Patchwork [v11,2/3] DMA: Freescale: Add new 8-channel DMA engine device tree nodes

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Submitter Hongbo Zhang
Date Sept. 26, 2013, 9:33 a.m.
Message ID <1380188023-3936-3-git-send-email-hongbo.zhang@freescale.com>
Download mbox | patch
Permalink /patch/278142/
State Not Applicable
Delegated to: Scott Wood
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Hongbo Zhang - Sept. 26, 2013, 9:33 a.m.
From: Hongbo Zhang <hongbo.zhang@freescale.com>

Freescale QorIQ T4 and B4 introduce new 8-channel DMA engines, this patch adds
the device tree nodes for them.

Signed-off-by: Hongbo Zhang <hongbo.zhang@freescale.com>
---
 .../devicetree/bindings/powerpc/fsl/dma.txt        |   70 +++++++++++++++++
 arch/powerpc/boot/dts/fsl/b4si-post.dtsi           |    4 +-
 arch/powerpc/boot/dts/fsl/elo3-dma-0.dtsi          |   82 ++++++++++++++++++++
 arch/powerpc/boot/dts/fsl/elo3-dma-1.dtsi          |   82 ++++++++++++++++++++
 arch/powerpc/boot/dts/fsl/t4240si-post.dtsi        |    4 +-
 5 files changed, 238 insertions(+), 4 deletions(-)
 create mode 100644 arch/powerpc/boot/dts/fsl/elo3-dma-0.dtsi
 create mode 100644 arch/powerpc/boot/dts/fsl/elo3-dma-1.dtsi
Hongbo Zhang - Oct. 8, 2013, 3:22 a.m.
Hi Mark, Stephen and other DT maintainers?

The 1/3 had already been acked by Mark, and please have a further look 
at this patch 2/3.
The DMA maintainer Vinod  needs ack for the DT related patches so that 
he can take all this patch set.

