Hi Andrea,
Am 04.02.24 um 07:59 schrieb Andrea della Porta:
> This patchset aims to update the dma engine for BCM* chipset with respect
> to current advancements in downstream vendor tree. In particular:
>
> * Added support for BCM2712 DMA.
> * Extended DMA addressing to 40 bit. Since BCM2711 also supports 40 bit addressing,
> it will also benefit from the update.
> * Handled the devicetree node from vendor dts (e.g. "dma40").
>
> The only difference between the application of this patch and the relative code
> in vendor tree is the dropping of channel reservation for BCM2708 DMA legacy
> driver, that seems to have not made its way to upstream anyway, and it's
> probably used only from deprecated subsystems.
>
> Compile tested and runtime tested on RPi4B only.
sorry but this is not sufficient. AFAIK only the Raspberry Pi 5 has a
BCM2712. I suggest to start with BCM2711 40 bit support, which is enough
work.
This whole series does neither contain a change to the dt-bindings nor
to the DTS files. This is not how it works.
Best regards
>
> Dom Cobley (4):
> bcm2835-dma: Support dma flags for multi-beat burst
> bcm2835-dma: Need to keep PROT bits set in CS on 40bit controller
> dmaengine: bcm2835: Rename to_bcm2711_cbaddr to to_40bit_cbaddr
> bcm2835-dma: Fixes for dma_abort
>
> Maxime Ripard (2):
> dmaengine: bcm2835: Use to_bcm2711_cbaddr where relevant
> dmaengine: bcm2835: Support DMA-Lite channels
>
> Phil Elwell (6):
> bcm2835-dma: Add support for per-channel flags
> bcm2835-dma: Add proper 40-bit DMA support
> bcm2835-dma: Add NO_WAIT_RESP, DMA_WIDE_SOURCE and DMA_WIDE_DEST flag
> bcm2835-dma: Advertise the full DMA range
> bcm2835-dma: Derive slave DMA addresses correctly
> dmaengine: bcm2835: Add BCM2712 support
>
> drivers/dma/bcm2835-dma.c | 701 ++++++++++++++++++++++++++++++++------
> 1 file changed, 588 insertions(+), 113 deletions(-)
>