Hello. On 7/14/2016 1:18 PM, Philipp Zabel wrote:
We can't detect the FXEN (fiber mode) bootstrap pin, so configure it via a boolean device tree property "fxen". 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.za...@pengutronix.de> --- I didn't see a way to reliably detect whether the PHY is set to fiber mode in the datasheet [1], so this patch adds a device tree property to enforce fiber mode (disable auto-negotiation, set speed to 100). [1] http://ww1.microchip.com/downloads/en/DeviceDoc/ksz8041tl-ftl-mll.pdf --- .../devicetree/bindings/net/micrel-ksz8041.txt | 24 ++++++++++++++++ drivers/net/phy/micrel.c | 32 ++++++++++++++++++++-- include/linux/micrel_phy.h | 1 + 3 files changed, 55 insertions(+), 2 deletions(-) create mode 100644 Documentation/devicetree/bindings/net/micrel-ksz8041.txt diff --git a/Documentation/devicetree/bindings/net/micrel-ksz8041.txt b/Documentation/devicetree/bindings/net/micrel-ksz8041.txt new file mode 100644 index 0000000..4bce38d2 --- /dev/null +++ b/Documentation/devicetree/bindings/net/micrel-ksz8041.txt
I think your text should be added to micrel.txt instead.
@@ -0,0 +1,24 @@ +Micrel KSZ8041 Gigabit Ethernet PHY + +The KSZ8041FTL variant supports 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 a boolean device tree property can be +used to describe this. + +Optional properties: + - fxen : KSZ8041FTL is strapped to fiber mode. Auto-negotiation is disabled
It should be named micrel,fxen. [...] MBR, Sergei