On 09/26/2013 05:33 PM, hongbo.zhang@freescale.com wrote:
> From: Hongbo Zhang <hongbo.zhang@freescale.com>
>
> Freescale QorIQ T4 and B4 introduce new 8-channel DMA engines, this patch adds
> the device tree nodes for them.
>
> Signed-off-by: Hongbo Zhang <hongbo.zhang@freescale.com>
> ---
>   .../devicetree/bindings/powerpc/fsl/dma.txt        |   70 +++++++++++++++++
>   arch/powerpc/boot/dts/fsl/b4si-post.dtsi           |    4 +-
>   arch/powerpc/boot/dts/fsl/elo3-dma-0.dtsi          |   82 ++++++++++++++++++++
>   arch/powerpc/boot/dts/fsl/elo3-dma-1.dtsi          |   82 ++++++++++++++++++++
>   arch/powerpc/boot/dts/fsl/t4240si-post.dtsi        |    4 +-
>   5 files changed, 238 insertions(+), 4 deletions(-)
>   create mode 100644 arch/powerpc/boot/dts/fsl/elo3-dma-0.dtsi
>   create mode 100644 arch/powerpc/boot/dts/fsl/elo3-dma-1.dtsi
>
> diff --git a/Documentation/devicetree/bindings/powerpc/fsl/dma.txt b/Documentation/devicetree/bindings/powerpc/fsl/dma.txt
> index 0584168..7fc1b01 100644
> --- a/Documentation/devicetree/bindings/powerpc/fsl/dma.txt
> +++ b/Documentation/devicetree/bindings/powerpc/fsl/dma.txt
> @@ -128,6 +128,76 @@ Example:
>   		};
>   	};
>   
> +** 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
> +        - interrupt-parent  : optional, if needed for interrupt mapping
> +
> +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
> diff --git a/arch/powerpc/boot/dts/fsl/b4si-post.dtsi b/arch/powerpc/boot/dts/fsl/b4si-post.dtsi
> index 7399154..ea53ea1 100644
> --- a/arch/powerpc/boot/dts/fsl/b4si-post.dtsi
> +++ b/arch/powerpc/boot/dts/fsl/b4si-post.dtsi
> @@ -223,13 +223,13 @@
>   		reg = <0xe2000 0x1000>;
>   	};
>   
> -/include/ "qoriq-dma-0.dtsi"
> +/include/ "elo3-dma-0.dtsi"
>   	dma@100300 {
>   		fsl,iommu-parent = <&pamu0>;
>   		fsl,liodn-reg = <&guts 0x580>; /* DMA1LIODNR */
>   	};
>   
> -/include/ "qoriq-dma-1.dtsi"
> +/include/ "elo3-dma-1.dtsi"
>   	dma@101300 {
>   		fsl,iommu-parent = <&pamu0>;
>   		fsl,liodn-reg = <&guts 0x584>; /* DMA2LIODNR */
> diff --git a/arch/powerpc/boot/dts/fsl/elo3-dma-0.dtsi b/arch/powerpc/boot/dts/fsl/elo3-dma-0.dtsi
> new file mode 100644
> index 0000000..3c210e0
> --- /dev/null
> +++ b/arch/powerpc/boot/dts/fsl/elo3-dma-0.dtsi
> @@ -0,0 +1,82 @@
> +/*
> + * QorIQ Elo3 DMA device tree stub [ controller @ offset 0x100000 ]
> + *
> + * Copyright 2013 Freescale Semiconductor Inc.
> + *
> + * Redistribution and use in source and binary forms, with or without
> + * modification, are permitted provided that the following conditions are met:
> + *     * Redistributions of source code must retain the above copyright
> + *       notice, this list of conditions and the following disclaimer.
> + *     * Redistributions in binary form must reproduce the above copyright
> + *       notice, this list of conditions and the following disclaimer in the
> + *       documentation and/or other materials provided with the distribution.
> + *     * Neither the name of Freescale Semiconductor nor the
> + *       names of its contributors may be used to endorse or promote products
> + *       derived from this software without specific prior written permission.
> + *
> + *
> + * ALTERNATIVELY, this software may be distributed under the terms of the
> + * GNU General Public License ("GPL") as published by the Free Software
> + * Foundation, either version 2 of that License or (at your option) any
> + * later version.
> + *
> + * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
> + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
> + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
> + * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
> + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
> + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
> + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
> + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
> + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
> + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
> + */
> +
> +dma0: 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>;
