19 Sep, 2018

1 commit

• de75fb09a   clk: armada-37xx-periph: Support changing clock parent and rate ... Browse Code »

  Add support for changing clock rate and parent clock for Armada 37xx
  peripheral clocks.

  Only clocks which can be disabled (.can_gate is true) can have parent
  or rate changed.

  This is needed so that Turris Mox can change SPI clock in device tree.

  Signed-off-by: Marek Behun
  Signed-off-by: Stefan Roese

  Marek Behún

  2018-09-19 14:59:26 +0800  

14 May, 2018

2 commits

• dd77690c4   clk: armada-37xx: Support soc_clk_dump ... Browse Code »

  Add support for the clk dump command on Armada 37xx.

  Signed-off-by: Marek Behun
  Reviewed-by: Stefan Roese
  Signed-off-by: Stefan Roese

  Marek Behún

  2018-05-14 16:00:15 +0800  
• 82a248df9   driver: clk: Add support for clocks on Armada 37xx ... Browse Code »

  The drivers are based on Linux driver by Gregory Clement.

  The TBG clocks support only the .get_rate method.
  - since setting rate is not supported, the driver computes the rates
  when probing and so subsequent calls to the .get_rate method do not
  read the corresponding registers again

  The peripheral clocks support methods .get_rate, .enable and .disable.

  - the .set_parent method theoretically could be supported on some clocks
  (the parent would have to be one of the TBG clocks)

  - the .set_rate method would have to try all the divider values to find
  the best approximation of a given rate, and it doesn't seem like
  this should be needed in U-Boot, therefore not implemented

  Signed-off-by: Marek Behun
  Reviewed-by: Stefan Roese
  Signed-off-by: Stefan Roese

  Marek Behún

  2018-05-14 16:00:15 +0800