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| author | Daniel Golle <daniel@makrotopia.org> | 2025-11-03 15:19:58 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-11-07 01:16:17 +0300 |
| commit | bea0c17786116141aaf3980dc73758e3cc0d2748 (patch) | |
| tree | 062f29fa9e395af430bced6462e3399dd170fd7e /include/uapi/linux | |
| parent | 319fd7e9d446bb90469a82f876e78785f6da0bc5 (diff) | |
| download | linux-bea0c17786116141aaf3980dc73758e3cc0d2748.tar.xz | |
dt-bindings: net: dsa: lantiq,gswip: add support for MII delay properties
Add support for standard tx-internal-delay-ps and rx-internal-delay-ps
properties on port nodes to allow fine-tuning of RGMII clock delays.
The GSWIP switch hardware supports delay values in 500 picosecond
increments from 0 to 3500 picoseconds, with a post-reset default of 2000
picoseconds for both TX and RX delays. The driver currently sets the
delay to 0 in case the PHY is setup to carry out the delay by the
corresponding interface modes ("rgmii-id", "rgmii-rxid", "rgmii-txid").
This corresponds to the driver changes that allow adjusting MII delays
using Device Tree properties instead of relying solely on the PHY
interface mode.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/9e007d4f85c2c6d69e0b91f3663d99e0f6fc8eac.1762170107.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/uapi/linux')
0 files changed, 0 insertions, 0 deletions