准备采用最新的processor sdk(3.3.0.4),配置中已经具有了edma驱动,请问,设备树如何处理?
另外,系统自带的edma驱动提供的驱动层接口函数是什么样的,应用层如何调用?
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准备采用最新的processor sdk(3.3.0.4),配置中已经具有了edma驱动,请问,设备树如何处理?
另外,系统自带的edma驱动提供的驱动层接口函数是什么样的,应用层如何调用?
A15上没有现成的例子,参考A8的例子
http://processors.wiki.ti.com/index.php/EDMA_sample_test_application
以及设备树及其说明
http://git.ti.com/ti-linux-kernel/ti-linux-kernel/blobs/ti-linux-3.12.y/Documentation/devicetree/bindings/dma/ti-edma.txt
http://processors.wiki.ti.com/index.php/TI81XX_PSP_EDMA_Driver_User_Guide