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| author | Chunfeng Yun <chunfeng.yun@mediatek.com> | 2023-12-13 14:41:33 +0800 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2024-01-11 21:19:25 -0500 |
| commit | 69600f4156b0c36ef4d7fdc7b5e65be693ea25d1 (patch) | |
| tree | e7371c4fcee98f9f6b3981e9a6c00f12eac2fa45 /doc/device-tree-bindings | |
| parent | 2ee7a8ec6f1711abe9619fd8765edc16742be9de (diff) | |
| download | u-boot-69600f4156b0c36ef4d7fdc7b5e65be693ea25d1.tar.gz u-boot-69600f4156b0c36ef4d7fdc7b5e65be693ea25d1.tar.bz2 u-boot-69600f4156b0c36ef4d7fdc7b5e65be693ea25d1.zip | |
dt-bindings: phy-mtk-tphy: add properties for phy tuning
Add properties to improve eye diagram which sometimes need adjust
some parameters of u2phy;
Add a property to tune disconnect threshold;
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Diffstat (limited to 'doc/device-tree-bindings')
| -rw-r--r-- | doc/device-tree-bindings/phy/phy-mtk-tphy.txt | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/doc/device-tree-bindings/phy/phy-mtk-tphy.txt b/doc/device-tree-bindings/phy/phy-mtk-tphy.txt index 3042c39d09..300e236b5b 100644 --- a/doc/device-tree-bindings/phy/phy-mtk-tphy.txt +++ b/doc/device-tree-bindings/phy/phy-mtk-tphy.txt @@ -52,6 +52,15 @@ Optional properties (port (child) node): "da_ref": the reference clock of analog phy, used if the clocks of analog and digital phys are separated, otherwise uses "ref" clock only if needed. +- mediatek,eye-vrt : The selection of VRT reference voltage (U2 phy), + the value is [1, 7] +- mediatek,eye-term : The selection of HS_TX TERM reference voltage (U2 phy), + the value is [1, 7] +- mediatek,discth : The selection of disconnect threshold (U2 phy), + the value is [1, 15] +- mediatek,pre-emphasis : The level of pre-emphasis which used to widen + the eye opening and boost eye swing, + the value is [1, 3] Example: |