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[PATCH v2 3/5] arm64: dts: renesas: r9a09g077: Add GMAC nodes

Prabhakar posted 5 patches 3 months, 2 weeks ago
[PATCH v2 3/5] arm64: dts: renesas: r9a09g077: Add GMAC nodes
Posted by Prabhakar 3 months, 2 weeks ago 
From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Add Ethernet MAC (GMAC) device nodes to the RZ/T2H (R9A09G077) SoC DTSI.
The RZ/T2H integrates three GMAC interfaces based on the Synopsys
DesignWare MAC (version 5.20).

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
v1->v2 changes:
- No changes.
---
 arch/arm64/boot/dts/renesas/r9a09g077.dtsi | 445 +++++++++++++++++++++
 1 file changed, 445 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r9a09g077.dtsi b/arch/arm64/boot/dts/renesas/r9a09g077.dtsi
index 8a530c12a6dc..f5fa6ca06409 100644
--- a/arch/arm64/boot/dts/renesas/r9a09g077.dtsi
+++ b/arch/arm64/boot/dts/renesas/r9a09g077.dtsi
@@ -270,6 +270,444 @@ i2c2: i2c@81008000 {
 			status = "disabled";
 		};
 
+		gmac0: ethernet@80100000 {
+			compatible = "renesas,r9a09g077-gbeth", "snps,dwmac-5.20";
+			reg = <0 0x80100000 0 0x10000>;
+			interrupts = <GIC_SPI 498 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 500 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 499 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 509 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 510 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 511 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 512 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 513 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 514 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 515 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 516 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 501 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 502 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 503 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 504 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 505 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 506 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 507 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 508 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "macirq", "eth_wake_irq", "eth_lpi",
+					  "rx-queue-0", "rx-queue-1", "rx-queue-2",
+					  "rx-queue-3", "rx-queue-4", "rx-queue-5",
+					  "rx-queue-6", "rx-queue-7", "tx-queue-0",
+					  "tx-queue-1", "tx-queue-2", "tx-queue-3",
+					  "tx-queue-4", "tx-queue-5", "tx-queue-6",
+					  "tx-queue-7";
+			clocks = <&cpg CPG_MOD 400>,
+				 <&cpg CPG_CORE R9A09G077_CLK_PCLKH>,
+				 <&cpg CPG_CORE R9A09G077_ETCLKB>;
+			clock-names = "stmmaceth", "pclk", "tx";
+			resets = <&cpg 400>, <&cpg 401>;
+			reset-names = "stmmaceth", "ahb";
+			power-domains = <&cpg>;
+			snps,multicast-filter-bins = <256>;
+			snps,perfect-filter-entries = <32>;
+			rx-fifo-depth = <8192>;
+			tx-fifo-depth = <8192>;
+			snps,fixed-burst;
+			snps,no-pbl-x8;
+			snps,force_thresh_dma_mode;
+			snps,axi-config = <&stmmac_axi_setup>;
+			snps,mtl-rx-config = <&mtl_rx_setup0>;
+			snps,mtl-tx-config = <&mtl_tx_setup0>;
+			snps,txpbl = <16>;
+			snps,rxpbl = <16>;
+			status = "disabled";
+
+			mdio0: mdio {
+				compatible = "snps,dwmac-mdio";
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+
+			mtl_rx_setup0: rx-queues-config {
+				snps,rx-queues-to-use = <8>;
+				snps,rx-sched-sp;
+
+				queue0 {
+					snps,dcb-algorithm;
+					snps,priority = <0x1>;
+					snps,map-to-dma-channel = <0>;
+				};
+
+				queue1 {
+					snps,dcb-algorithm;
+					snps,priority = <0x2>;
+					snps,map-to-dma-channel = <1>;
+				};
+
+				queue2 {
+					snps,dcb-algorithm;
+					snps,priority = <0x4>;
+					snps,map-to-dma-channel = <2>;
+				};
+
+				queue3 {
+					snps,dcb-algorithm;
+					snps,priority = <0x8>;
+					snps,map-to-dma-channel = <3>;
+				};
+
+				queue4 {
+					snps,dcb-algorithm;
+					snps,priority = <0x10>;
+					snps,map-to-dma-channel = <4>;
+				};
+
+				queue5 {
+					snps,dcb-algorithm;
+					snps,priority = <0x20>;
+					snps,map-to-dma-channel = <5>;
+				};
+
+				queue6 {
+					snps,dcb-algorithm;
+					snps,priority = <0x40>;
+					snps,map-to-dma-channel = <6>;
+				};
