Subversion Repositories mips_enhanced

SPI memory controller

CONFIG_SPIMCTRL

  Say Y here to enable a simple SPI memory controller.

  The controller maps a SPI memory device into AMBA address space and

  also has a simple interface that allows sending commands directly

  to the SPI device.

SD card support

CONFIG_SPIMCTRL_SDCARD

  Memory device connected to controller is SD card.

Read command

CONFIG_SPIMCTRL_READCMD

  Read instruction for SPI memory device

Dummy byte

CONFIG_SPIMCTRL_DUMMYBYTE

  Output dummy byte after address when issuing read instruction.

Dual output

CONFIG_SPIMCTRL_DUALOUTPUT

  Memory device supports dual output when reading data.

Clock scaler

CONFIG_SPIMCTRL_SCALER

  Selects the divisor used when dividing the system clock to produce

  the memory device clock. The divisor used is two to the power of the

  specified value. This value must be at least 1.

Alternate clock scaler

CONFIG_SPIMCTRL_ASCALER

  Selects the divisor used when dividing the system clock to produce

  the alternate memory device clock. If the selected memory device is

  a SD Card this clock will be used during card initialization. The

  divisor used is two to the power of the specified value. This

  value must be at least 1.

Power-up cnt

CONFIG_SPIMCTRL_PWRUPCNT

  Number of system clock cycles to wait before issuing first command.