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Sun, 30 Aug 2026 11:20:54 -0700 (PDT) From: Prasanth Kumar Padarthi To: Joel Stanley , Andrew Jeffery Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Ryan Chen , Billy Tsai , Andrew Lunn , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org, Prasanth Kumar Padarthi , Krzysztof Kozlowski Subject: [PATCH v4 1/2] dt-bindings: arm: aspeed: Add ASRock Rack B650D4U Date: Sun, 30 Aug 2026 23:50:35 +0530 Message-ID: <20260830182036.284736-2-prasanth.padarthi10@gmail.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260830182036.284736-1-prasanth.padarthi10@gmail.com> References: <20260830182036.284736-1-prasanth.padarthi10@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add the compatible string for the ASRock Rack B650D4U BMC, which is an AST2600-based server motherboard. Acked-by: Krzysztof Kozlowski Signed-off-by: Prasanth Kumar Padarthi --- Documentation/devicetree/bindings/arm/aspeed/aspeed.yaml | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/arm/aspeed/aspeed.yaml b/Doc= umentation/devicetree/bindings/arm/aspeed/aspeed.yaml index 9ba195b8f22d..4c9e96801c1a 100644 --- a/Documentation/devicetree/bindings/arm/aspeed/aspeed.yaml +++ b/Documentation/devicetree/bindings/arm/aspeed/aspeed.yaml @@ -81,6 +81,7 @@ properties: - ampere,mtmitchell-bmc - aspeed,ast2600-evb - aspeed,ast2600-evb-a1 + - asrock,b650d4u-bmc - asus,ast2600-kommando-ipmi-card - asus,x4tf-bmc - facebook,anacapa-bmc --=20 2.47.3 From nobody Sat Sep 26 20:29:00 2026 Received: from mail-pg1-f175.google.com (mail-pg1-f175.google.com [209.85.215.175]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0E7E83BAD93 for ; Sun, 30 Aug 2026 18:21:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; 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Sun, 30 Aug 2026 11:21:03 -0700 (PDT) Received: from debian.prasanth ([103.177.82.239]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-3286f95a847sm21619480eec.17.2026.08.30.11.20.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 30 Aug 2026 11:21:02 -0700 (PDT) From: Prasanth Kumar Padarthi To: Joel Stanley , Andrew Jeffery Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Ryan Chen , Billy Tsai , Andrew Lunn , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org, Prasanth Kumar Padarthi Subject: [PATCH v4 2/2] ARM: dts: aspeed: Add ASRock Rack B650D4U BMC Date: Sun, 30 Aug 2026 23:50:36 +0530 Message-ID: <20260830182036.284736-3-prasanth.padarthi10@gmail.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260830182036.284736-1-prasanth.padarthi10@gmail.com> References: <20260830182036.284736-1-prasanth.padarthi10@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add the device tree for the ASRock Rack B650D4U BMC, which is based on the ASPEED AST2600 SoC. Describe the BMC memory, SPI NOR flash layout, UART console, and MAC0 connected to an RTL8211F Ethernet PHY. The MAC0 RGMII RX delay configuration was validated on hardware. The RTL8211F requires its internal RX delay for reliable operation, while an additional TX delay is not required. Signed-off-by: Prasanth Kumar Padarthi --- arch/arm/boot/dts/aspeed/Makefile | 1 + .../dts/aspeed/aspeed-bmc-asrock-b650d4u.dts | 95 +++++++++++++++++++ 2 files changed, 96 insertions(+) create mode 100644 arch/arm/boot/dts/aspeed/aspeed-bmc-asrock-b650d4u.dts diff --git a/arch/arm/boot/dts/aspeed/Makefile b/arch/arm/boot/dts/aspeed/M= akefile index 6b68671f9379..b109491d5c8f 100644 --- a/arch/arm/boot/dts/aspeed/Makefile +++ b/arch/arm/boot/dts/aspeed/Makefile @@ -10,6 +10,7 @@ dtb-$(CONFIG_ARCH_ASPEED) +=3D \ aspeed-bmc-ampere-mtmitchell.dtb \ aspeed-bmc-arm-stardragon4800-rep2.dtb \ aspeed-bmc-asrock-altrad8.dtb \ + aspeed-bmc-asrock-b650d4u.dtb \ aspeed-bmc-asrock-e3c246d4i.dtb \ aspeed-bmc-asrock-e3c256d4i.dtb \ aspeed-bmc-asrock-paul-ipmi-card.dtb \ diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-asrock-b650d4u.dts b/arch/= arm/boot/dts/aspeed/aspeed-bmc-asrock-b650d4u.dts new file mode 100644 index 000000000000..aa623f0ca36c --- /dev/null +++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-asrock-b650d4u.dts @@ -0,0 +1,95 @@ +// SPDX-License-Identifier: GPL-2.0 +/dts-v1/; + +#include "aspeed-g6.dtsi" + +/ { + model =3D "ASRock Rack B650D4U BMC"; + compatible =3D "asrock,b650d4u-bmc", "aspeed,ast2600"; + + aliases { + serial0 =3D &uart5; + }; + + chosen { + stdout-path =3D "serial0:115200n8"; + }; + + memory@80000000 { + device_type =3D "memory"; + reg =3D <0x80000000 0x20000000>; + }; +}; + +&fmc { + status =3D "okay"; + + flash@0 { + compatible =3D "jedec,spi-nor"; + reg =3D <0>; + label =3D "bmc"; + m25p,fast-read; + spi-max-frequency =3D <50000000>; + spi-rx-bus-width =3D <4>; + status =3D "okay"; + + partitions { + compatible =3D "fixed-partitions"; + #address-cells =3D <1>; + #size-cells =3D <1>; + + u-boot@0 { + reg =3D <0x00000000 0x000e0000>; + label =3D "u-boot"; + read-only; + }; + + u-boot-env@e0000 { + reg =3D <0x000e0000 0x00020000>; + label =3D "u-boot-env"; + }; + + kernel@200000 { + reg =3D <0x00200000 0x00800000>; + label =3D "kernel"; + }; + + rofs@a00000 { + reg =3D <0x00a00000 0x02000000>; + label =3D "rofs"; + read-only; + }; + + rwfs@2a00000 { + reg =3D <0x02a00000 0x01600000>; + label =3D "rwfs"; + }; + }; + }; +}; + +&mac0 { + status =3D "okay"; + + /* + * The RTL8211F provides the required RGMII RX delay. No additional + * TX delay is required for this board. + */ + phy-mode =3D "rgmii-rxid"; + phy-handle =3D <ðphy0>; + pinctrl-names =3D "default"; + pinctrl-0 =3D <&pinctrl_rgmii1_default>; +}; + +&mdio0 { + status =3D "okay"; + + ethphy0: ethernet-phy@0 { + compatible =3D "ethernet-phy-ieee802.3-c22"; + reg =3D <0>; + }; +}; + +&uart5 { + status =3D "okay"; +}; --=20 2.47.3