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 # SPDX-License-Identifier:      GPL-2.0+
  13 #
  14 # Based on top-level Makefile.
  15 #
  16
  17 src := $(obj)
  18
  19 # Create output directory if not already present
  20 _dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj))
  21
  22 include $(srctree)/scripts/Kbuild.include
  23
  24 CONFIG_SPL_BUILD := y
  25 export CONFIG_SPL_BUILD
  26
  27 KBUILD_CPPFLAGS += -DCONFIG_SPL_BUILD
  28 ifeq ($(CONFIG_TPL_BUILD),y)
  29 KBUILD_CPPFLAGS += -DCONFIG_TPL_BUILD
  30 endif
  31
  32 # Enable garbage collection of un-used sections for SPL
  33 KBUILD_CFLAGS += -ffunction-sections -fdata-sections
  34 LDFLAGS_FINAL += --gc-sections
  35
  36 ifeq ($(CONFIG_TPL_BUILD),y)
  37 export CONFIG_TPL_BUILD
  38 SPL_BIN := u-boot-tpl
  39 else
  40 SPL_BIN := u-boot-spl
  41 endif
  42
  43 include include/config.mk
  44
  45 ifeq ($(CONFIG_TPL_BUILD),y)
  46   -include include/tpl-autoconf.mk
  47 else
  48   -include include/spl-autoconf.mk
  49 endif
  50
  51 include $(TOPDIR)/config.mk
  52
  53 # FIX ME
  54 c_flags := $(KBUILD_CFLAGS) $(KBUILD_CPPFLAGS) $(CPPFLAGS) $(UBOOTINCLUDE) $(NOSTDINC_FLAGS)
  55
  56 # Auto-generate the spl-autoconf.mk file (which is included by all makefiles for SPL)
  57 quiet_cmd_autoconf = GEN     $@
  58       cmd_autoconf = \
  59         $(CPP) $(c_flags) -DDO_DEPS_ONLY -dM $(srctree)/include/common.h > $@.tmp && \
  60                 sed -n -f $(srctree)/tools/scripts/define2mk.sed $@.tmp > $@; \
  61         rm $@.tmp
  62
  63 include/tpl-autoconf.mk: include/config.h
  64         $(call cmd,autoconf)
  65
  66 include/spl-autoconf.mk: include/config.h
  67         $(call cmd,autoconf)
  68
  69 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(SRCTREE)/board/$(VENDOR)/common/Makefile),y,n)
  70
  71 ifdef   CONFIG_SPL_START_S_PATH
  72 START_PATH := $(CONFIG_SPL_START_S_PATH:"%"=%)
  73 else
  74 START_PATH := $(CPUDIR)
  75 endif
  76
  77 head-y := $(START_PATH)/start.o
  78 head-$(CONFIG_X86) += $(START_PATH)/start16.o $(START_PATH)/resetvec.o
  79 head-$(CONFIG_4xx) += $(START_PATH)/resetvec.o
  80 head-$(CONFIG_MPC85xx) += $(START_PATH)/resetvec.o
  81
  82 libs-y += arch/$(ARCH)/lib/
  83
  84 libs-y += $(CPUDIR)/
  85
  86 ifdef SOC
  87 libs-y += $(CPUDIR)/$(SOC)/
  88 endif
  89 libs-y += board/$(BOARDDIR)/
  90 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
  91
  92 libs-$(CONFIG_SPL_FRAMEWORK) += common/spl/
  93 libs-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/
  94 libs-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/
  95 libs-$(CONFIG_SPL_I2C_SUPPORT) += drivers/i2c/
  96 libs-$(CONFIG_SPL_GPIO_SUPPORT) += drivers/gpio/
  97 libs-$(CONFIG_SPL_MMC_SUPPORT) += drivers/mmc/
  98 libs-$(CONFIG_SPL_MPC8XXX_INIT_DDR_SUPPORT) += drivers/ddr/fsl/
  99 libs-$(CONFIG_SPL_SERIAL_SUPPORT) += drivers/serial/
 100 libs-$(CONFIG_SPL_SPI_FLASH_SUPPORT) += drivers/mtd/spi/
 101 libs-$(CONFIG_SPL_SPI_SUPPORT) += drivers/spi/
 102 libs-y += fs/
 103 libs-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/
 104 libs-$(CONFIG_SPL_POWER_SUPPORT) += drivers/power/ drivers/power/pmic/
 105 libs-$(if $(CONFIG_CMD_NAND),$(CONFIG_SPL_NAND_SUPPORT)) += drivers/mtd/nand/
 106 libs-$(CONFIG_SPL_DRIVERS_MISC_SUPPORT) += drivers/misc/
 107 libs-$(CONFIG_SPL_ONENAND_SUPPORT) += drivers/mtd/onenand/
 108 libs-$(CONFIG_SPL_DMA_SUPPORT) += drivers/dma/
 109 libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/
 110 libs-$(CONFIG_SPL_NET_SUPPORT) += net/
 111 libs-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/
 112 libs-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/phy/
 113 libs-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/net/phy/
 114 libs-$(CONFIG_SPL_MUSB_NEW_SUPPORT) += drivers/usb/musb-new/
 115 libs-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/usb/gadget/
 116 libs-$(CONFIG_SPL_WATCHDOG_SUPPORT) += drivers/watchdog/
 117 libs-$(CONFIG_SPL_USB_HOST_SUPPORT) += drivers/usb/host/
 118 libs-$(CONFIG_OMAP_USB_PHY) += drivers/usb/phy/
 119 libs-$(CONFIG_SPL_SATA_SUPPORT) += drivers/block/
 120
 121 ifneq (,$(CONFIG_MX23)$(CONFIG_MX35)$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35))
 122 libs-y += arch/$(ARCH)/imx-common/
 123 endif
 124
 125 libs-$(CONFIG_ARM) += arch/arm/cpu/
 126 libs-$(CONFIG_PPC) += arch/powerpc/cpu/
 127
 128 head-y          := $(addprefix $(obj)/,$(head-y))
 129 libs-y          := $(addprefix $(obj)/,$(libs-y))
