linux-kernel - RE: [v4 1/2] dmaengine: fsl-edma: Add eDMA support for QorIQ LS1028A platform

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Date:   Thu, 12 Dec 2019 01:56:26 +0000
From:   Robin Gong <yibin.gong@....com>
To:     Peng Ma <peng.ma@....com>, "vkoul@...nel.org" <vkoul@...nel.org>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        Leo Li <leoyang.li@....com>,
        "dan.j.williams@...el.com" <dan.j.williams@...el.com>
CC:     "dmaengine@...r.kernel.org" <dmaengine@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: RE: [v4 1/2] dmaengine: fsl-edma: Add eDMA support for QorIQ LS1028A
 platform

On 2019/11/12 16:10 Peng Ma <peng.ma@....com> wrote:
> Our platforms(such as LS1021A, LS1012A, LS1043A, LS1046A, LS1028A) with
> below registers(CHCFG0 - CHCFG15) of eDMA as follows:
> *-----------------------------------------------------------*
> |     Offset   |	OTHERS      |		LS1028A	    |
> |--------------|--------------------|-----------------------|
> |     0x0      |        CHCFG0      |           CHCFG3      |
> |--------------|--------------------|-----------------------|
> |     0x1      |        CHCFG1      |           CHCFG2      |
> |--------------|--------------------|-----------------------|
> |     0x2      |        CHCFG2      |           CHCFG1      |
> |--------------|--------------------|-----------------------|
> |     0x3      |        CHCFG3      |           CHCFG0      |
> |--------------|--------------------|-----------------------|
> |     ...      |        ......      |           ......      |
> |--------------|--------------------|-----------------------|
> |     0xC      |        CHCFG12     |           CHCFG15     |
> |--------------|--------------------|-----------------------|
> |     0xD      |        CHCFG13     |           CHCFG14     |
> |--------------|--------------------|-----------------------|
> |     0xE      |        CHCFG14     |           CHCFG13     |
> |--------------|--------------------|-----------------------|
> |     0xF      |        CHCFG15     |           CHCFG12     |
> *-----------------------------------------------------------*
> 
> This patch is to improve edma driver to fit LS1028A platform.
> 
> Signed-off-by: Peng Ma <peng.ma@....com>
Reviewed-by: Robin Gong <yibin.gong@....com>