1#
2# Makefile for Broadcom BCM947XX boards
3#
4# Copyright 2001-2003, Broadcom Corporation
5# All Rights Reserved.
6# 
7# THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
8# KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
9# SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
10# FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
11#
12# Copyright 2004  Manuel Novoa III <mjn3@codepoet.org>
13#   Modified to support bzip'd kernels.
14#   Of course, it would be better to integrate bunzip capability into CFE.
15#
16# Copyright 2005  Oleg I. Vdovikin <oleg@cs.msu.su>
17#   Cleaned up, modified for lzma support, removed from kernel
18#
19
20TEXT_START	:= 0x80010000
21BZ_TEXT_START	:= 0x80300000
22
23OBJCOPY		:= $(CROSS_COMPILE)objcopy -O binary -R .reginfo -R .note -R .comment -R .mdebug -S
24
25CFLAGS		= -D__KERNEL__ -Wall -Wstrict-prototypes -Wno-trigraphs -Os \
26		  -fno-strict-aliasing -fno-common -fomit-frame-pointer -G 0 -mno-abicalls -fno-pic \
27		  -ffunction-sections -pipe -mlong-calls -fno-common \
28		  -mabi=32 -march=mips32 -Wa,-32 -Wa,-march=mips32 -Wa,-mips32 -Wa,--trap
29CFLAGS		+= -DLOADADDR=$(TEXT_START) -D_LZMA_IN_CB
30
31ASFLAGS		= $(CFLAGS) -D__ASSEMBLY__ -DBZ_TEXT_START=$(BZ_TEXT_START)
32
33SEDFLAGS	:= s/BZ_TEXT_START/$(BZ_TEXT_START)/;s/TEXT_START/$(TEXT_START)/
34
35OBJECTS		:= head.o data.o
36
37all: loader.gz loader.elf
38
39# Don't build dependencies, this may die if $(CC) isn't gcc
40dep:
41
42install:
43
44loader.gz: loader
45	gzip -nc9 $< > $@
46
47loader.elf: loader.o
48	cp $< $@
49
50loader: loader.o
51	$(OBJCOPY) $< $@
52
53loader.o: loader.lds $(OBJECTS)
54	$(LD) -static --gc-sections -no-warn-mismatch -T loader.lds -o $@ $(OBJECTS)
55
56loader.lds: loader.lds.in Makefile
57	@sed "$(SEDFLAGS)" < $< > $@
58
59data.o: data.lds decompress.image
60	$(LD) -no-warn-mismatch -T data.lds -r -o $@ -b binary decompress.image -b elf32-tradlittlemips
61
62data.lds:
63	@echo "SECTIONS { .data : { code_start = .; *(.data) code_stop = .; }}" > $@
64
65decompress.image: decompress
66	$(OBJCOPY) $< $@
67
68decompress: decompress.lds decompress.o LzmaDecode.o
69	$(LD) -static --gc-sections -no-warn-mismatch -T decompress.lds -o $@ decompress.o LzmaDecode.o
70
71decompress.lds: decompress.lds.in Makefile
72	@sed "$(SEDFLAGS)" < $< > $@
73
74mrproper: clean
75
76clean:
77	rm -f loader.gz loader decompress *.lds *.o *.image
78