I am doing a bare-metal i.MX6 quad.
The basic SDMA engine (scripts) only allows 64 buffer descriptors. Can this be increased (new scripts)?
Also, the example SDK shows that the buffer (not BD) memory must be non-cache. Compared to the PowerQuiccII this seems like a drawback. Does the SDMA engine allow snooping on the bus so that the buffer memory can be cached?