[linux-2.6-block.git] / drivers / ptp / Kconfig

# SPDX-License-Identifier: GPL-2.0-only
#
# PTP clock support configuration
#

menu "PTP clock support"

config PTP_1588_CLOCK
	tristate "PTP clock support"
	depends on NET && POSIX_TIMERS
	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_DTE
	tristate "Broadcom DTE as PTP clock"
	depends on PTP_1588_CLOCK
	depends on NET && HAS_IOMEM
	depends on ARCH_BCM_MOBILE || (ARCH_BCM_IPROC && !(ARCH_BCM_NSP || ARCH_BCM_5301X)) || COMPILE_TEST
	default y
	help
	  This driver adds support for using the Digital timing engine
	  (DTE) in the Broadcom SoC's as a PTP clock.

	  The clock can be used in both wired and wireless networks
	  for PTP purposes.

	  To compile this driver as a module, choose M here: the module
	  will be called ptp_dte.

config PTP_1588_CLOCK_QORIQ
	tristate "Freescale QorIQ 1588 timer as PTP clock"
	depends on GIANFAR || FSL_DPAA_ETH || FSL_DPAA2_ETH || FSL_ENETC || FSL_ENETC_VF || COMPILE_TEST
	depends on PTP_1588_CLOCK
	default y
	help
	  This driver adds support for using the Freescale QorIQ 1588
	  timer 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-qoriq.

config PTP_1588_CLOCK_IXP46X
	tristate "Intel IXP46x as PTP clock"
	depends on IXP4XX_ETH
	depends on 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
	depends on 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
	imply 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.

config PTP_1588_CLOCK_KVM
	tristate "KVM virtual PTP clock"
	depends on PTP_1588_CLOCK
	depends on KVM_GUEST && X86
	default y
	help
	  This driver adds support for using kvm infrastructure as a PTP
	  clock. This clock is only useful if you are using KVM guests.

	  To compile this driver as a module, choose M here: the module
	  will be called ptp_kvm.

