On Fri, Sep 23, 2016 at 03:01:08PM -0500, Zach Brown wrote:

Certain board configurations can make highspeed malfunction due to
timing issues. In these cases a way is needed to force the controller
and card into standard speed even if they otherwise appear to be capable
of highspeed.

The sd-broken-highspeed property will let the sdhci driver know that
highspeed will not work.

Signed-off-by: Zach Brown <redacted>
---
 Documentation/devicetree/bindings/mmc/mmc.txt | 2 ++
 1 file changed, 2 insertions(+)

Acked-by: Rob Herring <redacted>
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