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Richard Cochrand94ba802011-04-22 12:03:08 +02001#
2# PTP clock support configuration
3#
4
5menu "PTP clock support"
6
Richard Cochrand94ba802011-04-22 12:03:08 +02007config PTP_1588_CLOCK
8 tristate "PTP clock support"
Ben Hutchings42a7cce2012-10-31 15:32:44 +00009 select PPS
Richard Cochrand94ba802011-04-22 12:03:08 +020010 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
Richard Cochranc78275f2011-04-22 12:03:54 +020026config PTP_1588_CLOCK_GIANFAR
27 tristate "Freescale eTSEC as PTP clock"
Richard Cochranc78275f2011-04-22 12:03:54 +020028 depends on GIANFAR
Ben Hutchingsa24006e2012-10-31 15:33:52 +000029 select PTP_1588_CLOCK
30 default y
Richard Cochranc78275f2011-04-22 12:03:54 +020031 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
Richard Cochran32bd93e2011-04-22 12:04:31 +020040config PTP_1588_CLOCK_IXP46X
41 tristate "Intel IXP46x as PTP clock"
Richard Cochran32bd93e2011-04-22 12:04:31 +020042 depends on IXP4XX_ETH
Ben Hutchingsa24006e2012-10-31 15:33:52 +000043 select PTP_1588_CLOCK
44 default y
Richard Cochran32bd93e2011-04-22 12:04:31 +020045 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
Richard Cochrancb646e22011-04-22 12:04:55 +020054comment "Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks."
Ben Hutchingsa24006e2012-10-31 15:33:52 +000055 depends on PHYLIB=n || NETWORK_PHY_TIMESTAMPING=n
Richard Cochrancb646e22011-04-22 12:04:55 +020056
57config DP83640_PHY
58 tristate "Driver for the National Semiconductor DP83640 PHYTER"
Richard Cochrancb646e22011-04-22 12:04:55 +020059 depends on NETWORK_PHY_TIMESTAMPING
60 depends on PHYLIB
Ben Hutchingsa24006e2012-10-31 15:33:52 +000061 select PTP_1588_CLOCK
Richard Cochrancb646e22011-04-22 12:04:55 +020062 ---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
Masanari Iida6b2aac42012-04-14 00:14:11 +090071 implement the skb_tx_timestamp() function.
Richard Cochrancb646e22011-04-22 12:04:55 +020072
Takahiro Shimizu863d08e2012-03-07 22:16:26 +000073config PTP_1588_CLOCK_PCH
74 tristate "Intel PCH EG20T as PTP clock"
Ben Hutchingsa24006e2012-10-31 15:33:52 +000075 select PTP_1588_CLOCK
Takahiro Shimizu863d08e2012-03-07 22:16:26 +000076 help
77 This driver adds support for using the PCH EG20T as a PTP
Takahiro Shimizu358dfb62012-04-20 18:50:34 +000078 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.
Takahiro Shimizu863d08e2012-03-07 22:16:26 +000085
86 To compile this driver as a module, choose M here: the module
87 will be called ptp_pch.
88
Richard Cochrand94ba802011-04-22 12:03:08 +020089endmenu