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Tue, 12 May 2026 10:50:40 -0700 (PDT) From: Prasanth Kumar Padarthi To: joel@jms.id.au, andrew@codeconstruct.com.au Cc: robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, devicetree@vger.kernel.org, linux-aspeed@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org, Prasanth Kumar Padarthi Subject: [PATCH 2/2] ARM: dts: aspeed: Add ASRock Rack B650D4U BMC Date: Tue, 12 May 2026 23:20:19 +0530 Message-ID: <20260512175019.47548-3-prasanth.padarthi10@gmail.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260512175019.47548-1-prasanth.padarthi10@gmail.com> References: <20260512175019.47548-1-prasanth.padarthi10@gmail.com> X-Mailing-List: linux-aspeed@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add initial device tree support for the ASRock Rack B650D4U BMC. The B650D4U is a server motherboard utilizing the ASPEED AST2600 SoC for management. Signed-off-by: Prasanth Kumar Padarthi --- arch/arm/boot/dts/aspeed/Makefile | 1 + .../dts/aspeed/aspeed-bmc-asrock-b650d4u.dts | 61 +++++++++++++++++++ 2 files changed, 62 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/Makefile index c4f064e4b..124d4f8f8 100644 --- a/arch/arm/boot/dts/aspeed/Makefile +++ b/arch/arm/boot/dts/aspeed/Makefile @@ -13,6 +13,7 @@ dtb-$(CONFIG_ARCH_ASPEED) += \ aspeed-bmc-asrock-romed8hm3.dtb \ aspeed-bmc-asrock-spc621d8hm3.dtb \ aspeed-bmc-asrock-x570d4u.dtb \ + aspeed-bmc-asrock-b650d4u.dtb \ aspeed-bmc-asus-x4tf.dtb \ aspeed-bmc-bytedance-g220a.dtb \ aspeed-bmc-delta-ahe50dc.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 000000000..d0b9c1e1f --- /dev/null +++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-asrock-b650d4u.dts @@ -0,0 +1,61 @@ +// SPDX-License-Identifier: GPL-2.0 +/dts-v1/; + +#include "aspeed-g6.dtsi" +#include // Recommended for GPIO mapping + +/ { + model = "ASRock Rack B650D4U BMC"; + compatible = "asrock,b650d4u-bmc", "aspeed,ast2600"; + + aliases { + serial4 = &uart5; + }; + + chosen { + stdout-path = "serial4:115200n8"; + }; + + memory@80000000 { + device_type = "memory"; + reg = <0x80000000 0x40000000>; + }; +}; + +/* BMC Console UART */ +&uart5 { + status = "okay"; +}; + +/* SPI Flash Management */ +&fmc { + status = "okay"; + flash@0 { + status = "okay"; + m25p,fast-read; + label = "bmc"; + }; +}; + +/* Dedicated Management LAN */ +&mac0 { + status = "okay"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_rgmii1_default &pinctrl_mdio1_default>; +}; + +/* I2C Bus for FRU/EEPROM Storage */ +&i2c7 { + status = "okay"; + eeprom@57 { + compatible = "atmel,24c02"; + reg = <0x57>; + pagesize = <16>; + }; +}; + +/* System Watchdog */ +&wdt1 { + status = "okay"; + aspeed,reset-type = "soc"; +}; -- 2.47.3