1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
|
#
# (C) Copyright 2000-2011
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# (C) Copyright 2011
# Daniel Schwierzeck, daniel.schwierzeck@googlemail.com.
#
# (C) Copyright 2011
# Texas Instruments Incorporated - http://www.ti.com/
# Aneesh V <aneesh@ti.com>
#
# SPDX-License-Identifier: GPL-2.0+
#
# Based on top-level Makefile.
#
src := $(obj)
# Create output directory if not already present
_dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj))
include $(srctree)/scripts/Kbuild.include
CONFIG_SPL_BUILD := y
export CONFIG_SPL_BUILD
KBUILD_CPPFLAGS += -DCONFIG_SPL_BUILD
ifeq ($(CONFIG_TPL_BUILD),y)
KBUILD_CPPFLAGS += -DCONFIG_TPL_BUILD
endif
# Enable garbage collection of un-used sections for SPL
KBUILD_CFLAGS += -ffunction-sections -fdata-sections
LDFLAGS_FINAL += --gc-sections
ifeq ($(CONFIG_TPL_BUILD),y)
export CONFIG_TPL_BUILD
SPL_BIN := u-boot-tpl
else
SPL_BIN := u-boot-spl
endif
include $(TOPDIR)/config.mk
HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(SRCTREE)/board/$(VENDOR)/common/Makefile),y,n)
ifdef CONFIG_SPL_START_S_PATH
START_PATH := $(CONFIG_SPL_START_S_PATH:"%"=%)
else
START_PATH := $(CPUDIR)
endif
head-y := $(START_PATH)/start.o
head-$(CONFIG_X86) += $(START_PATH)/start16.o $(START_PATH)/resetvec.o
head-$(CONFIG_4xx) += $(START_PATH)/resetvec.o
head-$(CONFIG_MPC85xx) += $(START_PATH)/resetvec.o
LIBS-y += arch/$(ARCH)/lib/
LIBS-y += $(CPUDIR)/
ifdef SOC
LIBS-y += $(CPUDIR)/$(SOC)/
endif
LIBS-y += board/$(BOARDDIR)/
LIBS-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
LIBS-$(CONFIG_SPL_FRAMEWORK) += common/spl/
LIBS-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/
LIBS-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/
LIBS-$(CONFIG_SPL_I2C_SUPPORT) += drivers/i2c/
LIBS-$(CONFIG_SPL_GPIO_SUPPORT) += drivers/gpio/
LIBS-$(CONFIG_SPL_MMC_SUPPORT) += drivers/mmc/
LIBS-$(CONFIG_SPL_MPC8XXX_INIT_DDR_SUPPORT) += drivers/ddr/fsl/
LIBS-$(CONFIG_SPL_SERIAL_SUPPORT) += drivers/serial/
LIBS-$(CONFIG_SPL_SPI_FLASH_SUPPORT) += drivers/mtd/spi/
LIBS-$(CONFIG_SPL_SPI_SUPPORT) += drivers/spi/
LIBS-y += fs/
LIBS-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/
LIBS-$(CONFIG_SPL_POWER_SUPPORT) += drivers/power/ \
drivers/power/pmic/
LIBS-$(if $(CONFIG_CMD_NAND),$(CONFIG_SPL_NAND_SUPPORT)) += drivers/mtd/nand/
LIBS-$(CONFIG_SPL_DRIVERS_MISC_SUPPORT) += drivers/misc/
LIBS-$(CONFIG_SPL_ONENAND_SUPPORT) += drivers/mtd/onenand/
LIBS-$(CONFIG_SPL_DMA_SUPPORT) += drivers/dma/
LIBS-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/
LIBS-$(CONFIG_SPL_NET_SUPPORT) += net/
LIBS-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/
LIBS-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/phy/
LIBS-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/net/phy/
LIBS-$(CONFIG_SPL_MUSB_NEW_SUPPORT) += drivers/usb/musb-new/
LIBS-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/usb/gadget/
LIBS-$(CONFIG_SPL_WATCHDOG_SUPPORT) += drivers/watchdog/
LIBS-$(CONFIG_SPL_USB_HOST_SUPPORT) += drivers/usb/host/
LIBS-$(CONFIG_OMAP_USB_PHY) += drivers/usb/phy/
LIBS-$(CONFIG_SPL_SATA_SUPPORT) += drivers/block/
