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Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +00001#
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#
Wolfgang Denk1a459662013-07-08 09:37:19 +020012# SPDX-License-Identifier: GPL-2.0+
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +000013#
14# Based on top-level Makefile.
15#
16
Masahiro Yamada9e414032014-02-04 17:24:24 +090017src := $(obj)
18
19# Create output directory if not already present
20_dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj))
21
Masahiro Yamadabf4b3de2014-02-04 17:24:18 +090022include $(srctree)/scripts/Kbuild.include
23
Masahiro Yamadae02ee252015-02-24 22:26:20 +090024-include include/config/auto.conf
Masahiro Yamada51148792014-07-30 14:08:17 +090025-include $(obj)/include/autoconf.mk
Masahiro Yamadae0d5d9f2014-02-04 17:24:22 +090026
Masahiro Yamadae02ee252015-02-24 22:26:20 +090027KBUILD_CPPFLAGS += -DCONFIG_SPL_BUILD
Ying Zhang3aa29de2013-08-16 15:16:15 +080028ifeq ($(CONFIG_TPL_BUILD),y)
Masahiro Yamadae02ee252015-02-24 22:26:20 +090029KBUILD_CPPFLAGS += -DCONFIG_TPL_BUILD
30endif
31
32ifeq ($(CONFIG_TPL_BUILD),y)
Ying Zhang3aa29de2013-08-16 15:16:15 +080033SPL_BIN := u-boot-tpl
34else
35SPL_BIN := u-boot-spl
36endif
37
Masahiro Yamada4379ac62014-03-11 11:05:19 +090038include $(srctree)/config.mk
Daniel Schwierzecke19db552014-11-21 23:51:33 +010039include $(srctree)/arch/$(ARCH)/Makefile
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +000040
Masahiro Yamada026f9cf2014-03-05 16:59:40 +090041# Enable garbage collection of un-used sections for SPL
42KBUILD_CFLAGS += -ffunction-sections -fdata-sections
43LDFLAGS_FINAL += --gc-sections
44
Masahiro Yamada5fe63012014-02-04 17:24:33 +090045# FIX ME
Masahiro Yamada026f9cf2014-03-05 16:59:40 +090046cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
47 $(NOSTDINC_FLAGS)
Masahiro Yamada5fe63012014-02-04 17:24:33 +090048
Masahiro Yamada01286322014-03-11 11:05:20 +090049HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +000050
Masahiro Yamadabf69d662014-04-25 21:54:31 +090051libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
Masahiro Yamada656de6b2014-02-04 17:24:37 +090052libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +000053
Masahiro Yamada656de6b2014-02-04 17:24:37 +090054libs-$(CONFIG_SPL_FRAMEWORK) += common/spl/
Simon Glassaf6bbd42015-10-19 06:49:56 -060055libs-y += common/init/
Masahiro Yamada656de6b2014-02-04 17:24:37 +090056libs-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/
57libs-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/
Masahiro Yamadad6c2ac52015-08-12 07:31:44 +090058libs-y += drivers/
Michal Simek8d7a2b82015-11-09 10:45:07 +010059libs-y += dts/
Masahiro Yamada656de6b2014-02-04 17:24:37 +090060libs-y += fs/
61libs-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/
Masahiro Yamada656de6b2014-02-04 17:24:37 +090062libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/
63libs-$(CONFIG_SPL_NET_SUPPORT) += net/
Daniel Schwierzeckefcc6092011-07-13 05:11:08 +000064
Masahiro Yamada656de6b2014-02-04 17:24:37 +090065head-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, $(libs-y))
Masahiro Yamadae2906a52013-11-11 14:36:00 +090070
Allen Martin660e98f2012-08-31 08:30:14 +000071# Add GCC lib
Masahiro Yamadacd2e46c2014-03-05 16:59:38 +090072ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
Masahiro Yamadaa86cf892014-02-27 22:40:34 +090073PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
Masahiro Yamada64452622014-02-24 20:44:14 +090074PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
Allen Martin660e98f2012-08-31 08:30:14 +000075endif
76
Masahiro Yamada656de6b2014-02-04 17:24:37 +090077u-boot-spl-init := $(head-y)
78u-boot-spl-main := $(libs-y)
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +000079
80# Linker Script
81ifdef CONFIG_SPL_LDSCRIPT
82# need to strip off double quotes
Masahiro Yamada01286322014-03-11 11:05:20 +090083LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%))
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +000084endif
85
86ifeq ($(wildcard $(LDSCRIPT)),)
Masahiro Yamada4379ac62014-03-11 11:05:19 +090087 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-spl.lds