+
+				queue7 {
+					snps,dcb-algorithm;
+					snps,priority = <0x80>;
+					snps,map-to-dma-channel = <7>;
+				};
+			};
+
+			mtl_tx_setup0: tx-queues-config {
+				snps,tx-queues-to-use = <8>;
+
+				queue0 {
+					snps,dcb-algorithm;
+				};
+
+				queue1 {
+					snps,dcb-algorithm;
+				};
+
+				queue2 {
+					snps,dcb-algorithm;
+				};
+
+				queue3 {
+					snps,dcb-algorithm;
+				};
+
+				queue4 {
+					snps,dcb-algorithm;
+				};
+
+				queue5 {
+					snps,dcb-algorithm;
+				};
+
+				queue6 {
+					snps,dcb-algorithm;
+				};
+
+				queue7 {
+					snps,dcb-algorithm;
+				};
+			};
+		};
+
+		gmac1: ethernet@92000000 {
+			compatible = "renesas,r9a09g077-gbeth", "snps,dwmac-5.20";
+			reg = <0 0x92000000 0 0x10000>;
+			interrupts = <GIC_SPI 517 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 519 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 518 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 528 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 529 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 530 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 531 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 532 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 533 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 534 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 535 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 520 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 521 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 522 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 523 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 524 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 525 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 526 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 527 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "macirq", "eth_wake_irq", "eth_lpi",
+					  "rx-queue-0", "rx-queue-1", "rx-queue-2",
+					  "rx-queue-3", "rx-queue-4", "rx-queue-5",
+					  "rx-queue-6", "rx-queue-7", "tx-queue-0",
+					  "tx-queue-1", "tx-queue-2", "tx-queue-3",
+					  "tx-queue-4", "tx-queue-5", "tx-queue-6",
+					  "tx-queue-7";
+			clocks = <&cpg CPG_MOD 416>,
+				 <&cpg CPG_CORE R9A09G077_CLK_PCLKAH>,
+				 <&cpg CPG_CORE R9A09G077_ETCLKB>;
+			clock-names = "stmmaceth", "pclk", "tx";
+			resets = <&cpg 416>, <&cpg 417>;
+			reset-names = "stmmaceth", "ahb";
+			power-domains = <&cpg>;
+			snps,multicast-filter-bins = <256>;
+			snps,perfect-filter-entries = <32>;
+			rx-fifo-depth = <8192>;
+			tx-fifo-depth = <8192>;
+			snps,fixed-burst;
+			snps,no-pbl-x8;
+			snps,force_thresh_dma_mode;
+			snps,axi-config = <&stmmac_axi_setup>;
+			snps,mtl-rx-config = <&mtl_rx_setup1>;
+			snps,mtl-tx-config = <&mtl_tx_setup1>;
+			snps,txpbl = <16>;
+			snps,rxpbl = <16>;
+			status = "disabled";
+
+			mdio1: mdio {
+				compatible = "snps,dwmac-mdio";
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+
+			mtl_rx_setup1: rx-queues-config {
+				snps,rx-queues-to-use = <8>;
+				snps,rx-sched-sp;
+
+				queue0 {
+					snps,dcb-algorithm;
+					snps,priority = <0x1>;
+					snps,map-to-dma-channel = <0>;
+				};
+
+				queue1 {
+					snps,dcb-algorithm;
+					snps,priority = <0x2>;
+					snps,map-to-dma-channel = <1>;
+				};
+
+				queue2 {
+					snps,dcb-algorithm;
+					snps,priority = <0x4>;
+					snps,map-to-dma-channel = <2>;
+				};
+
+				queue3 {
+					snps,dcb-algorithm;
+					snps,priority = <0x8>;
+					snps,map-to-dma-channel = <3>;
+				};
+
+				queue4 {
+					snps,dcb-algorithm;
+					snps,priority = <0x10>;
+					snps,map-to-dma-channel = <4>;
+				};
+
+				queue5 {
+					snps,dcb-algorithm;
+					snps,priority = <0x20>;
+					snps,map-to-dma-channel = <5>;
+				};
+
+				queue6 {
+					snps,dcb-algorithm;
+					snps,priority = <0x40>;
+					snps,map-to-dma-channel = <6>;
+				};
+
+				queue7 {
+					snps,dcb-algorithm;
+					snps,priority = <0x80>;
+					snps,map-to-dma-channel = <7>;
+				};
+			};
+
+			mtl_tx_setup1: tx-queues-config {
+				snps,tx-queues-to-use = <8>;
+
+				queue0 {
+					snps,dcb-algorithm;
+				};
+
+				queue1 {
+					snps,dcb-algorithm;
+				};
+
+				queue2 {
+					snps,dcb-algorithm;
+				};
+
+				queue3 {
+					snps,dcb-algorithm;