 130 u-boot-spl-dirs := $(patsubst %/,%,$(filter %/, $(libs-y)))
 131
 132 libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
 133
 134 # Add GCC lib
 135 ifeq ("$(USE_PRIVATE_LIBGCC)", "yes")
 136 PLATFORM_LIBGCC = $(SPLTREE)/arch/$(ARCH)/lib/lib.a
 137 PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
 138 endif
 139
 140 u-boot-spl-init := $(head-y)
 141 u-boot-spl-main := $(libs-y)
 142
 143 # Linker Script
 144 ifdef CONFIG_SPL_LDSCRIPT
 145 # need to strip off double quotes
 146 LDSCRIPT := $(addprefix $(SRCTREE)/,$(CONFIG_SPL_LDSCRIPT:"%"=%))
 147 endif
 148
 149 ifeq ($(wildcard $(LDSCRIPT)),)
 150         LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-spl.lds
 151 endif
 152 ifeq ($(wildcard $(LDSCRIPT)),)
 153         LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot-spl.lds
 154 endif
 155 ifeq ($(wildcard $(LDSCRIPT)),)
 156         LDSCRIPT := $(TOPDIR)/arch/$(ARCH)/cpu/u-boot-spl.lds
 157 endif
 158 ifeq ($(wildcard $(LDSCRIPT)),)
 159 $(error could not find linker script)
 160 endif
 161
 162 # Special flags for CPP when processing the linker script.
 163 # Pass the version down so we can handle backwards compatibility
 164 # on the fly.
 165 LDPPFLAGS += \
 166         -include $(TOPDIR)/include/u-boot/u-boot.lds.h \
 167         -include $(OBJTREE)/include/config.h \
 168         -DCPUDIR=$(CPUDIR) \
 169         $(shell $(LD) --version | \
 170           sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
 171
 172 quiet_cmd_mkimage = UIMAGE  $@
 173 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
 174         $(if $(KBUILD_VERBOSE:1=), >/dev/null)
 175
 176 MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE)
 177
 178 MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE)
 179
 180 MLO MLO.byteswap: $(obj)/u-boot-spl.bin
 181         $(call if_changed,mkimage)
 182
 183 ALL-y   += $(obj)/$(SPL_BIN).bin
 184
 185 ifdef CONFIG_SAMSUNG
 186 ALL-y   += $(obj)/$(BOARD)-spl.bin
 187 endif
 188
 189 all:    $(ALL-y)
 190
 191 ifdef CONFIG_SAMSUNG
 192 ifdef CONFIG_VAR_SIZE_SPL
 193 VAR_SIZE_PARAM = --vs
 194 else
 195 VAR_SIZE_PARAM =
 196 endif
 197 $(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin
 198         $(if $(wildcard $(OBJTREE)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\
 199         $(OBJTREE)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\
 200         $(OBJTREE)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@
 201 endif
 202
 203 quiet_cmd_objcopy = OBJCOPY $@
 204 cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
 205
 206 OBJCOPYFLAGS_$(SPL_BIN).bin = $(SPL_OBJCFLAGS) -O binary
 207
 208 $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN) FORCE
 209         $(call if_changed,objcopy)
 210
 211 LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
 212 ifneq ($(CONFIG_SPL_TEXT_BASE),)
 213 LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE)
 214 endif
 215
 216 quiet_cmd_u-boot-spl = LD      $@
 217       cmd_u-boot-spl = cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \
 218                        $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \
 219                        $(patsubst $(obj)/%,%,$(u-boot-spl-main)) --end-group \
 220                        $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN)
 221
 222 $(obj)/$(SPL_BIN): $(u-boot-spl-init) $(u-boot-spl-main) $(obj)/u-boot-spl.lds
 223         $(call cmd,u-boot-spl)
 224
 225 $(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ;
 226
 227 PHONY += $(u-boot-spl-dirs)
 228 $(u-boot-spl-dirs):
 229         $(Q)$(MAKE) $(build)=$@
 230
 231 # FIX ME
 232 cpp_flags := $(KBUILD_CPPFLAGS) $(CPPFLAGS) $(UBOOTINCLUDE) $(NOSTDINC_FLAGS)
 233
 234 quiet_cmd_cpp_lds = LDS     $@
 235 cmd_cpp_lds = $(CPP) $(cpp_flags) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ \
 236                 -x assembler-with-cpp -P -o $@ $<
 237
 238 $(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE
 239         $(call if_changed,cpp_lds)
 240
 241 # read all saved command lines
 242
 243 targets := $(wildcard $(sort $(targets)))
 244 cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
 245
 246 ifneq ($(cmd_files),)
 247   $(cmd_files): ;       # Do not try to update included dependency files
 248   include $(cmd_files)
 249 endif
 250
 251 PHONY += FORCE
 252 FORCE:
 253
 254 # Declare the contents of the .PHONY variable as phony.  We keep that
 255 # information in a variable so we can use it in if_changed and friends.
 256 .PHONY: $(PHONY)