diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/806-dma-0018-dma-imx-add-the-32bit-dma-limitation.patch')
| -rw-r--r-- | target/linux/layerscape/patches-5.4/806-dma-0018-dma-imx-add-the-32bit-dma-limitation.patch | 38 |
1 files changed, 0 insertions, 38 deletions
diff --git a/target/linux/layerscape/patches-5.4/806-dma-0018-dma-imx-add-the-32bit-dma-limitation.patch b/target/linux/layerscape/patches-5.4/806-dma-0018-dma-imx-add-the-32bit-dma-limitation.patch deleted file mode 100644 index 7c1f4f94cd..0000000000 --- a/target/linux/layerscape/patches-5.4/806-dma-0018-dma-imx-add-the-32bit-dma-limitation.patch +++ /dev/null @@ -1,38 +0,0 @@ -From bd7176b9cb91671b248fbdef0c65d2893fd78226 Mon Sep 17 00:00:00 2001 -From: Richard Zhu <hongxing.zhu@nxp.com> -Date: Fri, 25 Jan 2019 18:02:22 +0800 -Subject: [PATCH] dma: imx: add the 32bit dma limitation - -Since the imx8qm/qxp hsio only supports up to 32bit -dma capability. -Add the 32bit dma limitation into dma binding document. - -Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com> ---- - Documentation/devicetree/bindings/dma/fsl-imx-dma.txt | 15 +++++++++++++++ - 1 file changed, 15 insertions(+) - ---- a/Documentation/devicetree/bindings/dma/fsl-imx-dma.txt -+++ b/Documentation/devicetree/bindings/dma/fsl-imx-dma.txt -@@ -16,6 +16,21 @@ Optional properties: - - #dma-channels : Number of DMA channels supported. Should be 16. - - #dma-requests : Number of DMA requests supported. - -+* 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>; -+ }; -+ - Example: - - dma: dma@10001000 { |