Merge branch 'master' of git://www.denx.de/git/u-boot-imx
[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 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
49
50 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
51
52 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
53 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
54
55 libs-$(CONFIG_SPL_FRAMEWORK) += common/spl/
56 libs-y += common/init/
57
58 # Special handling for a few options which support SPL/TPL
59 ifeq ($(CONFIG_TPL_BUILD),y)
60 libs-$(CONFIG_TPL_LIBCOMMON_SUPPORT) += common/ cmd/
61 libs-$(CONFIG_TPL_LIBGENERIC_SUPPORT) += lib/
62 else
63 libs-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/ cmd/
64 libs-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/
65 endif
66
67 libs-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/
68 libs-y += drivers/
69 libs-$(CONFIG_SPL_USB_GADGET_SUPPORT) += drivers/usb/dwc3/
70 libs-y += dts/
71 libs-y += fs/
72 libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/
73 libs-$(CONFIG_SPL_NET_SUPPORT) += net/
74
75 head-y          := $(addprefix $(obj)/,$(head-y))
76 libs-y          := $(addprefix $(obj)/,$(libs-y))
77 u-boot-spl-dirs := $(patsubst %/,%,$(filter %/, $(libs-y)))
78
79 libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
80
81 # Add GCC lib
82 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
83 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
84 PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
85 endif
86
87 u-boot-spl-init := $(head-y)
88 u-boot-spl-main := $(libs-y)
89 ifdef CONFIG_SPL_OF_PLATDATA
90 u-boot-spl-platdata := $(obj)/dts/dt-platdata.o
91 endif
92
93 # Linker Script
94 ifdef CONFIG_SPL_LDSCRIPT
95 # need to strip off double quotes
96 LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%))
97 endif
98
99 ifeq ($(wildcard $(LDSCRIPT)),)
100         LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-spl.lds
101 endif
102 ifeq ($(wildcard $(LDSCRIPT)),)
103         LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-spl.lds
104 endif
105 ifeq ($(wildcard $(LDSCRIPT)),)
106         LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot-spl.lds
107 endif
108 ifeq ($(wildcard $(LDSCRIPT)),)
109 $(error could not find linker script)
110 endif
111
112 # Special flags for CPP when processing the linker script.
113 # Pass the version down so we can handle backwards compatibility
114 # on the fly.
115 LDPPFLAGS += \
116         -include $(srctree)/include/u-boot/u-boot.lds.h \
117         -include $(objtree)/include/config.h \
118         -DCPUDIR=$(CPUDIR) \
119         $(shell $(LD) --version | \
120           sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
121
122 MKIMAGEOUTPUT ?= /dev/null
123
124 quiet_cmd_mkimage = MKIMAGE $@
125 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
126         $(if $(KBUILD_VERBOSE:1=), >$(MKIMAGEOUTPUT))
127
128 MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE)
129
130 MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE)
131
132 MLO MLO.byteswap: $(obj)/u-boot-spl.bin FORCE
133         $(call if_changed,mkimage)
134
135 ifeq ($(CONFIG_SYS_SOC),"at91")
136 MKIMAGEFLAGS_boot.bin = -T atmelimage
137
138 ifeq ($(CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER),y)
139 MKIMAGEFLAGS_boot.bin += -n $(shell $(obj)/../tools/atmel_pmecc_params)
140
141 boot.bin: $(obj)/../tools/atmel_pmecc_params
142 endif
143
144 boot.bin: $(obj)/u-boot-spl.bin FORCE
145         $(call if_changed,mkimage)
146 else
147 ifdef CONFIG_ARCH_ZYNQ
148 MKIMAGEFLAGS_boot.bin = -T zynqimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE)
149 endif
150 ifdef CONFIG_ARCH_ZYNQMP
151 MKIMAGEFLAGS_boot.bin = -T zynqmpimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE)
152 endif
153
154 spl/boot.bin: $(obj)/u-boot-spl.bin FORCE
155         $(call if_changed,mkimage)
156 endif
157
158 ALL-y   += $(obj)/$(SPL_BIN).bin
159
160 ifdef CONFIG_SAMSUNG
161 ALL-y   += $(obj)/$(BOARD)-spl.bin
162 endif
163
164 ifdef CONFIG_ARCH_SOCFPGA
165 ALL-y   += $(obj)/$(SPL_BIN).sfp
166 endif
167
168 ifdef CONFIG_ARCH_SUNXI
169 ALL-y   += $(obj)/sunxi-spl.bin
170 endif
171
172 ifeq ($(CONFIG_SYS_SOC),"at91")
173 ALL-y   += boot.bin
174 endif
175
176 ALL-$(CONFIG_ARCH_ZYNQ)         += $(obj)/boot.bin
177 ALL-$(CONFIG_ARCH_ZYNQMP)       += $(obj)/boot.bin
178
179 all:    $(ALL-y)
180
181 quiet_cmd_cat = CAT     $@
182 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
183
184 quiet_cmd_copy = COPY    $@
185       cmd_copy = cp $< $@
186
187 ifeq ($(CONFIG_SPL_OF_CONTROL)$(CONFIG_OF_SEPARATE)$(CONFIG_SPL_OF_PLATDATA),yy)
188 $(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN)-nodtb.bin $(obj)/$(SPL_BIN)-pad.bin \
189                 $(obj)/$(SPL_BIN).dtb FORCE
190         $(call if_changed,cat)
191
192 $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-dtb.bin FORCE
193         $(call if_changed,copy)
194 else
195 $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-nodtb.bin FORCE
196         $(call if_changed,copy)
197 endif
198
199 # Create a file that pads from the end of u-boot-spl-nodtb.bin to bss_end
200 $(obj)/$(SPL_BIN)-pad.bin: $(obj)/$(SPL_BIN)
201         @bss_size_str=$(shell $(NM) $< | awk 'BEGIN {size = 0} /__bss_size/ {size = $$1} END {print "ibase=16; " toupper(size)}' | bc); \
202         dd if=/dev/zero of=$@ bs=1 count=$${bss_size_str} 2>/dev/null;
203
204 # Pass the original device tree file through fdtgrep twice. The first pass
205 # removes any unwanted nodes (i.e. those which don't have the
206 # 'u-boot,dm-pre-reloc' property and thus are not needed by SPL. The second
207 # pass removes various unused properties from the remaining nodes.
