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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Peng Fan Convert the eDMA controller binding to DT schema. Signed-off-by: Peng Fan --- V3: Address Krzysztof's comments, for reg/interrupts/clock-names V2: Typo fix Correct interrupts/interrupt-names/AllOf .../devicetree/bindings/dma/fsl,edma.yaml | 155 ++++++++++++++++++ .../devicetree/bindings/dma/fsl-edma.txt | 111 ------------- arch/arm64/boot/dts/freescale/imx93.dtsi | 2 +- 3 files changed, 156 insertions(+), 112 deletions(-) create mode 100644 Documentation/devicetree/bindings/dma/fsl,edma.yaml delete mode 100644 Documentation/devicetree/bindings/dma/fsl-edma.txt diff --git a/Documentation/devicetree/bindings/dma/fsl,edma.yaml b/Documentation/devicetree/bindings/dma/fsl,edma.yaml new file mode 100644 index 000000000000..050e6cd57727 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/fsl,edma.yaml @@ -0,0 +1,155 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/dma/fsl,edma.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Freescale enhanced Direct Memory Access(eDMA) Controller + +description: | + The eDMA channels have multiplex capability by programmable + memory-mapped registers. channels are split into two groups, called + DMAMUX0 and DMAMUX1, specific DMA request source can only be multiplexed + by any channel of certain group, DMAMUX0 or DMAMUX1, but not both. + +maintainers: + - Peng Fan + +properties: + compatible: + oneOf: + - enum: + - fsl,vf610-edma + - fsl,imx7ulp-edma + - items: + - const: fsl,ls1028a-edma + - const: fsl,vf610-edma + + reg: + minItems: 2 + maxItems: 3 + + interrupts: + minItems: 2 + maxItems: 17 + + interrupt-names: + minItems: 2 + maxItems: 17 + + "#dma-cells": + const: 2 + + dma-channels: + const: 32 + + clocks: + maxItems: 2 + + clock-names: + maxItems: 2 + + big-endian: + description: | + If present registers and hardware scatter/gather descriptors of the + eDMA are implemented in big endian mode, otherwise in little mode. + type: boolean + +required: + - "#dma-cells" + - compatible + - reg + - interrupts + - clocks + - dma-channels + +allOf: + - $ref: "dma-controller.yaml#" + - if: + properties: + compatible: + contains: + const: fsl,vf610-edma + then: + properties: + clock-names: + items: + - const: dmamux0 + - const: dmamux1 + interrupts: + maxItems: 2 + interrupt-names: + items: + - const: edma-tx + - const: edma-err + reg: + maxItems: 3 + + - if: + properties: + compatible: + contains: + const: fsl,imx7ulp-edma + then: + properties: + clock-names: + items: + - const: dma + - const: dmamux0 + interrupts: + maxItems: 17 + reg: + maxItems: 2 + +unevaluatedProperties: false + +examples: + - | + #include + #include + + edma0: dma-controller@40018000 { + #dma-cells = <2>; + compatible = "fsl,vf610-edma"; + reg = <0x40018000 0x2000>, + <0x40024000 0x1000>, + <0x40025000 0x1000>; + interrupts = <0 8 IRQ_TYPE_LEVEL_HIGH>, + <0 9 IRQ_TYPE_LEVEL_HIGH>; + interrupt-names = "edma-tx", "edma-err"; + dma-channels = <32>; + clock-names = "dmamux0", "dmamux1"; + clocks = <&clks VF610_CLK_DMAMUX0>, <&clks VF610_CLK_DMAMUX1>; + }; + + - | + #include + #include + + edma1: dma-controller@40080000 { + #dma-cells = <2>; + compatible = "fsl,imx7ulp-edma"; + reg = <0x40080000 0x2000>, + <0x40210000 0x1000>; + dma-channels = <32>; + interrupts = , + , + , + , + , + , + , + , + , + , + , + , + , + , + , + , + /* last is eDMA2-ERR interrupt */ + ; + clock-names = "dma", "dmamux0"; + clocks = <&pcc2 IMX7ULP_CLK_DMA1>, <&pcc2 IMX7ULP_CLK_DMA_MUX1>; + }; diff --git a/Documentation/devicetree/bindings/dma/fsl-edma.txt b/Documentation/devicetree/bindings/dma/fsl-edma.txt deleted file mode 100644 index ee1754739b4b..000000000000 --- a/Documentation/devicetree/bindings/dma/fsl-edma.txt +++ /dev/null @@ -1,111 +0,0 @@ -* Freescale enhanced Direct Memory Access(eDMA) Controller - - The eDMA channels have multiplex capability by programmble memory-mapped -registers. channels are split into two groups, called