Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / ptp / Kconfig

diff --git a/kernel/drivers/ptp/Kconfig b/kernel/drivers/ptp/Kconfig
new file mode 100644 (file)
index 0000000..ee3de34
--- /dev/null
+++ b/kernel/drivers/ptp/Kconfig
@@ -0,0 +1,93 @@
+#
+# PTP clock support configuration
+#
+
+menu "PTP clock support"
+
+config PTP_1588_CLOCK
+       tristate "PTP clock support"
+       depends on NET
+       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_GIANFAR
+       tristate "Freescale eTSEC as PTP clock"
+       depends on GIANFAR
+       select PTP_1588_CLOCK
+       default y
+       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 IXP4XX_ETH
+       select 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
+       select 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
+       select 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.
+
+endmenu