| # | |
| # PTP clock support configuration | |
| # | |
| menu "PTP clock support" | |
| config PTP_1588_CLOCK | |
| tristate "PTP clock support" | |
| depends on NET | |
| 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_GIANFAR | |
| tristate "Freescale eTSEC as PTP clock" | |
| depends on GIANFAR | |
| select PTP_1588_CLOCK | |
| default y | |
| help | |
| This driver adds support for using the eTSEC 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 gianfar_ptp. | |
| config PTP_1588_CLOCK_IXP46X | |
| tristate "Intel IXP46x as PTP clock" | |
| depends on IXP4XX_ETH | |
| select 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 | |
| select 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 | |
| select 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) mechansim. The peer | |
| delay mechansim (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. | |
| endmenu |