refactor rx6x bsp

hw/bsp/rx63n/boards/rx65n_cloud_kit/board.mk

@@ -6,40 +6,11 @@ CFLAGS += \
   -DIER_USB0_USBI0=IER_PERIB_INTB185 \
   -DIEN_USB0_USBI0=IEN_PERIB_INTB185
 
-RX_NEWLIB ?= 1
-
-ifeq ($(CMDEXE),1)
-OPTLIBINC="$(shell for /F "usebackq delims=" %%i in (`where rx-elf-gcc`) do echo %%~dpi..\rx-elf\optlibinc)"
-else
-OPTLIBINC=$(shell dirname `which rx-elf-gcc`)../rx-elf/optlibinc
-endif
-
-ifeq ($(RX_NEWLIB),1)
-CFLAGS += -DSSIZE_MAX=__INT_MAX__
-else
-# setup for optlib
-CFLAGS += -nostdinc \
-  -isystem $(OPTLIBINC) \
-  -DLWIP_NO_INTTYPES_H
-
-LIBS += -loptc -loptm
-endif
-
 MCU_DIR = hw/mcu/renesas/rx/rx65n
 
 # All source paths should be relative to the top level.
 LD_FILE = $(BOARD_PATH)/r5f565ne.ld
 
-SRC_C += \
-	src/portable/renesas/usba/dcd_usba.c \
-	$(MCU_DIR)/vects.c
-
-INC += \
-	$(TOP)/$(BOARD_PATH) \
-	$(TOP)/$(MCU_DIR)
-
-SRC_S += $(MCU_DIR)/start.S
-
 # For freeRTOS port source
 FREERTOS_PORT = RX600