DMAMUX0 and DMAMUX1, -specific DMA request source can only be multiplexed by any channel of certain -group, DMAMUX0 or DMAMUX1, but not both. - -* eDMA Controller -Required properties: -- compatible : - - "fsl,vf610-edma" for eDMA used similar to that on Vybrid vf610 SoC - - "fsl,imx7ulp-edma" for eDMA2 used similar to that on i.mx7ulp - - "fsl,ls1028a-edma" followed by "fsl,vf610-edma" for eDMA used on the - LS1028A SoC. -- reg : Specifies base physical address(s) and size of the eDMA registers. - The 1st region is eDMA control register's address and size. - The 2nd and the 3rd regions are programmable channel multiplexing - control register's address and size. -- interrupts : A list of interrupt-specifiers, one for each entry in - interrupt-names on vf610 similar SoC. But for i.mx7ulp per channel - per transmission interrupt, total 16 channel interrupt and 1 - error interrupt(located in the last), no interrupt-names list on - i.mx7ulp for clean on dts. -- #dma-cells : Must be <2>. - The 1st cell specifies the DMAMUX(0 for DMAMUX0 and 1 for DMAMUX1). - Specific request source can only be multiplexed by specific channels - group called DMAMUX. - The 2nd cell specifies the request source(slot) ID. - See the SoC's reference manual for all the supported request sources. -- dma-channels : Number of channels supported by the controller -- clock-names : A list of channel group clock names. Should contain: - "dmamux0" - clock name of mux0 group - "dmamux1" - clock name of mux1 group - Note: No dmamux0 on i.mx7ulp, but another 'dma' clk added on i.mx7ulp. -- clocks : A list of phandle and clock-specifier pairs, one for each entry in - clock-names. - -Optional properties: -- big-endian: If present registers and hardware scatter/gather descriptors - of the eDMA are implemented in big endian mode, otherwise in little - mode. -- interrupt-names : Should contain the below on vf610 similar SoC but not used - on i.mx7ulp similar SoC: - "edma-tx" - the transmission interrupt - "edma-err" - the error interrupt - - -Examples: - -edma0: dma-controller@40018000 { - #dma-cells = <2>; - compatible = "fsl,vf610-edma"; - reg = <0x40018000 0x2000>, - <0x40024000 0x1000>, - <0x40025000 0x1000>; - interrupts = <0 8 IRQ_TYPE_LEVEL_HIGH>, - <0 9 IRQ_TYPE_LEVEL_HIGH>; - interrupt-names = "edma-tx", "edma-err"; - dma-channels = <32>; - clock-names = "dmamux0", "dmamux1"; - clocks = <&clks VF610_CLK_DMAMUX0>, - <&clks VF610_CLK_DMAMUX1>; -}; /* vf610 */ - -edma1: dma-controller@40080000 { - #dma-cells = <2>; - compatible = "fsl,imx7ulp-edma"; - reg = <0x40080000 0x2000>, - <0x40210000 0x1000>; - dma-channels = <32>; - interrupts = , - , - , - , - , - , - , - , - , - , - , - , - , - , - , - , - /* last is eDMA2-ERR interrupt */ - ; - clock-names = "dma", "dmamux0"; - clocks = <&pcc2 IMX7ULP_CLK_DMA1>, - <&pcc2 IMX7ULP_CLK_DMA_MUX1>; -}; /* i.mx7ulp */ - -* DMA clients -DMA client drivers that uses the DMA function must use the format described -in the dma.txt file, using a two-cell specifier for each channel: the 1st -specifies the channel group(DMAMUX) in which this request can be multiplexed, -and the 2nd specifies the request source. - -Examples: - -sai2: sai@40031000 { - compatible = "fsl,vf610-sai"; - reg = <0x40031000 0x1000>; - interrupts = <0 86 IRQ_TYPE_LEVEL_HIGH>; - clock-names = "sai"; - clocks = <&clks VF610_CLK_SAI2>; - dma-names = "tx", "rx"; - dmas = <&edma0 0 21>, - <&edma0 0 20>; -}; diff --git a/arch/arm64/boot/dts/freescale/imx93.dtsi b/arch/arm64/boot/dts/freescale/imx93.dtsi index 493d4be710e7..25a1430fe5a9 100644 --- a/arch/arm64/boot/dts/freescale/imx93.dtsi +++ b/arch/arm64/boot/dts/freescale/imx93.dtsi @@ -349,7 +349,7 @@ gpio1: gpio@47400080 { gpio-ranges = <&iomuxc 0 0 32>; }; - media_blk_ctrl: power-controller@4ac10000 { + media_blk_ctrl: system-controller@4ac10000 { compatible = "fsl,imx93-media-blk-ctrl", "syscon"; reg = <0x4ac10000 0x10000>; power-domains = <&mediamix>; -- 2.25.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel