From patchwork Sun Jan 26 18:59:00 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?J=2E_Neusch=C3=A4fer_via_B4_Relay?= X-Patchwork-Id: 13950818 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 74FAA1662E9; Sun, 26 Jan 2025 18:59:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737917946; cv=none; b=f41fwcWuYggbw7JhmrxeEpheZrlguuksytMM9/mVVE2TfnqOlrudpyKGZtEjmpLx9bMVQnw7m9lrGrOE59yHDPszexcZsbQQNxea5I5ufNds8aZq+qtWZzN/F1WTPxxWnEpRRvA2s7IkP/38inmYwV61jGoimR9VBoDoAGVThtI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737917946; c=relaxed/simple; bh=cLp+xtgZFvwpkQ9rnhvVR1jYwT1rhxWjVeDmOsa9ZVE=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=rF29MHTczlPgoobwNLslmyTwvauOXcfbDgRmJKbTNh5YrOqR5Uhbr4L8zlnYOKXTsb3nx4T3DcuAA/71/xvDyEL5c9XYWnmreeAegNOivGLPz5Wi8c4cjelvYQSl+IlQ/QQebkHxUkvYuSFSoPkuVH+kbDlp6oOY2kb4s9BbPJ4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=dNrf36lj; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="dNrf36lj" Received: by smtp.kernel.org (Postfix) with ESMTPS id DCE18C4CEF8; Sun, 26 Jan 2025 18:59:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1737917945; bh=cLp+xtgZFvwpkQ9rnhvVR1jYwT1rhxWjVeDmOsa9ZVE=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=dNrf36ljJnRNMCWS+C0SkgbKvfKqrKWVcmL/lfG4Mn5cli7iS1qC0yoCe5CerL7Pu KICQQCoBwp/WJHPsV5pWCu989hAl/91aZeR4WPaoyzrUbV0eO04nWU3Zlbaj+aSfwF VDhUfMy6u6nbwAn7ncToaDFaE4EUD38NQmKxPK5w4JfdDDZWlWicGmYiX9iNZFq9ET F42PuvOI1nlufipNmvVxf43QDbe3ypAzB5Bz3iZ1QF/juTFDYTtYONUelCwTZy2ZXa wBM6wtk2xtmab0zmnJAJjOqguDU0cAuo7zWEJubikJy/tmf+jR0OEiGlEoZ65ECgL6 xGmcqCvvG7MMw== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id D3081C0218D; Sun, 26 Jan 2025 18:59:05 +0000 (UTC) From: =?utf-8?q?J=2E_Neusch=C3=A4fer_via_B4_Relay?= Date: Sun, 26 Jan 2025 19:59:00 +0100 Subject: [PATCH 5/9] dt-bindings: dma: Convert fsl,elo*-dma bindings to YAML Precedence: bulk X-Mailing-List: linux-crypto@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250126-ppcyaml-v1-5-50649f51c3dd@posteo.net> References: <20250126-ppcyaml-v1-0-50649f51c3dd@posteo.net> In-Reply-To: <20250126-ppcyaml-v1-0-50649f51c3dd@posteo.net> To: devicetree@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Cc: Scott Wood , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , Christophe Leroy , Naveen N Rao , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Damien Le Moal , Niklas Cassel , Herbert Xu , "David S. Miller" , Lee Jones , Vinod Koul , Lorenzo Pieralisi , =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= , Manivannan Sadhasivam , Bjorn Helgaas , =?utf-8?q?J=2E_Neusch=C3=A4fer?= , Wim Van Sebroeck , Guenter Roeck , Mark Brown , Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org, linux-crypto@vger.kernel.org, dmaengine@vger.kernel.org, linux-pci@vger.kernel.org, linux-watchdog@vger.kernel.org, linux-spi@vger.kernel.org, linux-mtd@lists.infradead.org, =?utf-8?q?J=2E_N?= =?utf-8?q?eusch=C3=A4fer?= X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1737917943; l=20040; i=j.ne@posteo.net; s=20240329; h=from:subject:message-id; bh=fj3a3m484wNQKzrVxwQR5GtW+5KXH8sXnuZSxUycDfc=; b=ut+9Pk3cplt6KMFWkvZBRlC9SBF8OywHoLptLfpelZGYyoaoKECXDJroqgKtYF792mTYezcUM jsxsmclRkYmA7Zfj2cE1eQlohV9Necb/R1qyowa/Zf4BswbQihrnPxz X-Developer-Key: i=j.ne@posteo.net; a=ed25519; pk=NIe0bK42wNaX/C4bi6ezm7NJK0IQE+8MKBm7igFMIS4= X-Endpoint-Received: by B4 Relay for j.ne@posteo.net/20240329 with auth_id=156 X-Original-From: =?utf-8?q?J=2E_Neusch=C3=A4fer?