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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 $(srctree)/scripts/Kbuild.include
23
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +000024CONFIG_SPL_BUILD := y
25export CONFIG_SPL_BUILD
26
Masahiro Yamadae0d5d9f2014-02-04 17:24:22 +090027KBUILD_CPPFLAGS += -DCONFIG_SPL_BUILD
28ifeq ($(CONFIG_TPL_BUILD),y)
29KBUILD_CPPFLAGS += -DCONFIG_TPL_BUILD
30endif
31
Ying Zhang3aa29de2013-08-16 15:16:15 +080032ifeq ($(CONFIG_TPL_BUILD),y)
33export CONFIG_TPL_BUILD
34SPL_BIN := u-boot-tpl
35else
36SPL_BIN := u-boot-spl
37endif
38
Masahiro Yamada01072b42014-02-04 17:24:32 +090039include include/config.mk
40
41ifeq ($(CONFIG_TPL_BUILD),y)
42 -include include/tpl-autoconf.mk
43else
44 -include include/spl-autoconf.mk
45endif
46
Masahiro Yamada4379ac62014-03-11 11:05:19 +090047include $(srctree)/config.mk
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +000048
Masahiro Yamada026f9cf2014-03-05 16:59:40 +090049# Enable garbage collection of un-used sections for SPL
50KBUILD_CFLAGS += -ffunction-sections -fdata-sections
51LDFLAGS_FINAL += --gc-sections
52
Masahiro Yamada5fe63012014-02-04 17:24:33 +090053# FIX ME
Masahiro Yamada026f9cf2014-03-05 16:59:40 +090054cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
55 $(NOSTDINC_FLAGS)
56c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
Masahiro Yamada5fe63012014-02-04 17:24:33 +090057
58# Auto-generate the spl-autoconf.mk file (which is included by all makefiles for SPL)
59quiet_cmd_autoconf = GEN $@
60 cmd_autoconf = \
61 $(CPP) $(c_flags) -DDO_DEPS_ONLY -dM $(srctree)/include/common.h > $@.tmp && \
62 sed -n -f $(srctree)/tools/scripts/define2mk.sed $@.tmp > $@; \
63 rm $@.tmp
64
65include/tpl-autoconf.mk: include/config.h
66 $(call cmd,autoconf)
67
68include/spl-autoconf.mk: include/config.h
69 $(call cmd,autoconf)
70
Masahiro Yamada01286322014-03-11 11:05:20 +090071HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +000072
Marek Vasut08e4f702011-09-11 17:56:19 +000073ifdef CONFIG_SPL_START_S_PATH
Masahiro Yamadaa8c07542013-12-05 15:08:31 +090074START_PATH := $(CONFIG_SPL_START_S_PATH:"%"=%)
Marek Vasut08e4f702011-09-11 17:56:19 +000075else
76START_PATH := $(CPUDIR)
77endif
78
Masahiro Yamadae8a8b822013-11-28 12:09:59 +090079head-y := $(START_PATH)/start.o
80head-$(CONFIG_X86) += $(START_PATH)/start16.o $(START_PATH)/resetvec.o
81head-$(CONFIG_4xx) += $(START_PATH)/resetvec.o
82head-$(CONFIG_MPC85xx) += $(START_PATH)/resetvec.o
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +000083
Masahiro Yamada656de6b2014-02-04 17:24:37 +090084libs-y += arch/$(ARCH)/lib/
Scott Wood510ed3b2012-09-19 17:56:39 -050085
Masahiro Yamada656de6b2014-02-04 17:24:37 +090086libs-y += $(CPUDIR)/
Scott Wood510ed3b2012-09-19 17:56:39 -050087
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +000088ifdef SOC
Masahiro Yamada656de6b2014-02-04 17:24:37 +090089libs-y += $(CPUDIR)/$(SOC)/
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +000090endif
Masahiro Yamada656de6b2014-02-04 17:24:37 +090091libs-y += board/$(BOARDDIR)/
92libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +000093
Masahiro Yamada656de6b2014-02-04 17:24:37 +090094libs-$(CONFIG_SPL_FRAMEWORK) += common/spl/
95libs-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/
96libs-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/
97libs-$(CONFIG_SPL_I2C_SUPPORT) += drivers/i2c/
98libs-$(CONFIG_SPL_GPIO_SUPPORT) += drivers/gpio/
99libs-$(CONFIG_SPL_MMC_SUPPORT) += drivers/mmc/
100libs-$(CONFIG_SPL_MPC8XXX_INIT_DDR_SUPPORT) += drivers/ddr/fsl/
101libs-$(CONFIG_SPL_SERIAL_SUPPORT) += drivers/serial/
102libs-$(CONFIG_SPL_SPI_FLASH_SUPPORT) += drivers/mtd/spi/
103libs-$(CONFIG_SPL_SPI_SUPPORT) += drivers/spi/
