Merge branch 'master' of git://git.denx.de/u-boot-mpc83xx
[platform/kernel/u-boot.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 # This file is released under the terms of GPL v2 and any later version.
13 # See the file COPYING in the root directory of the source tree for details.
14 #
15 # Based on top-level Makefile.
16 #
17
18 CONFIG_SPL_BUILD := y
19 export CONFIG_SPL_BUILD
20
21 include $(TOPDIR)/config.mk
22
23 # We want the final binaries in this directory
24 obj := $(OBJTREE)/spl/
25
26 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(SRCTREE)/board/$(VENDOR)/common/Makefile),y,n)
27
28 ifdef   CONFIG_SPL_START_S_PATH
29 START_PATH := $(subst ",,$(CONFIG_SPL_START_S_PATH))
30 else
31 START_PATH := $(CPUDIR)
32 endif
33
34 START := $(START_PATH)/start.o
35
36 LIBS-y += arch/$(ARCH)/lib/lib$(ARCH).o
37 LIBS-y += $(CPUDIR)/lib$(CPU).o
38 ifdef SOC
39 LIBS-y += $(CPUDIR)/$(SOC)/lib$(SOC).o
40 endif
41 LIBS-y += board/$(BOARDDIR)/lib$(BOARD).o
42 LIBS-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/lib$(VENDOR).o
43
44 LIBS-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/libcommon.o
45 LIBS-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/libdisk.o
46 LIBS-$(CONFIG_SPL_I2C_SUPPORT) += drivers/i2c/libi2c.o
47 LIBS-$(CONFIG_SPL_GPIO_SUPPORT) += drivers/gpio/libgpio.o
48 LIBS-$(CONFIG_SPL_MMC_SUPPORT) += drivers/mmc/libmmc.o
49 LIBS-$(CONFIG_SPL_SERIAL_SUPPORT) += drivers/serial/libserial.o
50 LIBS-$(CONFIG_SPL_SPI_FLASH_SUPPORT) += drivers/mtd/spi/libspi_flash.o
51 LIBS-$(CONFIG_SPL_SPI_SUPPORT) += drivers/spi/libspi.o
52 LIBS-$(CONFIG_SPL_FAT_SUPPORT) += fs/fat/libfat.o
53 LIBS-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/libgeneric.o
54 LIBS-$(CONFIG_SPL_POWER_SUPPORT) += drivers/power/libpower.o
55 LIBS-$(CONFIG_SPL_NAND_SUPPORT) += drivers/mtd/nand/libnand.o
56 LIBS-$(CONFIG_SPL_ONENAND_SUPPORT) += drivers/mtd/onenand/libonenand.o
57 LIBS-$(CONFIG_SPL_DMA_SUPPORT) += drivers/dma/libdma.o
58 LIBS-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/memory.o
59
60 ifneq ($(CONFIG_AM33XX)$(CONFIG_OMAP34XX)$(CONFIG_OMAP44XX)$(CONFIG_OMAP54XX),)
61 LIBS-y += $(CPUDIR)/omap-common/libomap-common.o
62 endif
63
64 ifeq ($(SOC),tegra20)
65 LIBS-y += arch/$(ARCH)/cpu/$(SOC)-common/lib$(SOC)-common.o
66 endif
67
68 # Add GCC lib
69 ifeq ("$(USE_PRIVATE_LIBGCC)", "yes")
70 PLATFORM_LIBGCC = $(SPLTREE)/arch/$(ARCH)/lib/libgcc.o
71 PLATFORM_LIBS := $(filter-out %/libgcc.o, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
72 endif
73
74 START := $(addprefix $(SPLTREE)/,$(START))
75 LIBS := $(addprefix $(SPLTREE)/,$(sort $(LIBS-y)))
76
77 __START := $(subst $(obj),,$(START))
78 __LIBS := $(subst $(obj),,$(LIBS))
79
80 # Linker Script
81 ifdef CONFIG_SPL_LDSCRIPT
82 # need to strip off double quotes
83 LDSCRIPT := $(addprefix $(SRCTREE)/,$(subst ",,$(CONFIG_SPL_LDSCRIPT)))
84 endif
85
86 ifeq ($(wildcard $(LDSCRIPT)),)
87         LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-spl.lds
88 endif
89 ifeq ($(wildcard $(LDSCRIPT)),)
90         LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot-spl.lds
91 endif
92 ifeq ($(wildcard $(LDSCRIPT)),)
93         LDSCRIPT := $(TOPDIR)/arch/$(ARCH)/cpu/u-boot.lds
94 endif
95 ifeq ($(wildcard $(LDSCRIPT)),)
96 $(error could not find linker script)
97 endif
98
99 # Special flags for CPP when processing the linker script.
100 # Pass the version down so we can handle backwards compatibility
101 # on the fly.
102 LDPPFLAGS += \
103         -include $(TOPDIR)/include/u-boot/u-boot.lds.h \
104         -include $(OBJTREE)/include/config.h \
105         -DCPUDIR=$(CPUDIR) \
106         $(shell $(LD) --version | \
107           sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
108
109 ifdef CONFIG_OMAP
110 $(OBJTREE)/MLO: $(obj)u-boot-spl.bin
111         $(OBJTREE)/tools/mkimage -T omapimage \
112                 -a $(CONFIG_SPL_TEXT_BASE) -d $< $@
113 endif
114 ifdef CONFIG_AM33XX
115 $(OBJTREE)/MLO: $(obj)u-boot-spl.bin
116         $(OBJTREE)/tools/mkimage -T omapimage \
117                 -a $(CONFIG_SPL_TEXT_BASE) -d $< $@
118 endif
119
120 ALL-y   += $(obj)u-boot-spl.bin
121
122 ifdef CONFIG_SAMSUNG
123 ALL-y   += $(obj)$(BOARD)-spl.bin
124 endif
125
126 all:    $(ALL-y)
127
128 ifdef CONFIG_SAMSUNG
129 $(obj)$(BOARD)-spl.bin: $(obj)u-boot-spl.bin
130         $(OBJTREE)/tools/mk$(BOARD)spl \
131                 $(obj)u-boot-spl.bin $(obj)$(BOARD)-spl.bin
132 endif
133
134 $(obj)u-boot-spl.bin:   $(obj)u-boot-spl
135         $(OBJCOPY) $(OBJCFLAGS) -O binary $< $@
136
137 GEN_UBOOT = \
138         cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) $(__START) \
139                 --start-group $(__LIBS) --end-group $(PLATFORM_LIBS) \
140                 -Map u-boot-spl.map -o u-boot-spl
141
142 $(obj)u-boot-spl:       depend $(START) $(LIBS) $(obj)u-boot-spl.lds
143         $(GEN_UBOOT)
144
145 $(START):       depend
146         $(MAKE) -C $(SRCTREE)/$(START_PATH) $@
147
148 $(LIBS):        depend
149         $(MAKE) -C $(SRCTREE)$(dir $(subst $(SPLTREE),,$@))
150
151 $(obj)u-boot-spl.lds: $(LDSCRIPT) depend
152         $(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - < $< > $@
153
154 depend: $(obj).depend
155 .PHONY: depend
156
157 # defines $(obj).depend target
158 include $(SRCTREE)/rules.mk