diff options
author | Richard Zhu <hongxing.zhu@nxp.com> | 2017-05-26 16:41:46 +0800 |
---|---|---|
committer | Leonard Crestez <leonard.crestez@nxp.com> | 2018-08-24 12:41:33 +0300 |
commit | 3ce2f046d086ce2eeea131427b81df3bd5ca243d (patch) | |
tree | 07152c29ea80177de0958cc130614ea5c4ec52bc /Documentation/devicetree/bindings/dma/fsl-imx-dma.txt | |
parent | c64898abe3dbfc35cd11ec8cb2c2d682107e6f6f (diff) |
MLK-15064-1 ARM: imx: pcie: enable imx8 pcie
- use one standalone hsio node to share the region to
pciea, pcieb and sata.
- axi master slave and dbi clks and pipe_clk are required
- enable pcieb
change the pd of the pcieb, otherwise, clk is failed to enable
- add the cpu addr offset
Bit[31:24]
pciea 60 - 6f ---> 40 - 4f
pcieb 70 - 7f ---> 80 - 8f
Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Reviewed-by: Frank Li <frank.li@nxp.com>
Diffstat (limited to 'Documentation/devicetree/bindings/dma/fsl-imx-dma.txt')
-rw-r--r-- | Documentation/devicetree/bindings/dma/fsl-imx-dma.txt | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/dma/fsl-imx-dma.txt b/Documentation/devicetree/bindings/dma/fsl-imx-dma.txt index 7bd8847d6394..63010924d42a 100644 --- a/Documentation/devicetree/bindings/dma/fsl-imx-dma.txt +++ b/Documentation/devicetree/bindings/dma/fsl-imx-dma.txt @@ -46,3 +46,18 @@ Example: dma-names = "rx-tx"; ... }; + +* DMA capability limitation + +Specify the DMA capability limitations. +For example, some SoCs only support up to 32bit DMA capability, although +they are 64bit SoCs. + +- only-dma-mask32: 1 means that the SoCs only suppot up to 32bit DMA + capability. + +Example: + dma_cap: dma_cap { + compatible = "dma-capability"; + only-dma-mask32 = <1>; + }; |