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powerpc/85xx/dts: add third elo3 dma component 

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>
This commit is contained in:
Shengzhou Liu 2013-12-25 18:06:55 +08:00 committed by Scott Wood
parent ed2ddc56e7
commit f4093e2ea7
1 changed files with 82 additions and 0 deletions
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82
arch/powerpc/boot/dts/fsl/elo3-dma-2.dtsi Normal file
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/*
* QorIQ Elo3 DMA device tree stub [ controller @ offset 0x102300 ]
*
* Copyright 2013 Freescale Semiconductor Inc.
*
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* modification, are permitted provided that the following conditions are met:
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* documentation and/or other materials provided with the distribution.
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* 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
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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*/
dma2: dma@102300 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "fsl,elo3-dma";
reg = <0x102300 0x4>,
<0x102600 0x4>;
ranges = <0x0 0x102100 0x500>;
dma-channel@0 {
compatible = "fsl,eloplus-dma-channel";
reg = <0x0 0x80>;
interrupts = <464 2 0 0>;
};
dma-channel@80 {
compatible = "fsl,eloplus-dma-channel";
reg = <0x80 0x80>;
interrupts = <465 2 0 0>;
};
dma-channel@100 {
compatible = "fsl,eloplus-dma-channel";
reg = <0x100 0x80>;
interrupts = <466 2 0 0>;
};
dma-channel@180 {
compatible = "fsl,eloplus-dma-channel";
reg = <0x180 0x80>;
interrupts = <467 2 0 0>;
};
dma-channel@300 {
compatible = "fsl,eloplus-dma-channel";
reg = <0x300 0x80>;
interrupts = <468 2 0 0>;
};
dma-channel@380 {
compatible = "fsl,eloplus-dma-channel";
reg = <0x380 0x80>;
interrupts = <469 2 0 0>;
};
dma-channel@400 {
compatible = "fsl,eloplus-dma-channel";
reg = <0x400 0x80>;
interrupts = <470 2 0 0>;
};
dma-channel@480 {
compatible = "fsl,eloplus-dma-channel";
reg = <0x480 0x80>;
interrupts = <471 2 0 0>;
};
};