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| author | Oleksij Rempel <[email protected]> | 2025-06-10 09:13:54 +0000 |
|---|---|---|
| committer | Jakub Kicinski <[email protected]> | 2025-06-12 00:37:48 +0000 |
| commit | b2f96c3c96314ff3888ebb7d3126cf5f5e7c278b (patch) | |
| tree | 2420f1fd98e9161bac3e90e8f71ce87689057363 /drivers/fpga/tests/fpga-mgr-test.c | |
| parent | net: phy: micrel: Add RX error counter support for KSZ9477 switch-integrated ... (diff) | |
| download | kernel-b2f96c3c96314ff3888ebb7d3126cf5f5e7c278b.tar.gz kernel-b2f96c3c96314ff3888ebb7d3126cf5f5e7c278b.zip | |
net: phy: micrel: add cable test support for KSZ9477-class PHYs
Enable cable test support for KSZ9477-class PHYs by reusing the
existing KSZ9131 implementation.
This also adds support for 100Mbit-only PHYs like KSZ8563, which are
identified as KSZ9477. For these PHYs, only two wire pairs (A and B)
are active, so the cable test logic limits the pair_mask accordingly.
Support for KSZ8563 is untested but added based on its register
compatibility and PHY ID match.
Tested on KSZ9893 (Gigabit): open and short conditions were correctly
detected on all four pairs. Fault length reporting is functional and
varies by pair. For example:
- 2m cable: open faults reported ~1.2m (pairs B–D), 0.0m (pair A)
- No cable: all pairs report 0.0m fault length
Signed-off-by: Oleksij Rempel <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
Diffstat (limited to 'drivers/fpga/tests/fpga-mgr-test.c')
0 files changed, 0 insertions, 0 deletions