K 10
svn:author
V 4
manu
K 8
svn:date
V 27
2018-02-26T21:27:42.808284Z
K 7
svn:log
V 618
dwmmc: Add clock support and other improvements

* If compiled with EXT_RESOURCES look up the "biu" and "ciu" clocks in
  the DT
* Don't use custom property "bus-frequency" but the standard one
  "clock-frequency"
* Use the DT property max-frequency and fall back to 200Mhz if it don't exists
* Add more mmc caps suported by the controller
* Always ack all interrupts
* Subclassed driver can supply an update_ios so they can handle update
  the clocks accordingly
* Take care of the DDR bit in update_ios (no functional change since we
  do not support voltage change for now)
* Make use of the FDT bus-width property

END