forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
43 lines
1.6 KiB
43 lines
1.6 KiB
* Broadcom UniMAC MDIO bus controller |
|
|
|
Required properties: |
|
- compatible: should one from "brcm,genet-mdio-v1", "brcm,genet-mdio-v2", |
|
"brcm,genet-mdio-v3", "brcm,genet-mdio-v4", "brcm,genet-mdio-v5" or |
|
"brcm,unimac-mdio" |
|
- reg: address and length of the register set for the device, first one is the |
|
base register, and the second one is optional and for indirect accesses to |
|
larger than 16-bits MDIO transactions |
|
- reg-names: name(s) of the register must be "mdio" and optional "mdio_indir_rw" |
|
- #size-cells: must be 1 |
|
- #address-cells: must be 0 |
|
|
|
Optional properties: |
|
- interrupts: must be one if the interrupt is shared with the Ethernet MAC or |
|
Ethernet switch this MDIO block is integrated from, or must be two, if there |
|
are two separate interrupts, first one must be "mdio done" and second must be |
|
for "mdio error" |
|
- interrupt-names: must be "mdio_done_error" when there is a share interrupt fed |
|
to this hardware block, or must be "mdio_done" for the first interrupt and |
|
"mdio_error" for the second when there are separate interrupts |
|
- clocks: A reference to the clock supplying the MDIO bus controller |
|
- clock-frequency: the MDIO bus clock that must be output by the MDIO bus |
|
hardware, if absent, the default hardware values are used |
|
|
|
Child nodes of this MDIO bus controller node are standard Ethernet PHY device |
|
nodes as described in Documentation/devicetree/bindings/net/phy.txt |
|
|
|
Example: |
|
|
|
mdio@403c0 { |
|
compatible = "brcm,unimac-mdio"; |
|
reg = <0x403c0 0x8 0x40300 0x18>; |
|
reg-names = "mdio", "mdio_indir_rw"; |
|
#size-cells = <1>; |
|
#address-cells = <0>; |
|
|
|
... |
|
phy@0 { |
|
compatible = "ethernet-phy-ieee802.3-c22"; |
|
reg = <0>; |
|
}; |
|
};
|
|
|