Re: [RFC v2 1/2] sdhci: Add device tree property broken-highspeed

2016-10-18 Thread Rob Herring
On Wed, Oct 12, 2016 at 01:40:55PM -0500, Zach Brown wrote: > Certain board configurations can make highspeed malfuction 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. > >

Re: [RFC v2 1/2] sdhci: Add device tree property broken-highspeed

2016-10-18 Thread Rob Herring
On Wed, Oct 12, 2016 at 01:40:55PM -0500, Zach Brown wrote: > Certain board configurations can make highspeed malfuction 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. > >

Re: [RFC v2 1/2] sdhci: Add device tree property broken-highspeed

2016-10-12 Thread Jaehoon Chung
On 10/13/2016 03:40 AM, Zach Brown wrote: > Certain board configurations can make highspeed malfuction 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. I'm not sure

Re: [RFC v2 1/2] sdhci: Add device tree property broken-highspeed

2016-10-12 Thread Jaehoon Chung
On 10/13/2016 03:40 AM, Zach Brown wrote: > Certain board configurations can make highspeed malfuction 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. I'm not sure

[RFC v2 1/2] sdhci: Add device tree property broken-highspeed

2016-10-12 Thread Zach Brown
Certain board configurations can make highspeed malfuction 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 broken-highspeed property will let the sdhci driver know that

[RFC v2 1/2] sdhci: Add device tree property broken-highspeed

2016-10-12 Thread Zach Brown
Certain board configurations can make highspeed malfuction 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 broken-highspeed property will let the sdhci driver know that