e8650a0823
Pull trivial updates from Jiri Kosina: "As usual, it's mostly typo fixes, redundant code elimination and some documentation updates." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (57 commits) edac, mips: don't change code that has been removed in edac/mips tree xtensa: Change mail addresses of Hannes Weiner and Oskar Schirmer lib: Change mail address of Oskar Schirmer net: Change mail address of Oskar Schirmer arm/m68k: Change mail address of Sebastian Hess i2c: Change mail address of Oskar Schirmer net: Fix tcp_build_and_update_options comment in struct tcp_sock atomic64_32.h: fix parameter naming mismatch Kconfig: replace "--- help ---" with "---help---" c2port: fix bogus Kconfig "default no" edac: Fix spelling errors. qla1280: Remove redundant NULL check before release_firmware() call remoteproc: remove redundant NULL check before release_firmware() qla2xxx: Remove redundant NULL check before release_firmware() call. aic94xx: Get rid of redundant NULL check before release_firmware() call tehuti: delete redundant NULL check before release_firmware() qlogic: get rid of a redundant test for NULL before call to release_firmware() bna: remove redundant NULL test before release_firmware() tg3: remove redundant NULL test before release_firmware() call typhoon: get rid of redundant conditional before all to release_firmware() ...
92 lines
3 KiB
Text
92 lines
3 KiB
Text
#
|
|
# 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
|