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 $< $@
 136
 137 GEN_UBOOT = \
 138         UNDEF_SYM=`$(OBJDUMP) -x $(LIBS) | \
 139         sed  -n -e 's/.*\($(SYM_PREFIX)__u_boot_cmd_.*\)/-u\1/p'|sort|uniq`;\
 140         cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) $$UNDEF_SYM $(__START) \
 141                 --start-group $(__LIBS) --end-group $(PLATFORM_LIBS) \
 142                 -Map u-boot-spl.map -o u-boot-spl
 143
 144 $(obj)u-boot-spl:       depend $(START) $(LIBS) $(obj)u-boot-spl.lds
 145         $(GEN_UBOOT)
 146
 147 $(START):       depend
 148         $(MAKE) -C $(SRCTREE)/$(START_PATH) $@
 149
 150 $(LIBS):        depend
 151         $(MAKE) -C $(SRCTREE)$(dir $(subst $(SPLTREE),,$@))
 152
 153 $(obj)u-boot-spl.lds: $(LDSCRIPT) depend
 154         $(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - < $< > $@
 155
 156 depend: $(obj).depend
 157 .PHONY: depend
 158
 159 # defines $(obj).depend target
 160 include $(SRCTREE)/rules.mk