PCIe endpoint问题请教

谢谢，但是在我的设计中，keystone单板是作为PC的一块板卡，是EP设备。PC驱动可以正确识别单板，这个时候是否在Linux内核不用在配置PCIe phy设备，也就是PCIe链路已经建立。

另外一个问题，如果我在Linux设备树中开启PCIe phy，驱动的时候出现如下错误提示：

[    3.406779] ti,keystone-serdes 2320000.phy: Direct firmware load for ks2_pcie_serdes.bin failed with error -2                                                                                                                                                                
[    3.406789] ti,keystone-serdes 2320000.phy: can't get any serdes init fw                                                                                                                                                                                                     
[    3.406797] ti,keystone-serdes 2320000.phy: serdes procider init failed -19    

请问，如何解决？

设备树修改如下：

pcie0_phy: phy@2320000 {
#phy-cells = <0>;
compatible = "ti,keystone-serdes-pcie";
reg = <0x02320000 0x4000>;
link-rate-kbps = <2500000>;
num-lanes = <2>;
status = "okay";
clocks = <&clkpcie>;
clock-names = "fck";
};