VisionFive 2 Board Level Configuration

The board level device tree file (DTSI file) stores all differentiation information for each board-level device. (For example, common.dtsi, jh7110-visionfive-v2.dts, and jh7110-visionfive-v2.dtsi, etc. )

The common.dtsi file is stored in the following path:

freelight-u-sdk/linux/arch/riscv/boot/dts/starfive/jh7110-common.dtsi

For example, the pin configuration of PWM on the VisionFive 2 SBC is listed under the pwm_pins node in the file jh7110-visionfive-v2.dtsi.

The following code block provides an example of the pins used by PWM including dout (Data Output), doen (Data Output Enable), and so on.

pwm_pins: pwm-pins {
                pwm_ch0-pins {
                        sf,pins = <PAD_GPIO46>;
                        sf,pinmux = <PAD_GPIO46_FUNC_SEL 0>;
                        sf,pin-ioconfig = <IO(GPIO_IE(1))>;
                        sf,pin-gpio-dout = <GPO_PTC0_PWM_0>;
                        sf,pin-gpio-doen = <OEN_PTC0_PWM_0_OE_N>;
                };

                pwm_ch1-pins {
                        sf,pins = <PAD_GPIO59>;
                        sf,pinmux = <PAD_GPIO59_FUNC_SEL 0>;
                        sf,pin-ioconfig = <IO(GPIO_IE(1))>;
                        sf,pin-gpio-dout = <GPO_PTC0_PWM_1>;
                        sf,pin-gpio-doen = <OEN_PTC0_PWM_1_OE_N>;
                };
};