diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/806-dma-0005-MLK-15003-2-Document-fsl_edma_v3-update-document.patch')
| -rw-r--r-- | target/linux/layerscape/patches-5.4/806-dma-0005-MLK-15003-2-Document-fsl_edma_v3-update-document.patch | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/806-dma-0005-MLK-15003-2-Document-fsl_edma_v3-update-document.patch b/target/linux/layerscape/patches-5.4/806-dma-0005-MLK-15003-2-Document-fsl_edma_v3-update-document.patch new file mode 100644 index 0000000000..bde8dd55e8 --- /dev/null +++ b/target/linux/layerscape/patches-5.4/806-dma-0005-MLK-15003-2-Document-fsl_edma_v3-update-document.patch @@ -0,0 +1,50 @@ +From c5a10c542853662bf85884aecee1c086ecec9acf Mon Sep 17 00:00:00 2001 +From: Shengjiu Wang <shengjiu.wang@freescale.com> +Date: Mon, 5 Jun 2017 11:37:57 +0800 +Subject: [PATCH] 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) +--- + Documentation/devicetree/bindings/dma/fsl-edma-v3.txt | 10 ++++++---- + 1 file changed, 6 insertions(+), 4 deletions(-) + +--- 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"; + }; |