02 May, 2015

1 commit

• b2b3024ca   spi: rb4xx: Fix checking return value of devm_ioremap_resource() ... Browse Code »

  devm_ioremap_resource() returns ERR_PTR on failure.

  Signed-off-by: Axel Lin
  Signed-off-by: Mark Brown

  Axel Lin

  2015-05-02 00:35:54 +0800  

21 Apr, 2015

1 commit

• 4a1ae8be4   spi: rb4xx: Fix set_cs logic. ... Browse Code »

  As it turns out, the set_cs() enable parameter refers to the logic level
  on the CS pin, not the state of chip selection.

  This broke functionality of the LEDs behind the CPLD, or at least delayed
  the commands until another one came in to toggle CS.

  Signed-off-by: Bert Vermeulen
  Signed-off-by: Mark Brown

  Bert Vermeulen

  2015-04-21 04:34:59 +0800  

18 Apr, 2015

1 commit

• 05aec3578   spi: Add SPI driver for Mikrotik RB4xx series boards ... Browse Code »

  This driver mediates access between the connected CPLD and other devices
  on the bus.

  The m25p80-compatible boot flash and (some models) MMC use regular SPI,
  bitbanged as required by the SoC. However the SPI-connected CPLD has
  a two-wire mode, in which two bits are transferred per SPI clock
  cycle. The second bit is transmitted with the SoC's CS2 pin.

  Signed-off-by: Bert Vermeulen
  Signed-off-by: Mark Brown

  Bert Vermeulen

  2015-04-18 20:57:58 +0800