104libs-y += fs/
105libs-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/
106libs-$(CONFIG_SPL_POWER_SUPPORT) += drivers/power/ drivers/power/pmic/
107libs-$(if $(CONFIG_CMD_NAND),$(CONFIG_SPL_NAND_SUPPORT)) += drivers/mtd/nand/
108libs-$(CONFIG_SPL_DRIVERS_MISC_SUPPORT) += drivers/misc/
109libs-$(CONFIG_SPL_ONENAND_SUPPORT) += drivers/mtd/onenand/
110libs-$(CONFIG_SPL_DMA_SUPPORT) += drivers/dma/
111libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/
112libs-$(CONFIG_SPL_NET_SUPPORT) += net/
113libs-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/
114libs-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/phy/
115libs-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/net/phy/
116libs-$(CONFIG_SPL_MUSB_NEW_SUPPORT) += drivers/usb/musb-new/
117libs-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/usb/gadget/
118libs-$(CONFIG_SPL_WATCHDOG_SUPPORT) += drivers/watchdog/
119libs-$(CONFIG_SPL_USB_HOST_SUPPORT) += drivers/usb/host/
120libs-$(CONFIG_OMAP_USB_PHY) += drivers/usb/phy/
121libs-$(CONFIG_SPL_SATA_SUPPORT) += drivers/block/
Daniel Schwierzeckefcc6092011-07-13 05:11:08 +0000122
Masahiro Yamadaba931252013-12-11 10:00:08 +0900123ifneq (,$(CONFIG_MX23)$(CONFIG_MX35)$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35))
Masahiro Yamada656de6b2014-02-04 17:24:37 +0900124libs-y += arch/$(ARCH)/imx-common/
Marek Vasutcfb8e872013-04-21 05:52:25 +0000125endif
126
Masahiro Yamada656de6b2014-02-04 17:24:37 +0900127libs-$(CONFIG_ARM) += arch/arm/cpu/
128libs-$(CONFIG_PPC) += arch/powerpc/cpu/
Allen Martind9e73a82012-08-31 08:30:01 +0000129
Masahiro Yamada656de6b2014-02-04 17:24:37 +0900130head-y := $(addprefix $(obj)/,$(head-y))
131libs-y := $(addprefix $(obj)/,$(libs-y))
132u-boot-spl-dirs := $(patsubst %/,%,$(filter %/, $(libs-y)))
133
134libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
Masahiro Yamadae2906a52013-11-11 14:36:00 +0900135
Allen Martin660e98f2012-08-31 08:30:14 +0000136# Add GCC lib
Masahiro Yamadacd2e46c2014-03-05 16:59:38 +0900137ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
Masahiro Yamadaa86cf892014-02-27 22:40:34 +0900138PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
Masahiro Yamada64452622014-02-24 20:44:14 +0900139PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
Allen Martin660e98f2012-08-31 08:30:14 +0000140endif
141
Masahiro Yamada656de6b2014-02-04 17:24:37 +0900142u-boot-spl-init := $(head-y)
143u-boot-spl-main := $(libs-y)
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +0000144
145# Linker Script
146ifdef CONFIG_SPL_LDSCRIPT
147# need to strip off double quotes
Masahiro Yamada01286322014-03-11 11:05:20 +0900148LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%))
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +0000149endif
150
151ifeq ($(wildcard $(LDSCRIPT)),)
Masahiro Yamada4379ac62014-03-11 11:05:19 +0900152 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-spl.lds
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +0000153endif
154ifeq ($(wildcard $(LDSCRIPT)),)
Masahiro Yamada4379ac62014-03-11 11:05:19 +0900155 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-spl.lds
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +0000156endif
157ifeq ($(wildcard $(LDSCRIPT)),)
Masahiro Yamada4379ac62014-03-11 11:05:19 +0900158 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot-spl.lds
Simon Glassee601972011-11-21 10:49:37 +0000159endif
160ifeq ($(wildcard $(LDSCRIPT)),)
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +0000161$(error could not find linker script)
162endif
163
164# Special flags for CPP when processing the linker script.
165# Pass the version down so we can handle backwards compatibility
166# on the fly.
