Commit eb4afe30 authored by John Crispin's avatar John Crispin Committed by Greg Kroah-Hartman

staging: mt7621-eth: Document ralink/mediatek SoC ethernet binding

Add possible dt binding for mediatek gigabit switches.
Signed-off-by: default avatarJohn Crispin <blogic@openwrt.org>
Signed-off-by: default avatarFelix Fietkau <nbd@openwrt.org>
Signed-off-by: default avatarMichael Lee <igvtee@gmail.com>
Cc: devicetree@vger.kernel.org
Signed-off-by: default avatarNeilBrown <neil@brown.name>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 8b634a9c
Mediatek Gigabit Switch
=======================
The mediatek gigabit switch can be found on Mediatek SoCs.
Required properties:
- compatible: Should be "mediatek,mt7620-gsw", "mediatek,mt7621-gsw",
"mediatek,mt7623-gsw"
- reg: Address and length of the register set for the device
- interrupts: Should contain the gigabit switches interrupt
Additional required properties for ARM based SoCs:
- mediatek,reset-pin: phandle describing the reset GPIO
- clocks: the clocks used by the switch
- clock-names: the names of the clocks listed in the clocks property
these should be "trgpll", "esw", "gp2", "gp1"
- mt7530-supply: the phandle of the regulator used to power the switch
- mediatek,pctl-regmap: phandle to the port control regmap. this is used to
setup the drive current
Optional properties:
- interrupt-parent: Should be the phandle for the interrupt controller
that services interrupts for this device
Example:
gsw: switch@1b100000 {
compatible = "mediatek,mt7623-gsw";
reg = <0 0x1b110000 0 0x300000>;
interrupt-parent = <&pio>;
interrupts = <168 IRQ_TYPE_EDGE_RISING>;
clocks = <&apmixedsys CLK_APMIXED_TRGPLL>,
<&ethsys CLK_ETHSYS_ESW>,
<&ethsys CLK_ETHSYS_GP2>,
<&ethsys CLK_ETHSYS_GP1>;
clock-names = "trgpll", "esw", "gp2", "gp1";
mt7530-supply = <&mt6323_vpa_reg>;
mediatek,pctl-regmap = <&syscfg_pctl_a>;
mediatek,reset-pin = <&pio 15 0>;
status = "okay";
};
- verify devicetree documentation is consistent with code
Cc: NeilBrown <neil@brown.name>
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment