This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

AM5728 pcie EP识别问题

Other Parts Discussed in Thread: AM5728

大家好,我们参考AM5728 IDK设计的板子,现在需通过PCIE 与xilinx FPGA 通信,5728作为RC,我们设计中是通过PEX8624做交换, 系统运行起来后,在AM5728上输入命令lspci -v 能识别出8624,但是识别不了FPGA设备,我们把AM5728换成以前设计的8168,就能看到FPGA设备,请问这是什么原因呢,需要配置什么吗?在5728设备树里面我们把PCIE修改如下:

&pcie1_rc {
status = "okay";
/*  

gpios = <&gpio3 23 GPIO_ACTIVE_HIGH>;
*/

};

&pcie1_ep {

/*
gpios = <&gpio3 23 GPIO_ACTIVE_HIGH>;

*/
};

上面的GPIO3_23在PCIE接口上我们没使用,所以注释掉了,