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
|
#
# (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>
#
# This file is released under the terms of GPL v2 and any later version.
# See the file COPYING in the root directory of the source tree for details.
#
# Based on top-level Makefile.
#
CONFIG_SPL_BUILD := y
export CONFIG_SPL_BUILD
include $(TOPDIR)/config.mk
# We want the final binaries in this directory
obj := $(OBJTREE)/spl/
HAVE_VENDOR_COMMON_LIB := $(shell [ -f $(SRCTREE)/board/$(VENDOR)/common/Makefile ] \
&& echo y || echo n)
START := $(CPUDIR)/start.o
LIBS-y += arch/$(ARCH)/lib/lib$(ARCH).o
LIBS-y += $(CPUDIR)/lib$(CPU).o
ifdef SOC
LIBS-y += $(CPUDIR)/$(SOC)/lib$(SOC).o
endif
LIBS-y += board/$(BOARDDIR)/lib$(BOARD).o
LIBS-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/lib$(VENDOR).o
LIBS-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/libcommon.o
LIBS-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/libdisk.o
LIBS-$(CONFIG_SPL_I2C_SUPPORT) += drivers/i2c/libi2c.o
LIBS-$(CONFIG_SPL_GPIO_SUPPORT) += drivers/gpio/libgpio.o
LIBS-$(CONFIG_SPL_MMC_SUPPORT) += drivers/mmc/libmmc.o
LIBS-$(CONFIG_SPL_SERIAL_SUPPORT) += drivers/serial/libserial.o
LIBS-$(CONFIG_SPL_SPI_FLASH_SUPPORT) += drivers/mtd/spi/libspi_flash.o
LIBS-$(CONFIG_SPL_SPI_SUPPORT) += drivers/spi/libspi.o
LIBS-$(CONFIG_SPL_FAT_SUPPORT) += fs/fat/libfat.o
LIBS-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/libgeneric.o
ifeq ($(SOC),omap3)
LIBS-y += $(CPUDIR)/omap-common/libomap-common.o
endif
ifeq ($(SOC),omap4)
LIBS-y += $(CPUDIR)/omap-common/libomap-common.o
endif
START := $(addprefix $(SPLTREE)/,$(START))
LIBS := $(addprefix $(SPLTREE)/,$(sort $(LIBS-y)))
__START := $(subst $(obj),,$(START))
__LIBS := $(subst $(obj),,$(LIBS))
# Linker Script
ifdef CONFIG_SPL_LDSCRIPT
# need to strip off double quotes
LDSCRIPT := $(addprefix $(SRCTREE)/,$(subst ",,$(CONFIG_SPL_LDSCRIPT)))
endif
ifeq ($(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)),)
$(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 \
$(shell $(LD) --version | \
sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
ALL-y += $(obj)u-boot-spl.bin
all: $(ALL-y)
$(obj)u-boot-spl.bin: $(obj)u-boot-spl
$(OBJCOPY) $(OBJCFLAGS) -O binary $< $@
GEN_UBOOT = \
UNDEF_SYM=`$(OBJDUMP) -x $(LIBS) | \
sed -n -e 's/.*\($(SYM_PREFIX)__u_boot_cmd_.*\)/-u\1/p'|sort|uniq`;\
cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) $$UNDEF_SYM $(__START) \
--start-group $(__LIBS) --end-group $(PLATFORM_LIBS) \
-Map u-boot-spl.map -o u-boot-spl
$(obj)u-boot-spl: depend $(START) $(LIBS) $(obj)u-boot-spl.lds
$(GEN_UBOOT)
$(START): depend
$(MAKE) -C $(SRCTREE)/$(CPUDIR) $@
$(LIBS): depend
$(MAKE) -C $(SRCTREE)$(dir $(subst $(SPLTREE),,$@))
$(obj)u-boot-spl.lds: $(LDSCRIPT) depend
$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - < $< > $@
depend: $(obj).depend
.PHONY: depend
# defines $(obj).depend target
include $(SRCTREE)/rules.mk
|
