[PATCH net-next v3 1/2] dt-bindings: net: renesas,rzv2h-gbeth: Document Renesas RZ/G3L SoC
From: Biju <hidden>
Date: 2026-01-31 16:12:56
Also in:
linux-devicetree, linux-renesas-soc, lkml
Subsystem:
networking drivers, open firmware and flattened device tree bindings, renesas rz/v2h(p) dwmac gbeth glue layer driver, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Lad Prabhakar, Linus Torvalds
From: Biju Das <biju.das.jz@bp.renesas.com> Add device tree binding support for the Gigabit Ethernet (GBETH) IP on Renesas RZ/G3L SoC. This SoC uses different Synopsys DesignWare MAC version 5.30 compared to RZ/G3E. RZ/G3L requires an extra clock compared to RZ/G3E and has pps interrupts. Add a new compatible string "renesas,r9a08g046-gbeth" for RZ/G3L SoC and update the schema to handle hardware differences between SoC variants. Extend the base snps,dwmac.yaml schema to accommodate the PPS interrupts. Acked-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> --- v2->v3: * Fixed the typo ppt->ptp as pointed by netdev-ai[1]. * Keep the tag as the change is trivial [1]https://netdev-ai.bots.linux.dev/ai-review.html?id=495cbea4-c154-4027-9ecf-0167906492fe v1->v2: * Collected tag --- .../bindings/net/renesas,rzv2h-gbeth.yaml | 77 ++++++++++++++++--- .../devicetree/bindings/net/snps,dwmac.yaml | 3 + 2 files changed, 69 insertions(+), 11 deletions(-)
diff --git a/Documentation/devicetree/bindings/net/renesas,rzv2h-gbeth.yaml b/Documentation/devicetree/bindings/net/renesas,rzv2h-gbeth.yaml
index bd53ab300f50..fb60f745a1ff 100644
--- a/Documentation/devicetree/bindings/net/renesas,rzv2h-gbeth.yaml
+++ b/Documentation/devicetree/bindings/net/renesas,rzv2h-gbeth.yaml@@ -26,6 +26,9 @@ select: properties: compatible: oneOf: + - items: + - const: renesas,r9a08g046-gbeth # RZ/G3L + - const: snps,dwmac-5.30a - items: - enum: - renesas,r9a09g047-gbeth # RZ/G3E
@@ -47,13 +50,17 @@ properties: clocks: oneOf: - items: - - description: CSR clock - - description: AXI system clock + - description: CSR/Register access clock + - description: AXI system/Main clock - description: PTP clock - description: TX clock - description: RX clock - description: TX clock phase-shifted by 180 degrees - description: RX clock phase-shifted by 180 degrees + - description: RMII clock + + minItems: 7 + - items: - description: CSR clock - description: AXI system clock
@@ -69,6 +76,10 @@ properties: - const: rx - const: tx-180 - const: rx-180 + - const: rmii + + minItems: 7 + - items: - const: stmmaceth - const: pclk
@@ -88,6 +99,22 @@ properties: - const: tx-queue-1 - const: tx-queue-2 - const: tx-queue-3 + - items: + - const: macirq + - const: eth_wake_irq + - const: eth_lpi + - const: rx-queue-0 + - const: rx-queue-1 + - const: rx-queue-2 + - const: rx-queue-3 + - const: tx-queue-0 + - const: tx-queue-1 + - const: tx-queue-2 + - const: tx-queue-3 + - const: ptp-pps-0 + - const: ptp-pps-1 + - const: ptp-pps-2 + - const: ptp-pps-3 - items: - const: macirq - const: eth_wake_irq
@@ -135,6 +162,27 @@ required: allOf: - $ref: snps,dwmac.yaml# + - if: + properties: + compatible: + contains: + const: renesas,r9a08g046-gbeth + then: + properties: + clocks: + minItems: 8 + + clock-names: + minItems: 8 + + interrupts: + minItems: 15 + maxItems: 15 + + interrupt-names: + minItems: 15 + maxItems: 15 + - if: properties: compatible:
@@ -163,12 +211,26 @@ allOf: required: - reset-names else: + properties: + resets: + maxItems: 1 + + pcs-handle: false + + reset-names: false + + - if: + properties: + compatible: + contains: + const: renesas,rzv2h-gbeth + then: properties: clocks: - minItems: 7 + maxItems: 7 clock-names: - minItems: 7 + maxItems: 7 interrupts: minItems: 11
@@ -178,13 +240,6 @@ allOf: minItems: 11 maxItems: 11 - resets: - maxItems: 1 - - pcs-handle: false - - reset-names: false - unevaluatedProperties: false examples:
diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
index dd3c72e8363e..38bc34dc4f09 100644
--- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml@@ -75,6 +75,7 @@ properties: - qcom,sc8280xp-ethqos - qcom,sm8150-ethqos - renesas,r9a06g032-gmac + - renesas,r9a08g046-gbeth - renesas,r9a09g077-gbeth - renesas,rzn1-gmac - renesas,rzv2h-gbeth
@@ -142,6 +143,8 @@ properties: pattern: '^rx-queue-[0-7]$' - description: Per channel transmit completion interrupt pattern: '^tx-queue-[0-7]$' + - description: PPS interrupt + pattern: '^ptp-pps-[0-3]$' clocks: minItems: 1
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2.43.0