config OF_DEVICE def_bool y depends on OF && (SPARC || PPC_OF) config OF_GPIO def_bool y depends on OF && PPC_OF && GPIOLIB help OpenFirmware GPIO accessors config OF_I2C def_tristate I2C depends on PPC_OF && I2C help OpenFirmware I2C accessors config OF_SPI def_tristate SPI depends on OF && PPC_OF && SPI help OpenFirmware SPI accessors