mirror of
https://github.com/torvalds/linux
synced 2024-10-20 02:09:15 +00:00
ddd56dfe52
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>
10 lines
295 B
Plaintext
10 lines
295 B
Plaintext
# SPDX-License-Identifier: GPL-2.0
|
|
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.
|