| 1 | # |
| 2 | # Authors: Lucifer at Ingenic Semiconductor Inc. |
| 3 | # Xiangfu Liu <xiangfu@sharism.cc> |
| 4 | # |
| 5 | # This program is free software; you can redistribute it and/or |
| 6 | # modify it under the terms of the GNU General Public License |
| 7 | # as published by the Free Software Foundation; either version |
| 8 | # 2 of the License, or (at your option) any later version. |
| 9 | # |
| 10 | |
| 11 | XBURST_INCLUDE_PATH = -I../xburst_include -I../src |
| 12 | |
| 13 | ifeq ($(CROSS_COMPILE),) |
| 14 | $(warning CROSS_COMPILE variable not set, should point to .../mipsel-openwrt-linux-) |
| 15 | endif |
| 16 | |
| 17 | CC = $(CROSS_COMPILE)gcc |
| 18 | AR = $(CROSS_COMPILE)ar rcsv |
| 19 | LD = $(CROSS_COMPILE)ld |
| 20 | OBJCOPY = $(CROSS_COMPILE)objcopy |
| 21 | NM = $(CROSS_COMPILE)nm |
| 22 | OBJDUMP = $(CROSS_COMPILE)objdump |
| 23 | |
| 24 | DEVICE ?=NANONOTE |
| 25 | DEBUG_CFLAGS = -g -Wa,-a=$(basename $@).lst |
| 26 | # Wolfgang saw data corruptions in stage2 when dealing with ECC data on random writes |
| 27 | # to NAND. Disabling the unit-at-a-time optimization reproducibly fixed the bug. |
| 28 | # The compiler may be optimizing in a way that conflicts with how the hardware ECC |
| 29 | # registers work. Since other register accesses might be affected too it seems the best |
| 30 | # is to disable this optimization right now. |
| 31 | CFLAGS = -mips32 -O2 -fno-exceptions -fno-zero-initialized-in-bss \ |
| 32 | -ffunction-sections -fomit-frame-pointer -msoft-float -G 0 -fpie \ |
| 33 | $(XBURST_INCLUDE_PATH) -D$(DEVICE) |
| 34 | LDFLAGS = -nostdlib -T target.ld $(CFLAGS) |
| 35 | |
| 36 | OBJS = main.o udc.o cache.o serial.o boothandler.o nandflash_4740.o nandflash_4760.o |
| 37 | |
| 38 | all: xburst_stage2.elf |
| 39 | $(OBJCOPY) -O binary xburst_stage2.elf xburst_stage2.bin |
| 40 | chmod -x xburst_stage2.bin |
| 41 | $(OBJDUMP) -D xburst_stage2.elf > xburst_stage2.dump |
| 42 | $(NM) xburst_stage2.elf | sort > xburst_stage2.sym |
| 43 | $(OBJDUMP) -h xburst_stage2.elf > xburst_stage2.map |
| 44 | |
| 45 | xburst_stage2.elf: head.o $(OBJS) |
| 46 | $(CC) $(LDFLAGS) $^ -o $@ |
| 47 | |
| 48 | .c.o: |
| 49 | $(CC) $(CFLAGS) -o $@ -c $< |
| 50 | .S.o: |
| 51 | $(CC) $(CFLAGS) -o $@ -c $< |
| 52 | |
| 53 | clean: |
| 54 | rm -f $(addprefix xburst_stage2., bin dump elf map sym) |
| 55 | rm -f head.o $(OBJS) $(OBJS:.o=.lst) |
| 56 | |
