hi,TI
我们现在使用自己的板子,通过OSPI连接FPGA;
现在问题是:根据TRM中对OSPI的说明,貌似只能让FPGA以Flash形式运行,
能否有其他更便捷的方式可对FPGA进行读写?
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目前在dts中配置ospi如下:
&ospi0 {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&ospi_fpga_pins_default &ospi_fpga_pins_add>;
fpga@0 {
compatible = "ti,am654-ospi";
reg = <0x0>;
spi-tx-bus-width = <8>;
spi-rx-bus-width = <8>;
spi-max-frequency = <25000000>;
cdns,tshsl-ns = <60>;
cdns,tsd2d-ns = <60>;
cdns,tchsh-ns = <60>;
cdns,tslch-ns = <60>;
cdns,read-delay = <4>;
bootph-all;
};
};
对应的驱动貌似无法挂载设备,若我想使用该驱动或者使用其他驱动读写FPGA应该怎么操作?