xref: /openbmc/u-boot/scripts/Makefile.spl (revision 83bf0057)
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/
57libs-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/
58libs-y += drivers/
59libs-y += fs/
60libs-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/
61libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/
62libs-$(CONFIG_SPL_NET_SUPPORT) += net/
63
64head-y		:= $(addprefix $(obj)/,$(head-y))
65libs-y		:= $(addprefix $(obj)/,$(libs-y))
66u-boot-spl-dirs	:= $(patsubst %/,%,$(filter %/, $(libs-y)))
67
68libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
69
70# Add GCC lib
71ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
72PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
73PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
74endif
75
76u-boot-spl-init := $(head-y)
77u-boot-spl-main := $(libs-y)
78
79# Linker Script
80ifdef CONFIG_SPL_LDSCRIPT
81# need to strip off double quotes
82LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%))
83endif
84
85ifeq ($(wildcard $(LDSCRIPT)),)
86	LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-spl.lds
87endif
88ifeq ($(wildcard $(LDSCRIPT)),)
89	LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-spl.lds
90endif
91ifeq ($(wildcard $(LDSCRIPT)),)
92	LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot-spl.lds
93endif
94ifeq ($(wildcard $(LDSCRIPT)),)
95$(error could not find linker script)
96endif
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.
101LDPPFLAGS += \
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
108quiet_cmd_mkimage = MKIMAGE $@
109cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
110	$(if $(KBUILD_VERBOSE:1=), >/dev/null)
111
112MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE)
113
114MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE)
115
116MLO MLO.byteswap: $(obj)/u-boot-spl.bin
117	$(call if_changed,mkimage)
118
119MKIMAGEFLAGS_boot.bin = -T atmelimage
120
121ifeq ($(CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER),y)
122MKIMAGEFLAGS_boot.bin += -n $(shell $(obj)/../tools/atmel_pmecc_params)
123
124boot.bin: $(obj)/../tools/atmel_pmecc_params
125endif
126
127boot.bin: $(obj)/u-boot-spl.bin
128	$(call if_changed,mkimage)
129
130ALL-y	+= $(obj)/$(SPL_BIN).bin $(obj)/$(SPL_BIN).cfg
131
132ALL-$(CONFIG_OF_SEPARATE) += $(obj)/$(SPL_BIN)-pad.bin $(obj)/$(SPL_BIN)-dtb.bin
133
134ifdef CONFIG_SAMSUNG
135ALL-y	+= $(obj)/$(BOARD)-spl.bin
136endif
137
138ifdef CONFIG_ARCH_SOCFPGA
139ALL-y	+= $(obj)/$(SPL_BIN)-dtb.sfp
140endif
141
142ifdef CONFIG_SUNXI
143ALL-y	+= $(obj)/sunxi-spl.bin
144endif
145
146ifeq ($(CONFIG_SYS_SOC),"at91")
147ALL-y	+= boot.bin
148endif
149
150all:	$(ALL-y)
151
152quiet_cmd_cat = CAT     $@
153cmd_cat = cat $(filter-out $(PHONY), $^) > $@
154
155$(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN).bin $(obj)/$(SPL_BIN)-pad.bin \
156		$(obj)/$(SPL_BIN).dtb FORCE
157	$(call if_changed,cat)
158
159# Create a file that pads from the end of u-boot-spl.bin to bss_end
160$(obj)/$(SPL_BIN)-pad.bin: $(obj)/$(SPL_BIN)
161	@bss_size_str=$(shell $(NM) $< | awk 'BEGIN {size = 0} /__bss_size/ {size = $$1} END {print "ibase=16; " toupper(size)}' | bc); \
162	dd if=/dev/zero of=$@ bs=1 count=$${bss_size_str} 2>/dev/null;
163
164# Pass the original device tree file through fdtgrep twice. The first pass
165# removes any unwanted nodes (i.e. those which don't have the
166# 'u-boot,dm-pre-reloc' property and thus are not needed by SPL. The second
167# pass removes various unused properties from the remaining nodes.
168# The output is typically a much smaller device tree file.
169quiet_cmd_fdtgrep = FDTGREP $@
170      cmd_fdtgrep = $(objtree)/tools/fdtgrep -b u-boot,dm-pre-reloc -RT $< \
171		-n /chosen -O dtb | \
172	$(objtree)/tools/fdtgrep -r -O dtb - -o $@ \
173		$(addprefix -P ,$(subst $\",,$(CONFIG_OF_SPL_REMOVE_PROPS)))
174
175$(obj)/$(SPL_BIN).dtb: dts/dt.dtb
176	$(call cmd,fdtgrep)
177
178quiet_cmd_cpp_cfg = CFG     $@
179cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
180	-DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
181
182$(obj)/$(SPL_BIN).cfg:	include/config.h
183	$(call if_changed,cpp_cfg)
184
185ifdef CONFIG_SAMSUNG
186ifdef CONFIG_VAR_SIZE_SPL
187VAR_SIZE_PARAM = --vs
188else
189VAR_SIZE_PARAM =
190endif
191$(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin
192	$(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\
193	$(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\
194	$(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@
195endif
196
197quiet_cmd_objcopy = OBJCOPY $@
198cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
199
200OBJCOPYFLAGS_$(SPL_BIN).bin = $(SPL_OBJCFLAGS) -O binary
201
202$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN) FORCE
203	$(call if_changed,objcopy)
204
205LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
206ifneq ($(CONFIG_SPL_TEXT_BASE),)
207LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE)
208endif
209
210ifdef CONFIG_ARCH_SOCFPGA
211MKIMAGEFLAGS_$(SPL_BIN)-dtb.sfp = -T socfpgaimage
212$(obj)/$(SPL_BIN)-dtb.sfp: $(obj)/$(SPL_BIN)-dtb.bin FORCE
213	$(call if_changed,mkimage)
214endif
215
216ifdef CONFIG_SUNXI
217quiet_cmd_mksunxiboot = MKSUNXI $@
218cmd_mksunxiboot = $(objtree)/tools/mksunxiboot $< $@
219$(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin
220	$(call if_changed,mksunxiboot)
221endif
222
223quiet_cmd_u-boot-spl = LD      $@
224      cmd_u-boot-spl = (cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \
225		       $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \
226		       $(patsubst $(obj)/%,%,$(u-boot-spl-main)) --end-group \
227		       $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN))
228
229$(obj)/$(SPL_BIN): $(u-boot-spl-init) $(u-boot-spl-main) $(obj)/u-boot-spl.lds FORCE
230	$(call if_changed,u-boot-spl)
231
232$(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ;
233
234PHONY += $(u-boot-spl-dirs)
235$(u-boot-spl-dirs):
236	$(Q)$(MAKE) $(build)=$@
237
238quiet_cmd_cpp_lds = LDS     $@
239cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
240		-D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
241
242$(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE
243	$(call if_changed_dep,cpp_lds)
244
245# read all saved command lines
246
247targets := $(wildcard $(sort $(targets)))
248cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
249
250ifneq ($(cmd_files),)
251  $(cmd_files): ;	# Do not try to update included dependency files
252  include $(cmd_files)
253endif
254
255PHONY += FORCE
256FORCE:
257
258# Declare the contents of the .PHONY variable as phony.  We keep that
259# information in a variable so we can use it in if_changed and friends.
260.PHONY: $(PHONY)
261