diff options
| author | Shengjiu Wang <shengjiu.wang@freescale.com> | 2017-06-05 11:37:57 +0800 |
|---|---|---|
| committer | Dong Aisheng <aisheng.dong@nxp.com> | 2019-11-25 16:03:10 +0800 |
| commit | 5dd7504280297a19c2812194961feddfff5f52fa (patch) | |
| tree | fc949d17afdd447bb21fd90654a44bc7961c44aa /Documentation/devicetree/bindings/dma | |
| parent | f61b296ab2ebf011cd5732e588144a61c3f959fb (diff) | |
MLK-15003-2: Document: fsl_edma_v3: update document
update fsl_edma_v3 document for #dma-cell is changed
one more cell is added, which is for local/remote access.
Signed-off-by: Shengjiu Wang <shengjiu.wang@freescale.com>
(cherry picked from commit 65543fb7fefbdb7df4cb60931a88f61507c5073f)
Diffstat (limited to 'Documentation/devicetree/bindings/dma')
| -rw-r--r-- | Documentation/devicetree/bindings/dma/fsl-edma-v3.txt | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/Documentation/devicetree/bindings/dma/fsl-edma-v3.txt b/Documentation/devicetree/bindings/dma/fsl-edma-v3.txt index 4c574937b729..322b2c64f396 100644 --- a/Documentation/devicetree/bindings/dma/fsl-edma-v3.txt +++ b/Documentation/devicetree/bindings/dma/fsl-edma-v3.txt @@ -14,11 +14,13 @@ Required properties: - interrupts : A list of interrupt-specifiers, each channel has one interrupt. - interrupt-names : Should contain: "edma-chan12-tx" - the channel12 transmission interrupt -- #dma-cells : Must be <3>. +- #dma-cells : Must be <4>. The 1st cell specifies the channel ID. The 2nd cell specifies the channel priority. The 3rd cell specifies the channel type like for transmit or receive: 0: transmit, 1: receive. + The 4th cell specifies the local access or remote access: + 0: local, 1: remote. See the SoC's reference manual for all the supported request sources. - dma-channels : Number of channels supported by the controller @@ -29,7 +31,7 @@ edma0: dma-controller@40018000 { <0x0 0x5a2d0000 0x0 0x10000>, /* channel13 UART0 tx */ <0x0 0x5a2e0000 0x0 0x10000>, /* channel14 UART1 rx */ <0x0 0x5a2f0000 0x0 0x10000>; /* channel15 UART1 tx */ - #dma-cells = <3>; + #dma-cells = <4>; dma-channels = <4>; interrupts = <GIC_SPI 434 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 435 IRQ_TYPE_LEVEL_HIGH>, @@ -58,7 +60,7 @@ lpuart1: serial@5a070000 { assigned-clock-rates = <80000000>; power-domains = <&pd_dma_lpuart1>; dma-names = "tx","rx"; - dmas = <&edma0 15 0 0>, - <&edma0 14 0 1>; + dmas = <&edma0 15 0 0 0>, + <&edma0 14 0 1 0>; status = "disabled"; }; |