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am437x usb

Other Parts Discussed in Thread: AM4379

你好,最近在使用am4379做开发的时候,遇到了usb不能使用的问题,插上U盘没有反应,我进入系统查看了proc/iomem,发现usb的节点并没有映射显示如下:

但是我在设备树里却配置好了节点了:

没有映射节点是怎么回事呢?