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93ce16fd0a
Commit 656d8da9d2 (doc: Remove duplicated documentation directory) got
rid of most of Documentation/. But there's still an obviously useless
.gitignore left behind.
Also, there's a copy of the linux kernel's net/ethernet.txt binding
imported from v5.0, while the existing one in doc/ is from 4.0-rc1. So
replace the latter by the former, and making Documentation/ finally
empty.
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
66 lines
3 KiB
Text
66 lines
3 KiB
Text
The following properties are common to the Ethernet controllers:
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NOTE: All 'phy*' properties documented below are Ethernet specific. For the
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generic PHY 'phys' property, see
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Documentation/devicetree/bindings/phy/phy-bindings.txt.
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- local-mac-address: array of 6 bytes, specifies the MAC address that was
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assigned to the network device;
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- mac-address: array of 6 bytes, specifies the MAC address that was last used by
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the boot program; should be used in cases where the MAC address assigned to
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the device by the boot program is different from the "local-mac-address"
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property;
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- nvmem-cells: phandle, reference to an nvmem node for the MAC address;
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- nvmem-cell-names: string, should be "mac-address" if nvmem is to be used;
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- max-speed: number, specifies maximum speed in Mbit/s supported by the device;
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- max-frame-size: number, maximum transfer unit (IEEE defined MTU), rather than
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the maximum frame size (there's contradiction in the Devicetree
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Specification).
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- phy-mode: string, operation mode of the PHY interface. This is now a de-facto
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standard property; supported values are:
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* "internal"
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* "mii"
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* "gmii"
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* "sgmii"
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* "qsgmii"
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* "tbi"
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* "rev-mii"
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* "rmii"
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* "rgmii" (RX and TX delays are added by the MAC when required)
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* "rgmii-id" (RGMII with internal RX and TX delays provided by the PHY, the
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MAC should not add the RX or TX delays in this case)
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* "rgmii-rxid" (RGMII with internal RX delay provided by the PHY, the MAC
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should not add an RX delay in this case)
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* "rgmii-txid" (RGMII with internal TX delay provided by the PHY, the MAC
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should not add an TX delay in this case)
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* "rtbi"
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* "smii"
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* "xgmii"
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* "trgmii"
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* "2000base-x",
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* "2500base-x",
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* "rxaui"
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* "xaui"
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* "10gbase-kr" (10GBASE-KR, XFI, SFI)
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- phy-connection-type: the same as "phy-mode" property but described in the
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Devicetree Specification;
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- phy-handle: phandle, specifies a reference to a node representing a PHY
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device; this property is described in the Devicetree Specification and so
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preferred;
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- phy: the same as "phy-handle" property, not recommended for new bindings.
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- phy-device: the same as "phy-handle" property, not recommended for new
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bindings.
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- rx-fifo-depth: the size of the controller's receive fifo in bytes. This
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is used for components that can have configurable receive fifo sizes,
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and is useful for determining certain configuration settings such as
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flow control thresholds.
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- tx-fifo-depth: the size of the controller's transmit fifo in bytes. This
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is used for components that can have configurable fifo sizes.
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- managed: string, specifies the PHY management type. Supported values are:
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"auto", "in-band-status". "auto" is the default, it usess MDIO for
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management if fixed-link is not specified.
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Child nodes of the Ethernet controller are typically the individual PHY devices
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connected via the MDIO bus (sometimes the MDIO bus controller is separate).
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They are described in the phy.txt file in this same directory.
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For non-MDIO PHY management see fixed-link.txt.
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