the inbuilt hardware cannot provide the transfer mode, or
where the board is using non hardware connected pins.
+config SPI_TXX9
+ tristate "Toshiba TXx9 SPI controller"
+ depends on SPI_MASTER && GENERIC_GPIO && CPU_TX49XX
+ help
+ SPI driver for Toshiba TXx9 MIPS SoCs
+
config SPI_XILINX
tristate "Xilinx SPI controller"
depends on SPI_MASTER && XILINX_VIRTEX && EXPERIMENTAL