167LDPPFLAGS += \
Masahiro Yamada4379ac62014-03-11 11:05:19 +0900168 -include $(srctree)/include/u-boot/u-boot.lds.h \
Masahiro Yamada5ee828c2014-03-11 11:05:21 +0900169 -include $(objtree)/include/config.h \
Simon Glass7e6403a2011-11-21 10:49:40 +0000170 -DCPUDIR=$(CPUDIR) \
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +0000171 $(shell $(LD) --version | \
172 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
173
Marek Vasutb97241b2014-03-14 05:00:14 +0100174quiet_cmd_mkimage = MKIMAGE $@
Masahiro Yamada9bf215b2014-02-24 11:12:15 +0900175cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
176 $(if $(KBUILD_VERBOSE:1=), >/dev/null)
Tom Rini79b9ebb2012-10-16 13:06:06 +0000177
Masahiro Yamada9bf215b2014-02-24 11:12:15 +0900178MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE)
179
180MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE)
181
182MLO MLO.byteswap: $(obj)/u-boot-spl.bin
183 $(call if_changed,mkimage)
John Rigby3decb142011-07-21 09:10:30 -0400184
Masahiro Yamada9e414032014-02-04 17:24:24 +0900185ALL-y += $(obj)/$(SPL_BIN).bin
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +0000186
Chander Kashyap98a48c52011-08-18 22:37:20 +0000187ifdef CONFIG_SAMSUNG
Masahiro Yamada9e414032014-02-04 17:24:24 +0900188ALL-y += $(obj)/$(BOARD)-spl.bin
Chander Kashyap98a48c52011-08-18 22:37:20 +0000189endif
190
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +0000191all: $(ALL-y)
192
Chander Kashyap98a48c52011-08-18 22:37:20 +0000193ifdef CONFIG_SAMSUNG
Rajeshwari Birje0fcac1a2013-12-26 09:44:27 +0530194ifdef CONFIG_VAR_SIZE_SPL
195VAR_SIZE_PARAM = --vs
196else
197VAR_SIZE_PARAM =
198endif
Masahiro Yamada9e414032014-02-04 17:24:24 +0900199$(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin
Masahiro Yamada5ee828c2014-03-11 11:05:21 +0900200 $(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\
201 $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\
202 $(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@
Chander Kashyap98a48c52011-08-18 22:37:20 +0000203endif
204
Masahiro Yamadaf9c235f2014-02-24 11:12:14 +0900205quiet_cmd_objcopy = OBJCOPY $@
206cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
207
208OBJCOPYFLAGS_$(SPL_BIN).bin = $(SPL_OBJCFLAGS) -O binary
209
210$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN) FORCE
211 $(call if_changed,objcopy)
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +0000212
Masahiro Yamada9e414032014-02-04 17:24:24 +0900213LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
Masahiro Yamadae0d5d9f2014-02-04 17:24:22 +0900214ifneq ($(CONFIG_SPL_TEXT_BASE),)
215LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE)
216endif
217
Masahiro Yamada656de6b2014-02-04 17:24:37 +0900218quiet_cmd_u-boot-spl = LD $@
219 cmd_u-boot-spl = cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \
220 $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \
221 $(patsubst $(obj)/%,%,$(u-boot-spl-main)) --end-group \
222 $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN)
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +0000223
Masahiro Yamada656de6b2014-02-04 17:24:37 +0900224$(obj)/$(SPL_BIN): $(u-boot-spl-init) $(u-boot-spl-main) $(obj)/u-boot-spl.lds
225 $(call cmd,u-boot-spl)
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +0000226
Masahiro Yamada656de6b2014-02-04 17:24:37 +0900227$(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ;
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +0000228
Masahiro Yamada656de6b2014-02-04 17:24:37 +0900229PHONY += $(u-boot-spl-dirs)
230$(u-boot-spl-dirs):
231 $(Q)$(MAKE) $(build)=$@
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +0000232
Masahiro Yamada04a34c92014-02-24 11:12:19 +0900233quiet_cmd_cpp_lds = LDS $@
Masahiro Yamada395e60c2014-04-09 20:10:43 +0900234cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
235 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
Masahiro Yamada04a34c92014-02-24 11:12:19 +0900236
Masahiro Yamada6825a952014-02-04 17:24:28 +0900237$(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE
Masahiro Yamada395e60c2014-04-09 20:10:43 +0900238 $(call if_changed_dep,cpp_lds)
Daniel Schwierzeck6a11cf42011-07-18 07:48:07 +0000239
Masahiro Yamadaf9c235f2014-02-24 11:12:14 +0900240# read all saved command lines
241
242targets := $(wildcard $(sort $(targets)))
243cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
244
245ifneq ($(cmd_files),)
246 $(cmd_files): ; # Do not try to update included dependency files
247 include $(cmd_files)
248endif
249
Masahiro Yamada6825a952014-02-04 17:24:28 +0900250PHONY += FORCE
251FORCE:
252
253# Declare the contents of the .PHONY variable as phony. We keep that
254# information in a variable so we can use it in if_changed and friends.
255.PHONY: $(PHONY)