projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| d94ba80e RC |
1 | # |
| 2 | # PTP clock support configuration | |
| 3 | # | |
| 4 | ||
| 5 | menu "PTP clock support" | |
| 6 | ||
| d94ba80e RC |
7 | config PTP_1588_CLOCK |
| 8 | tristate "PTP clock support" | |
| 42a7ccef | 9 | select PPS |
| d94ba80e RC |
10 | help |
| 11 | The IEEE 1588 standard defines a method to precisely | |
| 12 | synchronize distributed clocks over Ethernet networks. The | |
| 13 | standard defines a Precision Time Protocol (PTP), which can | |
| 14 | be used to achieve synchronization within a few dozen | |
| 15 | microseconds. In addition, with the help of special hardware | |
| 16 | time stamping units, it can be possible to achieve | |
| 17 | synchronization to within a few hundred nanoseconds. | |
| 18 | ||
| 19 | This driver adds support for PTP clocks as character | |
| 20 | devices. If you want to use a PTP clock, then you should | |
| 21 | also enable at least one clock driver as well. | |
| 22 | ||
| 23 | To compile this driver as a module, choose M here: the module | |
| 24 | will be called ptp. | |
| 25 | ||
| c78275f3 RC |
26 | config PTP_1588_CLOCK_GIANFAR |
| 27 | tristate "Freescale eTSEC as PTP clock" | |
| c78275f3 | 28 | depends on GIANFAR |
| a24006ed BH |
29 | select PTP_1588_CLOCK |
| 30 | default y | |
| c78275f3 RC |
31 | help |
| 32 | This driver adds support for using the eTSEC as a PTP | |
| 33 | clock. This clock is only useful if your PTP programs are | |
| 34 | getting hardware time stamps on the PTP Ethernet packets | |
| 35 | using the SO_TIMESTAMPING API. | |
| 36 | ||
| 37 | To compile this driver as a module, choose M here: the module | |
| 38 | will be called gianfar_ptp. | |
| 39 | ||
| 32bd93e8 RC |
40 | config PTP_1588_CLOCK_IXP46X |
| 41 | tristate "Intel IXP46x as PTP clock" | |
| 32bd93e8 | 42 | depends on IXP4XX_ETH |
| a24006ed BH |
43 | select PTP_1588_CLOCK |
| 44 | default y | |
| 32bd93e8 RC |
45 | help |
| 46 | This driver adds support for using the IXP46X as a PTP | |
| 47 | clock. This clock is only useful if your PTP programs are | |
| 48 | getting hardware time stamps on the PTP Ethernet packets | |
| 49 | using the SO_TIMESTAMPING API. | |
| 50 | ||
| 51 | To compile this driver as a module, choose M here: the module | |
| 52 | will be called ptp_ixp46x. | |
| 53 | ||
| cb646e2b | 54 | comment "Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks." |
| a24006ed | 55 | depends on PHYLIB=n || NETWORK_PHY_TIMESTAMPING=n |
| cb646e2b RC |
56 | |
| 57 | config DP83640_PHY | |
| 58 | tristate "Driver for the National Semiconductor DP83640 PHYTER" | |
| cb646e2b RC |
59 | depends on NETWORK_PHY_TIMESTAMPING |
| 60 | depends on PHYLIB | |
| a24006ed | 61 | select PTP_1588_CLOCK |
| cb646e2b RC |
62 | ---help--- |
| 63 | Supports the DP83640 PHYTER with IEEE 1588 features. | |
| 64 | ||
| 65 | This driver adds support for using the DP83640 as a PTP | |
| 66 | clock. This clock is only useful if your PTP programs are | |
| 67 | getting hardware time stamps on the PTP Ethernet packets | |
| 68 | using the SO_TIMESTAMPING API. | |
| 69 | ||
| 70 | In order for this to work, your MAC driver must also | |
| 6b2aac42 | 71 | implement the skb_tx_timestamp() function. |
| cb646e2b | 72 | |
| 863d08ec TS |
73 | config PTP_1588_CLOCK_PCH |
| 74 | tristate "Intel PCH EG20T as PTP clock" | |
| a24006ed | 75 | select PTP_1588_CLOCK |
| 863d08ec TS |
76 | help |
| 77 | This driver adds support for using the PCH EG20T as a PTP | |
| 358dfb6d TS |
78 | clock. The hardware supports time stamping of PTP packets |
| 79 | when using the end-to-end delay (E2E) mechansim. The peer | |
| 80 | delay mechansim (P2P) is not supported. | |
| 81 | ||
| 82 | This clock is only useful if your PTP programs are getting | |
| 83 | hardware time stamps on the PTP Ethernet packets using the | |
| 84 | SO_TIMESTAMPING API. | |
| 863d08ec TS |
85 | |
| 86 | To compile this driver as a module, choose M here: the module | |
| 87 | will be called ptp_pch. | |
| 88 | ||
| d94ba80e | 89 | endmenu |