 141 | This driver adds support for using a virtual precision clock |
| 142 | advertised by the hypervisor. This clock is only useful in virtual |
| 143 | machines where such a device is present. |
| 144 | |
| 145 | Unlike the KVM virtual PTP clock, the VMCLOCK device offers support |
| 146 | for reliable timekeeping even across live migration. So this driver |
| 147 | is enabled by default whenever the KVM PTP clock is. |
| 148 | |
| 149 | To compile this driver as a module, choose M here: the module |
| 150 | will be called ptp_vmclock. |
| 151 | |
| 152 | config PTP_1588_CLOCK_IDT82P33 |
| 153 | tristate "IDT 82P33xxx PTP clock" |
| 154 | depends on PTP_1588_CLOCK && I2C |
| 155 | default n |
| 156 | help |
| 157 | This driver adds support for using the IDT 82P33xxx as a PTP |
| 158 | clock. This clock is only useful if your time stamping MAC |
| 159 | is connected to the IDT chip. |
| 160 | |
| 161 | To compile this driver as a module, choose M here: the module |
| 162 | will be called ptp_idt82p33. |
| 163 | |
| 164 | config PTP_1588_CLOCK_IDTCM |
| 165 | tristate "IDT CLOCKMATRIX as PTP clock" |
| 166 | depends on PTP_1588_CLOCK && I2C |
| 167 | default n |
| 168 | help |
| 169 | This driver adds support for using IDT CLOCKMATRIX(TM) as a PTP |
| 170 | clock. This clock is only useful if your time stamping MAC |
| 171 | is connected to the IDT chip. |
| 172 | |
| 173 | To compile this driver as a module, choose M here: the module |
| 174 | will be called ptp_clockmatrix. |
| 175 | |
| 176 | config PTP_1588_CLOCK_FC3W |
| 177 | tristate "RENESAS FemtoClock3 Wireless as PTP clock" |
| 178 | depends on PTP_1588_CLOCK && I2C |
| 179 | default n |
| 180 | help |
| 181 | This driver adds support for using Renesas FemtoClock3 Wireless |
| 182 | as a PTP clock. This clock is only useful if your time stamping |
| 183 | MAC is connected to the RENESAS chip. |
| 184 | |
| 185 | To compile this driver as a module, choose M here: the module |
| 186 | will be called ptp_fc3. |
| 187 | |
| 188 | config PTP_1588_CLOCK_MOCK |
| 189 | tristate "Mock-up PTP clock" |
| 190 | depends on PTP_1588_CLOCK |
| 191 | help |
| 192 | This driver offers a set of PTP clock manipulation operations over |
| 193 | the system monotonic time. It can be used by virtual network device |
| 194 | drivers to emulate PTP capabilities. |
| 195 | |
| 196 | To compile this driver as a module, choose M here: the module |
| 197 | will be called ptp_mock. |
| 198 | |
| 199 | config PTP_1588_CLOCK_VMW |
| 200 | tristate "VMware virtual PTP clock" |
| 201 | depends on ACPI && HYPERVISOR_GUEST && X86 |
| 202 | depends on PTP_1588_CLOCK |
| 203 | help |
| 204 | This driver adds support for using VMware virtual precision |
| 205 | clock device as a PTP clock. This is only useful in virtual |
| 206 | machines running on VMware virtual infrastructure. |
| 207 | |
| 208 | To compile this driver as a module, choose M here: the module |
| 209 | will be called ptp_vmw. |
| 210 | |
| 211 | config PTP_1588_CLOCK_OCP |
| 212 | tristate "OpenCompute TimeCard as PTP clock" |
| 213 | depends on PTP_1588_CLOCK |
| 214 | depends on HAS_IOMEM && PCI |
| 215 | depends on I2C && MTD |
| 216 | depends on SERIAL_8250 |
| 217 | depends on !S390 |
| 218 | depends on COMMON_CLK |
| 219 | select NET_DEVLINK |
| 220 | select CRC16 |
| 221 | select DPLL |
| 222 | help |
| 223 | This driver adds support for an OpenCompute time card. |
| 224 | |
| 225 | The OpenCompute time card is an atomic clock along with |
| 226 | a GPS receiver that provides a Grandmaster clock source |
| 227 | for a PTP enabled network. |
| 228 | |
| 229 | More information is available at http://www.timingcard.com/ |
| 230 | |
| 231 | config PTP_DFL_TOD |
| 232 | tristate "FPGA DFL ToD Driver" |
| 233 | depends on FPGA_DFL |
| 234 | depends on PTP_1588_CLOCK |
| 235 | help |
| 236 | The DFL (Device Feature List) device driver for the Intel ToD |
| 237 | (Time-of-Day) device in FPGA card. The ToD IP within the FPGA |
| 238 | is exposed as PTP Hardware Clock (PHC) device to the Linux PTP |
| 239 | stack to synchronize the system clock to its ToD information |
| 240 | using phc2sys utility of the Linux PTP stack. |
| 241 | |
| 242 | To compile this driver as a module, choose M here: the module |
| 243 | will be called ptp_dfl_tod. |
| 244 | |
| 245 | config PTP_S390 |
| 246 | tristate "S390 PTP driver" |
| 247 | depends on PTP_1588_CLOCK |
| 248 | depends on S390 |
| 249 | help |
| 250 | This driver adds support for S390 time steering via the PtP |
| 251 | interface. This works by adding a in-kernel clock delta value, |
| 252 | which is always added to time values used in the kernel. The PtP |
| 253 | driver provides the raw clock value without the delta to |
| 254 | userspace. That way userspace programs like chrony could steer |
| 255 | the kernel clock. |
| 256 | |
| 257 | config PTP_NETC_V4_TIMER |
| 258 | tristate "NXP NETC V4 Timer PTP Driver" |
| 259 | depends on PTP_1588_CLOCK |
| 260 | depends on PCI_MSI |
| 261 | help |
| 262 | This driver adds support for using the NXP NETC V4 Timer as a PTP |
| 263 | clock, the clock is used by ENETC V4 or NETC V4 Switch for PTP time |
| 264 | synchronization. It also supports periodic output signal (e.g. PPS) |
| 265 | and external trigger timestamping. |
| 266 | |
| 267 | endmenu |