# Slot size is determined by "((total_flash_size - RIOTBOOT_LEN) / 2)".
# If RIOTBOOT_LEN uses an uneven number of flashpages, the remainder of the
# flash cannot be divided by two slots while staying FLASHPAGE_SIZE aligned.
ifneq (,$(filter usbus_dfu tinyusb_dfu,$(USEMODULE)))
  RIOTBOOT_LEN ?= 0x4000
else
  RIOTBOOT_LEN ?= 0x2000
endif

# Export internal ROM alignment and slot sizes for bootloader support
export MCUBOOT_IMAGE_ALIGN = 8
export MCUBOOT_SLOT0_SIZE = 0x8000
export MCUBOOT_SLOT1_SIZE = 0x3C000
export MCUBOOT_SLOT2_SIZE = 0x3C000

# Set ROM and RAM lengths according to CPU model
ifneq (,$(filter nrf52805xxaa nrf52810xxaa nrf52811xxaa,$(CPU_MODEL)))
  ROM_LEN ?= 0x30000
  RAM_LEN ?= 0x6000
endif
ifneq (,$(filter nrf52820xxaa,$(CPU_MODEL)))
  ROM_LEN ?= 0x40000
  RAM_LEN ?= 0x8000
endif
ifneq (,$(filter nrf52832xxaa,$(CPU_MODEL)))
  ROM_LEN ?= 0x80000
  RAM_LEN ?= 0x10000
endif
ifneq (,$(filter nrf52833xxaa,$(CPU_MODEL)))
  ROM_LEN ?= 0x80000
  RAM_LEN ?= 0x20000
endif
ifneq (,$(filter nrf52840xxaa,$(CPU_MODEL)))
  ROM_LEN ?= 0x100000
  RAM_LEN ?= 0x40000
endif

# Set the target for the JLink programmer for flashing, JLINK expects an
# underscore in the target, like "nrf52832_xxaa".
# Boards that do not use a JLink ignore the flag.
JLINK_DEVICE = $(subst xx,_xx,$(CPU_MODEL))

VECTORS_O ?= $(BINDIR)/nrf52_vectors/vectors_$(CPU_MODEL).o

include $(RIOTCPU)/nrf5x_common/Makefile.include
include $(RIOTMAKE)/arch/cortexm.inc.mk