| Kyle Swenson | 8d8f654 | 2021-03-15 11:02:55 -0600 | [diff] [blame] | 1 | # |
| 2 | # PTP clock support configuration |
| 3 | # |
| 4 | |
| 5 | menu "PTP clock support" |
| 6 | |
| 7 | config PTP_1588_CLOCK |
| 8 | tristate "PTP clock support" |
| 9 | depends on NET |
| 10 | select PPS |
| 11 | select NET_PTP_CLASSIFY |
| 12 | help |
| 13 | The IEEE 1588 standard defines a method to precisely |
| 14 | synchronize distributed clocks over Ethernet networks. The |
| 15 | standard defines a Precision Time Protocol (PTP), which can |
| 16 | be used to achieve synchronization within a few dozen |
| 17 | microseconds. In addition, with the help of special hardware |
| 18 | time stamping units, it can be possible to achieve |
| 19 | synchronization to within a few hundred nanoseconds. |
| 20 | |
| 21 | This driver adds support for PTP clocks as character |
| 22 | devices. If you want to use a PTP clock, then you should |
| 23 | also enable at least one clock driver as well. |
| 24 | |
| 25 | To compile this driver as a module, choose M here: the module |
| 26 | will be called ptp. |
| 27 | |
| 28 | config PTP_1588_CLOCK_GIANFAR |
| 29 | tristate "Freescale eTSEC as PTP clock" |
| 30 | depends on GIANFAR |
| 31 | select PTP_1588_CLOCK |
| 32 | default y |
| 33 | help |
| 34 | This driver adds support for using the eTSEC as a PTP |
| 35 | clock. This clock is only useful if your PTP programs are |
| 36 | getting hardware time stamps on the PTP Ethernet packets |
| 37 | using the SO_TIMESTAMPING API. |
| 38 | |
| 39 | To compile this driver as a module, choose M here: the module |
| 40 | will be called gianfar_ptp. |
| 41 | |
| 42 | config PTP_1588_CLOCK_IXP46X |
| 43 | tristate "Intel IXP46x as PTP clock" |
| 44 | depends on IXP4XX_ETH |
| 45 | select PTP_1588_CLOCK |
| 46 | default y |
| 47 | help |
| 48 | This driver adds support for using the IXP46X as a PTP |
| 49 | clock. This clock is only useful if your PTP programs are |
| 50 | getting hardware time stamps on the PTP Ethernet packets |
| 51 | using the SO_TIMESTAMPING API. |
| 52 | |
| 53 | To compile this driver as a module, choose M here: the module |
| 54 | will be called ptp_ixp46x. |
| 55 | |
| 56 | comment "Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks." |
| 57 | depends on PHYLIB=n || NETWORK_PHY_TIMESTAMPING=n |
| 58 | |
| 59 | config DP83640_PHY |
| 60 | tristate "Driver for the National Semiconductor DP83640 PHYTER" |
| 61 | depends on NETWORK_PHY_TIMESTAMPING |
| 62 | depends on PHYLIB |
| 63 | select PTP_1588_CLOCK |
| 64 | ---help--- |
| 65 | Supports the DP83640 PHYTER with IEEE 1588 features. |
| 66 | |
| 67 | This driver adds support for using the DP83640 as a PTP |
| 68 | clock. This clock is only useful if your PTP programs are |
| 69 | getting hardware time stamps on the PTP Ethernet packets |
| 70 | using the SO_TIMESTAMPING API. |
| 71 | |
| 72 | In order for this to work, your MAC driver must also |
| 73 | implement the skb_tx_timestamp() function. |
| 74 | |
| 75 | config PTP_1588_CLOCK_PCH |
| 76 | tristate "Intel PCH EG20T as PTP clock" |
| 77 | depends on X86_32 || COMPILE_TEST |
| 78 | depends on HAS_IOMEM && NET |
| 79 | select PTP_1588_CLOCK |
| 80 | help |
| 81 | This driver adds support for using the PCH EG20T as a PTP |
| 82 | clock. The hardware supports time stamping of PTP packets |
| 83 | when using the end-to-end delay (E2E) mechansim. The peer |
| 84 | delay mechansim (P2P) is not supported. |
| 85 | |
| 86 | This clock is only useful if your PTP programs are getting |
| 87 | hardware time stamps on the PTP Ethernet packets using the |
| 88 | SO_TIMESTAMPING API. |
| 89 | |
| 90 | To compile this driver as a module, choose M here: the module |
| 91 | will be called ptp_pch. |
| 92 | |
| 93 | endmenu |