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| author |   Ansuel Smith <ansuelsmth@gmail.com> | 2021-10-14 00:39:12 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2021-10-15 11:06:37 +0100 |
| commit | 13ad5ccc093ff448b99ac7e138e91e78796adb48 (patch) | |
| tree | f74f9223f188cc47c9100b3c1be81ee8793bf75f /Documentation/devicetree/bindings/net/dsa | |
| parent | net: dsa: qca8k: rework rgmii delay logic and scan for cpu port 6 (diff) | |
| download | linux-dev-13ad5ccc093ff448b99ac7e138e91e78796adb48.tar.xz linux-dev-13ad5ccc093ff448b99ac7e138e91e78796adb48.zip | |
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>
Diffstat (limited to 'Documentation/devicetree/bindings/net/dsa')
| -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: |