Add SPI NOR driver for Sophgo, including read, write operations. This driver is only suitable for NOR flash. Longbin Li (3): dt-bindings: spi: add Sophgo SPI NOR controller driver spi: sophgo: add Sophgo SPI NOR controller driver riscv: dts: sophgo: add Sophgo SPI NOR controller driver .../bindings/spi/spi-sophgo-nor.yaml | 52 ++ .../boot/dts/sophgo/sg2044-sophgo-sd3-10.dts | 18 + arch/riscv/boot/dts/sophgo/sg2044.dtsi | 24 + drivers/spi/Kconfig | 9 + drivers/spi/Makefile | 1 + drivers/spi/spi-sophgo-nor.c | 501 ++++++++++++++++++ 6 files changed, 605 insertions(+) create mode 100644 Documentation/devicetree/bindings/spi/spi-sophgo-nor.yaml create mode 100644 drivers/spi/spi-sophgo-nor.c -- 2.48.1