From: Jaehoon Chung <jh80.chung@samsung.com>
To: Doug Anderson <dianders@chromium.org>,
Shawn Lin <shawn.lin@rock-chips.com>
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Subject: Re: [RFC PATCH v3 2/5] Documentation: synopsys-dw-mshc: add bindings for idmac and edmac
Date: Thu, 06 Aug 2015 11:20:03 +0900 [thread overview]
Message-ID: <55C2C453.3000005@samsung.com> (raw)
In-Reply-To: <CAD=FV=Wv1FLHGyK=yL_P-WbRZwnK2K-rMEaXHjsZf+4iHfucjw@mail.gmail.com>
On 08/06/2015 11:16 AM, Doug Anderson wrote:
> Shawn,
>
> On Wed, Aug 5, 2015 at 1:17 AM, Shawn Lin <shawn.lin@rock-chips.com> wrote:
>> synopsys-dw-mshc supports three types of transfer mode. We add bindings
>> and description for how to use them at runtime. Without idmac and edmac
>> property, pio is the default transfer mode. Make sure that Idmac and emdac
>> should not be used simultaneously.
>
> Can't you just read the HCON register?
>
> [17:16]: DMA_INTERFACE
> 00: none
> 01: DW_DMA
> 10: GENERIC_DMA
> 11: NON-DW-DMA
If read it and get the exactly information. I think we can use that information.
Best Regards,
Jaehoon Chung
>
next prev parent reply other threads:[~2015-08-06 2:20 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-05 8:16 [RFC PATCH v3 0/5] Shawn Lin
2015-08-05 8:17 ` [RFC PATCH v3 1/5] mmc: dw_mmc: Add external dma interface support Shawn Lin
2015-08-05 8:49 ` Heiko Stübner
2015-08-05 9:11 ` Shawn Lin
2015-08-06 2:27 ` Jaehoon Chung
2015-08-06 3:35 ` Shawn Lin
2015-08-05 8:17 ` [RFC PATCH v3 2/5] Documentation: synopsys-dw-mshc: add bindings for idmac and edmac Shawn Lin
2015-08-05 8:27 ` Krzysztof Kozlowski
2015-08-05 8:43 ` Shawn Lin
2015-08-05 8:45 ` Heiko Stübner
2015-08-05 8:56 ` Shawn Lin
2015-08-06 2:16 ` Doug Anderson
2015-08-06 2:16 ` Doug Anderson
2015-08-06 2:20 ` Jaehoon Chung [this message]
2015-08-06 2:20 ` Jaehoon Chung
2015-08-06 3:13 ` Shawn Lin
2015-08-06 3:13 ` Shawn Lin
2015-08-05 8:18 ` [RFC PATCH v3 3/5] arm: configs: remove CONFIG_MMC_DW_IDMAC Shawn Lin
2015-08-05 8:34 ` Vineet Gupta
2015-08-05 8:34 ` Vineet Gupta
2015-08-05 8:48 ` Shawn Lin
2015-08-05 8:48 ` Shawn Lin
2015-08-05 8:18 ` [RFC PATCH v3 4/5] mips: " Shawn Lin
2015-08-05 8:18 ` [RFC PATCH v3 5/5] ARM: dts: add supports-idmac property Shawn Lin
2015-08-05 8:52 ` Alexey Brodkin
2015-08-05 8:52 ` Alexey Brodkin
2015-08-05 9:25 ` Shawn Lin
2015-08-05 9:25 ` Shawn Lin
2015-08-05 23:45 ` [RFC PATCH v3 0/5] Krzysztof Kozlowski
2015-08-06 0:45 ` Shawn Lin
2015-08-06 1:47 ` Jaehoon Chung
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