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Thu, 08 Jan 2026 04:28:15 -0800 (PST) From: Guodong Xu Date: Thu, 08 Jan 2026 20:26:02 +0800 Subject: [PATCH v3 11/11] riscv: dts: spacemit: add SpacemiT K3 Pico-ITX board device tree Precedence: bulk X-Mailing-List: linux-serial@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260108-k3-basic-dt-v3-11-ed99eb4c3ad3@riscstar.com> References: <20260108-k3-basic-dt-v3-0-ed99eb4c3ad3@riscstar.com> In-Reply-To: <20260108-k3-basic-dt-v3-0-ed99eb4c3ad3@riscstar.com> To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Yixun Lan , Daniel Lezcano , Thomas Gleixner , Samuel Holland , Anup Patel , Greg Kroah-Hartman , Jiri Slaby , Lubomir Rintel , Yangyu Chen Cc: Paul Walmsley , Conor Dooley , Heinrich Schuchardt , Kevin Meng Zhang , Anup Patel , Andrew Jones , devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, spacemit@lists.linux.dev, linux-serial@vger.kernel.org, Guodong Xu X-Mailer: b4 0.14.2 K3 Pico-ITX is a 2.5-inch single-board computer equipted with a SpacemiT K3 SoC. This minimal device tree enables booting into a serial console with UART output. Signed-off-by: Guodong Xu --- v3: No change. v2: Add aliases node in this board DT. Update the memory node to reflect the hardware truth. Address starts at 0x100000000 (4G) boundary. --- arch/riscv/boot/dts/spacemit/Makefile | 1 + arch/riscv/boot/dts/spacemit/k3-pico-itx.dts | 38 ++++++++++++++++++++++++++++ 2 files changed, 39 insertions(+) diff --git a/arch/riscv/boot/dts/spacemit/Makefile b/arch/riscv/boot/dts/spacemit/Makefile index 95889e7269d1bae679b28cd053e1b0a23ae6de68..7e2b877025718113a0e31917eadf7562f488d825 100644 --- a/arch/riscv/boot/dts/spacemit/Makefile +++ b/arch/riscv/boot/dts/spacemit/Makefile @@ -4,3 +4,4 @@ dtb-$(CONFIG_ARCH_SPACEMIT) += k1-milkv-jupiter.dtb dtb-$(CONFIG_ARCH_SPACEMIT) += k1-musepi-pro.dtb dtb-$(CONFIG_ARCH_SPACEMIT) += k1-orangepi-r2s.dtb dtb-$(CONFIG_ARCH_SPACEMIT) += k1-orangepi-rv2.dtb +dtb-$(CONFIG_ARCH_SPACEMIT) += k3-pico-itx.dtb diff --git a/arch/riscv/boot/dts/spacemit/k3-pico-itx.dts b/arch/riscv/boot/dts/spacemit/k3-pico-itx.dts new file mode 100644 index 0000000000000000000000000000000000000000..037ce757e5bcae0258a326ea6265185d761f2b52 --- /dev/null +++ b/arch/riscv/boot/dts/spacemit/k3-pico-itx.dts @@ -0,0 +1,38 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MIT) +/* + * Copyright (c) 2025 SpacemiT (Hangzhou) Technology Co. Ltd + * Copyright (c) 2025 Guodong Xu + */ + +#include "k3.dtsi" + +/ { + model = "SpacemiT K3 Pico-ITX"; + compatible = "spacemit,k3-pico-itx", "spacemit,k3"; + + aliases { + serial0 = &uart0; + serial2 = &uart2; + serial3 = &uart3; + serial4 = &uart4; + serial5 = &uart5; + serial6 = &uart6; + serial7 = &uart7; + serial8 = &uart8; + serial9 = &uart9; + serial10 = &uart10; + }; + + chosen { + stdout-path = "serial0"; + }; + + memory@100000000 { + device_type = "memory"; + reg = <0x1 0x00000000 0x4 0x00000000>; + }; +}; + +&uart0 { + status = "okay"; +}; -- 2.43.0