现象是这样的,插入sd卡可启动385板,但进入内核后插拔卡内核就检测不到,插拔卡gpio读写是正确的。调试跟踪发现mmc主机控制器并没有发出命令,相应的时钟信号也没有。
另外,同样的软硬件设计,只把385换为8127就不存在这个问题。rdk版本是3.8。请大家帮我分析下是哪里原因,谢谢!
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.