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