From mboxrd@z Thu Jan  1 00:00:00 1970
From: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
Subject: Re: Correct DT properties for Arasan controller
Date: Fri, 20 Nov 2015 14:21:16 +0100
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To: Alan Cooper <alcooperx@gmail.com>, Arnd Bergmann <arnd@arndb.de>
Cc: linux-mmc <linux-mmc@vger.kernel.org>, Ulf Hansson <ulf.hansson@linaro.org>, Soren Brinkmann <soren.brinkmann@xilinx.com>, Michal Simek <michal.simek@xilinx.com>, Russell King <linux@arm.linux.org.uk>, Suman Tripathi <stripathi@apm.com>

On 19/11/2015 22:42, Alan Cooper wrote:

>>>                       cap-sd-highspeed;
>>>                       sd-uhs-sdr12;
>>>                       sd-uhs-sdr25;
>>>                       sd-uhs-sdr50;
>>>                       sd-uhs-ddr50;
>>>                       sd-uhs-sdr104;
> 
> These values normally come from the Host Controllers CAPS registers
> and are only needed if the CAPS register setting are incorrect.

Using a 4 GB microSDHC card + SD adapter, I get read speeds of
17.3 MB/s (4072669184 bytes in 236 seconds).
Is that an expected value? SDR25 should be 25 MB/s.
Perhaps I need to buy a better card.

>>> - cap-mmc-hw-reset: eMMC hardware reset is supported
> 
> This is only set if the driver supplies a hw_reset callback and the
> Arasan driver does not.

OK.

>>> - cap-sdio-irq: enable SDIO IRQ signalling on this interface
> 
> This is only set if the driver supplies a enable_sdio_irq and the
> Arasan driver does not.

Can't it use a generic implementation, such as sdhci_enable_sdio_irq?

Regards.