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| author | Philipp Zabel <p.zabel@pengutronix.de> | 2016-07-14 17:29:43 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-07-15 21:53:02 +0300 |
| commit | 77501a79cec40eac65c59ee7af3f786c703ead9c (patch) | |
| tree | fab4f2e3f889b732c7aaaa9c1d9cd72ca698d998 /Documentation | |
| parent | 2f43b9beeac8e063353452b4bcf8712f6c2de27b (diff) | |
| download | linux-77501a79cec40eac65c59ee7af3f786c703ead9c.tar.xz | |
net: phy: micrel: Add KSZ8041FTL fiber mode support
We can't detect the FXEN (fiber mode) bootstrap pin, so configure
it via a boolean device tree property "micrel,fiber-mode".
If it is enabled, auto-negotiation is not supported.
The only available modes are 100base-fx (full duplex and half duplex).
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/net/micrel.txt | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/net/micrel.txt b/Documentation/devicetree/bindings/net/micrel.txt index 87496a8c64ab..8d157f0295a5 100644 --- a/Documentation/devicetree/bindings/net/micrel.txt +++ b/Documentation/devicetree/bindings/net/micrel.txt @@ -35,3 +35,13 @@ Optional properties: supported clocks: - KSZ8021, KSZ8031, KSZ8081, KSZ8091: "rmii-ref": The RMII reference input clock. Used to determine the XI input clock. + + - micrel,fiber-mode: If present the PHY is configured to operate in fiber mode + + Some PHYs, such as the KSZ8041FTL variant, support fiber mode, enabled + by the FXEN boot strapping pin. It can't be determined from the PHY + registers whether the PHY is in fiber mode, so this boolean device tree + property can be used to describe it. + + In fiber mode, auto-negotiation is disabled and the PHY can only work in + 100base-fx (full and half duplex) modes. |