endmenu
Commit	Line	Data
ec8f24b7	1	# SPDX-License-Identifier: GPL-2.0-only
d94ba80e RC	2	#
	3	# PTP clock support configuration
	4	#
	5
	6	menu "PTP clock support"
	7
d94ba80e RC	8	config PTP_1588_CLOCK
d94ba80e RC	9	tristate "PTP clock support"
baa73d9e	10	depends on NET && POSIX_TIMERS
42a7ccef	11	select PPS
408eccce	12	select NET_PTP_CLASSIFY
d94ba80e RC	13	help
	14	The IEEE 1588 standard defines a method to precisely
	15	synchronize distributed clocks over Ethernet networks. The
	16	standard defines a Precision Time Protocol (PTP), which can
	17	be used to achieve synchronization within a few dozen
	18	microseconds. In addition, with the help of special hardware
	19	time stamping units, it can be possible to achieve
	20	synchronization to within a few hundred nanoseconds.
	21
	22	This driver adds support for PTP clocks as character
	23	devices. If you want to use a PTP clock, then you should
	24	also enable at least one clock driver as well.
	25
	26	To compile this driver as a module, choose M here: the module
	27	will be called ptp.
	28
8a56aa10 AP	29	config PTP_1588_CLOCK_DTE
	30	tristate "Broadcom DTE as PTP clock"
	31	depends on PTP_1588_CLOCK
	32	depends on NET && HAS_IOMEM
	33	depends on ARCH_BCM_MOBILE \|\| (ARCH_BCM_IPROC && !(ARCH_BCM_NSP \|\| ARCH_BCM_5301X)) \|\| COMPILE_TEST
	34	default y
	35	help
	36	This driver adds support for using the Digital timing engine
	37	(DTE) in the Broadcom SoC's as a PTP clock.
	38
	39	The clock can be used in both wired and wireless networks
	40	for PTP purposes.
	41
	42	To compile this driver as a module, choose M here: the module
	43	will be called ptp_dte.
	44
ceefc71d YL	45	config PTP_1588_CLOCK_QORIQ
ceefc71d YL	46	tristate "Freescale QorIQ 1588 timer as PTP clock"
8099d7ca	47	depends on GIANFAR \|\| FSL_DPAA_ETH \|\| FSL_DPAA2_ETH \|\| FSL_ENETC \|\| FSL_ENETC_VF \|\| COMPILE_TEST
d1cbfd77	48	depends on PTP_1588_CLOCK
a24006ed	49	default y
c78275f3	50	help
ceefc71d YL	51	This driver adds support for using the Freescale QorIQ 1588
	52	timer as a PTP clock. This clock is only useful if your PTP
	53	programs are getting hardware time stamps on the PTP Ethernet
	54	packets using the SO_TIMESTAMPING API.
c78275f3 RC	55
c78275f3 RC	56	To compile this driver as a module, choose M here: the module
19df7510	57	will be called ptp-qoriq.
c78275f3	58
32bd93e8 RC	59	config PTP_1588_CLOCK_IXP46X
32bd93e8 RC	60	tristate "Intel IXP46x as PTP clock"
32bd93e8	61	depends on IXP4XX_ETH
d1cbfd77	62	depends on PTP_1588_CLOCK
a24006ed	63	default y
32bd93e8 RC	64	help
	65	This driver adds support for using the IXP46X 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	To compile this driver as a module, choose M here: the module
	71	will be called ptp_ixp46x.
	72
cb646e2b	73	comment "Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks."
a24006ed	74	depends on PHYLIB=n \|\| NETWORK_PHY_TIMESTAMPING=n
cb646e2b RC	75
	76	config DP83640_PHY
	77	tristate "Driver for the National Semiconductor DP83640 PHYTER"
cb646e2b RC	78	depends on NETWORK_PHY_TIMESTAMPING
cb646e2b RC	79	depends on PHYLIB
d1cbfd77	80	depends on PTP_1588_CLOCK
cb646e2b RC	81	---help---
	82	Supports the DP83640 PHYTER with IEEE 1588 features.
	83
	84	This driver adds support for using the DP83640 as a PTP
	85	clock. This clock is only useful if your PTP programs are
	86	getting hardware time stamps on the PTP Ethernet packets
	87	using the SO_TIMESTAMPING API.
	88
	89	In order for this to work, your MAC driver must also
6b2aac42	90	implement the skb_tx_timestamp() function.
cb646e2b	91
863d08ec TS	92	config PTP_1588_CLOCK_PCH
863d08ec TS	93	tristate "Intel PCH EG20T as PTP clock"
bc56151d	94	depends on X86_32 \|\| COMPILE_TEST
1a466ae9	95	depends on HAS_IOMEM && NET
d1cbfd77	96	imply PTP_1588_CLOCK
863d08ec TS	97	help
863d08ec TS	98	This driver adds support for using the PCH EG20T as a PTP
358dfb6d TS	99	clock. The hardware supports time stamping of PTP packets
	100	when using the end-to-end delay (E2E) mechansim. The peer
	101	delay mechansim (P2P) is not supported.
	102
	103	This clock is only useful if your PTP programs are getting
	104	hardware time stamps on the PTP Ethernet packets using the
	105	SO_TIMESTAMPING API.
863d08ec TS	106
	107	To compile this driver as a module, choose M here: the module
	108	will be called ptp_pch.
	109
a0e136d4 MT	110	config PTP_1588_CLOCK_KVM
	111	tristate "KVM virtual PTP clock"
	112	depends on PTP_1588_CLOCK
	113	depends on KVM_GUEST && X86
	114	default y
	115	help
	116	This driver adds support for using kvm infrastructure as a PTP
	117	clock. This clock is only useful if you are using KVM guests.
	118
	119	To compile this driver as a module, choose M here: the module
	120	will be called ptp_kvm.
	121
d94ba80e	122	endmenu