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +000088endif
89ifeq ($(wildcard $(LDSCRIPT)),)
Masahiro Yamada4379ac62014-03-11 11:05:19 +090090 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-spl.lds
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +000091endif
92ifeq ($(wildcard $(LDSCRIPT)),)
Masahiro Yamada4379ac62014-03-11 11:05:19 +090093 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot-spl.lds
Simon Glassee601972011-11-21 10:49:37 +000094endif
95ifeq ($(wildcard $(LDSCRIPT)),)
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +000096$(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 += \
Masahiro Yamada4379ac62014-03-11 11:05:19 +0900103 -include $(srctree)/include/u-boot/u-boot.lds.h \
Masahiro Yamada5ee828c2014-03-11 11:05:21 +0900104 -include $(objtree)/include/config.h \
Simon Glass7e6403a2011-11-21 10:49:40 +0000105 -DCPUDIR=$(CPUDIR) \
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +0000106 $(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
Marek Vasutb97241b2014-03-14 05:00:14 +0100109quiet_cmd_mkimage = MKIMAGE $@
Masahiro Yamada9bf215b2014-02-24 11:12:15 +0900110cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
111 $(if $(KBUILD_VERBOSE:1=), >/dev/null)
Tom Rini79b9ebb2012-10-16 13:06:06 +0000112
Masahiro Yamada9bf215b2014-02-24 11:12:15 +0900113MKIMAGEFLAGS_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
118 $(call if_changed,mkimage)
John Rigby3decb142011-07-21 09:10:30 -0400119
Nathan Rossi08598d62015-11-17 22:56:57 +1000120ifeq ($(CONFIG_SYS_SOC),"at91")
Andreas Bießmann5c390a52014-05-19 14:23:40 +0200121MKIMAGEFLAGS_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
130 $(call if_changed,mkimage)
Nathan Rossi08598d62015-11-17 22:56:57 +1000131else
132MKIMAGEFLAGS_boot.bin = -T zynqimage
133
134spl/boot.bin: $(obj)/u-boot-spl-dtb.bin
135 $(call if_changed,mkimage)
136endif
Andreas Bießmann5c390a52014-05-19 14:23:40 +0200137
Simon Glass741e58e2015-02-05 22:06:10 -0700138ALL-y += $(obj)/$(SPL_BIN).bin $(obj)/$(SPL_BIN).cfg
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +0000139
Simon Glass021b4d12015-10-17 19:41:18 -0600140ifdef CONFIG_SPL_OF_CONTROL
Simon Glassfa78e0a2015-06-23 15:38:29 -0600141ALL-$(CONFIG_OF_SEPARATE) += $(obj)/$(SPL_BIN)-pad.bin $(obj)/$(SPL_BIN)-dtb.bin
Simon Glass021b4d12015-10-17 19:41:18 -0600142endif
Simon Glassfa78e0a2015-06-23 15:38:29 -0600143
Chander Kashyap98a48c52011-08-18 22:37:20 +0000144ifdef CONFIG_SAMSUNG
Masahiro Yamada9e414032014-02-04 17:24:24 +0900145ALL-y += $(obj)/$(BOARD)-spl.bin
Chander Kashyap98a48c52011-08-18 22:37:20 +0000146endif
147
Marek Vasut333b7202015-07-15 02:53:45 +0200148ifdef CONFIG_ARCH_SOCFPGA
149ALL-y += $(obj)/$(SPL_BIN)-dtb.sfp
150endif
151
Ian Campbell50827a52014-05-05 11:52:30 +0100152ifdef CONFIG_SUNXI
Ian Campbell50827a52014-05-05 11:52:30 +0100153ALL-y += $(obj)/sunxi-spl.bin
154endif
Ian Campbell50827a52014-05-05 11:52:30 +0100155
Heiko Schocherc0014862014-10-30 09:59:59 +0100156ifeq ($(CONFIG_SYS_SOC),"at91")
157ALL-y += boot.bin
158endif
159
Nathan Rossi08598d62015-11-17 22:56:57 +1000160ifdef CONFIG_ARCH_ZYNQ
161ALL-y += $(obj)/boot.bin
162endif
163
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +0000164all: $(ALL-y)
165
Simon Glassfa78e0a2015-06-23 15:38:29 -0600166quiet_cmd_cat = CAT $@
167cmd_cat = cat $(filter-out $(PHONY), $^) > $@
168
169$(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN).bin $(obj)/$(SPL_BIN)-pad.bin \
170 $(obj)/$(SPL_BIN).dtb FORCE
171 $(call if_changed,cat)
172
173# Create a file that pads from the end of u-boot-spl.bin to bss_end
174$(obj)/$(SPL_BIN)-pad.bin: $(obj)/$(SPL_BIN)
175 @bss_size_str=$(shell $(NM) $< | awk 'BEGIN {size = 0} /__bss_size/ {size = $$1} END {print "ibase=16; " toupper(size)}' | bc); \
176 dd if=/dev/zero of=$@ bs=1 count=$${bss_size_str} 2>/dev/null;
177
178# Pass the original device tree file through fdtgrep twice. The first pass
179# removes any unwanted nodes (i.e. those which don't have the
180# 'u-boot,dm-pre-reloc' property and thus are not needed by SPL. The second
181# pass removes various unused properties from the remaining nodes.
182# The output is typically a much smaller device tree file.