208 # The output is typically a much smaller device tree file.
209 quiet_cmd_fdtgrep = FDTGREP $@
210       cmd_fdtgrep = $(objtree)/tools/fdtgrep -b u-boot,dm-pre-reloc -RT $< \
211                 -n /chosen -O dtb | \
212         $(objtree)/tools/fdtgrep -r -O dtb - -o $@ \
213                 $(addprefix -P ,$(subst $\",,$(CONFIG_OF_SPL_REMOVE_PROPS)))
214
215 $(obj)/$(SPL_BIN).dtb: dts/dt.dtb $(objtree)/tools/fdtgrep FORCE
216         $(call if_changed,fdtgrep)
217
218 pythonpath = PYTHONPATH=tools
219
220 quiet_cmd_dtocc = DTOC C  $@
221 cmd_dtocc = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ platdata
222
223 quiet_cmd_dtoch = DTOC H  $@
224 cmd_dtoch = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ struct
225
226 quiet_cmd_plat = PLAT    $@
227 cmd_plat = $(CC) $(c_flags) -c $< -o $@
228
229 $(obj)/dts/dt-platdata.o: $(obj)/dts/dt-platdata.c include/generated/dt-structs.h
230         $(call if_changed,plat)
231
232 PHONY += dts_dir
233 dts_dir:
234         $(shell [ -d $(obj)/dts ] || mkdir -p $(obj)/dts)
235
236 include/generated/dt-structs.h: $(obj)/$(SPL_BIN).dtb dts_dir dtoc
237         $(call if_changed,dtoch)
238
239 $(obj)/dts/dt-platdata.c: $(obj)/$(SPL_BIN).dtb dts_dir dtoc
240         $(call if_changed,dtocc)
241
242 dtoc: #$(objtree)/tools/_libfdt.so
243
244 ifdef CONFIG_SAMSUNG
245 ifdef CONFIG_VAR_SIZE_SPL
246 VAR_SIZE_PARAM = --vs
247 else
248 VAR_SIZE_PARAM =
249 endif
250 $(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin
251         $(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\
252         $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\
253         $(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@
254 endif
255
256 quiet_cmd_objcopy = OBJCOPY $@
257 cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
258
259 OBJCOPYFLAGS_$(SPL_BIN)-nodtb.bin = $(SPL_OBJCFLAGS) -O binary
260
261 $(obj)/$(SPL_BIN)-nodtb.bin: $(obj)/$(SPL_BIN) FORCE
262         $(call if_changed,objcopy)
263
264 LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
265 ifneq ($(CONFIG_SPL_TEXT_BASE),)
266 LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE)
267 endif
268
269 MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage
270 $(obj)/$(SPL_BIN).sfp: $(obj)/$(SPL_BIN).bin FORCE
271         $(call if_changed,mkimage)
272
273 quiet_cmd_mksunxiboot = MKSUNXI $@
274 cmd_mksunxiboot = $(objtree)/tools/mksunxiboot $< $@
275 $(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin FORCE
276         $(call if_changed,mksunxiboot)
277
278 # Rule to link u-boot-spl
279 # May be overridden by arch/$(ARCH)/config.mk
280 quiet_cmd_u-boot-spl ?= LD      $@
281       cmd_u-boot-spl ?= (cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \
282                        $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \
283                        $(patsubst $(obj)/%,%,$(u-boot-spl-main))  \
284                        $(patsubst $(obj)/%,%,$(u-boot-spl-platdata)) \
285                        --end-group \
286                        $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN))
287
288 $(obj)/$(SPL_BIN): $(u-boot-spl-platdata) $(u-boot-spl-init) \
289                 $(u-boot-spl-main) $(obj)/u-boot-spl.lds FORCE
290         $(call if_changed,u-boot-spl)
291
292 $(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ;
293
294 PHONY += $(u-boot-spl-dirs)
295 $(u-boot-spl-dirs): $(u-boot-spl-platdata)
296         $(Q)$(MAKE) $(build)=$@
297
298 quiet_cmd_cpp_lds = LDS     $@
299 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
300                 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
301
302 $(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE
303         $(call if_changed_dep,cpp_lds)
304
305 # read all saved command lines
306
307 targets := $(wildcard $(sort $(targets)))
308 cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
309
310 ifneq ($(cmd_files),)
311   $(cmd_files): ;       # Do not try to update included dependency files
312   include $(cmd_files)
313 endif
314
315 PHONY += FORCE
316 FORCE:
317
318 # Declare the contents of the .PHONY variable as phony.  We keep that
319 # information in a variable so we can use it in if_changed and friends.
320 .PHONY: $(PHONY)