diff options
| author | Kamil Alkhouri <kamil.alkhouri@hs-offenburg.de> | 2020-11-03 08:10:57 +0100 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2020-11-05 14:04:49 -0800 |
| commit | ddd56dfe52c987d82964595902db0600970ef406 (patch) | |
| tree | c43cf4c971655fbd125b355d1d7140f43f098f46 /drivers/net/dsa/hirschmann/Kconfig | |
| parent | e4b27ebc780fa7fa951d81d241912755532568ff (diff) | |
| download | linux-ddd56dfe52c987d82964595902db0600970ef406.tar.bz2 | |
net: dsa: hellcreek: Add PTP clock support
The switch has internal PTP hardware clocks. Add support for it. There are three
clocks:
* Synchronized
* Syntonized
* Free running
Currently the synchronized clock is exported to user space which is a good
default for the beginning. The free running clock might be exported later
e.g. for implementing 802.1AS-2011/2020 Time Aware Bridges (TAB). The switch
also supports cross time stamping for that purpose.
The implementation adds support setting/getting the time as well as offset and
frequency adjustments. However, the clock only holds a partial timeofday
timestamp. This is why we track the seconds completely in software (see overflow
work and last_ts).
Furthermore, add the PTP multicast addresses into the FDB to forward that
packages only to the CPU port where they are processed by a PTP program.
Signed-off-by: Kamil Alkhouri <kamil.alkhouri@hs-offenburg.de>
Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/dsa/hirschmann/Kconfig')
| -rw-r--r-- | drivers/net/dsa/hirschmann/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/dsa/hirschmann/Kconfig b/drivers/net/dsa/hirschmann/Kconfig index 7d189cb936e3..222dd35e2c9d 100644 --- a/drivers/net/dsa/hirschmann/Kconfig +++ b/drivers/net/dsa/hirschmann/Kconfig @@ -3,6 +3,7 @@ config NET_DSA_HIRSCHMANN_HELLCREEK tristate "Hirschmann Hellcreek TSN Switch support" depends on HAS_IOMEM depends on NET_DSA + depends on PTP_1588_CLOCK select NET_DSA_TAG_HELLCREEK help This driver adds support for Hirschmann Hellcreek TSN switches. |