[PATCH V2 1/2] DMA: Freescale: Add new 8-channel DMA engine device tree nodes
Kumar Gala
galak at kernel.crashing.org
Mon Jul 15 23:35:07 EST 2013
On Jul 5, 2013, at 1:27 AM, <hongbo.zhang at freescale.com> <hongbo.zhang at freescale.com> wrote:
> From: Hongbo Zhang <hongbo.zhang at freescale.com>
>
> Freescale QorIQ T4 and B4 introduce new 8-channel DMA engines, this patch add
> the device tree nodes for them.
>
> Signed-off-by: Hongbo Zhang <hongbo.zhang at freescale.com>
> ---
> arch/powerpc/boot/dts/fsl/elo3-dma-0.dtsi | 90 +++++++++++++++++++++++++++
> arch/powerpc/boot/dts/fsl/elo3-dma-1.dtsi | 90 +++++++++++++++++++++++++++
> arch/powerpc/boot/dts/fsl/t4240si-post.dtsi | 4 +-
> 3 files changed, 182 insertions(+), 2 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/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..50cd911
> --- /dev/null
> +++ b/arch/powerpc/boot/dts/fsl/elo3-dma-0.dtsi
> @@ -0,0 +1,90 @@
> +/*
> + * QorIQ DMA device tree stub [ controller @ offset 0x100000 ]
> + *
> + * Copyright 2011-2013 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 at 100300 {
> + #address-cells = <1>;
> + #size-cells = <1>;
> + compatible = "fsl,elo3-dma";
why does this require a new compatible?
> + reg = <0x100300 0x4 0x100600 0x4>;
> + ranges = <0x0 0x100100 0x500>;
> + cell-index = <0>;
> + dma-channel at 0 {
> + compatible = "fsl,eloplus-dma-channel";
> + reg = <0x0 0x80>;
> + cell-index = <0>;
> + interrupts = <28 2 0 0>;
> + };
> + dma-channel at 80 {
> + compatible = "fsl,eloplus-dma-channel";
> + reg = <0x80 0x80>;
> + cell-index = <1>;
> + interrupts = <29 2 0 0>;
> + };
> + dma-channel at 100 {
> + compatible = "fsl,eloplus-dma-channel";
> + reg = <0x100 0x80>;
> + cell-index = <2>;
> + interrupts = <30 2 0 0>;
> + };
> + dma-channel at 180 {
> + compatible = "fsl,eloplus-dma-channel";
> + reg = <0x180 0x80>;
> + cell-index = <3>;
> + interrupts = <31 2 0 0>;
> + };
> + dma-channel at 300 {
> + compatible = "fsl,eloplus-dma-channel";
> + reg = <0x300 0x80>;
> + cell-index = <4>;
> + interrupts = <76 2 0 0>;
> + };
> + dma-channel at 380 {
> + compatible = "fsl,eloplus-dma-channel";
> + reg = <0x380 0x80>;
> + cell-index = <5>;
> + interrupts = <77 2 0 0>;
> + };
> + dma-channel at 400 {
> + compatible = "fsl,eloplus-dma-channel";
> + reg = <0x400 0x80>;
> + cell-index = <6>;
> + interrupts = <78 2 0 0>;
> + };
> + dma-channel at 480 {
> + compatible = "fsl,eloplus-dma-channel";
> + reg = <0x480 0x80>;
> + cell-index = <7>;
> + 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..c1aec68
> --- /dev/null
> +++ b/arch/powerpc/boot/dts/fsl/elo3-dma-1.dtsi
> @@ -0,0 +1,90 @@
> +/*
> + * QorIQ DMA device tree stub [ controller @ offset 0x101000 ]
> + *
> + * Copyright 2011-2013 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 at 101300 {
> + #address-cells = <1>;
> + #size-cells = <1>;
> + compatible = "fsl,elo3-dma";
> + reg = <0x101300 0x4 0x101600 0x4>;
> + ranges = <0x0 0x101100 0x500>;
> + cell-index = <1>;
> + dma-channel at 0 {
> + compatible = "fsl,eloplus-dma-channel";
> + reg = <0x0 0x80>;
> + cell-index = <0>;
> + interrupts = <32 2 0 0>;
> + };
> + dma-channel at 80 {
> + compatible = "fsl,eloplus-dma-channel";
> + reg = <0x80 0x80>;
> + cell-index = <1>;
> + interrupts = <33 2 0 0>;
> + };
> + dma-channel at 100 {
> + compatible = "fsl,eloplus-dma-channel";
> + reg = <0x100 0x80>;
> + cell-index = <2>;
> + interrupts = <34 2 0 0>;
> + };
> + dma-channel at 180 {
> + compatible = "fsl,eloplus-dma-channel";
> + reg = <0x180 0x80>;
> + cell-index = <3>;
> + interrupts = <35 2 0 0>;
> + };
> + dma-channel at 300 {
> + compatible = "fsl,eloplus-dma-channel";
> + reg = <0x300 0x80>;
> + cell-index = <4>;
> + interrupts = <80 2 0 0>;
> + };
> + dma-channel at 380 {
> + compatible = "fsl,eloplus-dma-channel";
> + reg = <0x380 0x80>;
> + cell-index = <5>;
> + interrupts = <81 2 0 0>;
> + };
> + dma-channel at 400 {
> + compatible = "fsl,eloplus-dma-channel";
> + reg = <0x400 0x80>;
> + cell-index = <6>;
> + interrupts = <82 2 0 0>;
> + };
> + dma-channel at 480 {
> + compatible = "fsl,eloplus-dma-channel";
> + reg = <0x480 0x80>;
> + cell-index = <7>;
> + 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 at 110000 {
> --
> 1.7.9.5
>
>
>
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