Hello, I have encountered a problem when debugging the usx host2 of the imx27. In the hardware circuit, the processor communicates with the usb interface through the chip isp1504. In my test, after configuring each pin, but not successfully setting up the isp1504 program, the phrase “while (__raw_readl(view) & ULPIVW_RUN) never exits, and I see that the manual is cleared automatically. I think it may be a driving problem. Can I give me a corresponding drive?