![Shengzhou Liu](/assets/img/avatar_default.png)
Add elo3-dma-2.dtsi to support the third DMA controller. This is used on T2080, T4240, B4860, etc. FSL MPIC v4.3 adds a new discontiguous address range for internal interrupts, e.g. internal interrupt 0 is at offset 0x200 and thus interrupt number is: 0x200 >> 5 = 16 in the device tree. DMA controller 3 channel 0 internal interrupt 240 is at offset 0x3a00, and thus the corresponding interrupt number is: 0x3a00 >> 5 = 464, it's similar for other 7 interrupt numbers of DMA 3 channels. Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com> Signed-off-by: Hongbo Zhang <hongbo.zhang@freescale.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
83 lines
2.9 KiB
Plaintext
83 lines
2.9 KiB
Plaintext
/*
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* QorIQ Elo3 DMA device tree stub [ controller @ offset 0x102300 ]
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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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dma2: dma@102300 {
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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 = <0x102300 0x4>,
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<0x102600 0x4>;
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ranges = <0x0 0x102100 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 = <464 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 = <465 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 = <466 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 = <467 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 = <468 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 = <469 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 = <470 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 = <471 2 0 0>;
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};
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};
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