= Reply-To: j.ne@posteo.net From: "J. Neuschäfer" The devicetree bindings for Freescale DMA engines have so far existed as a text file. This patch converts them to YAML, and specifies all the compatible strings currently in use in arch/powerpc/boot/dts. Signed-off-by: J. Neuschäfer --- .../devicetree/bindings/dma/fsl,elo-dma.yaml | 129 +++++++++++++ .../devicetree/bindings/dma/fsl,elo3-dma.yaml | 105 +++++++++++ .../devicetree/bindings/dma/fsl,eloplus-dma.yaml | 120 ++++++++++++ .../devicetree/bindings/powerpc/fsl/dma.txt | 204 --------------------- 4 files changed, 354 insertions(+), 204 deletions(-) diff --git a/Documentation/devicetree/bindings/dma/fsl,elo-dma.yaml b/Documentation/devicetree/bindings/dma/fsl,elo-dma.yaml new file mode 100644 index 0000000000000000000000000000000000000000..d1f4978a672c1217c322c27f243470b2de8c99d4 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/fsl,elo-dma.yaml @@ -0,0 +1,129 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/dma/fsl,elo-dma.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Freescale Elo DMA Controller + +maintainers: + - J. Neuschäfer + +description: | + This is a little-endian 4-channel DMA controller, used in Freescale mpc83xx + series chips such as mpc8315, mpc8349, mpc8379 etc. + + Note on DMA channel compatible properties: The compatible property must say + "fsl,elo-dma-channel" or "fsl,eloplus-dma-channel" to be used by the Elo DMA + driver (fsldma). Any DMA channel used by fsldma cannot be used by another + DMA driver, such as the SSI sound drivers for the MPC8610. Therefore, any + DMA channel that should be used for another driver should not use + "fsl,elo-dma-channel" or "fsl,eloplus-dma-channel". For the SSI drivers, for + example, the compatible property should be "fsl,ssi-dma-channel". See + ssi.txt for more information. + +properties: + compatible: + items: + - enum: + - fsl,mpc8313-dma + - fsl,mpc8315-dma + - fsl,mpc8323-dma + - fsl,mpc8347-dma + - fsl,mpc8349-dma + - fsl,mpc8360-dma + - fsl,mpc8377-dma + - fsl,mpc8378-dma + - fsl,mpc8379-dma + - const: fsl,elo-dma + + reg: + maxItems: 1 + description: + DMA General Status Register, i.e. DGSR which contains status for + all the 4 DMA channels. + + ranges: true + + cell-index: + $ref: /schemas/types.yaml#/definitions/uint32 + description: Controller index. 0 for controller @ 0x8100. + + interrupts: + maxItems: 1 + +patternProperties: + "^dma-channel@.*$": + type: object + + properties: + compatible: + items: + - enum: + - fsl,mpc8315-dma-channel + - fsl,mpc8323-dma-channel + - fsl,mpc8347-dma-channel + - fsl,mpc8349-dma-channel + - fsl,mpc8360-dma-channel + - fsl,mpc8377-dma-channel + - fsl,mpc8378-dma-channel + - fsl,mpc8379-dma-channel + - const: fsl,elo-dma-channel + + reg: + maxItems: 1 + + cell-index: + description: DMA channel index starts at 0. + + interrupts: true + +required: + - compatible + - reg + - interrupts + +additionalProperties: true + +examples: + - | + dma@82a8 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "fsl,mpc8349-dma", "fsl,elo-dma"; + reg = <0x82a8 4>; + ranges = <0 0x8100 0x1a4>; + interrupt-parent = <&ipic>; + interrupts = <71 8>; + cell-index = <0>; + dma-channel@0 { + compatible = "fsl,mpc8349-dma-channel", "fsl,elo-dma-channel"; + cell-index = <0>; + reg = <0 0x80>; + interrupt-parent = <&ipic>; + interrupts = <71 8>; + }; + dma-channel@80 { + compatible = "fsl,mpc8349-dma-channel", "fsl,elo-dma-channel"; + cell-index = <1>; + reg = <0x80 0x80>; + interrupt-parent = <&ipic>; + interrupts = <71 8>; + }; + dma-channel@100 { + compatible = "fsl,mpc8349-dma-channel", "fsl,elo-dma-channel"; + cell-index = <2>; + reg = <0x100 0x80>; + interrupt-parent = <&ipic>; + interrupts = <71 8>; + }; + dma-channel@180 { + compatible = "fsl,mpc8349-dma-channel", "fsl,elo-dma-channel"; + cell-index = <3>; + reg = <0x180 0x80>; + interrupt-parent = <&ipic>; + interrupts = <71 8>; + }; + }; + +... diff --git a/Documentation/devicetree/bindings/dma/fsl,elo3-dma.yaml b/Documentation/devicetree/bindings/dma/fsl,elo3-dma.yaml new file mode 100644 index 0000000000000000000000000000000000000000..d4853ffd40dc75c7fcdc0dfb15e497ec56f3e1ba --- /dev/null +++ b/Documentation/devicetree/bindings/dma/fsl,elo3-dma.yaml @@ -0,0 +1,105 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/dma/fsl,elo3-dma.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Freescale Elo3 DMA Controller + +maintainers: + - J. Neuschäfer + +description: | + DMA controller which has same function as EloPlus except that Elo3 has 8 + channels while EloPlus has only 4, it is used in Freescale Txxx and Bxxx + series chips, such as t1040, t4240, b4860. + + Note on DMA channel compatible properties: The compatible property must say + "fsl,elo-dma-channel" or "fsl,eloplus-dma-channel" to be used by the Elo DMA + driver (fsldma). Any DMA channel used by fsldma cannot be used by another + DMA driver, such as the SSI sound drivers for the MPC8610. Therefore, any DMA + channel that should be used for another driver should not use + "fsl,elo-dma-channel" or "fsl,eloplus-dma-channel". For the SSI drivers, for + example, the compatible property should be "fsl,ssi-dma-channel". See ssi.txt + for more information. + +properties: + compatible: + const: fsl,elo3-dma + + reg: + maxItems: 2 + description: | + contains two entries for DMA General Status Registers, i.e. DGSR0 which + includes status for channel 1~4, and DGSR1 for channel 5~8 + + interrupts: + maxItems: 1 + +patternProperties: + "^dma-channel@.*$": + type: object + + properties: + compatible: + const: fsl,eloplus-dma-channel + + reg: + maxItems: 1 + + interrupts: true + +examples: + - | + dma@100300 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "fsl,elo3-dma"; + reg = <0x100300 0x4>, + <0x100600 0x4>; + ranges = <0x0 0x100100 0x500>; + dma-channel@0 { + compatible = "fsl,eloplus-dma-channel"; + reg = <0x0 0x80>; + interrupts = <28 2 0 0>; + }; + dma-channel@80 { + compatible = "fsl,eloplus-dma-channel"; + reg = <0x80 0x80>; + interrupts = <29 2 0 0>; + }; + dma-channel@100 { + compatible = "fsl,eloplus-dma-channel"; + reg = <0x100 0x80>; + interrupts = <30 2 0 0>; + }; + dma-channel@180 { + compatible = "fsl,eloplus-dma-channel"; + reg = <0x180 0x80>; + interrupts = <31 2 0 0>; + }; + dma-channel@300 { + compatible = "fsl,eloplus-dma-channel"; + reg = <0x300 0x80>; + interrupts = <76 2 0 0>; + }; + dma-channel@380 { + compatible = "fsl,eloplus-dma-channel"; + reg = <0x380 0x80>; + interrupts = <77 2 0 0>; + }; + dma-channel@400 { + compatible = "fsl,eloplus-dma-channel"; + reg = <0x400 0x80>; + interrupts = <78 2 0 0>; + }; + dma-channel@480 { + compatible = "fsl,eloplus-dma-channel"; + reg = <0x480 0x80>; + interrupts = <79 2 0 0>; + }; + }; + +additionalProperties: true + +... diff --git a/Documentation/devicetree/bindings/dma/fsl,eloplus-dma.yaml b/Documentation/devicetree/bindings/dma/fsl,eloplus-dma.yaml new file mode 100644 index 0000000000000000000000000000000000000000..680d64332ddf4d6d68ee8c607ac71211a7e19e6e --- /dev/null +++ b/Documentation/devicetree/bindings/dma/fsl,eloplus-dma.yaml @@ -0,0 +1,120 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/dma/fsl,eloplus-dma.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Freescale EloPlus DMA Controller + +maintainers: + - J. Neuschäfer + +description: | + This is a 4-channel DMA controller with extended addresses and chaining, + mainly used in Freescale mpc85xx/86xx, Pxxx and BSC series chips, such as + mpc8540, mpc8641 p4080, bsc9131 etc. + + Note on DMA channel compatible properties: The compatible property must say + "fsl,elo-dma-channel" or "fsl,eloplus-dma-channel" to be used by the Elo DMA + driver (fsldma). Any DMA channel used by fsldma cannot be used by another + DMA driver, such as the SSI sound drivers for the MPC8610. Therefore, any DMA + channel that should be used for another driver should not use + "fsl,elo-dma-channel" or "fsl,eloplus-dma-channel". For the SSI drivers, for + example, the compatible property should be "fsl,ssi-dma-channel". See ssi.txt + for more information. + +properties: + compatible: + oneOf: + - items: + - enum: + - fsl,mpc8540-dma + - fsl,mpc8541-dma + - fsl,mpc8548-dma + - fsl,mpc8555-dma + - fsl,mpc8560-dma + - fsl,mpc8572-dma + - fsl,mpc8641-dma + - const: fsl,eloplus-dma + - const: fsl,eloplus-dma + + reg: + maxItems: 1 + description: + DMA General Status Register, i.e. DGSR which contains + status for all the 4 DMA channels + + cell-index: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + controller index. 0 for controller @ 0x21000, 1 for controller @ 0xc000 + + interrupts: + maxItems: 1 + +patternProperties: + "^dma-channel@.*$": + type: object + + properties: + compatible: + items: + - enum: + - fsl,mpc8540-dma-channel + - fsl,mpc8541-dma-channel + - fsl,mpc8548-dma-channel + - fsl,mpc8555-dma-channel + - fsl,mpc8560-dma-channel + - fsl,mpc8572-dma-channel + - const: fsl,eloplus-dma-channel + + reg: + maxItems: 1 + + cell-index: + description: DMA channel index starts at 0. + + interrupts: true + +examples: + - | + dma@21300 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "fsl,mpc8540-dma", "fsl,eloplus-dma"; + reg = <0x21300 4>; + ranges = <0 0x21100 0x200>; + cell-index = <0>; + dma-channel@0 { + compatible = "fsl,mpc8540-dma-channel", "fsl,eloplus-dma-channel"; + reg = <0 0x80>; + cell-index = <0>; + interrupt-parent = <&mpic>; + interrupts = <20 2>; + }; + dma-channel@80 { + compatible = "fsl,mpc8540-dma-channel", "fsl,eloplus-dma-channel"; + reg = <0x80 0x80>; + cell-index = <1>; + interrupt-parent = <&mpic>; + interrupts = <21 2>; + }; + dma-channel@100 { + compatible = "fsl,mpc8540-dma-channel", "fsl,eloplus-dma-channel"; + reg = <0x100 0x80>; + cell-index = <2>; + interrupt-parent = <&mpic>; + interrupts = <22 2>; + }; + dma-channel@180 { + compatible = "fsl,mpc8540-dma-channel", "fsl,eloplus-dma-channel"; + reg = <0x180 0x80>; + cell-index = <3>; + interrupt-parent = <&mpic>; + interrupts = <23 2>; + }; + }; + +additionalProperties: true + +... diff --git a/Documentation/devicetree/bindings/powerpc/fsl/dma.txt b/Documentation/devicetree/bindings/powerpc/fsl/dma.txt deleted file mode 100644 index c11ad5c6db2190bf38c160632d9997122e169945..0000000000000000000000000000000000000000 --- a/Documentation/devicetree/bindings/powerpc/fsl/dma.txt +++ /dev/null @@ -1,204 +0,0 @@ -* Freescale DMA Controllers - -** Freescale Elo DMA Controller - This is a little-endian 4-channel DMA controller, used in Freescale mpc83xx - series chips such as mpc8315, mpc8349, mpc8379 etc. - -Required properties: - -- compatible : must include "fsl,elo-dma" -- reg : DMA General Status Register, i.e. DGSR which contains - status for all the 4 DMA channels -- ranges : describes the mapping between the address space of the - DMA channels and the address space of the DMA controller -- cell-index : controller index. 0 for controller @ 0x8100 -- interrupts : interrupt specifier for DMA IRQ - -- DMA channel nodes: - - compatible : must include "fsl,elo-dma-channel" - However, see note below. - - reg : DMA channel specific registers - - cell-index : DMA channel index starts at 0. - -Optional properties: - - interrupts : interrupt specifier for DMA channel IRQ - (on 83xx this is expected to be identical to - the interrupts property of the parent node) - -Example: - dma@82a8 { - #address-cells = <1>; - #size-cells = <1>; - compatible = "fsl,mpc8349-dma", "fsl,elo-dma"; - reg = <0x82a8 4>; - ranges = <0 0x8100 0x1a4>; - interrupt-parent = <&ipic>; - interrupts = <71 8>; - cell-index = <0>; - dma-channel@0 { - compatible = "fsl,mpc8349-dma-channel", "fsl,elo-dma-channel"; - cell-index = <0>; - reg = <0 0x80>; - interrupt-parent = <&ipic>; - interrupts = <71 8>; - }; - dma-channel@80 { - compatible = "fsl,mpc8349-dma-channel", "fsl,elo-dma-channel"; - cell-index = <1>; - reg = <0x80 0x80>; - interrupt-parent = <&ipic>; - interrupts = <71 8>; - }; - dma-channel@100 { - compatible = "fsl,mpc8349-dma-channel", "fsl,elo-dma-channel"; - cell-index = <2>; - reg = <0x100 0x80>; - interrupt-parent = <&ipic>; - interrupts = <71 8>; - }; - dma-channel@180 { - compatible = "fsl,mpc8349-dma-channel", "fsl,elo-dma-channel"; - cell-index = <3>; - reg = <0x180 0x80>; - interrupt-parent = <&ipic>; - interrupts = <71 8>; - }; - }; - -** Freescale EloPlus DMA Controller - This is a 4-channel DMA controller with extended addresses and chaining, - mainly used in Freescale mpc85xx/86xx, Pxxx and BSC series chips, such as - mpc8540, mpc8641 p4080, bsc9131 etc. - -Required properties: - -- compatible : must include "fsl,eloplus-dma" -- reg : DMA General Status Register, i.e. DGSR which contains - status for all the 4 DMA channels -- cell-index : controller index. 