RAM_START_ADDR ?= 0x20000000
ROM_START_ADDR ?= 0x08000000

ifneq (,$(filter gd32vf103%bt6 gd32vf103%bu6,$(CPU_MODEL)))
  RAM_LEN ?= 32K
  ROM_LEN ?= 128K
else ifneq (,$(filter gd32vf103%8t6 gd32vf103%8u6,$(CPU_MODEL)))
  RAM_LEN ?= 20K
  ROM_LEN ?= 64K
else ifneq (,$(filter gd32vf103%6t6 gd32vf103%6u6,$(CPU_MODEL)))
  RAM_LEN ?= 10K
  ROM_LEN ?= 32K
else ifneq (,$(filter gd32vf103%4t6 gd32vf103%4u6,$(CPU_MODEL)))
  RAM_LEN ?= 6K
  ROM_LEN ?= 16K
else
  $(error CPU model $(CPU_MODEL) not supported)
endif

ROM_LEN := $(shell printf "0x%x" $$(($(ROM_LEN:%K=%*1024))))

RIOTBOOT_HDR_LEN ?= 0x400
ifneq (,$(filter usbus_dfu tinyusb_dfu,$(USEMODULE)))
  RIOTBOOT_LEN ?= 0x4000
else
  RIOTBOOT_LEN ?= 0x1000
endif

LINKER_SCRIPT ?= riscv.ld

CFLAGS += -DCPU_MODEL_$(call uppercase_and_underscore,$(CPU_MODEL))

include $(RIOTCPU)/riscv_common/Makefile.include