On Fri, Jan 27, 2017 at 11:29:53AM +0100, Florian Vaussard wrote:

Hi Maxime,

On 01/26/2017 10:06 AM, Maxime Ripard wrote:

quoted

The eMMC controller seem to have a maximum frequency of 200MHz, while the
regular MMC controllers are capped at 150MHz.

Since older SoCs cannot go that high, we cannot change the default maximum
frequency, but fortunately for us we have a property for that in the DT.

This also has the side effect of allowing to use the MMC HS200 and SD
SDR104 modes for the boards that support it (with either 1.2v or 1.8v IOs).

Signed-off-by: Maxime Ripard <redacted>

arm64: allwinner: a64: Limit MMC0 and MMC1 rates to 150MHz

Trying to set the bus to 200MHz on MMC1 when doing SDIO is failing.
Allwinner sets the maximum for this bus to 150MHz, so enforce that limit.

This hasn't been tested with MMC0, but the documented limit is the same,
and I expect the behaviour to be the same.

Signed-off-by: Maxime Ripard <redacted>

I suspect that you are trying to increase your number of Signed-off-by tags by
using unfair means :) Otherwise the squashed commit message is probably worth
some cleaning.

/me hides in a corner...

The first commit log is the right one, I'll remove the second.

Thanks!
Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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