+				};
+
+				queue4 {
+					snps,dcb-algorithm;
+				};
+
+				queue5 {
+					snps,dcb-algorithm;
+				};
+
+				queue6 {
+					snps,dcb-algorithm;
+				};
+
+				queue7 {
+					snps,dcb-algorithm;
+				};
+			};
+		};
+
+		gmac2: ethernet@92010000 {
+			compatible = "renesas,r9a09g077-gbeth", "snps,dwmac-5.20";
+			reg = <0 0x92010000 0 0x10000>;
+			interrupts = <GIC_SPI 536 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 538 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 537 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 547 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 548 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 549 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 550 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 551 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 552 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 553 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 554 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 539 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 540 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 541 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 542 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 543 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 544 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 545 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 546 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "macirq", "eth_wake_irq", "eth_lpi",
+					  "rx-queue-0", "rx-queue-1", "rx-queue-2",
+					  "rx-queue-3", "rx-queue-4", "rx-queue-5",
+					  "rx-queue-6", "rx-queue-7", "tx-queue-0",
+					  "tx-queue-1", "tx-queue-2", "tx-queue-3",
+					  "tx-queue-4", "tx-queue-5", "tx-queue-6",
+					  "tx-queue-7";
+			clocks = <&cpg CPG_MOD 417>,
+				 <&cpg CPG_CORE R9A09G077_CLK_PCLKAH>,
+				 <&cpg CPG_CORE R9A09G077_ETCLKB>;
+			clock-names = "stmmaceth", "pclk", "tx";
+			resets = <&cpg 418>, <&cpg 419>;
+			reset-names = "stmmaceth", "ahb";
+			power-domains = <&cpg>;
+			snps,multicast-filter-bins = <256>;
+			snps,perfect-filter-entries = <32>;
+			rx-fifo-depth = <8192>;
+			tx-fifo-depth = <8192>;
+			snps,fixed-burst;
+			snps,no-pbl-x8;
+			snps,force_thresh_dma_mode;
+			snps,axi-config = <&stmmac_axi_setup>;
+			snps,mtl-rx-config = <&mtl_rx_setup2>;
+			snps,mtl-tx-config = <&mtl_tx_setup2>;
+			snps,txpbl = <16>;
+			snps,rxpbl = <16>;
+			status = "disabled";
+
+			mdio2: mdio {
+				compatible = "snps,dwmac-mdio";
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+
+			mtl_rx_setup2: rx-queues-config {
+				snps,rx-queues-to-use = <8>;
+				snps,rx-sched-sp;
+
+				queue0 {
+					snps,dcb-algorithm;
+					snps,priority = <0x1>;
+					snps,map-to-dma-channel = <0>;
+				};
+
+				queue1 {
+					snps,dcb-algorithm;
+					snps,priority = <0x2>;
+					snps,map-to-dma-channel = <1>;
+				};
+
+				queue2 {
+					snps,dcb-algorithm;
+					snps,priority = <0x4>;
+					snps,map-to-dma-channel = <2>;
+				};
+
+				queue3 {
+					snps,dcb-algorithm;
+					snps,priority = <0x8>;
+					snps,map-to-dma-channel = <3>;
+				};
+
+				queue4 {
+					snps,dcb-algorithm;
+					snps,priority = <0x10>;
+					snps,map-to-dma-channel = <4>;
+				};
+
+				queue5 {
+					snps,dcb-algorithm;
+					snps,priority = <0x20>;
+					snps,map-to-dma-channel = <5>;
+				};
+
+				queue6 {
+					snps,dcb-algorithm;
+					snps,priority = <0x40>;
+					snps,map-to-dma-channel = <6>;
+				};
+
+				queue7 {
+					snps,dcb-algorithm;
+					snps,priority = <0x80>;
+					snps,map-to-dma-channel = <7>;
+				};
+			};
+
+			mtl_tx_setup2: tx-queues-config {
+				snps,tx-queues-to-use = <8>;
+
+				queue0 {
+					snps,dcb-algorithm;
+				};
+
+				queue1 {
+					snps,dcb-algorithm;
+				};
+
+				queue2 {
+					snps,dcb-algorithm;
+				};
+
+				queue3 {
+					snps,dcb-algorithm;
+				};
+
+				queue4 {
+					snps,dcb-algorithm;
+				};
+
+				queue5 {
+					snps,dcb-algorithm;
+				};
+
+				queue6 {
+					snps,dcb-algorithm;
+				};
+
+				queue7 {
+					snps,dcb-algorithm;
+				};
+			};
+		};
+
 		ethss: ethss@80110000 {
 			compatible = "renesas,r9a09g077-miic";
 			reg =  <0 0x80110000 0 0x10000>;
@@ -495,6 +933,13 @@ sdhi1_vqmmc: vqmmc-regulator {
 		};
 	};
 
