arm64: dts: st: add HPDMA nodes on stm32mp251

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The High Performance Direct Memory Access (HPDMA) controller is used to
perform programmable data transfers between memory-mapped peripherals
and memories (or between memories) via linked-lists.

There are 3 instances of HPDMA on stm32mp251, using stm32-dma3 driver, with
16 channels per instance and with one interrupt per channel.
Channels 0 to 7 are implemented with a FIFO of 8 bytes.
Channels 8 to 11 are implemented with a FIFO of 32 bytes.
Channels 12 to 15 are implemented with a FIFO of 128 bytes.
Thanks to stm32-dma3 bindings, the user can ask for a channel with specific
FIFO size.

Signed-off-by: Amelie Delaunay <amelie.delaunay@foss.st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>

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Amelie Delaunay 2024-05-31 17:07:12 +02:00 • committed by Alexandre Torgue

parent 1b02383c38

commit 7253ddc6a3

1 changed files with 69 additions and 0 deletions

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arch/arm64/boot/dts/st/stm32mp251.dtsi

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