• Peter Ujfalusi's avatar
    ARM: DTS: da850: Use the new DT bindings for the eDMA3 · 7a7faedd
    Peter Ujfalusi authored
    Switch to use the ti,edma3-tpcc and ti,edma3-tptc binding for the eDMA3.
    With the new bindings boards can customize and tweak the DMA channel
    priority to match their needs. With the new binding the memcpy is safe
    to be used since with the old binding it was not possible for a driver
    to know which channel is allowed to be used as non HW triggered channel.
    Using the new binding will allow us to reserve PaRAM slots to be used by
    the DSP which was not possible before and prevented the da850 boards to be
    moved to DT only.
    
    Note that the DMA memcpy is disabled, it can be enabled by reserving
    channels for memcpy by adding the following property to the edma node:
    ti,edma-memcpy-channels = <20 21>; /* Reserving channel 20 and 21 for memcpy */
    Signed-off-by: default avatarPeter Ujfalusi <peter.ujfalusi@ti.com>
    Tested-by: default avatarSushaanth Srirangapathi <sushaanth.s@ti.com>
    Signed-off-by: default avatarSekhar Nori <nsekhar@ti.com>
    7a7faedd
da850.dtsi 7.62 KB