+	stmmac_axi_setup: stmmac-axi-config {
+		snps,lpi_en;
+		snps,wr_osr_lmt = <0xf>;
+		snps,rd_osr_lmt = <0xf>;
+		snps,blen = <16 8 4 0 0 0 0>;
+	};
+
 	timer {
 		compatible = "arm,armv8-timer";
 		interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_LOW>,
-- 
2.43.0
Re: [PATCH v2 3/5] arm64: dts: renesas: r9a09g077: Add GMAC nodes
Posted by Geert Uytterhoeven 3 months ago 
Hi Prabhakar,

On Tue, 28 Oct 2025 at 18:55, Prabhakar <prabhakar.csengg@gmail.com> wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
>
> Add Ethernet MAC (GMAC) device nodes to the RZ/T2H (R9A09G077) SoC DTSI.
> The RZ/T2H integrates three GMAC interfaces based on the Synopsys
> DesignWare MAC (version 5.20).
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Thanks for your patch!

> --- a/arch/arm64/boot/dts/renesas/r9a09g077.dtsi
> +++ b/arch/arm64/boot/dts/renesas/r9a09g077.dtsi

> @@ -495,6 +933,13 @@ sdhi1_vqmmc: vqmmc-regulator {
>                 };
>         };
>
> +       stmmac_axi_setup: stmmac-axi-config {

I will move this up while applying, to preserve sort order
(alphabetical).

> +               snps,lpi_en;
> +               snps,wr_osr_lmt = <0xf>;
> +               snps,rd_osr_lmt = <0xf>;
> +               snps,blen = <16 8 4 0 0 0 0>;
> +       };
> +
>         timer {
>                 compatible = "arm,armv8-timer";
>                 interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_LOW>,

The rest LGTM, so
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
i.e. will queue in renesas-devel for v6.19, with the above fixed.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@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
Re: [PATCH v2 3/5] arm64: dts: renesas: r9a09g077: Add GMAC nodes
Posted by Lad, Prabhakar 3 months ago 
Hi Geert,

Thank you for the review.

On Mon, Nov 10, 2025 at 2:53 PM Geert Uytterhoeven <geert@linux-m68k.org> wrote:
>
> Hi Prabhakar,
>
> On Tue, 28 Oct 2025 at 18:55, Prabhakar <prabhakar.csengg@gmail.com> wrote:
> > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> >
> > Add Ethernet MAC (GMAC) device nodes to the RZ/T2H (R9A09G077) SoC DTSI.
> > The RZ/T2H integrates three GMAC interfaces based on the Synopsys
> > DesignWare MAC (version 5.20).
> >
> > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
>
> Thanks for your patch!
>
> > --- a/arch/arm64/boot/dts/renesas/r9a09g077.dtsi
> > +++ b/arch/arm64/boot/dts/renesas/r9a09g077.dtsi
>
> > @@ -495,6 +933,13 @@ sdhi1_vqmmc: vqmmc-regulator {
> >                 };
> >         };
> >
> > +       stmmac_axi_setup: stmmac-axi-config {
>
> I will move this up while applying, to preserve sort order
> (alphabetical).
>
Oops. Thank you for taking care of it (and also for patch 4/5)

Cheers,
Prabhakar

> > +               snps,lpi_en;
> > +               snps,wr_osr_lmt = <0xf>;
> > +               snps,rd_osr_lmt = <0xf>;
> > +               snps,blen = <16 8 4 0 0 0 0>;
> > +       };
> > +
> >         timer {
> >                 compatible = "arm,armv8-timer";
> >                 interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_LOW>,
>
> The rest LGTM, so
> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
> i.e. will queue in renesas-devel for v6.19, with the above fixed.
>
> Gr{oetje,eeting}s,
>
>                         Geert
>
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@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

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