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Tue, 16 Sep 2025 06:23:13 -0700 (PDT) From: Zixian Zeng Date: Tue, 16 Sep 2025 21:22:53 +0800 Subject: [PATCH v2 4/4] riscv: dts: sophgo: Enable SPI NOR node for SG2042_EVB_V2 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: <20250916-sfg-spidts-v2-4-b5d9024fe1c8@gmail.com> References: <20250916-sfg-spidts-v2-0-b5d9024fe1c8@gmail.com> In-Reply-To: <20250916-sfg-spidts-v2-0-b5d9024fe1c8@gmail.com> To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Chen Wang , Inochi Amaoto , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti Cc: devicetree@vger.kernel.org, sophgo@lists.linux.dev, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, Han Gao , Longbin Li , Zixian Zeng X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1758028972; l=1060; i=sycamoremoon376@gmail.com; s=20250113; h=from:subject:message-id; bh=SHdpc+7cha07M+f6R46l6uT5x3VEV6Ux3f9d/uogxOc=; b=qrayuAe2fZLnjYDzxOLnAw2az6O9llF8jgD6vCjLrtRLt6EDzsqs6MurTj5fqyOKNCoHEPBvE Pr3wyrlOZPfBNPeEyGepFgePvGPIMqcszpioEq6XQVSUSDGYOvRr9xR X-Developer-Key: i=sycamoremoon376@gmail.com; a=ed25519; pk=OYfH6Z2Nx3aU1r0UZdvhskmddV6KC6V1nyFjsQQt4J8= Enable SPI NOR node for SG2042_EVB_V2 device tree According to SG2042_EVB_V2 schematic, SPI-NOR Flash cannot support QSPI due to hardware design. Thus spi-(tx|rx)-bus-width must be set to 1. Signed-off-by: Han Gao Signed-off-by: Zixian Zeng --- arch/riscv/boot/dts/sophgo/sg2042-evb-v2.dts | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/riscv/boot/dts/sophgo/sg2042-evb-v2.dts b/arch/riscv/boot= /dts/sophgo/sg2042-evb-v2.dts index 46980e41b886ce17dacce791fa5f2cef14cfa214..78460b2851a231a3e06b28f9ac6= bffd4700e7dab 100644 --- a/arch/riscv/boot/dts/sophgo/sg2042-evb-v2.dts +++ b/arch/riscv/boot/dts/sophgo/sg2042-evb-v2.dts @@ -226,6 +226,18 @@ &sd { status =3D "okay"; }; =20 +&spifmc1 { + status =3D "okay"; + + flash@0 { + compatible =3D "jedec,spi-nor"; + reg =3D <0>; + spi-max-frequency =3D <50000000>; + spi-tx-bus-width =3D <1>; + spi-rx-bus-width =3D <1>; + }; +}; + &uart0 { pinctrl-0 =3D <&uart0_cfg>; pinctrl-names =3D "default"; --=20 2.51.0