SRC_DIR += common ifeq ($(CONFIG_BSP_USING_UART),y) SRC_DIR += usart endif ifeq ($(CONFIG_BSP_USING_GPIO),y) SRC_DIR += gpio endif ifeq ($(CONFIG_BSP_USING_LWIP),y) SRC_DIR += ethernet endif ifeq ($(CONFIG_BSP_USING_SPI),y) SRC_DIR += spi endif ifeq ($(CONFIG_BSP_USING_I2C),y) SRC_DIR += i2c endif ifeq ($(CONFIG_BSP_USING_SDIO),y) SRC_DIR += sdio endif ifeq ($(CONFIG_BSP_USING_USB),y) SRC_DIR += usb endif ifeq ($(CONFIG_BSP_USING_RTC),y) SRC_DIR += rtc endif ifeq ($(CONFIG_BSP_USING_WDT),y) SRC_DIR += watchdog endif ifeq ($(CONFIG_BSP_USING_TIMER),y) SRC_DIR += timer endif ifeq ($(CONFIG_BSP_USING_CAN),y) SRC_DIR += can endif include $(KERNEL_ROOT)/compiler.mk