DMA: Freescale: Add new 8-channel DMA engine device tree nodes
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> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Hongbo Zhang
Vinod Koul
parent
c3d68d8dd4
commit
03aa254f1e
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@ -128,6 +128,76 @@ Example:
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};
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};
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** Freescale Elo3 DMA Controller
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DMA controller which has same function as EloPlus except that Elo3 has 8
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channels while EloPlus has only 4, it is used in Freescale Txxx and Bxxx
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series chips, such as t1040, t4240, b4860.
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Required properties:
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- compatible : must include "fsl,elo3-dma"
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- reg : contains two entries for DMA General Status Registers,
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i.e. DGSR0 which includes status for channel 1~4, and
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DGSR1 for channel 5~8
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- ranges : describes the mapping between the address space of the
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DMA channels and the address space of the DMA controller
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- DMA channel nodes:
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- compatible : must include "fsl,eloplus-dma-channel"
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- reg : DMA channel specific registers
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- interrupts : interrupt specifier for DMA channel IRQ
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- interrupt-parent : optional, if needed for interrupt mapping
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Example:
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dma@100300 {
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#address-cells = <1>;
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#size-cells = <1>;
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compatible = "fsl,elo3-dma";
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reg = <0x100300 0x4>,
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<0x100600 0x4>;
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ranges = <0x0 0x100100 0x500>;
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dma-channel@0 {
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compatible = "fsl,eloplus-dma-channel";
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reg = <0x0 0x80>;
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interrupts = <28 2 0 0>;
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};
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dma-channel@80 {
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compatible = "fsl,eloplus-dma-channel";
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reg = <0x80 0x80>;
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interrupts = <29 2 0 0>;
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};
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dma-channel@100 {
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compatible = "fsl,eloplus-dma-channel";
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reg = <0x100 0x80>;
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interrupts = <30 2 0 0>;
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};
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dma-channel@180 {
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compatible = "fsl,eloplus-dma-channel";
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reg = <0x180 0x80>;
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interrupts = <31 2 0 0>;
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};
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dma-channel@300 {
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compatible = "fsl,eloplus-dma-channel";
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reg = <0x300 0x80>;
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interrupts = <76 2 0 0>;
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};
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dma-channel@380 {
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compatible = "fsl,eloplus-dma-channel";
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reg = <0x380 0x80>;
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interrupts = <77 2 0 0>;
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};
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dma-channel@400 {
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compatible = "fsl,eloplus-dma-channel";
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reg = <0x400 0x80>;
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interrupts = <78 2 0 0>;
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};
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dma-channel@480 {
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compatible = "fsl,eloplus-dma-channel";
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reg = <0x480 0x80>;
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interrupts = <79 2 0 0>;
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};
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};
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Note on DMA channel compatible properties: The compatible property must say
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"fsl,elo-dma-channel" or "fsl,eloplus-dma-channel" to be used by the Elo DMA
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driver (fsldma). Any DMA channel used by fsldma cannot be used by another
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@ -223,13 +223,13 @@
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reg = <0xe2000 0x1000>;
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};
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/include/ "qoriq-dma-0.dtsi"
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/include/ "elo3-dma-0.dtsi"
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dma@100300 {
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fsl,iommu-parent = <&pamu0>;
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fsl,liodn-reg = <&guts 0x580>; /* DMA1LIODNR */
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};
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/include/ "qoriq-dma-1.dtsi"
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/include/ "elo3-dma-1.dtsi"
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dma@101300 {
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fsl,iommu-parent = <&pamu0>;
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fsl,liodn-reg = <&guts 0x584>; /* DMA2LIODNR */
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82
arch/powerpc/boot/dts/fsl/elo3-dma-0.dtsi
Normal file
82
arch/powerpc/boot/dts/fsl/elo3-dma-0.dtsi
Normal file
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@ -0,0 +1,82 @@
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/*
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* QorIQ Elo3 DMA device tree stub [ controller @ offset 0x100000 ]
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*
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* Copyright 2013 Freescale Semiconductor Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Freescale Semiconductor nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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*
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* ALTERNATIVELY, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") as published by the Free Software
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* Foundation, either version 2 of that License or (at your option) any
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* later version.
