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 := $(shell [ -f $(SRCTREE)/board/$(VENDOR)/common/Makefile ] \
  27                         && echo y || echo n)
  28
  29 ifdef   CONFIG_SPL_START_S_PATH
  30 START_PATH := $(subst ",,$(CONFIG_SPL_START_S_PATH))
  31 else
  32 START_PATH := $(CPUDIR)
  33 endif
  34
  35 START := $(START_PATH)/start.o
  36
  37 LIBS-y += arch/$(ARCH)/lib/lib$(ARCH).o
  38 LIBS-y += $(CPUDIR)/lib$(CPU).o
  39 ifdef SOC
  40 LIBS-y += $(CPUDIR)/$(SOC)/lib$(SOC).o
  41 endif
  42 LIBS-y += board/$(BOARDDIR)/lib$(BOARD).o
  43 LIBS-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/lib$(VENDOR).o
  44
  45 LIBS-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/libcommon.o
  46 LIBS-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/libdisk.o
  47 LIBS-$(CONFIG_SPL_I2C_SUPPORT) += drivers/i2c/libi2c.o
  48 LIBS-$(CONFIG_SPL_GPIO_SUPPORT) += drivers/gpio/libgpio.o
  49 LIBS-$(CONFIG_SPL_MMC_SUPPORT) += drivers/mmc/libmmc.o
  50 LIBS-$(CONFIG_SPL_SERIAL_SUPPORT) += drivers/serial/libserial.o
  51 LIBS-$(CONFIG_SPL_SPI_FLASH_SUPPORT) += drivers/mtd/spi/libspi_flash.o
  52 LIBS-$(CONFIG_SPL_SPI_SUPPORT) += drivers/spi/libspi.o
  53 LIBS-$(CONFIG_SPL_FAT_SUPPORT) += fs/fat/libfat.o
  54 LIBS-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/libgeneric.o
  55 LIBS-$(CONFIG_SPL_POWER_SUPPORT) += drivers/power/libpower.o
  56 LIBS-$(CONFIG_SPL_NAND_SUPPORT) += drivers/mtd/nand/libnand.o
  57 LIBS-$(CONFIG_SPL_DMA_SUPPORT) += drivers/dma/libdma.o
  58
  59 ifeq ($(SOC),omap3)
  60 LIBS-y += $(CPUDIR)/omap-common/libomap-common.o
  61 endif
  62 ifeq ($(SOC),omap4)
  63 LIBS-y += $(CPUDIR)/omap-common/libomap-common.o
  64 endif
  65
  66 START := $(addprefix $(SPLTREE)/,$(START))
  67 LIBS := $(addprefix $(SPLTREE)/,$(sort $(LIBS-y)))
  68
  69 __START := $(subst $(obj),,$(START))
  70 __LIBS := $(subst $(obj),,$(LIBS))
  71
  72 # Linker Script
  73 ifdef CONFIG_SPL_LDSCRIPT
  74 # need to strip off double quotes
  75 LDSCRIPT := $(addprefix $(SRCTREE)/,$(subst ",,$(CONFIG_SPL_LDSCRIPT)))
  76 endif
  77
  78 ifeq ($(wildcard $(LDSCRIPT)),)
  79         LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-spl.lds
  80 endif
  81 ifeq ($(wildcard $(LDSCRIPT)),)
  82         LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot-spl.lds
  83 endif
  84 ifeq ($(wildcard $(LDSCRIPT)),)
  85 $(error could not find linker script)
  86 endif
  87
  88 # Special flags for CPP when processing the linker script.
  89 # Pass the version down so we can handle backwards compatibility
  90 # on the fly.
  91 LDPPFLAGS += \
  92         -include $(TOPDIR)/include/u-boot/u-boot.lds.h \
  93         -include $(OBJTREE)/include/config.h \
  94         $(shell $(LD) --version | \
  95           sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
  96
  97 ifdef CONFIG_OMAP
  98 $(OBJTREE)/MLO: $(obj)u-boot-spl.bin
  99         $(OBJTREE)/tools/mkimage -T omapimage \
 100                 -a $(CONFIG_SPL_TEXT_BASE) -d $< $@
 101 endif
 102
 103 ALL-y   += $(obj)u-boot-spl.bin
 104
 105 ifdef CONFIG_SAMSUNG
 106 ALL-y   += $(obj)$(BOARD)-spl.bin
 107 endif
 108
 109 all:    $(ALL-y)
 110
 111 ifdef CONFIG_SAMSUNG
 112 $(obj)$(BOARD)-spl.bin: $(obj)u-boot-spl.bin
 113         $(TOPDIR)/board/$(BOARDDIR)/tools/mk$(BOARD)spl.exe \
 114                 $(obj)u-boot-spl.bin $(obj)$(BOARD)-spl.bin
 115 endif
 116
 117 $(obj)u-boot-spl.bin:   $(obj)u-boot-spl
 118         $(OBJCOPY) $(OBJCFLAGS) -O binary $< $@
 119
 120 GEN_UBOOT = \
 121         UNDEF_SYM=`$(OBJDUMP) -x $(LIBS) | \
 122         sed  -n -e 's/.*\($(SYM_PREFIX)__u_boot_cmd_.*\)/-u\1/p'|sort|uniq`;\
 123         cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) $$UNDEF_SYM $(__START) \
 124                 --start-group $(__LIBS) --end-group $(PLATFORM_LIBS) \
 125                 -Map u-boot-spl.map -o u-boot-spl
 126
 127 $(obj)u-boot-spl:       depend $(START) $(LIBS) $(obj)u-boot-spl.lds
 128         $(GEN_UBOOT)
 129
 130 $(START):       depend
 131         $(MAKE) -C $(SRCTREE)/$(START_PATH) $@
 132
 133 $(LIBS):        depend
 134         $(MAKE) -C $(SRCTREE)$(dir $(subst $(SPLTREE),,$@))
 135
 136 $(obj)u-boot-spl.lds: $(LDSCRIPT) depend
 137         $(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - < $< > $@
 138
 139 depend: $(obj).depend
 140 .PHONY: depend
 141
 142 # defines $(obj).depend target
 143 include $(SRCTREE)/rules.mk