> +	};
> +};
> diff --git a/arch/powerpc/boot/dts/fsl/elo3-dma-1.dtsi b/arch/powerpc/boot/dts/fsl/elo3-dma-1.dtsi
> new file mode 100644
> index 0000000..cccf3bb
> --- /dev/null
> +++ b/arch/powerpc/boot/dts/fsl/elo3-dma-1.dtsi
> @@ -0,0 +1,82 @@
> +/*
> + * QorIQ Elo3 DMA device tree stub [ controller @ offset 0x101000 ]
> + *
> + * Copyright 2013 Freescale Semiconductor Inc.
> + *
> + * Redistribution and use in source and binary forms, with or without
> + * modification, are permitted provided that the following conditions are met:
> + *     * Redistributions of source code must retain the above copyright
> + *       notice, this list of conditions and the following disclaimer.
> + *     * Redistributions in binary form must reproduce the above copyright
> + *       notice, this list of conditions and the following disclaimer in the
> + *       documentation and/or other materials provided with the distribution.
> + *     * Neither the name of Freescale Semiconductor nor the
> + *       names of its contributors may be used to endorse or promote products
> + *       derived from this software without specific prior written permission.
> + *
> + *
> + * ALTERNATIVELY, this software may be distributed under the terms of the
> + * GNU General Public License ("GPL") as published by the Free Software
> + * Foundation, either version 2 of that License or (at your option) any
> + * later version.
> + *
> + * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
> + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
> + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
> + * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
> + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
> + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
> + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
> + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
> + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
> + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
> + */
> +
> +dma1: dma@101300 {
> +	#address-cells = <1>;
> +	#size-cells = <1>;
> +	compatible = "fsl,elo3-dma";
> +	reg = <0x101300 0x4>,
> +	      <0x101600 0x4>;
> +	ranges = <0x0 0x101100 0x500>;
> +	dma-channel@0 {
> +		compatible = "fsl,eloplus-dma-channel";
> +		reg = <0x0 0x80>;
> +		interrupts = <32 2 0 0>;
> +	};
> +	dma-channel@80 {
> +		compatible = "fsl,eloplus-dma-channel";
> +		reg = <0x80 0x80>;
> +		interrupts = <33 2 0 0>;
> +	};
> +	dma-channel@100 {
> +		compatible = "fsl,eloplus-dma-channel";
> +		reg = <0x100 0x80>;
> +		interrupts = <34 2 0 0>;
> +	};
> +	dma-channel@180 {
> +		compatible = "fsl,eloplus-dma-channel";
> +		reg = <0x180 0x80>;
> +		interrupts = <35 2 0 0>;
> +	};
> +	dma-channel@300 {
> +		compatible = "fsl,eloplus-dma-channel";
> +		reg = <0x300 0x80>;
> +		interrupts = <80 2 0 0>;
> +	};
> +	dma-channel@380 {
> +		compatible = "fsl,eloplus-dma-channel";
> +		reg = <0x380 0x80>;
> +		interrupts = <81 2 0 0>;
> +	};
> +	dma-channel@400 {
> +		compatible = "fsl,eloplus-dma-channel";
> +		reg = <0x400 0x80>;
> +		interrupts = <82 2 0 0>;
> +	};
> +	dma-channel@480 {
> +		compatible = "fsl,eloplus-dma-channel";
> +		reg = <0x480 0x80>;
> +		interrupts = <83 2 0 0>;
> +	};
> +};
> diff --git a/arch/powerpc/boot/dts/fsl/t4240si-post.dtsi b/arch/powerpc/boot/dts/fsl/t4240si-post.dtsi
> index bd611a9..ec95c60 100644
> --- a/arch/powerpc/boot/dts/fsl/t4240si-post.dtsi
> +++ b/arch/powerpc/boot/dts/fsl/t4240si-post.dtsi
> @@ -387,8 +387,8 @@
>   		reg	   = <0xea000 0x4000>;
>   	};
>   
> -/include/ "qoriq-dma-0.dtsi"
> -/include/ "qoriq-dma-1.dtsi"
> +/include/ "elo3-dma-0.dtsi"
> +/include/ "elo3-dma-1.dtsi"
>   
>   /include/ "qoriq-espi-0.dtsi"
>   	spi@110000 {
Mark Rutland - Oct. 15, 2013, 1:38 p.m.
On Tue, Oct 08, 2013 at 04:22:07AM +0100, Hongbo Zhang wrote:
> Hi Mark, Stephen and other DT maintainers?
> 
> The 1/3 had already been acked by Mark, and please have a further look
> at this patch 2/3.
> The DMA maintainer Vinod  needs ack for the DT related patches so that
> he can take all this patch set.

