This controller is different than the older SoCs SPI controller and
also register interface get changed with this controller.
+config TEGRA20_SFLASH
+ bool "nVidia Tegra20 Serial Flash controller driver"
+ help
+ Enable the nVidia Tegra20 Serial Flash controller driver. This driver
+ can be used to access the SPI NOR flash on platforms embedding this
+ nVidia Tegra20 IP core.
+
+config TEGRA20_SLINK
+ bool "nVidia Tegra20/Tegra30 SLINK driver"
+ help
+ Enable the nVidia Tegra20/Tegra30 SLINK driver. This driver can
+ be used to access the SPI NOR flash on platforms embedding this
+ nVidia Tegra20/Tegra30 IP cores.
+
config XILINX_SPI
bool "Xilinx SPI driver"
help