linux-kernel - Re: [PATCH v2 0/8] Port am335 and am437 devices to sdhci-omap

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Message-ID: <0c3b5570-c5ec-46c8-2548-8049100661d3@ti.com>
Date:   Mon, 18 Feb 2019 19:19:13 +0530
From:   Faiz Abbas <faiz_abbas@...com>
To:     Tony Lindgren <tony@...mide.com>
CC:     <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-mmc@...r.kernel.org>, <linux-omap@...r.kernel.org>,
        <ulf.hansson@...aro.org>, <robh+dt@...nel.org>,
        <mark.rutland@....com>, <adrian.hunter@...el.com>, <kishon@...com>,
        <zhang.chunyan@...aro.org>
Subject: Re: [PATCH v2 0/8] Port am335 and am437 devices to sdhci-omap

Hi Tony,

On 16/02/19 1:32 AM, Tony Lindgren wrote:
> * Faiz Abbas <faiz_abbas@...com> [190215 19:17]:
>> The following add driver patches for porting TI's am335x and am437x
>> devices to the sdhci-omap driver.
>>
>> This involves adding external DMA support to sdhci (first 3 patches from
>> Chunyan) plus some miscellaneous patches to take care of deviations of
>> the controllers from the sdhci model.
> 
> Good to see this happening :)
> 
> I think am437x should have also the ADMA as it's mostly
> omap4 based? See the old omap4 ADMA series at [0] below.
> 
> Are you seeing any improvment in SDIO card read/write speeds
> between external DMA and ADM BTW

am437 is using dmaengine even in the old omap_hsmmc driver. I haven't
tried to enable ADMA in am437x.

Thanks,
Faiz