Cannot attach a second spi for arria10

thanks for the help!

I have solved the uboot issue problem by using linux kernel generated dtb files instead of uboot generated one.

and the dtsi file modified below to enable 2 spidev, and seems it works,

&spi0 {
status = "okay";

spidev@0{
compatible = "spidev";
reg = <0>;
spi-max-frequency = <4000000>;
};

};

&spi1 {
status = "okay";

spidev@0{
compatible = "spidev";
reg = <0>;
spi-max-frequency = <4000000>;
};

};

I have check the board /dev with below while didn't have a chance to test.

any comments are welcome, sorry for late feedback.