On Sat, 14 Oct 2017 01:41:12 +0900 <yamada.masahiro@xxxxxxxxxxxxx> wrote:
> 2017-10-13 9:35 GMT+09:00 Kunihiko Hayashi <hayashi.kunihiko@xxxxxxxxxxxxx>:
> > DT bindings for the AVE ethernet controller found on Socionext's
> > UniPhier platforms.
> >
> > Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@xxxxxxxxxxxxx>
> > Signed-off-by: Jassi Brar <jaswinder.singh@xxxxxxxxxx>
> > ---
> > .../bindings/net/socionext,uniphier-ave4.txt | 53 ++++++++++++++++++++++
> > 1 file changed, 53 insertions(+)
> > create mode 100644 Documentation/devicetree/bindings/net/socionext,uniphier-ave4.txt
> >
> > diff --git a/Documentation/devicetree/bindings/net/socionext,uniphier-ave4.txt b/Documentation/devicetree/bindings/net/socionext,uniphier-ave4.txt
> > new file mode 100644
> > index 0000000..25f4d92
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/net/socionext,uniphier-ave4.txt
> > @@ -0,0 +1,53 @@
> > +* Socionext AVE ethernet controller
> > +
> > +This describes the devicetree bindings for AVE ethernet controller
> > +implemented on Socionext UniPhier SoCs.
> > +
> > +Required properties:
> > + - compatible: Should be
> > + - "socionext,uniphier-pro4-ave4" : for Pro4 SoC
> > + - "socionext,uniphier-pxs2-ave4" : for PXs2 SoC
> > + - "socionext,uniphier-ld20-ave4" : for LD20 SoC
> > + - "socionext,uniphier-ld11-ave4" : for LD11 SoC
>
> Nit. LD11, LD20, in this order please.
I'll fix it. And also the SoC-dependent structures of the driver.
> > + - reg: Address where registers are mapped and size of region.
> > + - interrupts: Should contain the MAC interrupt.
> > + - phy-mode: See ethernet.txt in the same directory. Allow to choose
> > + "rgmii", "rmii", or "mii" according to the PHY.
> > + - pinctrl-names: List of assigned state names, see pinctrl
> > + binding documentation.
> > + - pinctrl-0: List of phandles to configure the GPIO pin,
>
>
> configure the GPIO pin?
>
> git-grep found this phrase.
>
>
> $ git grep "List of phandles to configure the GPIO"
> Documentation/devicetree/bindings/net/microchip,enc28j60.txt:-
> pinctrl-0: List of phandles to configure the GPIO pin used as
> interrupt line,
>
>
>
>
>
> > + see pinctrl binding documentation. Choose this appropriately
> > + according to phy-mode.
> > + - <&pinctrl_ether_rgmii> if phy-mode is "rgmii".
> > + - <&pinctrl_ether_rmii> if phy-mode is "rmii".
> > + - <&pinctrl_ether_mii> if phy-mode is "mii".
>
> pinctrl_ether_rgmii is just a label
> you just happened to write in your DT file.
>
> This information is totally unrelated to hardware specification.
> It is not stable, either.
Surely this driver is independent from the pinctrl.
I'll remove the descriptions about the pinctrl.
> > + - phy-handle: Should point to the external phy device.
> > + See ethernet.txt file in the same directory.
> > + - mdio subnode: Should be device tree subnode with the following required
> > + properties:
> > + - #address-cells: Must be <1>.
> > + - #size-cells: Must be <0>.
> > + - reg: phy ID number, usually a small integer.
>
>
> Are you talking about "Required subnode" in the "Required properties"?
It might be confused description. The subnode is separated from the properties.
> > +Optional properties:
> > + - local-mac-address: See ethernet.txt in the same directory.
In addition, I'll add "clocks" and "resets" according to another mail.
> > +
> > +Example:
> > +
> > + ether: ethernet@65000000 {
> > + compatible = "socionext,uniphier-ld20-ave4";
> > + reg = <0x65000000 0x8500>;
> > + interrupts = <0 66 4>;
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&pinctrl_ether_rgmii>;
> > + phy-mode = "rgmii";
> > + phy-handle = <ðphy>;
> > + local-mac-address = [00 00 00 00 00 00];
> > + mdio {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > + ethphy: ethphy@1 {
> > + reg = <1>;
> > + };
> > + };
> > + };
> > --
> > 2.7.4
> >
>
>
>
> --
> Best Regards
> Masahiro Yamada
---
Best Regards,
Kunihiko Hayashi
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