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Fri, 09 Jan 2026 21:20:48 -0800 (PST) From: Guodong Xu Date: Sat, 10 Jan 2026 13:18:23 +0800 Subject: [PATCH v4 11/11] riscv: dts: spacemit: add SpacemiT K3 Pico-ITX board device tree Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260110-k3-basic-dt-v4-11-d492f3a30ffa@riscstar.com> References: <20260110-k3-basic-dt-v4-0-d492f3a30ffa@riscstar.com> In-Reply-To: <20260110-k3-basic-dt-v4-0-d492f3a30ffa@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 0.14.3 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 --- v4: No change. 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/sp= acemit/Makefile index 95889e7269d1..7e2b87702571 100644 --- a/arch/riscv/boot/dts/spacemit/Makefile +++ b/arch/riscv/boot/dts/spacemit/Makefile @@ -4,3 +4,4 @@ dtb-$(CONFIG_ARCH_SPACEMIT) +=3D k1-milkv-jupiter.dtb dtb-$(CONFIG_ARCH_SPACEMIT) +=3D k1-musepi-pro.dtb dtb-$(CONFIG_ARCH_SPACEMIT) +=3D k1-orangepi-r2s.dtb dtb-$(CONFIG_ARCH_SPACEMIT) +=3D k1-orangepi-rv2.dtb +dtb-$(CONFIG_ARCH_SPACEMIT) +=3D 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 000000000000..037ce757e5bc --- /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 =3D "SpacemiT K3 Pico-ITX"; + compatible =3D "spacemit,k3-pico-itx", "spacemit,k3"; + + aliases { + serial0 =3D &uart0; + serial2 =3D &uart2; + serial3 =3D &uart3; + serial4 =3D &uart4; + serial5 =3D &uart5; + serial6 =3D &uart6; + serial7 =3D &uart7; + serial8 =3D &uart8; + serial9 =3D &uart9; + serial10 =3D &uart10; + }; + + chosen { + stdout-path =3D "serial0"; + }; + + memory@100000000 { + device_type =3D "memory"; + reg =3D <0x1 0x00000000 0x4 0x00000000>; + }; +}; + +&uart0 { + status =3D "okay"; +}; --=20 2.43.0