# environment vaiables read:
# BOARD = {ml402, denano}
# TLB = {no, yes}
# ENDIANESS = {eb, el}
# DEBUGGER = {gdb, mips, rom}

BOARD ?= ml402
TLB ?= no
ENDIANESS ?= eb
DEBUGGER ?= mips

		
ifeq ($(ENDIANESS),el)
  ENDIAN_FLAGS=-EL
else
  ENDIAN_FLAGS=-EB
endif

ifeq ($(DEBUGGER),gdb)
	DBG_FLAGS := -DWITH_GDB_STUB
	DBG_OBJ := gdb_stub.o
endif
ifeq ($(DEBUGGER),mips)
	DBG_FLAGS := 
	DBG_OBJ := mips_dbg.o mips_dis.o
endif
ifeq ($(DEBUGGER),rom)
	DBG_FLAGS := -DWITH_ROM_DEBUGGER
endif

  
CFLAGS=$(ENDIAN_FLAGS) -ffunction-sections -fdata-sections -g -msoft-float -O2 -march=r3000 -I. -Iboards/$(BOARD) -D$(BOARD) $(DBG_FLAGS)

ifeq ($(TLB),yes)
  CFLAGS+=-DSYS_IO_BASE=0xAC000000 -DSDRAM_BASE=0x80000000 -DFLASH_BASE_IO=0xA4000000 -DFLASH_BASE_MEM=0x88000000
else
  CFLAGS+=-DSYS_IO_BASE=0xA0000000 -DSDRAM_BASE=0x40000000 -DFLASH_BASE_IO=0xA4000000 -DFLASH_BASE_MEM=0x00000000
endif

BUILD_DIR=./build/$(BOARD)/$(ENDIANESS)

AS=mips-elf-as
AR=mips-elf-ar
CC=mips-elf-gcc
LD=mips-elf-ld
OBJDUMP=mips-elf-objdump
OBJCOPY=mips-elf-objcopy
FLASHGEN=flashgen