183quiet_cmd_fdtgrep = FDTGREP $@
184 cmd_fdtgrep = $(objtree)/tools/fdtgrep -b u-boot,dm-pre-reloc -RT $< \
185 -n /chosen -O dtb | \
186 $(objtree)/tools/fdtgrep -r -O dtb - -o $@ \
187 $(addprefix -P ,$(subst $\",,$(CONFIG_OF_SPL_REMOVE_PROPS)))
188
189$(obj)/$(SPL_BIN).dtb: dts/dt.dtb
190 $(call cmd,fdtgrep)
191
Simon Glass741e58e2015-02-05 22:06:10 -0700192quiet_cmd_cpp_cfg = CFG $@
193cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
Masahiro Yamada31134712015-05-26 12:51:25 +0900194 -DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
Simon Glass741e58e2015-02-05 22:06:10 -0700195
196$(obj)/$(SPL_BIN).cfg: include/config.h
197 $(call if_changed,cpp_cfg)
198
Chander Kashyap98a48c52011-08-18 22:37:20 +0000199ifdef CONFIG_SAMSUNG
Rajeshwari Birje0fcac1a2013-12-26 09:44:27 +0530200ifdef CONFIG_VAR_SIZE_SPL
201VAR_SIZE_PARAM = --vs
202else
203VAR_SIZE_PARAM =
204endif
Masahiro Yamada9e414032014-02-04 17:24:24 +0900205$(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin
Masahiro Yamada5ee828c2014-03-11 11:05:21 +0900206 $(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\
207 $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\
208 $(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@
Chander Kashyap98a48c52011-08-18 22:37:20 +0000209endif
210
Masahiro Yamadaf9c235f2014-02-24 11:12:14 +0900211quiet_cmd_objcopy = OBJCOPY $@
212cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
213
214OBJCOPYFLAGS_$(SPL_BIN).bin = $(SPL_OBJCFLAGS) -O binary
215
216$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN) FORCE
217 $(call if_changed,objcopy)
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +0000218
Masahiro Yamada9e414032014-02-04 17:24:24 +0900219LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
Masahiro Yamadae0d5d9f2014-02-04 17:24:22 +0900220ifneq ($(CONFIG_SPL_TEXT_BASE),)
221LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE)
222endif
223
Marek Vasut333b7202015-07-15 02:53:45 +0200224ifdef CONFIG_ARCH_SOCFPGA
225MKIMAGEFLAGS_$(SPL_BIN)-dtb.sfp = -T socfpgaimage
226$(obj)/$(SPL_BIN)-dtb.sfp: $(obj)/$(SPL_BIN)-dtb.bin FORCE
227 $(call if_changed,mkimage)
228endif
229
Ian Campbell50827a52014-05-05 11:52:30 +0100230ifdef CONFIG_SUNXI
231quiet_cmd_mksunxiboot = MKSUNXI $@
232cmd_mksunxiboot = $(objtree)/tools/mksunxiboot $< $@
233$(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin
234 $(call if_changed,mksunxiboot)
235endif
236
Masahiro Yamada656de6b2014-02-04 17:24:37 +0900237quiet_cmd_u-boot-spl = LD $@
Masahiro Yamada9adb6d22014-10-24 01:30:44 +0900238 cmd_u-boot-spl = (cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \
Masahiro Yamada656de6b2014-02-04 17:24:37 +0900239 $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \
240 $(patsubst $(obj)/%,%,$(u-boot-spl-main)) --end-group \
Masahiro Yamada9adb6d22014-10-24 01:30:44 +0900241 $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN))
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +0000242
Masahiro Yamada9adb6d22014-10-24 01:30:44 +0900243$(obj)/$(SPL_BIN): $(u-boot-spl-init) $(u-boot-spl-main) $(obj)/u-boot-spl.lds FORCE
244 $(call if_changed,u-boot-spl)
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +0000245
Masahiro Yamada656de6b2014-02-04 17:24:37 +0900246$(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ;
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +0000247
Masahiro Yamada656de6b2014-02-04 17:24:37 +0900248PHONY += $(u-boot-spl-dirs)
249$(u-boot-spl-dirs):
250 $(Q)$(MAKE) $(build)=$@
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +0000251
Masahiro Yamada04a34c92014-02-24 11:12:19 +0900252quiet_cmd_cpp_lds = LDS $@
Masahiro Yamada395e60c2014-04-09 20:10:43 +0900253cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
254 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
Masahiro Yamada04a34c92014-02-24 11:12:19 +0900255
Masahiro Yamada6825a952014-02-04 17:24:28 +0900256$(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE
Masahiro Yamada395e60c2014-04-09 20:10:43 +0900257 $(call if_changed_dep,cpp_lds)
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +0000258
Masahiro Yamadaf9c235f2014-02-24 11:12:14 +0900259# read all saved command lines
260
261targets := $(wildcard $(sort $(targets)))
262cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
263
264ifneq ($(cmd_files),)
265 $(cmd_files): ; # Do not try to update included dependency files
266 include $(cmd_files)
267endif
268
Masahiro Yamada6825a952014-02-04 17:24:28 +0900269PHONY += FORCE
270FORCE:
271
272# Declare the contents of the .PHONY variable as phony. We keep that
273# information in a variable so we can use it in if_changed and friends.
274.PHONY: $(PHONY)