Sorry for the delay.

This looks ok to me.

Acked-by: Mark Rutland <mark.rutland@arm.com>

> 
> On 09/26/2013 05:33 PM, hongbo.zhang@freescale.com wrote:
> > From: Hongbo Zhang <hongbo.zhang@freescale.com>
> >
> > Freescale QorIQ T4 and B4 introduce new 8-channel DMA engines, this patch adds
> > the device tree nodes for them.
> >
> > Signed-off-by: Hongbo Zhang <hongbo.zhang@freescale.com>
> > ---
> >   .../devicetree/bindings/powerpc/fsl/dma.txt        |   70 +++++++++++++++++
> >   arch/powerpc/boot/dts/fsl/b4si-post.dtsi           |    4 +-
> >   arch/powerpc/boot/dts/fsl/elo3-dma-0.dtsi          |   82 ++++++++++++++++++++
> >   arch/powerpc/boot/dts/fsl/elo3-dma-1.dtsi          |   82 ++++++++++++++++++++
> >   arch/powerpc/boot/dts/fsl/t4240si-post.dtsi        |    4 +-
> >   5 files changed, 238 insertions(+), 4 deletions(-)
> >   create mode 100644 arch/powerpc/boot/dts/fsl/elo3-dma-0.dtsi
> >   create mode 100644 arch/powerpc/boot/dts/fsl/elo3-dma-1.dtsi
> >
> > diff --git a/Documentation/devicetree/bindings/powerpc/fsl/dma.txt b/Documentation/devicetree/bindings/powerpc/fsl/dma.txt
> > index 0584168..7fc1b01 100644
> > --- a/Documentation/devicetree/bindings/powerpc/fsl/dma.txt
> > +++ b/Documentation/devicetree/bindings/powerpc/fsl/dma.txt
> > @@ -128,6 +128,76 @@ Example:
> >               };
> >       };
> >
> > +** 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
> > +        - interrupt-parent  : optional, if needed for interrupt mapping
> > +
> > +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
> > diff --git a/arch/powerpc/boot/dts/fsl/b4si-post.dtsi b/arch/powerpc/boot/dts/fsl/b4si-post.dtsi
> > index 7399154..ea53ea1 100644
> > --- a/arch/powerpc/boot/dts/fsl/b4si-post.dtsi
> > +++ b/arch/powerpc/boot/dts/fsl/b4si-post.dtsi
> > @@ -223,13 +223,13 @@
> >               reg = <0xe2000 0x1000>;
> >       };
> >
> > -/include/ "qoriq-dma-0.dtsi"
> > +/include/ "elo3-dma-0.dtsi"
> >       dma@100300 {
> >               fsl,iommu-parent = <&pamu0>;
> >               fsl,liodn-reg = <&guts 0x580>; /* DMA1LIODNR */
> >       };
> >
> > -/include/ "qoriq-dma-1.dtsi"
> > +/include/ "elo3-dma-1.dtsi"
> >       dma@101300 {
> >               fsl,iommu-parent = <&pamu0>;
> >               fsl,liodn-reg = <&guts 0x584>; /* DMA2LIODNR */
> > diff --git a/arch/powerpc/boot/dts/fsl/elo3-dma-0.dtsi b/arch/powerpc/boot/dts/fsl/elo3-dma-0.dtsi
> > new file mode 100644
> > index 0000000..3c210e0
> > --- /dev/null
> > +++ b/arch/powerpc/boot/dts/fsl/elo3-dma-0.dtsi
> > @@ -0,0 +1,82 @@
> > +/*
> > + * QorIQ Elo3 DMA device tree stub [ controller @ offset 0x100000 ]
> > + *
> > + * Copyright 2013 Freescale Semiconductor Inc.
> > + *
> > + * Redistribution and use in source and binary forms, with or without
> > + * modification, are permitted provided that the following conditions are met:
> > + *     * Redistributions of source code must retain the above copyright
> > + *       notice, this list of conditions and the following disclaimer.
> > + *     * Redistributions in binary form must reproduce the above copyright
> > + *       notice, this list of conditions and the following disclaimer in the
> > + *       documentation and/or other materials provided with the distribution.
> > + *     * Neither the name of Freescale Semiconductor nor the
> > + *       names of its contributors may be used to endorse or promote products
> > + *       derived from this software without specific prior written permission.
> > + *
> > + *
> > + * ALTERNATIVELY, this software may be distributed under the terms of the
> > + * GNU General Public License ("GPL") as published by the Free Software
> > + * Foundation, either version 2 of that License or (at your option) any
> > + * later version.
> > + *
> > + * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
> > + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
> > + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
> > + * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
> > + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
> > + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
> > + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
> > + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
> > + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
> > + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
> > + */
> > +
> > +dma0: 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>;
> > +     };
> > +};
> > diff --git a/arch/powerpc/boot/dts/fsl/elo3-dma-1.dtsi b/arch/powerpc/boot/dts/fsl/elo3-dma-1.dtsi
> > new file mode 100644
> > index 0000000..cccf3bb
> > --- /dev/null