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*
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* THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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dma0: dma@100300 {
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#address-cells = <1>;
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#size-cells = <1>;
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compatible = "fsl,elo3-dma";
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reg = <0x100300 0x4>,
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<0x100600 0x4>;
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ranges = <0x0 0x100100 0x500>;
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dma-channel@0 {
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compatible = "fsl,eloplus-dma-channel";
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reg = <0x0 0x80>;
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interrupts = <28 2 0 0>;
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};
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dma-channel@80 {
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compatible = "fsl,eloplus-dma-channel";
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reg = <0x80 0x80>;
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interrupts = <29 2 0 0>;
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};
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dma-channel@100 {
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compatible = "fsl,eloplus-dma-channel";
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reg = <0x100 0x80>;
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interrupts = <30 2 0 0>;
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};
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dma-channel@180 {
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compatible = "fsl,eloplus-dma-channel";
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reg = <0x180 0x80>;
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interrupts = <31 2 0 0>;
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};
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dma-channel@300 {
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compatible = "fsl,eloplus-dma-channel";
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reg = <0x300 0x80>;
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interrupts = <76 2 0 0>;
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};
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dma-channel@380 {
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compatible = "fsl,eloplus-dma-channel";
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reg = <0x380 0x80>;
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interrupts = <77 2 0 0>;
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};
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dma-channel@400 {
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compatible = "fsl,eloplus-dma-channel";
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reg = <0x400 0x80>;
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interrupts = <78 2 0 0>;
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};
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dma-channel@480 {
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compatible = "fsl,eloplus-dma-channel";
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reg = <0x480 0x80>;
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interrupts = <79 2 0 0>;
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};
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};
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82
arch/powerpc/boot/dts/fsl/elo3-dma-1.dtsi
Normal file
82
arch/powerpc/boot/dts/fsl/elo3-dma-1.dtsi
Normal file
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@ -0,0 +1,82 @@
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/*
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* QorIQ Elo3 DMA device tree stub [ controller @ offset 0x101000 ]
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*
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* Copyright 2013 Freescale Semiconductor Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Freescale Semiconductor nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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*
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* ALTERNATIVELY, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") as published by the Free Software
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* Foundation, either version 2 of that License or (at your option) any
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* later version.
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*
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* THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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dma1: dma@101300 {
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#address-cells = <1>;
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#size-cells = <1>;
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compatible = "fsl,elo3-dma";
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reg = <0x101300 0x4>,
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<0x101600 0x4>;
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ranges = <0x0 0x101100 0x500>;
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dma-channel@0 {
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compatible = "fsl,eloplus-dma-channel";
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reg = <0x0 0x80>;
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interrupts = <32 2 0 0>;
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};
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dma-channel@80 {
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compatible = "fsl,eloplus-dma-channel";
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reg = <0x80 0x80>;
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interrupts = <33 2 0 0>;
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};
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dma-channel@100 {
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compatible = "fsl,eloplus-dma-channel";
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reg = <0x100 0x80>;
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interrupts = <34 2 0 0>;
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};
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dma-channel@180 {
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compatible = "fsl,eloplus-dma-channel";
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reg = <0x180 0x80>;
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interrupts = <35 2 0 0>;
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};
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dma-channel@300 {
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compatible = "fsl,eloplus-dma-channel";
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reg = <0x300 0x80>;
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interrupts = <80 2 0 0>;
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};
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dma-channel@380 {
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compatible = "fsl,eloplus-dma-channel";
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reg = <0x380 0x80>;
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interrupts = <81 2 0 0>;
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};
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dma-channel@400 {
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compatible = "fsl,eloplus-dma-channel";
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reg = <0x400 0x80>;
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interrupts = <82 2 0 0>;
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};
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dma-channel@480 {
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compatible = "fsl,eloplus-dma-channel";
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reg = <0x480 0x80>;
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interrupts = <83 2 0 0>;
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};
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};
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@ -387,8 +387,8 @@
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reg = <0xea000 0x4000>;
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};
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/include/ "qoriq-dma-0.dtsi"
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/include/ "qoriq-dma-1.dtsi"
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/include/ "elo3-dma-0.dtsi"
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/include/ "elo3-dma-1.dtsi"
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/include/ "qoriq-espi-0.dtsi"
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spi@110000 {
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