[v1] riscv: sophgo: allow DMA multiplexer set channel number for DMA controller

[PATCH 0/3] riscv: sophgo: allow DMA multiplexer set channel number for DMA controller

Inochi Amaoto posted 3 patches 1 month, 3 weeks ago

Diff against v2 v3
Download series mbox

There is a newer version of this series

.../bindings/dma/snps,dw-axi-dmac.yaml        |  1 +
arch/riscv/boot/dts/sophgo/cv180x.dtsi        |  2 +-
.../dma/dw-axi-dmac/dw-axi-dmac-platform.c    | 23 ++++++++++++++++---
drivers/dma/dw-axi-dmac/dw-axi-dmac.h         |  1 +
4 files changed, 23 insertions(+), 4 deletions(-)

Expand all Fold all

[PATCH 0/3] riscv: sophgo: allow DMA multiplexer set channel number for DMA controller

Posted by Inochi Amaoto 1 month, 3 weeks ago

As the DMA controller on Sophgo CV1800 series SoC only has 8 channels,
the SoC provides a dma multiplexer to reuse the DMA channel. However,
the dma multiplexer also controlls the DMA interrupt multiplexer, which
means that the dma multiplexer needs to know the channel number.

Inochi Amaoto (3):
  dt-bindings: dma: snps,dw-axi-dmac: Add CV1800B compatible
  dmaengine: dw-axi-dmac: Add support for CV1800B DMA
  riscv: dts: sophgo: cv180x: Allow the DMA multiplexer to set channel
    number for DMA controller

 .../bindings/dma/snps,dw-axi-dmac.yaml        |  1 +
 arch/riscv/boot/dts/sophgo/cv180x.dtsi        |  2 +-
 .../dma/dw-axi-dmac/dw-axi-dmac-platform.c    | 23 ++++++++++++++++---
 drivers/dma/dw-axi-dmac/dw-axi-dmac.h         |  1 +
 4 files changed, 23 insertions(+), 4 deletions(-)

--
2.52.0