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