| Message ID | 20250126-ppcyaml-v1-5-50649f51c3dd@posteo.net (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | YAML conversion of several Freescale/PowerPC DT bindings | expand |
On Sun, Jan 26, 2025 at 07:59:00PM +0100, J. Neuschäfer wrote: > 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 <j.ne@posteo.net> > --- > .../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 <j.ne@posteo.net> > + > +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 additionalProperties: false (The tools should have highlighted this) > + > + 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 You have to define how many interrupts and what they are. > + > +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 <j.ne@posteo.net> > + > +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@.*$": > + type: object additionalProperties: false > + > + properties: > + compatible: > + const: fsl,eloplus-dma-channel > + > + reg: > + maxItems: 1 > + > + interrupts: true You have to define how many interrupts. > + > +examples: > + - | > + dma@100300 { > + #address-cells = <1>; > + #size-cells = <1>; > + compatible = "fsl,elo3-dma"; > + reg = <0x100300 0x4>, > + <0x100600 0x4>; > + ranges = <0x0 0x100100 0x500>; > + dma-channel@0 { > + compatible = "fsl,eloplus-dma-channel"; > + reg = <0x0 0x80>; > + interrupts = <28 2 0 0>; > + }; > + dma-channel@80 { > + compatible = "fsl,eloplus-dma-channel"; > + reg = <0x80 0x80>; > + interrupts = <29 2 0 0>; > + }; > + dma-channel@100 { > + compatible = "fsl,eloplus-dma-channel"; > + reg = <0x100 0x80>; > + interrupts = <30 2 0 0>; > + }; > + dma-channel@180 { > + compatible = "fsl,eloplus-dma-channel"; > + reg = <0x180 0x80>; > + interrupts = <31 2 0 0>; > + }; > + dma-channel@300 { > + compatible = "fsl,eloplus-dma-channel"; > + reg = <0x300 0x80>; > + interrupts = <76 2 0 0>; > + }; > + dma-channel@380 { > + compatible = "fsl,eloplus-dma-channel"; > + reg = <0x380 0x80>; > + interrupts = <77 2 0 0>; > + }; > + dma-channel@400 { > + compatible = "fsl,eloplus-dma-channel"; > + reg = <0x400 0x80>; > + interrupts = <78 2 0 0>; > + }; > + dma-channel@480 { > + compatible = "fsl,eloplus-dma-channel"; > + reg = <0x480 0x80>; > + interrupts = <79 2 0 0>; > + }; > + }; > + > +additionalProperties: true > + > +... > diff --git a/Documentation/devicetree/bindings/dma/fsl,eloplus-dma.yaml b/Documentation/devicetree/bindings/dma/fsl,eloplus-dma.yaml > new file mode 100644 > index 0000000000000000000000000000000000000000..680d64332ddf4d6d68ee8c607ac71211a7e19e6e > --- /dev/null > +++ b/Documentation/devicetree/bindings/dma/fsl,eloplus-dma.yaml > @@ -0,0 +1,120 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$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 <j.ne@posteo.net> > + > +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 additionalProperties: false > + > + 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 How many? > + > +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 > + > +...
On Sun, Jan 26, 2025 at 07:59:00PM +0100, J. Neuschäfer wrote: > 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 <j.ne@posteo.net> > --- > .../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 <j.ne@posteo.net> > + > +description: | needn't | here > + 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 There are not 'fsl,eloplus-dma-channel' under "^dma-channel@.*$". I suggest remove this because 'compatible': items already show such information. > + 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>; compatible and reg should be first two property. > + ranges = <0 0x8100 0x1a4>; > + interrupt-parent = <&ipic>; > + interrupts = <71 8>; > + cell-index = <0>; need space line here. > + dma-channel@0 { > + compatible = "fsl,mpc8349-dma-channel", "fsl,elo-dma-channel"; > + cell-index = <0>; > + reg = <0 0x80>; > + interrupt-parent = <&ipic>; > + interrupts = <71 8>; > + }; need space line here. check other's example dts > + 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 <j.ne@posteo.net> > + > +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 <j.ne@posteo.net> > + > +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 I think you can merge this fsl,mpc83xx-dma yaml file +allOf: + - if: + properties: + compatible: + contains: + const: fsl,elo-dma + then: + patternProperties: + "^dma-channel@.*$": + properties: + compatible: + items: + - enum: .... + else + patternProperties: + "^dma-channel@.*$": + properties: + compatible: + items: + - enum: .... + - const: fsl,eloplus-dma-channel Frank > + > + 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. > > -- > 2.48.0.rc1.219.gb6b6757d772 >
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 <j.ne@posteo.net> + +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 <j.ne@posteo.net> + +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 <j.ne@posteo.net> + +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.