> > +++ b/arch/powerpc/boot/dts/fsl/elo3-dma-1.dtsi
> > @@ -0,0 +1,82 @@
> > +/*
> > + * QorIQ Elo3 DMA device tree stub [ controller @ offset 0x101000 ]
> > + *
> > + * Copyright 2013 Freescale Semiconductor Inc.
> > + *
> > + * Redistribution and use in source and binary forms, with or without
> > + * modification, are permitted provided that the following conditions are met:
> > + *     * Redistributions of source code must retain the above copyright
> > + *       notice, this list of conditions and the following disclaimer.
> > + *     * Redistributions in binary form must reproduce the above copyright
> > + *       notice, this list of conditions and the following disclaimer in the
> > + *       documentation and/or other materials provided with the distribution.
> > + *     * Neither the name of Freescale Semiconductor nor the
> > + *       names of its contributors may be used to endorse or promote products
> > + *       derived from this software without specific prior written permission.
> > + *
> > + *
> > + * ALTERNATIVELY, this software may be distributed under the terms of the
> > + * GNU General Public License ("GPL") as published by the Free Software
> > + * Foundation, either version 2 of that License or (at your option) any
> > + * later version.
> > + *
> > + * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
> > + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
> > + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
> > + * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
> > + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
> > + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
> > + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
> > + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
> > + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
> > + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
> > + */
> > +
> > +dma1: dma@101300 {
> > +     #address-cells = <1>;
> > +     #size-cells = <1>;
> > +     compatible = "fsl,elo3-dma";
> > +     reg = <0x101300 0x4>,
> > +           <0x101600 0x4>;
> > +     ranges = <0x0 0x101100 0x500>;
> > +     dma-channel@0 {
> > +             compatible = "fsl,eloplus-dma-channel";
> > +             reg = <0x0 0x80>;
> > +             interrupts = <32 2 0 0>;
> > +     };
> > +     dma-channel@80 {
> > +             compatible = "fsl,eloplus-dma-channel";
> > +             reg = <0x80 0x80>;
> > +             interrupts = <33 2 0 0>;
> > +     };
> > +     dma-channel@100 {
> > +             compatible = "fsl,eloplus-dma-channel";
> > +             reg = <0x100 0x80>;
> > +             interrupts = <34 2 0 0>;
> > +     };
> > +     dma-channel@180 {
> > +             compatible = "fsl,eloplus-dma-channel";
> > +             reg = <0x180 0x80>;
> > +             interrupts = <35 2 0 0>;
> > +     };
> > +     dma-channel@300 {
> > +             compatible = "fsl,eloplus-dma-channel";
> > +             reg = <0x300 0x80>;
> > +             interrupts = <80 2 0 0>;
> > +     };
> > +     dma-channel@380 {
> > +             compatible = "fsl,eloplus-dma-channel";
> > +             reg = <0x380 0x80>;
> > +             interrupts = <81 2 0 0>;
> > +     };
> > +     dma-channel@400 {
> > +             compatible = "fsl,eloplus-dma-channel";
> > +             reg = <0x400 0x80>;
> > +             interrupts = <82 2 0 0>;
> > +     };
> > +     dma-channel@480 {
> > +             compatible = "fsl,eloplus-dma-channel";
> > +             reg = <0x480 0x80>;
> > +             interrupts = <83 2 0 0>;
> > +     };
> > +};
> > diff --git a/arch/powerpc/boot/dts/fsl/t4240si-post.dtsi b/arch/powerpc/boot/dts/fsl/t4240si-post.dtsi
> > index bd611a9..ec95c60 100644
> > --- a/arch/powerpc/boot/dts/fsl/t4240si-post.dtsi
> > +++ b/arch/powerpc/boot/dts/fsl/t4240si-post.dtsi
> > @@ -387,8 +387,8 @@
> >               reg        = <0xea000 0x4000>;
> >       };
> >
> > -/include/ "qoriq-dma-0.dtsi"
> > -/include/ "qoriq-dma-1.dtsi"
> > +/include/ "elo3-dma-0.dtsi"
> > +/include/ "elo3-dma-1.dtsi"
> >
> >   /include/ "qoriq-espi-0.dtsi"
> >       spi@110000 {
> 
> 
> 
>
Hongbo Zhang - Oct. 16, 2013, 1:59 a.m.
On 10/15/2013 09:38 PM, Mark Rutland wrote:
> On Tue, Oct 08, 2013 at 04:22:07AM +0100, Hongbo Zhang wrote:
>> Hi Mark, Stephen and other DT maintainers?
>>
>> The 1/3 had already been acked by Mark, and please have a further look
>> at this patch 2/3.
>> The DMA maintainer Vinod  needs ack for the DT related patches so that
>> he can take all this patch set.
> Sorry for the delay.
>
> This looks ok to me.
>
> Acked-by: Mark Rutland <mark.rutland@arm.com>

