[v2] net: stmmac: add renesas,rzn1-gmac support

[PATCH net-next v2 6/6] ARM: dts: r9a06g032: describe GMAC1

Posted by Clément Léger 2 years, 10 months ago

RZ/N1 SoC includes two MAC named GMACx that are compatible with the
"snps,dwmac" driver. GMAC1 is connected directly to the MII converter
port 1. Since this MII converter is represented using a PCS driver, it
uses the renesas specific compatible driver which uses this PCS.

Signed-off-by: Clément Léger <clement.leger@bootlin.com>
---
 arch/arm/boot/dts/r9a06g032.dtsi | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/arch/arm/boot/dts/r9a06g032.dtsi b/arch/arm/boot/dts/r9a06g032.dtsi
index 41e19c0986ce..ba32e4429b01 100644
--- a/arch/arm/boot/dts/r9a06g032.dtsi
+++ b/arch/arm/boot/dts/r9a06g032.dtsi
@@ -304,6 +304,24 @@ dma1: dma-controller@40105000 {
 			data-width = <8>;
 		};
 
+		gmac1: ethernet@44000000 {
+			compatible = "renesas,r9a06g032-gmac", "renesas,rzn1-gmac", "snps,dwmac";
+			reg = <0x44000000 0x2000>;
+			interrupt-parent = <&gic>;
+			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>;
+			snps,multicast-filter-bins = <256>;
+			snps,perfect-filter-entries = <128>;
+			tx-fifo-depth = <2048>;
+			rx-fifo-depth = <4096>;
+			pcs-handle = <&mii_conv1>;
+			status = "disabled";
+		};
+
 		gmac2: ethernet@44002000 {
 			compatible = "renesas,r9a06g032-gmac", "renesas,rzn1-gmac", "snps,dwmac";
 			reg = <0x44002000 0x2000>;
-- 
2.39.0

Re: [PATCH net-next v2 6/6] ARM: dts: r9a06g032: describe GMAC1

Posted by Krzysztof Kozlowski 2 years, 10 months ago

On 08/02/2023 17:42, Clément Léger wrote:
> RZ/N1 SoC includes two MAC named GMACx that are compatible with the
> "snps,dwmac" driver. GMAC1 is connected directly to the MII converter
> port 1. Since this MII converter is represented using a PCS driver, it
> uses the renesas specific compatible driver which uses this PCS.
> 
> Signed-off-by: Clément Léger <clement.leger@bootlin.com>
> ---
>  arch/arm/boot/dts/r9a06g032.dtsi | 18 ++++++++++++++++++
>  1 file changed, 18 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/r9a06g032.dtsi b/arch/arm/boot/dts/r9a06g032.dtsi
> index 41e19c0986ce..ba32e4429b01 100644
> --- a/arch/arm/boot/dts/r9a06g032.dtsi
> +++ b/arch/arm/boot/dts/r9a06g032.dtsi
> @@ -304,6 +304,24 @@ dma1: dma-controller@40105000 {
>  			data-width = <8>;
>  		};
>  
> +		gmac1: ethernet@44000000 {
> +			compatible = "renesas,r9a06g032-gmac", "renesas,rzn1-gmac", "snps,dwmac";

Please test your DTS against the binding you send. If you did it, you
would see here that the binding does not work and needs fixes... The
difference between your DTS and your example should also warn you that
it's not correct.

Best regards,
Krzysztof