542a2b08f6ca265881e2a1953d14f77a08e2c8d2
[karo-tx-uboot.git] / spl / Makefile
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 $(srctree)/scripts/Kbuild.include
23
24 CONFIG_SPL_BUILD := y
25 export CONFIG_SPL_BUILD
26
27 KBUILD_CPPFLAGS += -DCONFIG_SPL_BUILD
28 ifeq ($(CONFIG_TPL_BUILD),y)
29 KBUILD_CPPFLAGS += -DCONFIG_TPL_BUILD
30 endif
31
32 # Enable garbage collection of un-used sections for SPL
33 KBUILD_CFLAGS += -ffunction-sections -fdata-sections
34 LDFLAGS_FINAL += --gc-sections
35
36 ifeq ($(CONFIG_TPL_BUILD),y)
37 export CONFIG_TPL_BUILD
38 SPL_BIN := u-boot-tpl
39 else
40 SPL_BIN := u-boot-spl
41 endif
42
43 include include/config.mk
44
45 ifeq ($(CONFIG_TPL_BUILD),y)
46   -include include/tpl-autoconf.mk
47 else
48   -include include/spl-autoconf.mk
49 endif
50
51 include $(TOPDIR)/config.mk
52
53 # FIX ME
54 c_flags := $(KBUILD_CFLAGS) $(KBUILD_CPPFLAGS) $(CPPFLAGS) $(UBOOTINCLUDE) $(NOSTDINC_FLAGS)
55
56 # Auto-generate the spl-autoconf.mk file (which is included by all makefiles for SPL)
57 quiet_cmd_autoconf = GEN     $@
58       cmd_autoconf = \
59         $(CPP) $(c_flags) -DDO_DEPS_ONLY -dM $(srctree)/include/common.h > $@.tmp && \
60                 sed -n -f $(srctree)/tools/scripts/define2mk.sed $@.tmp > $@; \
61         rm $@.tmp
62
63 include/tpl-autoconf.mk: include/config.h
64         $(call cmd,autoconf)
65
66 include/spl-autoconf.mk: include/config.h
67         $(call cmd,autoconf)
68
69 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(SRCTREE)/board/$(VENDOR)/common/Makefile),y,n)
70
71 ifdef   CONFIG_SPL_START_S_PATH
72 START_PATH := $(CONFIG_SPL_START_S_PATH:"%"=%)
73 else
74 START_PATH := $(CPUDIR)
75 endif
76
77 head-y := $(START_PATH)/start.o
78 head-$(CONFIG_X86) += $(START_PATH)/start16.o $(START_PATH)/resetvec.o
79 head-$(CONFIG_4xx) += $(START_PATH)/resetvec.o
80 head-$(CONFIG_MPC85xx) += $(START_PATH)/resetvec.o
81
82 libs-y += arch/$(ARCH)/lib/
83
84 libs-y += $(CPUDIR)/
85
86 ifdef SOC
87 libs-y += $(CPUDIR)/$(SOC)/
88 endif
89 libs-y += board/$(BOARDDIR)/
90 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
91
92 libs-$(CONFIG_SPL_FRAMEWORK) += common/spl/
93 libs-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/
94 libs-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/
95 libs-$(CONFIG_SPL_I2C_SUPPORT) += drivers/i2c/
96 libs-$(CONFIG_SPL_GPIO_SUPPORT) += drivers/gpio/
97 libs-$(CONFIG_SPL_MMC_SUPPORT) += drivers/mmc/
98 libs-$(CONFIG_SPL_MPC8XXX_INIT_DDR_SUPPORT) += drivers/ddr/fsl/
99 libs-$(CONFIG_SPL_SERIAL_SUPPORT) += drivers/serial/
100 libs-$(CONFIG_SPL_SPI_FLASH_SUPPORT) += drivers/mtd/spi/
101 libs-$(CONFIG_SPL_SPI_SUPPORT) += drivers/spi/
102 libs-y += fs/
103 libs-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/
104 libs-$(CONFIG_SPL_POWER_SUPPORT) += drivers/power/ drivers/power/pmic/
105 libs-$(if $(CONFIG_CMD_NAND),$(CONFIG_SPL_NAND_SUPPORT)) += drivers/mtd/nand/
106 libs-$(CONFIG_SPL_DRIVERS_MISC_SUPPORT) += drivers/misc/
107 libs-$(CONFIG_SPL_ONENAND_SUPPORT) += drivers/mtd/onenand/
108 libs-$(CONFIG_SPL_DMA_SUPPORT) += drivers/dma/
109 libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/
110 libs-$(CONFIG_SPL_NET_SUPPORT) += net/
111 libs-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/
112 libs-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/phy/
113 libs-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/net/phy/
114 libs-$(CONFIG_SPL_MUSB_NEW_SUPPORT) += drivers/usb/musb-new/
115 libs-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/usb/gadget/
116 libs-$(CONFIG_SPL_WATCHDOG_SUPPORT) += drivers/watchdog/
117 libs-$(CONFIG_SPL_USB_HOST_SUPPORT) += drivers/usb/host/
118 libs-$(CONFIG_OMAP_USB_PHY) += drivers/usb/phy/
119 libs-$(CONFIG_SPL_SATA_SUPPORT) += drivers/block/
120
121 ifneq (,$(CONFIG_MX23)$(CONFIG_MX35)$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35))
122 libs-y += arch/$(ARCH)/imx-common/
123 endif
124
125 libs-$(CONFIG_ARM) += arch/arm/cpu/
126 libs-$(CONFIG_PPC) += arch/powerpc/cpu/
127
128 head-y          := $(addprefix $(obj)/,$(head-y))
129 libs-y          := $(addprefix $(obj)/,$(libs-y))
130 u-boot-spl-dirs := $(patsubst %/,%,$(filter %/, $(libs-y)))
