Merge branch 'next' of git://git.denx.de/u-boot-blackfin
[platform/kernel/u-boot.git] / scripts / Makefile.spl
1 #
2 # (C) Copyright 2000-2011
3 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 #
5 # (C) Copyright 2011
6 # Daniel Schwierzeck, daniel.schwierzeck@googlemail.com.
7 #
8 # (C) Copyright 2011
9 # Texas Instruments Incorporated - http://www.ti.com/
10 # Aneesh V <aneesh@ti.com>
11 #
12 # SPDX-License-Identifier:      GPL-2.0+
13 #
14 # Based on top-level Makefile.
15 #
16
17 src := $(obj)
18
19 # Create output directory if not already present
20 _dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj))
21
22 include $(srctree)/scripts/Kbuild.include
23
24 -include include/config/auto.conf
25 -include $(obj)/include/autoconf.mk
26
27 KBUILD_CPPFLAGS += -DCONFIG_SPL_BUILD
28 ifeq ($(CONFIG_TPL_BUILD),y)
29 KBUILD_CPPFLAGS += -DCONFIG_TPL_BUILD
30 endif
31
32 ifeq ($(CONFIG_TPL_BUILD),y)
33 SPL_BIN := u-boot-tpl
34 else
35 SPL_BIN := u-boot-spl
36 endif
37
38 include $(srctree)/config.mk
39 include $(srctree)/arch/$(ARCH)/Makefile
40
41 # Enable garbage collection of un-used sections for SPL
42 KBUILD_CFLAGS += -ffunction-sections -fdata-sections
43 LDFLAGS_FINAL += --gc-sections
44
45 # FIX ME
46 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
47                                                         $(NOSTDINC_FLAGS)
48
49 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
50
51 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
52 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
53
54 libs-$(CONFIG_SPL_FRAMEWORK) += common/spl/
55 libs-y += common/init/
56 libs-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/
57 libs-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/
58 libs-y += drivers/
59 libs-y += fs/
60 libs-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/
61 libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/
62 libs-$(CONFIG_SPL_NET_SUPPORT) += net/
63
64 head-y          := $(addprefix $(obj)/,$(head-y))
65 libs-y          := $(addprefix $(obj)/,$(libs-y))
66 u-boot-spl-dirs := $(patsubst %/,%,$(filter %/, $(libs-y)))
67
68 libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
69
70 # Add GCC lib
71 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
72 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
73 PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
74 endif
75
76 u-boot-spl-init := $(head-y)
77 u-boot-spl-main := $(libs-y)
78
79 # Linker Script
80 ifdef CONFIG_SPL_LDSCRIPT
81 # need to strip off double quotes
82 LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%))
83 endif
84
85 ifeq ($(wildcard $(LDSCRIPT)),)
86         LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-spl.lds
87 endif
88 ifeq ($(wildcard $(LDSCRIPT)),)
89         LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-spl.lds
90 endif
91 ifeq ($(wildcard $(LDSCRIPT)),)
92         LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot-spl.lds
93 endif
94 ifeq ($(wildcard $(LDSCRIPT)),)
95 $(error could not find linker script)
96 endif
97
98 # Special flags for CPP when processing the linker script.
99 # Pass the version down so we can handle backwards compatibility
100 # on the fly.
101 LDPPFLAGS += \
102         -include $(srctree)/include/u-boot/u-boot.lds.h \
103         -include $(objtree)/include/config.h \
104         -DCPUDIR=$(CPUDIR) \
105         $(shell $(LD) --version | \
106           sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
107
108 quiet_cmd_mkimage = MKIMAGE $@
109 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
110         $(if $(KBUILD_VERBOSE:1=), >/dev/null)
111
112 MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE)
113
114 MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE)
115
116 MLO MLO.byteswap: $(obj)/u-boot-spl.bin
117         $(call if_changed,mkimage)
118
119 MKIMAGEFLAGS_boot.bin = -T atmelimage
120
121 ifeq ($(CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER),y)
122 MKIMAGEFLAGS_boot.bin += -n $(shell $(obj)/../tools/atmel_pmecc_params)
123
124 boot.bin: $(obj)/../tools/atmel_pmecc_params
125 endif
126
127 boot.bin: $(obj)/u-boot-spl.bin
128         $(call if_changed,mkimage)
129
130 ALL-y   += $(obj)/$(SPL_BIN).bin $(obj)/$(SPL_BIN).cfg
131
132 ifdef CONFIG_SPL_OF_CONTROL
133 ALL-$(CONFIG_OF_SEPARATE) += $(obj)/$(SPL_BIN)-pad.bin $(obj)/$(SPL_BIN)-dtb.bin
134 endif
135
136 ifdef CONFIG_SAMSUNG
137 ALL-y   += $(obj)/$(BOARD)-spl.bin
138 endif
139
140 ifdef CONFIG_ARCH_SOCFPGA
141 ALL-y   += $(obj)/$(SPL_BIN)-dtb.sfp
142 endif
143
144 ifdef CONFIG_SUNXI
145 ALL-y   += $(obj)/sunxi-spl.bin
146 endif
147
148 ifeq ($(CONFIG_SYS_SOC),"at91")
149 ALL-y   += boot.bin
150 endif
151
152 all:    $(ALL-y)
153
154 quiet_cmd_cat = CAT     $@
155 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
156
157 $(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN).bin $(obj)/$(SPL_BIN)-pad.bin \
158                 $(obj)/$(SPL_BIN).dtb FORCE
159         $(call if_changed,cat)
160
161 # Create a file that pads from the end of u-boot-spl.bin to bss_end
162 $(obj)/$(SPL_BIN)-pad.bin: $(obj)/$(SPL_BIN)
163         @bss_size_str=$(shell $(NM) $< | awk 'BEGIN {size = 0} /__bss_size/ {size = $$1} END {print "ibase=16; " toupper(size)}' | bc); \
164         dd if=/dev/zero of=$@ bs=1 count=$${bss_size_str} 2>/dev/null;
165
166 # Pass the original device tree file through fdtgrep twice. The first pass
167 # removes any unwanted nodes (i.e. those which don't have the
168 # 'u-boot,dm-pre-reloc' property and thus are not needed by SPL. The second
169 # pass removes various unused properties from the remaining nodes.
