xref: /openbmc/u-boot/scripts/Makefile.spl (revision 2f6ed3b8) 
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
17src := $(obj)
18
19# Create output directory if not already present
20_dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj))
21
22include $(srctree)/scripts/Kbuild.include
23
24-include include/config/auto.conf
25-include $(obj)/include/autoconf.mk
26
27KBUILD_CPPFLAGS += -DCONFIG_SPL_BUILD
28ifeq ($(CONFIG_TPL_BUILD),y)
29KBUILD_CPPFLAGS += -DCONFIG_TPL_BUILD
30endif
31
32ifeq ($(CONFIG_TPL_BUILD),y)
33SPL_BIN := u-boot-tpl
34else
35SPL_BIN := u-boot-spl
36endif
37
38include $(srctree)/config.mk
39include $(srctree)/arch/$(ARCH)/Makefile
40
41# Enable garbage collection of un-used sections for SPL
42KBUILD_CFLAGS += -ffunction-sections -fdata-sections
43LDFLAGS_FINAL += --gc-sections
44
45# FIX ME
46cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
47							$(NOSTDINC_FLAGS)
48
49HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
50
51libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
52libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
53
54libs-$(CONFIG_SPL_FRAMEWORK) += common/spl/
55libs-y += common/init/
56libs-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/ cmd/
57libs-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/
58libs-y += drivers/
59libs-y += dts/
60libs-y += fs/
61libs-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/
62libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/
63libs-$(CONFIG_SPL_NET_SUPPORT) += net/
64
65head-y		:= $(addprefix $(obj)/,$(head-y))
66libs-y		:= $(addprefix $(obj)/,$(libs-y))
67u-boot-spl-dirs	:= $(patsubst %/,%,$(filter %/, $(libs-y)))
68
69libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
70
71# Add GCC lib
72ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
73PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
74PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
75endif
76
77u-boot-spl-init := $(head-y)
78u-boot-spl-main := $(libs-y)
79
80# Linker Script
81ifdef CONFIG_SPL_LDSCRIPT
82# need to strip off double quotes
83LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%))
84endif
85
86ifeq ($(wildcard $(LDSCRIPT)),)
87	LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-spl.lds
88endif
89ifeq ($(wildcard $(LDSCRIPT)),)
90	LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-spl.lds
91endif
92ifeq ($(wildcard $(LDSCRIPT)),)
93	LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot-spl.lds
94endif
95ifeq ($(wildcard $(LDSCRIPT)),)
96$(error could not find linker script)
97endif
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.
102LDPPFLAGS += \
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
109quiet_cmd_mkimage = MKIMAGE $@
110cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
111	$(if $(KBUILD_VERBOSE:1=), >/dev/null)
112
113MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE)
114
115MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE)
116
117MLO MLO.byteswap: $(obj)/u-boot-spl.bin FORCE
118	$(call if_changed,mkimage)
119
120ifeq ($(CONFIG_SYS_SOC),"at91")
121MKIMAGEFLAGS_boot.bin = -T atmelimage
122
123ifeq ($(CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER),y)
124MKIMAGEFLAGS_boot.bin += -n $(shell $(obj)/../tools/atmel_pmecc_params)
125
126boot.bin: $(obj)/../tools/atmel_pmecc_params
127endif
128
129boot.bin: $(obj)/u-boot-spl.bin FORCE
130	$(call if_changed,mkimage)
131else
132MKIMAGEFLAGS_boot.bin = -T zynqimage
133
134spl/boot.bin: $(obj)/u-boot-spl.bin FORCE
135	$(call if_changed,mkimage)
136endif
137
138ALL-y	+= $(obj)/$(SPL_BIN).bin $(obj)/$(SPL_BIN).cfg
139
140ifdef CONFIG_SAMSUNG
141ALL-y	+= $(obj)/$(BOARD)-spl.bin
142endif
143
144ifdef CONFIG_ARCH_SOCFPGA
145ALL-y	+= $(obj)/$(SPL_BIN).sfp
146endif
147
148ifdef CONFIG_SUNXI
149ALL-y	+= $(obj)/sunxi-spl.bin
150endif
151
152ifeq ($(CONFIG_SYS_SOC),"at91")
153ALL-y	+= boot.bin
154endif
155
156ifdef CONFIG_ARCH_ZYNQ
157ALL-y	+= $(obj)/boot.bin
158endif
159
160all:	$(ALL-y)
161
162quiet_cmd_cat = CAT     $@
163cmd_cat = cat $(filter-out $(PHONY), $^) > $@
164
165quiet_cmd_copy = COPY    $@
166      cmd_copy = cp $< $@
167
168ifeq ($(CONFIG_SPL_OF_CONTROL),y)
169$(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN)-nodtb.bin $(obj)/$(SPL_BIN)-pad.bin \
170		$(obj)/$(SPL_BIN).dtb FORCE
171	$(call if_changed,cat)
172
173$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-dtb.bin FORCE
174	$(call if_changed,copy)
175else
176$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-nodtb.bin FORCE
177	$(call if_changed,copy)
178endif
179
180# Create a file that pads from the end of u-boot-spl-nodtb.bin to bss_end
181$(obj)/$(SPL_BIN)-pad.bin: $(obj)/$(SPL_BIN)
182	@bss_size_str=$(shell $(NM) $< | awk 'BEGIN {size = 0} /__bss_size/ {size = $$1} END {print "ibase=16; " toupper(size)}' | bc); \
183	dd if=/dev/zero of=$@ bs=1 count=$${bss_size_str} 2>/dev/null;
184
185# Pass the original device tree file through fdtgrep twice. The first pass
186# removes any unwanted nodes (i.e. those which don't have the
187# 'u-boot,dm-pre-reloc' property and thus are not needed by SPL. The second
188# pass removes various unused properties from the remaining nodes.
