On Fri, 10 Jan 2020 18:29:35 +0100, Nicolas Saenz Julienne <nsaenzjulienne@xxxxxxx> wrote: > With the introduction of the Raspberry Pi 4 we were forced to explicitly > configure CMA's location, since arm64 defaults it into the ZONE_DMA32 > memory area, which is not good enough to perform DMA operations on that > device. To bypass this limitation a dedicated CMA DT node was created, > explicitly indicating the acceptable memory range and size. > > That said, compatibility between boards is a must on the Raspberry Pi > ecosystem so this creates a common CMA DT node so as for DT overlays to > be able to update CMA's properties regardless of the board being used. > > Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@xxxxxxx> > --- Applied to devicetree/next, thanks! -- Florian
