| # 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 |
| 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_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. |
| |
| config PTP_1588_CLOCK_IXP46X |
| tristate "Intel IXP46x as PTP clock" |
| depends on IXP4XX_ETH |
| depends on PTP_1588_CLOCK |
| default y |
| help |
| This driver adds support for using the IXP46X 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_ixp46x. |
| |
| 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 |
| ---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_PCH |
| tristate "Intel PCH EG20T as PTP clock" |
| depends on X86_32 || COMPILE_TEST |
| depends on HAS_IOMEM && NET |
| imply 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 |
| 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_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. |
| |
| endmenu |