189# The output is typically a much smaller device tree file.
190quiet_cmd_fdtgrep = FDTGREP $@
191      cmd_fdtgrep = $(objtree)/tools/fdtgrep -b u-boot,dm-pre-reloc -RT $< \
192		-n /chosen -O dtb | \
193	$(objtree)/tools/fdtgrep -r -O dtb - -o $@ \
194		$(addprefix -P ,$(subst $\",,$(CONFIG_OF_SPL_REMOVE_PROPS)))
195
196$(obj)/$(SPL_BIN).dtb: dts/dt.dtb $(objtree)/tools/fdtgrep FORCE
197	$(call if_changed,fdtgrep)
198
199quiet_cmd_cpp_cfg = CFG     $@
200cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
201	-DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
202
203$(obj)/$(SPL_BIN).cfg:	include/config.h FORCE
204	$(call if_changed,cpp_cfg)
205
206ifdef CONFIG_SAMSUNG
207ifdef CONFIG_VAR_SIZE_SPL
208VAR_SIZE_PARAM = --vs
209else
210VAR_SIZE_PARAM =
211endif
212$(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin
213	$(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\
214	$(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\
215	$(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@
216endif
217
218quiet_cmd_objcopy = OBJCOPY $@
219cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
220
221OBJCOPYFLAGS_$(SPL_BIN)-nodtb.bin = $(SPL_OBJCFLAGS) -O binary
222
223$(obj)/$(SPL_BIN)-nodtb.bin: $(obj)/$(SPL_BIN) FORCE
224	$(call if_changed,objcopy)
225
226LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
227ifneq ($(CONFIG_SPL_TEXT_BASE),)
228LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE)
229endif
230
231MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage
232$(obj)/$(SPL_BIN).sfp: $(obj)/$(SPL_BIN).bin FORCE
233	$(call if_changed,mkimage)
234
235quiet_cmd_mksunxiboot = MKSUNXI $@
236cmd_mksunxiboot = $(objtree)/tools/mksunxiboot $< $@
237$(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin FORCE
238	$(call if_changed,mksunxiboot)
239
240quiet_cmd_u-boot-spl = LD      $@
241      cmd_u-boot-spl = (cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \
242		       $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \
243		       $(patsubst $(obj)/%,%,$(u-boot-spl-main)) --end-group \
244		       $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN))
245
246$(obj)/$(SPL_BIN): $(u-boot-spl-init) $(u-boot-spl-main) $(obj)/u-boot-spl.lds FORCE
247	$(call if_changed,u-boot-spl)
248
249$(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ;
250
251PHONY += $(u-boot-spl-dirs)
252$(u-boot-spl-dirs):
253	$(Q)$(MAKE) $(build)=$@
254
255quiet_cmd_cpp_lds = LDS     $@
256cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
257		-D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
258
259$(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE
260	$(call if_changed_dep,cpp_lds)
261
262# read all saved command lines
263
264targets := $(wildcard $(sort $(targets)))
265cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
266
267ifneq ($(cmd_files),)
268  $(cmd_files): ;	# Do not try to update included dependency files
269  include $(cmd_files)
270endif
271
272PHONY += FORCE
273FORCE:
274
275# Declare the contents of the .PHONY variable as phony.  We keep that
276# information in a variable so we can use it in if_changed and friends.
277.PHONY: $(PHONY)
278