Thanks, Mark.

>> On 09/26/2013 05:33 PM, hongbo.zhang@freescale.com wrote:
>>> From: Hongbo Zhang <hongbo.zhang@freescale.com>
>>>
>>> Freescale QorIQ T4 and B4 introduce new 8-channel DMA engines, this patch adds
>>> the device tree nodes for them.
>>>
>>> Signed-off-by: Hongbo Zhang <hongbo.zhang@freescale.com>
>>> ---
>>>    .../devicetree/bindings/powerpc/fsl/dma.txt        |   70 +++++++++++++++++
>>>    arch/powerpc/boot/dts/fsl/b4si-post.dtsi           |    4 +-
>>>    arch/powerpc/boot/dts/fsl/elo3-dma-0.dtsi          |   82 ++++++++++++++++++++
>>>    arch/powerpc/boot/dts/fsl/elo3-dma-1.dtsi          |   82 ++++++++++++++++++++
>>>    arch/powerpc/boot/dts/fsl/t4240si-post.dtsi        |    4 +-
>>>    5 files changed, 238 insertions(+), 4 deletions(-)
>>>    create mode 100644 arch/powerpc/boot/dts/fsl/elo3-dma-0.dtsi
>>>    create mode 100644 arch/powerpc/boot/dts/fsl/elo3-dma-1.dtsi
>>>
>>> diff --git a/Documentation/devicetree/bindings/powerpc/fsl/dma.txt b/Documentation/devicetree/bindings/powerpc/fsl/dma.txt
>>> index 0584168..7fc1b01 100644
>>> --- a/Documentation/devicetree/bindings/powerpc/fsl/dma.txt
>>> +++ b/Documentation/devicetree/bindings/powerpc/fsl/dma.txt
>>> @@ -128,6 +128,76 @@ Example:
>>>                };
>>>        };
>>>
>>> +** 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
>>> +        - interrupt-parent  : optional, if needed for interrupt mapping
>>> +
>>> +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
>>> diff --git a/arch/powerpc/boot/dts/fsl/b4si-post.dtsi b/arch/powerpc/boot/dts/fsl/b4si-post.dtsi
>>> index 7399154..ea53ea1 100644
>>> --- a/arch/powerpc/boot/dts/fsl/b4si-post.dtsi
>>> +++ b/arch/powerpc/boot/dts/fsl/b4si-post.dtsi
>>> @@ -223,13 +223,13 @@
>>>                reg = <0xe2000 0x1000>;
>>>        };
>>>
>>> -/include/ "qoriq-dma-0.dtsi"
>>> +/include/ "elo3-dma-0.dtsi"
>>>        dma@100300 {
>>>                fsl,iommu-parent = <&pamu0>;
>>>                fsl,liodn-reg = <&guts 0x580>; /* DMA1LIODNR */
>>>        };
>>>
>>> -/include/ "qoriq-dma-1.dtsi"
>>> +/include/ "elo3-dma-1.dtsi"
>>>        dma@101300 {
>>>                fsl,iommu-parent = <&pamu0>;
>>>                fsl,liodn-reg = <&guts 0x584>; /* DMA2LIODNR */
>>> diff --git a/arch/powerpc/boot/dts/fsl/elo3-dma-0.dtsi b/arch/powerpc/boot/dts/fsl/elo3-dma-0.dtsi
>>> new file mode 100644
>>> index 0000000..3c210e0
>>> --- /dev/null
>>> +++ b/arch/powerpc/boot/dts/fsl/elo3-dma-0.dtsi
>>> @@ -0,0 +1,82 @@
>>> +/*
>>> + * QorIQ Elo3 DMA device tree stub [ controller @ offset 0x100000 ]
>>> + *
>>> + * Copyright 2013 Freescale Semiconductor Inc.
>>> + *
>>> + * Redistribution and use in source and binary forms, with or without
>>> + * modification, are permitted provided that the following conditions are met:
>>> + *     * Redistributions of source code must retain the above copyright
>>> + *       notice, this list of conditions and the following disclaimer.
>>> + *     * Redistributions in binary form must reproduce the above copyright
>>> + *       notice, this list of conditions and the following disclaimer in the
>>> + *       documentation and/or other materials provided with the distribution.
>>> + *     * Neither the name of Freescale Semiconductor nor the
>>> + *       names of its contributors may be used to endorse or promote products
>>> + *       derived from this software without specific prior written permission.
>>> + *
>>> + *
>>> + * ALTERNATIVELY, this software may be distributed under the terms of the
>>> + * GNU General Public License ("GPL") as published by the Free Software
>>> + * Foundation, either version 2 of that License or (at your option) any
>>> + * later version.
>>> + *
>>> + * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
>>> + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
>>> + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
>>> + * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
>>> + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
>>> + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
>>> + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
>>> + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
>>> + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
>>> + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
>>> + */
>>> +
>>> +dma0: 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>;