ifneq (,$(CONFIG_MX23)$(CONFIG_MX35)$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35))
LIBS-y += arch/$(ARCH)/imx-common/
endif
LIBS-$(CONFIG_ARM) += arch/arm/cpu/
LIBS-$(CONFIG_PPC) += arch/powerpc/cpu/
LIBS-y := $(patsubst %/, %/built-in.o, $(LIBS-y))
# Add GCC lib
ifeq ("$(USE_PRIVATE_LIBGCC)", "yes")
PLATFORM_LIBS := $(SPLTREE)/arch/$(ARCH)/lib/lib.a
endif
LIBS-y := $(sort $(LIBS-y))
__START := $(head-y)
__LIBS := $(LIBS-y)
START := $(addprefix $(obj)/,$(head-y))
LIBS := $(addprefix $(obj)/,$(LIBS-y))
# Linker Script
ifdef CONFIG_SPL_LDSCRIPT
# need to strip off double quotes
LDSCRIPT := $(addprefix $(SRCTREE)/,$(CONFIG_SPL_LDSCRIPT:"%"=%))
endif
ifeq ($(wildcard $(LDSCRIPT)),)
LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-spl.lds
endif
ifeq ($(wildcard $(LDSCRIPT)),)
LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot-spl.lds
endif
ifeq ($(wildcard $(LDSCRIPT)),)
LDSCRIPT := $(TOPDIR)/arch/$(ARCH)/cpu/u-boot-spl.lds
endif
ifeq ($(wildcard $(LDSCRIPT)),)
$(error could not find linker script)
endif
# Special flags for CPP when processing the linker script.
# Pass the version down so we can handle backwards compatibility
# on the fly.
LDPPFLAGS += \
-include $(TOPDIR)/include/u-boot/u-boot.lds.h \
-include $(OBJTREE)/include/config.h \
-DCPUDIR=$(CPUDIR) \
$(shell $(LD) --version | \
sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
$(OBJTREE)/MLO: $(obj)/u-boot-spl.bin
$(OBJTREE)/tools/mkimage -T omapimage \
-a $(CONFIG_SPL_TEXT_BASE) -d $< $@
$(OBJTREE)/MLO.byteswap: $(obj)/u-boot-spl.bin
$(OBJTREE)/tools/mkimage -T omapimage -n byteswap \
-a $(CONFIG_SPL_TEXT_BASE) -d $< $@
$(objtree)/SPL : $(obj)/u-boot-spl.bin
$(MAKE) $(build)=spl/arch/arm/imx-common $@
ALL-y += $(obj)/$(SPL_BIN).bin
ifdef CONFIG_SAMSUNG
ALL-y += $(obj)/$(BOARD)-spl.bin
endif
all: $(ALL-y)
ifdef CONFIG_SAMSUNG
ifdef CONFIG_VAR_SIZE_SPL
VAR_SIZE_PARAM = --vs
else
VAR_SIZE_PARAM =
endif
$(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin
$(if $(wildcard $(OBJTREE)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\
$(OBJTREE)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\
$(OBJTREE)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@
endif
$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)
$(OBJCOPY) $(OBJCFLAGS) $(SPL_OBJCFLAGS) -O binary $< $@
LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
ifneq ($(CONFIG_SPL_TEXT_BASE),)
LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE)
endif
GEN_UBOOT = \
cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) $(__START) \
--start-group $(__LIBS) --end-group $(PLATFORM_LIBS) \
-Map $(SPL_BIN).map -o $(SPL_BIN)
$(obj)/$(SPL_BIN): $(START) $(LIBS) $(obj)/u-boot-spl.lds
$(GEN_UBOOT)
$(START):
@:
$(LIBS):
$(Q)$(MAKE) $(build)=$(patsubst %/,%,$(dir $@))
# FIX ME
cpp_flags := $(KBUILD_CPPFLAGS) $(CPPFLAGS) $(UBOOTINCLUDE) $(NOSTDINC_FLAGS)
$(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE
$(CPP) $(cpp_flags) $(LDPPFLAGS) -I$(obj). -ansi -D__ASSEMBLY__ -P - < $< > $@
PHONY += FORCE
FORCE:
# Declare the contents of the .PHONY variable as phony. We keep that
# information in a variable so we can use it in if_changed and friends.
.PHONY: $(PHONY)
|
