[PATCH net-next 1/3] dt-bindings: net: renesas,rzn1-gmac: Document RZ/N1 GMAC support

[Geert Uytterhoeven]

Hi Romain,

On Tue, Apr 2, 2024 at 2:36 PM Romain Gantois
<romain.gantois at bootlin.com> wrote:
> From: Clément Léger <clement.leger at bootlin.com>
>
> The RZ/N1 series of MPUs feature up to two Gigabit Ethernet controllers.
> These controllers are based on Synopsys IPs. They can be connected to
> RZ/N1 RGMII/RMII converters.
>
> Add a binding that describes these GMAC devices.
>
> Signed-off-by: "Clément Léger" <clement.leger at bootlin.com>
> [rgantois: commit log]
> Signed-off-by: Romain Gantois <romain.gantois at bootlin.com>

Thanks for your patch!

> --- /dev/null
> +++ b/Documentation/devicetree/bindings/net/renesas,rzn1-gmac.yaml

> +examples:
> +  - |
> +    #include <dt-bindings/clock/r9a06g032-sysctrl.h>
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +
> +    ethernet at 44000000 {
> +      compatible = "renesas,r9a06g032-gmac", "renesas,rzn1-gmac", "snps,dwmac";
> +      reg = <0x44000000 0x2000>;
> +      interrupt-parent = <&gic>;

There is no need to use interrupt-parent in examples.

> +      interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>,
> +                   <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>,
> +                   <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
> +      interrupt-names = "macirq", "eth_wake_irq", "eth_lpi";
> +      clock-names = "stmmaceth";
> +      clocks = <&sysctrl R9A06G032_HCLK_GMAC0>;

If you want this to be a real example, you should add power-domains.

> +      snps,multicast-filter-bins = <256>;
> +      snps,perfect-filter-entries = <128>;
> +      tx-fifo-depth = <2048>;
> +      rx-fifo-depth = <4096>;
> +      pcs-handle = <&mii_conv1>;
> +      phy-mode = "mii";
> +    };

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds