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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-$(CONFIG_SPL_POWER_SUPPORT) += drivers/power/ \ | |
105 | drivers/power/pmic/ | |
106 | LIBS-$(if $(CONFIG_CMD_NAND),$(CONFIG_SPL_NAND_SUPPORT)) += drivers/mtd/nand/ | |
107 | LIBS-$(CONFIG_SPL_DRIVERS_MISC_SUPPORT) += drivers/misc/ | |
108 | LIBS-$(CONFIG_SPL_ONENAND_SUPPORT) += drivers/mtd/onenand/ | |
109 | LIBS-$(CONFIG_SPL_DMA_SUPPORT) += drivers/dma/ | |
110 | LIBS-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/ | |
111 | LIBS-$(CONFIG_SPL_NET_SUPPORT) += net/ | |
112 | LIBS-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/ | |
113 | LIBS-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/phy/ | |
114 | LIBS-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/net/phy/ | |
115 | LIBS-$(CONFIG_SPL_MUSB_NEW_SUPPORT) += drivers/usb/musb-new/ | |
116 | LIBS-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/usb/gadget/ | |
117 | LIBS-$(CONFIG_SPL_WATCHDOG_SUPPORT) += drivers/watchdog/ | |
118 | LIBS-$(CONFIG_SPL_USB_HOST_SUPPORT) += drivers/usb/host/ | |
119 | LIBS-$(CONFIG_OMAP_USB_PHY) += drivers/usb/phy/ | |
120 | LIBS-$(CONFIG_SPL_SATA_SUPPORT) += drivers/block/ | |
121 | ||
122 | ifneq (,$(CONFIG_MX23)$(CONFIG_MX35)$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35)) | |
123 | LIBS-y += arch/$(ARCH)/imx-common/ | |
124 | endif | |
125 | ||
126 | LIBS-$(CONFIG_ARM) += arch/arm/cpu/ | |
127 | LIBS-$(CONFIG_PPC) += arch/powerpc/cpu/ | |
128 | ||
129 | LIBS-y := $(patsubst %/, %/built-in.o, $(LIBS-y)) | |
130 | ||
131 | # Add GCC lib | |
132 | ifeq ("$(USE_PRIVATE_LIBGCC)", "yes") | |
133 | PLATFORM_LIBS := $(SPLTREE)/arch/$(ARCH)/lib/lib.a | |
134 | endif | |
135 | ||
136 | LIBS-y := $(sort $(LIBS-y)) | |
137 | ||
138 | __START := $(head-y) | |
139 | __LIBS := $(LIBS-y) | |
140 | ||
141 | START := $(addprefix $(obj)/,$(head-y)) | |
142 | LIBS := $(addprefix $(obj)/,$(LIBS-y)) | |
143 | ||
144 | # Linker Script | |
145 | ifdef CONFIG_SPL_LDSCRIPT | |
146 | # need to strip off double quotes | |
147 | LDSCRIPT := $(addprefix $(SRCTREE)/,$(CONFIG_SPL_LDSCRIPT:"%"=%)) | |
148 | endif | |
149 | ||
150 | ifeq ($(wildcard $(LDSCRIPT)),) | |
151 | LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-spl.lds | |
152 | endif | |
153 | ifeq ($(wildcard $(LDSCRIPT)),) | |
154 | LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot-spl.lds | |
155 | endif | |
156 | ifeq ($(wildcard $(LDSCRIPT)),) | |
157 | LDSCRIPT := $(TOPDIR)/arch/$(ARCH)/cpu/u-boot-spl.lds | |
158 | endif | |
159 | ifeq ($(wildcard $(LDSCRIPT)),) | |
160 | $(error could not find linker script) | |
161 | endif | |
162 | ||
163 | # Special flags for CPP when processing the linker script. | |
164 | # Pass the version down so we can handle backwards compatibility | |
165 | # on the fly. | |
166 | LDPPFLAGS += \ | |
167 | -include $(TOPDIR)/include/u-boot/u-boot.lds.h \ | |
168 | -include $(OBJTREE)/include/config.h \ | |
169 | -DCPUDIR=$(CPUDIR) \ | |
170 | $(shell $(LD) --version | \ | |
171 | sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') | |
172 | ||
173 | $(OBJTREE)/MLO: $(obj)/u-boot-spl.bin | |
174 | $(OBJTREE)/tools/mkimage -T omapimage \ | |
175 | -a $(CONFIG_SPL_TEXT_BASE) -d $< $@ | |
176 | ||
177 | $(OBJTREE)/MLO.byteswap: $(obj)/u-boot-spl.bin | |
178 | $(OBJTREE)/tools/mkimage -T omapimage -n byteswap \ | |
179 | -a $(CONFIG_SPL_TEXT_BASE) -d $< $@ | |
180 | ||
181 | $(objtree)/SPL : $(obj)/u-boot-spl.bin | |
182 | $(MAKE) $(build)=spl/arch/arm/imx-common $@ | |
183 | ||
184 | ALL-y += $(obj)/$(SPL_BIN).bin | |
185 | ||
186 | ifdef CONFIG_SAMSUNG | |
187 | ALL-y += $(obj)/$(BOARD)-spl.bin | |
188 | endif | |
189 | ||
190 | all: $(ALL-y) | |
191 | ||
192 | ifdef CONFIG_SAMSUNG | |
193 | ifdef CONFIG_VAR_SIZE_SPL | |
194 | VAR_SIZE_PARAM = --vs | |
195 | else | |
196 | VAR_SIZE_PARAM = | |
197 | endif | |
198 | $(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin | |
199 | $(if $(wildcard $(OBJTREE)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\ | |
200 | $(OBJTREE)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\ | |
201 | $(OBJTREE)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@ | |
202 | endif | |
203 | ||
204 | $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN) | |
205 | $(OBJCOPY) $(OBJCFLAGS) $(SPL_OBJCFLAGS) -O binary $< $@ | |
206 | ||
207 | LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL) | |
208 | ifneq ($(CONFIG_SPL_TEXT_BASE),) | |
209 | LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE) | |
210 | endif | |
211 | ||
212 | GEN_UBOOT = \ | |
213 | cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) $(__START) \ | |
214 | --start-group $(__LIBS) --end-group $(PLATFORM_LIBS) \ | |
215 | -Map $(SPL_BIN).map -o $(SPL_BIN) | |
216 | ||
217 | $(obj)/$(SPL_BIN): $(START) $(LIBS) $(obj)/u-boot-spl.lds | |
218 | $(GEN_UBOOT) | |
219 | ||
220 | $(START): | |
221 | @: | |
222 | ||
223 | $(LIBS): | |
224 | $(Q)$(MAKE) $(build)=$(patsubst %/,%,$(dir $@)) | |
225 | ||
226 | # FIX ME | |
227 | cpp_flags := $(KBUILD_CPPFLAGS) $(CPPFLAGS) $(UBOOTINCLUDE) $(NOSTDINC_FLAGS) | |
228 | ||
229 | $(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE | |
230 | $(CPP) $(cpp_flags) $(LDPPFLAGS) -I$(obj). -ansi -D__ASSEMBLY__ -P - < $< > $@ | |
231 | ||
232 | PHONY += FORCE | |
233 | FORCE: | |
234 | ||
235 | # Declare the contents of the .PHONY variable as phony. We keep that | |
236 | # information in a variable so we can use it in if_changed and friends. | |
237 | .PHONY: $(PHONY) |