0 for controller @ 0x21000, - 1 for controller @ 0xc000 -- ranges : describes the mapping between the address space of the - DMA channels and the address space of the DMA controller - -- DMA channel nodes: - - compatible : must include "fsl,eloplus-dma-channel" - However, see note below. - - cell-index : DMA channel index starts at 0. - - reg : DMA channel specific registers - - interrupts : interrupt specifier for DMA channel IRQ - -Example: - dma@21300 { - #address-cells = <1>; - #size-cells = <1>; - compatible = "fsl,mpc8540-dma", "fsl,eloplus-dma"; - reg = <0x21300 4>; - ranges = <0 0x21100 0x200>; - cell-index = <0>; - dma-channel@0 { - compatible = "fsl,mpc8540-dma-channel", "fsl,eloplus-dma-channel"; - reg = <0 0x80>; - cell-index = <0>; - interrupt-parent = <&mpic>; - interrupts = <20 2>; - }; - dma-channel@80 { - compatible = "fsl,mpc8540-dma-channel", "fsl,eloplus-dma-channel"; - reg = <0x80 0x80>; - cell-index = <1>; - interrupt-parent = <&mpic>; - interrupts = <21 2>; - }; - dma-channel@100 { - compatible = "fsl,mpc8540-dma-channel", "fsl,eloplus-dma-channel"; - reg = <0x100 0x80>; - cell-index = <2>; - interrupt-parent = <&mpic>; - interrupts = <22 2>; - }; - dma-channel@180 { - compatible = "fsl,mpc8540-dma-channel", "fsl,eloplus-dma-channel"; - reg = <0x180 0x80>; - cell-index = <3>; - interrupt-parent = <&mpic>; - interrupts = <23 2>; - }; - }; - -** Freescale Elo3 DMA Controller - DMA controller which has same function as EloPlus except that Elo3 has 8 - channels while EloPlus has only 4, it is used in Freescale Txxx and Bxxx - series chips, such as t1040, t4240, b4860. - -Required properties: - -- compatible : must include "fsl,elo3-dma" -- reg : contains two entries for DMA General Status Registers, - i.e. DGSR0 which includes status for channel 1~4, and - DGSR1 for channel 5~8 -- ranges : describes the mapping between the address space of the - DMA channels and the address space of the DMA controller - -- DMA channel nodes: - - compatible : must include "fsl,eloplus-dma-channel" - - reg : DMA channel specific registers - - interrupts : interrupt specifier for DMA channel IRQ - -Example: -dma@100300 { - #address-cells = <1>; - #size-cells = <1>; - compatible = "fsl,elo3-dma"; - reg = <0x100300 0x4>, - <0x100600 0x4>; - ranges = <0x0 0x100100 0x500>; - dma-channel@0 { - compatible = "fsl,eloplus-dma-channel"; - reg = <0x0 0x80>; - interrupts = <28 2 0 0>; - }; - dma-channel@80 { - compatible = "fsl,eloplus-dma-channel"; - reg = <0x80 0x80>; - interrupts = <29 2 0 0>; - }; - dma-channel@100 { - compatible = "fsl,eloplus-dma-channel"; - reg = <0x100 0x80>; - interrupts = <30 2 0 0>; - }; - dma-channel@180 { - compatible = "fsl,eloplus-dma-channel"; - reg = <0x180 0x80>; - interrupts = <31 2 0 0>; - }; - dma-channel@300 { - compatible = "fsl,eloplus-dma-channel"; - reg = <0x300 0x80>; - interrupts = <76 2 0 0>; - }; - dma-channel@380 { - compatible = "fsl,eloplus-dma-channel"; - reg = <0x380 0x80>; - interrupts = <77 2 0 0>; - }; - dma-channel@400 { - compatible = "fsl,eloplus-dma-channel"; - reg = <0x400 0x80>; - interrupts = <78 2 0 0>; - }; - dma-channel@480 { - compatible = "fsl,eloplus-dma-channel"; - reg = <0x480 0x80>; - interrupts = <79 2 0 0>; - }; -}; - -Note on DMA channel compatible properties: The compatible property must say -"fsl,elo-dma-channel" or "fsl,eloplus-dma-channel" to be used by the Elo DMA -driver (fsldma). Any DMA channel used by fsldma cannot be used by another -DMA driver, such as the SSI sound drivers for the MPC8610. Therefore, any DMA -channel that should be used for another driver should not use -"fsl,elo-dma-channel" or "fsl,eloplus-dma-channel". For the SSI drivers, for -example, the compatible property should be "fsl,ssi-dma-channel". See ssi.txt -for more information.