131
132 libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
133
134 # Add GCC lib
135 ifeq ("$(USE_PRIVATE_LIBGCC)", "yes")
136 PLATFORM_LIBGCC = $(SPLTREE)/arch/$(ARCH)/lib/lib.a
137 PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
138 endif
139
140 u-boot-spl-init := $(head-y)
141 u-boot-spl-main := $(libs-y)
142
143 # Linker Script
144 ifdef CONFIG_SPL_LDSCRIPT
145 # need to strip off double quotes
146 LDSCRIPT := $(addprefix $(SRCTREE)/,$(CONFIG_SPL_LDSCRIPT:"%"=%))
147 endif
148
149 ifeq ($(wildcard $(LDSCRIPT)),)
150         LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-spl.lds
151 endif
152 ifeq ($(wildcard $(LDSCRIPT)),)
153         LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot-spl.lds
154 endif
155 ifeq ($(wildcard $(LDSCRIPT)),)
156         LDSCRIPT := $(TOPDIR)/arch/$(ARCH)/cpu/u-boot-spl.lds
157 endif
158 ifeq ($(wildcard $(LDSCRIPT)),)
159 $(error could not find linker script)
160 endif
161
162 # Special flags for CPP when processing the linker script.
163 # Pass the version down so we can handle backwards compatibility
164 # on the fly.
165 LDPPFLAGS += \
166         -include $(TOPDIR)/include/u-boot/u-boot.lds.h \
167         -include $(OBJTREE)/include/config.h \
168         -DCPUDIR=$(CPUDIR) \
169         $(shell $(LD) --version | \
170           sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
171
172 quiet_cmd_mkimage = UIMAGE  $@
173 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
174         $(if $(KBUILD_VERBOSE:1=), >/dev/null)
175
176 MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE)
177
178 MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE)
179
180 MLO MLO.byteswap: $(obj)/u-boot-spl.bin
181         $(call if_changed,mkimage)
182
183 $(objtree)/SPL: $(obj)/u-boot-spl.bin
184         $(Q)$(MAKE) $(build)=spl/arch/arm/imx-common $@
185
186 ALL-y   += $(obj)/$(SPL_BIN).bin
187
188 ifdef CONFIG_SAMSUNG
189 ALL-y   += $(obj)/$(BOARD)-spl.bin
190 endif
191
192 all:    $(ALL-y)
193
194 ifdef CONFIG_SAMSUNG
195 ifdef CONFIG_VAR_SIZE_SPL
196 VAR_SIZE_PARAM = --vs
197 else
198 VAR_SIZE_PARAM =
199 endif
200 $(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin
201         $(if $(wildcard $(OBJTREE)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\
202         $(OBJTREE)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\
203         $(OBJTREE)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@
204 endif
205
206 quiet_cmd_objcopy = OBJCOPY $@
207 cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
208
209 OBJCOPYFLAGS_$(SPL_BIN).bin = $(SPL_OBJCFLAGS) -O binary
210
211 $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN) FORCE
212         $(call if_changed,objcopy)
213
214 LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
215 ifneq ($(CONFIG_SPL_TEXT_BASE),)
216 LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE)
217 endif
218
219 quiet_cmd_u-boot-spl = LD      $@
220       cmd_u-boot-spl = cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \
221                        $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \
222                        $(patsubst $(obj)/%,%,$(u-boot-spl-main)) --end-group \
223                        $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN)
224
225 $(obj)/$(SPL_BIN): $(u-boot-spl-init) $(u-boot-spl-main) $(obj)/u-boot-spl.lds
226         $(call cmd,u-boot-spl)
227
228 $(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ;
229
230 PHONY += $(u-boot-spl-dirs)
231 $(u-boot-spl-dirs):
232         $(Q)$(MAKE) $(build)=$@
233
234 # FIX ME
235 cpp_flags := $(KBUILD_CPPFLAGS) $(CPPFLAGS) $(UBOOTINCLUDE) $(NOSTDINC_FLAGS)
236
237 $(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE
238         $(CPP) $(cpp_flags) $(LDPPFLAGS) -I$(obj). -ansi -D__ASSEMBLY__ -P - < $< > $@
239
240 # read all saved command lines
241
242 targets := $(wildcard $(sort $(targets)))
243 cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
244
245 ifneq ($(cmd_files),)
246   $(cmd_files): ;       # Do not try to update included dependency files
247   include $(cmd_files)
248 endif
249
250 PHONY += FORCE
251 FORCE:
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)