[deliverable/linux.git] / drivers / ptp / Kconfig

#
# PTP clock support configuration
#

menu "PTP clock support"

comment "Enable Device Drivers -> PPS to see the PTP clock options."
	depends on PPS=n

config PTP_1588_CLOCK
	tristate "PTP clock support"
	depends on EXPERIMENTAL
	depends on PPS
	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 PTP_1588_CLOCK
	depends on GIANFAR
	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 PTP_1588_CLOCK
	depends on IXP4XX_ETH
	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 PTP_1588_CLOCK && (PHYLIB=n || NETWORK_PHY_TIMESTAMPING=n)

config DP83640_PHY
	tristate "Driver for the National Semiconductor DP83640 PHYTER"
	depends on PTP_1588_CLOCK
	depends on NETWORK_PHY_TIMESTAMPING
	depends on PHYLIB
	---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 PTP_1588_CLOCK
	depends on PCH_GBE
	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
Commit	Line	Data
d94ba80e RC	1	#
	2	# PTP clock support configuration
	3	#
	4
	5	menu "PTP clock support"
	6
	7	comment "Enable Device Drivers -> PPS to see the PTP clock options."
	8	depends on PPS=n
	9
	10	config PTP_1588_CLOCK
	11	tristate "PTP clock support"
	12	depends on EXPERIMENTAL
	13	depends on PPS
	14	help
	15	The IEEE 1588 standard defines a method to precisely
	16	synchronize distributed clocks over Ethernet networks. The
	17	standard defines a Precision Time Protocol (PTP), which can
	18	be used to achieve synchronization within a few dozen
	19	microseconds. In addition, with the help of special hardware
	20	time stamping units, it can be possible to achieve
	21	synchronization to within a few hundred nanoseconds.
	22
	23	This driver adds support for PTP clocks as character
	24	devices. If you want to use a PTP clock, then you should
	25	also enable at least one clock driver as well.
	26
	27	To compile this driver as a module, choose M here: the module
	28	will be called ptp.
	29
c78275f3 RC	30	config PTP_1588_CLOCK_GIANFAR
	31	tristate "Freescale eTSEC as PTP clock"
	32	depends on PTP_1588_CLOCK
	33	depends on GIANFAR
	34	help
	35	This driver adds support for using the eTSEC as a PTP
	36	clock. This clock is only useful if your PTP programs are
	37	getting hardware time stamps on the PTP Ethernet packets
	38	using the SO_TIMESTAMPING API.
	39
	40	To compile this driver as a module, choose M here: the module
	41	will be called gianfar_ptp.
	42
32bd93e8 RC	43	config PTP_1588_CLOCK_IXP46X
	44	tristate "Intel IXP46x as PTP clock"
	45	depends on PTP_1588_CLOCK
	46	depends on IXP4XX_ETH
	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
cb646e2b RC	56	comment "Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks."
	57	depends on PTP_1588_CLOCK && (PHYLIB=n \|\| NETWORK_PHY_TIMESTAMPING=n)
	58
	59	config DP83640_PHY
	60	tristate "Driver for the National Semiconductor DP83640 PHYTER"
	61	depends on PTP_1588_CLOCK
	62	depends on NETWORK_PHY_TIMESTAMPING
	63	depends on PHYLIB
	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
6b2aac42	73	implement the skb_tx_timestamp() function.
cb646e2b	74
863d08ec TS	75	config PTP_1588_CLOCK_PCH
	76	tristate "Intel PCH EG20T as PTP clock"
	77	depends on PTP_1588_CLOCK
	78	depends on PCH_GBE
	79	help
	80	This driver adds support for using the PCH EG20T as a PTP
358dfb6d TS	81	clock. The hardware supports time stamping of PTP packets
	82	when using the end-to-end delay (E2E) mechansim. The peer
	83	delay mechansim (P2P) is not supported.
	84
	85	This clock is only useful if your PTP programs are getting
	86	hardware time stamps on the PTP Ethernet packets using the
	87	SO_TIMESTAMPING API.
863d08ec TS	88
	89	To compile this driver as a module, choose M here: the module
	90	will be called ptp_pch.
	91
d94ba80e	92	endmenu