# SPDX-License-Identifier: GPL-2.0-only # # PTP clock support configuration # menu "PTP clock support" config PTP_1588_CLOCK tristate "PTP clock support" depends on NET && POSIX_TIMERS default ETHERNET select PPS select NET_PTP_CLASSIFY help The IEEE 1588 standard defines a method to precisely synchronize distributed clocks over Ethernet networks. The standard defines a Precision Time Protocol (PTP), which can be used to achieve synchronization within a few dozen microseconds. In addition, with the help of special hardware time stamping units, it can be possible to achieve synchronization to within a few hundred nanoseconds. This driver adds support for PTP clocks as character devices. If you want to use a PTP clock, then you should also enable at least one clock driver as well. To compile this driver as a module, choose M here: the module will be called ptp. config PTP_1588_CLOCK_OPTIONAL tristate default y if PTP_1588_CLOCK=n default PTP_1588_CLOCK help Drivers that can optionally use the PTP_1588_CLOCK framework should depend on this symbol to prevent them from being built into vmlinux while the PTP support itself is in a loadable module. If PTP support is disabled, this dependency will still be met, and drivers refer to dummy helpers. config PTP_1588_CLOCK_DTE tristate "Broadcom DTE as PTP clock" depends on PTP_1588_CLOCK depends on NET && HAS_IOMEM depends on ARCH_BCM_MOBILE || (ARCH_BCM_IPROC && !(ARCH_BCM_NSP || ARCH_BCM_5301X)) || COMPILE_TEST default y help This driver adds support for using the Digital timing engine (DTE) in the Broadcom SoC's as a PTP clock. The clock can be used in both wired and wireless networks for PTP purposes. To compile this driver as a module, choose M here: the module will be called ptp_dte. config PTP_1588_CLOCK_QORIQ tristate "Freescale QorIQ 1588 timer as PTP clock" depends on GIANFAR || FSL_DPAA_ETH || FSL_DPAA2_ETH || FSL_ENETC || FSL_ENETC_VF || COMPILE_TEST depends on PTP_1588_CLOCK default y help This driver adds support for using the Freescale QorIQ 1588 timer as a PTP clock. This clock is only useful if your PTP programs are getting hardware time stamps on the PTP Ethernet packets using the SO_TIMESTAMPING API. To compile this driver as a module, choose M here: the module will be called ptp-qoriq. comment "Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks." depends on PHYLIB=n || NETWORK_PHY_TIMESTAMPING=n config DP83640_PHY tristate "Driver for the National Semiconductor DP83640 PHYTER" depends on NETWORK_PHY_TIMESTAMPING depends on PHYLIB depends on PTP_1588_CLOCK select CRC32 help Supports the DP83640 PHYTER with IEEE 1588 features. This driver adds support for using the DP83640 as a PTP clock. This clock is only useful if your PTP programs are getting hardware time stamps on the PTP Ethernet packets using the SO_TIMESTAMPING API. In order for this to work, your MAC driver must also implement the skb_tx_timestamp() function. config PTP_1588_CLOCK_INES tristate "ZHAW InES PTP time stamping IP core" depends on NETWORK_PHY_TIMESTAMPING depends on HAS_IOMEM depends on PHYLIB depends on PTP_1588_CLOCK help This driver adds support for using the ZHAW InES 1588 IP core. This clock is only useful if the MII bus of your MAC is wired up to the core. config PTP_1588_CLOCK_PCH tristate "Intel PCH EG20T as PTP clock" depends on MIPS_GENERIC || X86_32 || COMPILE_TEST depends on HAS_IOMEM && PCI depends on NET depends on PTP_1588_CLOCK help This driver adds support for using the PCH EG20T as a PTP clock. The hardware supports time stamping of PTP packets when using the end-to-end delay (E2E) mechanism. The peer delay mechanism (P2P) is not supported. This clock is only useful if your PTP programs are getting hardware time stamps on the PTP Ethernet packets using the SO_TIMESTAMPING API. To compile this driver as a module, choose M here: the module will be called ptp_pch. config PTP_1588_CLOCK_KVM tristate "KVM virtual PTP clock" depends on PTP_1588_CLOCK depends on (KVM_GUEST && X86) || (HAVE_ARM_SMCCC_DISCOVERY && ARM_ARCH_TIMER) default y help This driver adds support for using kvm infrastructure as a PTP clock. This clock is only useful if you are using KVM guests. To compile this driver as a module, choose M here: the module will be called ptp_kvm. config PTP_1588_CLOCK_IDT82P33 tristate "IDT 82P33xxx PTP clock" depends on PTP_1588_CLOCK && I2C default n help This driver adds support for using the IDT 82P33xxx as a PTP clock. This clock is only useful if your time stamping MAC is connected to the IDT chip. To compile this driver as a module, choose M here: the module will be called ptp_idt82p33. config PTP_1588_CLOCK_IDTCM tristate "IDT CLOCKMATRIX as PTP clock" depends on PTP_1588_CLOCK && I2C default n help This driver adds support for using IDT CLOCKMATRIX(TM) as a PTP clock. This clock is only useful if your time stamping MAC is connected to the IDT chip. To compile this driver as a module, choose M here: the module will be called ptp_clockmatrix. config PTP_1588_CLOCK_MOCK tristate "Mock-up PTP clock" depends on PTP_1588_CLOCK help This driver offers a set of PTP clock manipulation operations over the system monotonic time. It can be used by virtual network device drivers to emulate PTP capabilities. To compile this driver as a module, choose M here: the module will be called ptp_mock. config PTP_1588_CLOCK_VMW tristate "VMware virtual PTP clock" depends on ACPI && HYPERVISOR_GUEST && X86 depends on PTP_1588_CLOCK help This driver adds support for using VMware virtual precision clock device as a PTP clock. This is only useful in virtual machines running on VMware virtual infrastructure. To compile this driver as a module, choose M here: the module will be called ptp_vmw. config PTP_1588_CLOCK_OCP tristate "OpenCompute TimeCard as PTP clock" depends on PTP_1588_CLOCK depends on HAS_IOMEM && PCI depends on I2C && MTD depends on SERIAL_8250 depends on !S390 depends on COMMON_CLK select NET_DEVLINK select CRC16 help This driver adds support for an OpenCompute time card. The OpenCompute time card is an atomic clock along with a GPS receiver that provides a Grandmaster clock source for a PTP enabled network. More information is available at http://www.timingcard.com/ config PTP_DFL_TOD tristate "FPGA DFL ToD Driver" depends on FPGA_DFL depends on PTP_1588_CLOCK help The DFL (Device Feature List) device driver for the Intel ToD (Time-of-Day) device in FPGA card. The ToD IP within the FPGA is exposed as PTP Hardware Clock (PHC) device to the Linux PTP stack to synchronize the system clock to its ToD information using phc2sys utility of the Linux PTP stack. To compile this driver as a module, choose M here: the module will be called ptp_dfl_tod. endmenu