Re: [PATCH net-next 2/3] dt-bindings: net: Add UltraRISC DP1000 GMAC
From: Conor Dooley <conor@kernel.org>
Date: 2026-09-01 17:47:52
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linux-arm-kernel, linux-devicetree, lkml
On Tue, Sep 01, 2026 at 09:27:31AM +0800, Jia Wang wrote:
The DP1000 integrates a Synopsys DesignWare GMAC from the 5.20 series with one MMIO register range, one clock and one interrupt. It also provides fixed TX and RX RGMII clock delays that cannot be disabled. Board connections must therefore not add either delay in PCB traces, making "rgmii-id" the only supported phy-mode. Signed-off-by: Jia Wang <wangjia@ultrarisc.com>
This seems fine, just squash in the other binding patch. Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
quoted hunk ↗ jump to hunk
--- .../bindings/net/ultrarisc,dp1000-gmac.yaml | 74 ++++++++++++++++++++++ MAINTAINERS | 5 ++ 2 files changed, 79 insertions(+)diff --git a/Documentation/devicetree/bindings/net/ultrarisc,dp1000-gmac.yaml b/Documentation/devicetree/bindings/net/ultrarisc,dp1000-gmac.yaml new file mode 100644 index 000000000000..13029302877b --- /dev/null +++ b/Documentation/devicetree/bindings/net/ultrarisc,dp1000-gmac.yaml@@ -0,0 +1,74 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/ultrarisc,dp1000-gmac.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: UltraRISC DP1000 DWMAC Ethernet controller + +maintainers: + - Jia Wang <wangjia@ultrarisc.com> + +description: + The DP1000 integrates a Synopsys DesignWare GMAC controller from the + 5.20 series. The SoC integration adds fixed RGMII TX and RX clock delays + which cannot be disabled. Consequently, a functional RGMII link requires + a PCB without TX or RX clock delays, represented by "rgmii-id". + +select: + properties: + compatible: + contains: + const: ultrarisc,dp1000-gmac + required: + - compatible + +properties: + compatible: + items: + - const: ultrarisc,dp1000-gmac + - const: snps,dwmac-5.20 + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + clock-names: + const: stmmaceth + + interrupts: + maxItems: 1 + + interrupt-names: + const: macirq + + phy-mode: + const: rgmii-id + +required: + - compatible + - reg + - clocks + - clock-names + - interrupts + - interrupt-names + - phy-mode + +allOf: + - $ref: snps,dwmac.yaml# + +unevaluatedProperties: false + +examples: + - | + ethernet@38000000 { + compatible = "ultrarisc,dp1000-gmac", "snps,dwmac-5.20"; + reg = <0x38000000 0x1000000>; + clocks = <&clk 0>; + clock-names = "stmmaceth"; + interrupts = <84>; + interrupt-names = "macirq"; + phy-mode = "rgmii-id"; + };diff --git a/MAINTAINERS b/MAINTAINERS index 3a19da74d00c..3b96ff0734e6 100644 --- a/MAINTAINERS +++ b/MAINTAINERS@@ -28004,6 +28004,11 @@ F: Documentation/devicetree/bindings/clock/ultrarisc,dp1000-clk.yaml F: drivers/clk/ultrarisc/* F: include/dt-bindings/clock/ultrarisc,dp1000-clk.h +ULTRARISC DP1000 DWMAC GLUE LAYER +M: Jia Wang <wangjia@ultrarisc.com> +S: Maintained +F: Documentation/devicetree/bindings/net/ultrarisc,dp1000-gmac.yaml + ULTRARISC DP1000 PINCTRL DRIVER M: Jia Wang <wangjia@ultrarisc.com> L: linux-gpio@vger.kernel.org-- 2.34.1
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