>>> +     };
>>> +};
>>> diff --git a/arch/powerpc/boot/dts/fsl/elo3-dma-1.dtsi b/arch/powerpc/boot/dts/fsl/elo3-dma-1.dtsi
>>> new file mode 100644
>>> index 0000000..cccf3bb
>>> --- /dev/null
>>> +++ b/arch/powerpc/boot/dts/fsl/elo3-dma-1.dtsi
>>> @@ -0,0 +1,82 @@
>>> +/*
>>> + * QorIQ Elo3 DMA device tree stub [ controller @ offset 0x101000 ]
>>> + *
>>> + * Copyright 2013 Freescale Semiconductor Inc.
>>> + *
>>> + * Redistribution and use in source and binary forms, with or without
>>> + * modification, are permitted provided that the following conditions are met:
>>> + *     * Redistributions of source code must retain the above copyright
>>> + *       notice, this list of conditions and the following disclaimer.
>>> + *     * Redistributions in binary form must reproduce the above copyright
>>> + *       notice, this list of conditions and the following disclaimer in the
>>> + *       documentation and/or other materials provided with the distribution.
>>> + *     * Neither the name of Freescale Semiconductor nor the
>>> + *       names of its contributors may be used to endorse or promote products
>>> + *       derived from this software without specific prior written permission.
>>> + *
>>> + *
>>> + * ALTERNATIVELY, this software may be distributed under the terms of the
>>> + * GNU General Public License ("GPL") as published by the Free Software
>>> + * Foundation, either version 2 of that License or (at your option) any
>>> + * later version.
>>> + *
>>> + * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
>>> + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
>>> + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
>>> + * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
>>> + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
>>> + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
>>> + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
>>> + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
>>> + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
>>> + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
>>> + */
>>> +
>>> +dma1: dma@101300 {
>>> +     #address-cells = <1>;
>>> +     #size-cells = <1>;
>>> +     compatible = "fsl,elo3-dma";
>>> +     reg = <0x101300 0x4>,
>>> +           <0x101600 0x4>;
>>> +     ranges = <0x0 0x101100 0x500>;
>>> +     dma-channel@0 {
>>> +             compatible = "fsl,eloplus-dma-channel";
>>> +             reg = <0x0 0x80>;
>>> +             interrupts = <32 2 0 0>;
>>> +     };
>>> +     dma-channel@80 {
>>> +             compatible = "fsl,eloplus-dma-channel";
>>> +             reg = <0x80 0x80>;
>>> +             interrupts = <33 2 0 0>;
>>> +     };
>>> +     dma-channel@100 {
>>> +             compatible = "fsl,eloplus-dma-channel";
>>> +             reg = <0x100 0x80>;
>>> +             interrupts = <34 2 0 0>;
>>> +     };
>>> +     dma-channel@180 {
>>> +             compatible = "fsl,eloplus-dma-channel";
>>> +             reg = <0x180 0x80>;
>>> +             interrupts = <35 2 0 0>;
>>> +     };
>>> +     dma-channel@300 {
>>> +             compatible = "fsl,eloplus-dma-channel";
>>> +             reg = <0x300 0x80>;
>>> +             interrupts = <80 2 0 0>;
>>> +     };
>>> +     dma-channel@380 {
>>> +             compatible = "fsl,eloplus-dma-channel";
>>> +             reg = <0x380 0x80>;
>>> +             interrupts = <81 2 0 0>;
>>> +     };
>>> +     dma-channel@400 {
>>> +             compatible = "fsl,eloplus-dma-channel";
>>> +             reg = <0x400 0x80>;
>>> +             interrupts = <82 2 0 0>;
>>> +     };
>>> +     dma-channel@480 {
>>> +             compatible = "fsl,eloplus-dma-channel";
>>> +             reg = <0x480 0x80>;
>>> +             interrupts = <83 2 0 0>;
>>> +     };
>>> +};
>>> diff --git a/arch/powerpc/boot/dts/fsl/t4240si-post.dtsi b/arch/powerpc/boot/dts/fsl/t4240si-post.dtsi
>>> index bd611a9..ec95c60 100644
>>> --- a/arch/powerpc/boot/dts/fsl/t4240si-post.dtsi
>>> +++ b/arch/powerpc/boot/dts/fsl/t4240si-post.dtsi
>>> @@ -387,8 +387,8 @@
>>>                reg        = <0xea000 0x4000>;
>>>        };
>>>
>>> -/include/ "qoriq-dma-0.dtsi"
>>> -/include/ "qoriq-dma-1.dtsi"
>>> +/include/ "elo3-dma-0.dtsi"
>>> +/include/ "elo3-dma-1.dtsi"
>>>
>>>    /include/ "qoriq-espi-0.dtsi"
>>>        spi@110000 {
>>
>>
>>

