diff options
| author | Ansuel Smith <ansuelsmth@gmail.com> | 2021-10-14 00:39:12 +0200 |
|---|---|---|
| committer | Vladimir Oltean <vladimir.oltean@nxp.com> | 2022-05-04 15:24:48 +0200 |
| commit | e1e3ecac95603c99595c7d9f2a3b49db73b698a5 (patch) | |
| tree | 755497c1f2a463d27319a401f2c95cd23852385b /Documentation/devicetree/bindings/net | |
| parent | d751889610b22cc323263764e8a64a091632e757 (diff) | |
dt-bindings: net: dsa: qca8k: Document qca,sgmii-enable-pll
Document qca,sgmii-enable-pll binding used in the CPU nodes to
enable SGMII PLL on MAC config.
Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit 13ad5ccc093ff448b99ac7e138e91e78796adb48)
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Diffstat (limited to 'Documentation/devicetree/bindings/net')
| -rw-r--r-- | Documentation/devicetree/bindings/net/dsa/qca8k.txt | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/net/dsa/qca8k.txt b/Documentation/devicetree/bindings/net/dsa/qca8k.txt index aeb206556f54..05a8ddfb5483 100644 --- a/Documentation/devicetree/bindings/net/dsa/qca8k.txt +++ b/Documentation/devicetree/bindings/net/dsa/qca8k.txt @@ -45,6 +45,16 @@ A CPU port node has the following optional node: Mostly used in qca8327 with CPU port 0 set to sgmii. - qca,sgmii-txclk-falling-edge: Set the transmit clock phase to falling edge. +- qca,sgmii-enable-pll : For SGMII CPU port, explicitly enable PLL, TX and RX + chain along with Signal Detection. + This should NOT be enabled for qca8327. If enabled with + qca8327 the sgmii port won't correctly init and an err + is printed. + This can be required for qca8337 switch with revision 2. + A warning is displayed when used with revision greater + 2. + With CPU port set to sgmii and qca8337 it is advised + to set this unless a communication problem is observed. For QCA8K the 'fixed-link' sub-node supports only the following properties: |