170 # The output is typically a much smaller device tree file.
171 quiet_cmd_fdtgrep = FDTGREP $@
172       cmd_fdtgrep = $(objtree)/tools/fdtgrep -b u-boot,dm-pre-reloc -RT $< \
173                 -n /chosen -O dtb | \
174         $(objtree)/tools/fdtgrep -r -O dtb - -o $@ \
175                 $(addprefix -P ,$(subst $\",,$(CONFIG_OF_SPL_REMOVE_PROPS)))
176
177 $(obj)/$(SPL_BIN).dtb: dts/dt.dtb
178         $(call cmd,fdtgrep)
179
180 quiet_cmd_cpp_cfg = CFG     $@
181 cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
182         -DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
183
184 $(obj)/$(SPL_BIN).cfg:  include/config.h
185         $(call if_changed,cpp_cfg)
186
187 ifdef CONFIG_SAMSUNG
188 ifdef CONFIG_VAR_SIZE_SPL
189 VAR_SIZE_PARAM = --vs
190 else
191 VAR_SIZE_PARAM =
192 endif
193 $(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin
194         $(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\
195         $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\
196         $(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@
197 endif
198
199 quiet_cmd_objcopy = OBJCOPY $@
200 cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
201
202 OBJCOPYFLAGS_$(SPL_BIN).bin = $(SPL_OBJCFLAGS) -O binary
203
204 $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN) FORCE
205         $(call if_changed,objcopy)
206
207 LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
208 ifneq ($(CONFIG_SPL_TEXT_BASE),)
209 LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE)
210 endif
211
212 ifdef CONFIG_ARCH_SOCFPGA
213 MKIMAGEFLAGS_$(SPL_BIN)-dtb.sfp = -T socfpgaimage
214 $(obj)/$(SPL_BIN)-dtb.sfp: $(obj)/$(SPL_BIN)-dtb.bin FORCE
215         $(call if_changed,mkimage)
216 endif
217
218 ifdef CONFIG_SUNXI
219 quiet_cmd_mksunxiboot = MKSUNXI $@
220 cmd_mksunxiboot = $(objtree)/tools/mksunxiboot $< $@
221 $(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin
222         $(call if_changed,mksunxiboot)
223 endif
224
225 quiet_cmd_u-boot-spl = LD      $@
226       cmd_u-boot-spl = (cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \
227                        $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \
228                        $(patsubst $(obj)/%,%,$(u-boot-spl-main)) --end-group \
229                        $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN))
230
231 $(obj)/$(SPL_BIN): $(u-boot-spl-init) $(u-boot-spl-main) $(obj)/u-boot-spl.lds FORCE
232         $(call if_changed,u-boot-spl)
233
234 $(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ;
235
236 PHONY += $(u-boot-spl-dirs)
237 $(u-boot-spl-dirs):
238         $(Q)$(MAKE) $(build)=$@
239
240 quiet_cmd_cpp_lds = LDS     $@
241 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
242                 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
243
244 $(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE
245         $(call if_changed_dep,cpp_lds)
246
247 # read all saved command lines
248
249 targets := $(wildcard $(sort $(targets)))
250 cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
251
252 ifneq ($(cmd_files),)
253   $(cmd_files): ;       # Do not try to update included dependency files
254   include $(cmd_files)
255 endif
256
257 PHONY += FORCE
258 FORCE:
259
260 # Declare the contents of the .PHONY variable as phony.  We keep that
261 # information in a variable so we can use it in if_changed and friends.
262 .PHONY: $(PHONY)