diff options
Diffstat (limited to 'Documentation/devicetree/bindings/dma')
| -rw-r--r-- | Documentation/devicetree/bindings/dma/nbpfaxi.txt | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/dma/nbpfaxi.txt b/Documentation/devicetree/bindings/dma/nbpfaxi.txt index d5e2522b9ec1..d2e1e62e346a 100644 --- a/Documentation/devicetree/bindings/dma/nbpfaxi.txt +++ b/Documentation/devicetree/bindings/dma/nbpfaxi.txt @@ -23,6 +23,14 @@ Required properties #define NBPF_SLAVE_RQ_LEVEL 4 Optional properties: +- max-burst-mem-read: limit burst size for memory reads + (DMA_MEM_TO_MEM/DMA_MEM_TO_DEV) to this value, specified in bytes, rather + than using the maximum burst size allowed by the hardware's buffer size. +- max-burst-mem-write: limit burst size for memory writes + (DMA_DEV_TO_MEM/DMA_MEM_TO_MEM) to this value, specified in bytes, rather + than using the maximum burst size allowed by the hardware's buffer size. + If both max-burst-mem-read and max-burst-mem-write are set, DMA_MEM_TO_MEM + will use the lower value. You can use dma-channels and dma-requests as described in dma.txt, although they won't be used, this information is derived from the compatibility string. |