Patch

diff --git a/Documentation/devicetree/bindings/powerpc/fsl/dma.txt b/Documentation/devicetree/bindings/powerpc/fsl/dma.txt
index 0584168..7fc1b01 100644
--- a/Documentation/devicetree/bindings/powerpc/fsl/dma.txt
+++ b/Documentation/devicetree/bindings/powerpc/fsl/dma.txt
@@ -128,6 +128,76 @@  Example:
 		};
 	};
 
+** 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
+        - interrupt-parent  : optional, if needed for interrupt mapping
+
+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
diff --git a/arch/powerpc/boot/dts/fsl/b4si-post.dtsi b/arch/powerpc/boot/dts/fsl/b4si-post.dtsi
index 7399154..ea53ea1 100644
--- a/arch/powerpc/boot/dts/fsl/b4si-post.dtsi
+++ b/arch/powerpc/boot/dts/fsl/b4si-post.dtsi
@@ -223,13 +223,13 @@ 
 		reg = <0xe2000 0x1000>;
 	};
 
-/include/ "qoriq-dma-0.dtsi"
+/include/ "elo3-dma-0.dtsi"
 	dma@100300 {
 		fsl,iommu-parent = <&pamu0>;
 		fsl,liodn-reg = <&guts 0x580>; /* DMA1LIODNR */
 	};
 
-/include/ "qoriq-dma-1.dtsi"
+/include/ "elo3-dma-1.dtsi"
 	dma@101300 {
 		fsl,iommu-parent = <&pamu0>;
 		fsl,liodn-reg = <&guts 0x584>; /* DMA2LIODNR */
diff --git a/arch/powerpc/boot/dts/fsl/elo3-dma-0.dtsi b/arch/powerpc/boot/dts/fsl/elo3-dma-0.dtsi
new file mode 100644
index 0000000..3c210e0
--- /dev/null
+++ b/arch/powerpc/boot/dts/fsl/elo3-dma-0.dtsi
@@ -0,0 +1,82 @@ 
+/*
+ * QorIQ Elo3 DMA device tree stub [ controller @ offset 0x100000 ]
+ *
+ * Copyright 2013 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Freescale Semiconductor nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+dma0: 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>;
+	};
+};
diff --git a/arch/powerpc/boot/dts/fsl/elo3-dma-1.dtsi b/arch/powerpc/boot/dts/fsl/elo3-dma-1.dtsi
new file mode 100644
index 0000000..cccf3bb
--- /dev/null
+++ b/arch/powerpc/boot/dts/fsl/elo3-dma-1.dtsi
@@ -0,0 +1,82 @@ 
+/*
+ * QorIQ Elo3 DMA device tree stub [ controller @ offset 0x101000 ]
+ *
+ * Copyright 2013 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Freescale Semiconductor nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+dma1: dma@101300 {
+	#address-cells = <1>;
+	#size-cells = <1>;
+	compatible = "fsl,elo3-dma";
+	reg = <0x101300 0x4>,
+	      <0x101600 0x4>;
+	ranges = <0x0 0x101100 0x500>;
+	dma-channel@0 {
+		compatible = "fsl,eloplus-dma-channel";
+		reg = <0x0 0x80>;
+		interrupts = <32 2 0 0>;
+	};
+	dma-channel@80 {
+		compatible = "fsl,eloplus-dma-channel";
+		reg = <0x80 0x80>;
+		interrupts = <33 2 0 0>;
+	};
+	dma-channel@100 {
+		compatible = "fsl,eloplus-dma-channel";
+		reg = <0x100 0x80>;
+		interrupts = <34 2 0 0>;
+	};
+	dma-channel@180 {
+		compatible = "fsl,eloplus-dma-channel";
+		reg = <0x180 0x80>;
+		interrupts = <35 2 0 0>;
+	};
+	dma-channel@300 {
+		compatible = "fsl,eloplus-dma-channel";
+		reg = <0x300 0x80>;
+		interrupts = <80 2 0 0>;
+	};
+	dma-channel@380 {
+		compatible = "fsl,eloplus-dma-channel";
+		reg = <0x380 0x80>;
+		interrupts = <81 2 0 0>;
+	};
+	dma-channel@400 {
+		compatible = "fsl,eloplus-dma-channel";
+		reg = <0x400 0x80>;
+		interrupts = <82 2 0 0>;
+	};
+	dma-channel@480 {
+		compatible = "fsl,eloplus-dma-channel";
+		reg = <0x480 0x80>;
+		interrupts = <83 2 0 0>;
+	};
+};
diff --git a/arch/powerpc/boot/dts/fsl/t4240si-post.dtsi b/arch/powerpc/boot/dts/fsl/t4240si-post.dtsi
index bd611a9..ec95c60 100644
--- a/arch/powerpc/boot/dts/fsl/t4240si-post.dtsi
+++ b/arch/powerpc/boot/dts/fsl/t4240si-post.dtsi
@@ -387,8 +387,8 @@ 
 		reg	   = <0xea000 0x4000>;
 	};
 
-/include/ "qoriq-dma-0.dtsi"
-/include/ "qoriq-dma-1.dtsi"
+/include/ "elo3-dma-0.dtsi"
+/include/ "elo3-dma-1.dtsi"
 
 /include/ "qoriq-espi-0.dtsi"
 	spi@110000 {