scripts/Makefile.spl

   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 -include include/config/auto.conf
  25 -include $(obj)/include/autoconf.mk
  26
  27 KBUILD_CPPFLAGS += -DCONFIG_SPL_BUILD
  28 ifeq ($(CONFIG_TPL_BUILD),y)
  29 KBUILD_CPPFLAGS += -DCONFIG_TPL_BUILD
  30 endif
  31
  32 ifeq ($(CONFIG_TPL_BUILD),y)
  33 SPL_BIN := u-boot-tpl
  34 else
  35 SPL_BIN := u-boot-spl
  36 endif
  37
  38 include $(srctree)/config.mk
  39 include $(srctree)/arch/$(ARCH)/Makefile
  40
  41 # Enable garbage collection of un-used sections for SPL
  42 KBUILD_CFLAGS += -ffunction-sections -fdata-sections
  43 LDFLAGS_FINAL += --gc-sections
  44
  45 # FIX ME
  46 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
  47                                                         $(NOSTDINC_FLAGS)
  48
  49 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
  50
  51 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
  52 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
  53
  54 libs-$(CONFIG_SPL_FRAMEWORK) += common/spl/
  55 libs-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/
  56 libs-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/
  57 libs-$(CONFIG_SPL_CLK_SUPPORT) += drivers/clk/
  58 libs-$(CONFIG_SPL_DM) += drivers/core/
  59 libs-$(CONFIG_SPL_I2C_SUPPORT) += drivers/i2c/
  60 libs-$(CONFIG_SPL_GPIO_SUPPORT) += drivers/gpio/
  61 libs-$(CONFIG_SPL_MMC_SUPPORT) += drivers/mmc/
  62 libs-$(CONFIG_SPL_MPC8XXX_INIT_DDR_SUPPORT) += drivers/ddr/fsl/
  63 libs-$(CONFIG_SYS_MVEBU_DDR_A38X) += drivers/ddr/marvell/a38x/
  64 libs-$(CONFIG_SYS_MVEBU_DDR_AXP) += drivers/ddr/marvell/axp/
  65 libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/
  66 libs-$(CONFIG_SPL_SERIAL_SUPPORT) += drivers/serial/
  67 libs-$(CONFIG_SPL_SPI_FLASH_SUPPORT) += drivers/mtd/spi/
  68 libs-$(CONFIG_SPL_SPI_SUPPORT) += drivers/spi/
  69 libs-y += fs/
  70 libs-$(CONFIG_SPL_LED_SUPPORT) += drivers/led/
  71 libs-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/
  72 libs-$(CONFIG_SPL_POWER_SUPPORT) += drivers/power/ drivers/power/pmic/
  73 libs-$(CONFIG_SPL_POWER_SUPPORT) += drivers/power/regulator/
  74 libs-$(CONFIG_SPL_MTD_SUPPORT) += drivers/mtd/
  75 libs-$(CONFIG_SPL_NAND_SUPPORT) += drivers/mtd/nand/
  76 libs-$(CONFIG_SPL_DRIVERS_MISC_SUPPORT) += drivers/misc/
  77 libs-$(CONFIG_SPL_ONENAND_SUPPORT) += drivers/mtd/onenand/
  78 libs-$(CONFIG_SPL_DMA_SUPPORT) += drivers/dma/
  79 libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/
  80 libs-$(CONFIG_SPL_NET_SUPPORT) += net/
  81 libs-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/
  82 libs-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/phy/
  83 libs-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/net/phy/
  84 libs-$(CONFIG_SPL_RAM_SUPPORT) += drivers/ram/
  85 libs-$(CONFIG_SPL_MUSB_NEW_SUPPORT) += drivers/usb/musb-new/
  86 libs-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/usb/gadget/
  87 libs-$(CONFIG_SPL_WATCHDOG_SUPPORT) += drivers/watchdog/
  88 libs-$(CONFIG_SPL_USB_HOST_SUPPORT) += drivers/usb/host/
  89 libs-$(CONFIG_OMAP_USB_PHY) += drivers/usb/phy/
  90 libs-$(CONFIG_SPL_SATA_SUPPORT) += drivers/block/
  91
  92 head-y          := $(addprefix $(obj)/,$(head-y))
  93 libs-y          := $(addprefix $(obj)/,$(libs-y))
  94 u-boot-spl-dirs := $(patsubst %/,%,$(filter %/, $(libs-y)))
  95
  96 libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
  97
  98 # Add GCC lib
  99 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
 100 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
 101 PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
 102 endif
 103
 104 u-boot-spl-init := $(head-y)
 105 u-boot-spl-main := $(libs-y)
 106
 107 # Linker Script
 108 ifdef CONFIG_SPL_LDSCRIPT
 109 # need to strip off double quotes
 110 LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%))
 111 endif
 112
 113 ifeq ($(wildcard $(LDSCRIPT)),)
 114         LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-spl.lds
 115 endif
 116 ifeq ($(wildcard $(LDSCRIPT)),)
 117         LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-spl.lds
 118 endif
 119 ifeq ($(wildcard $(LDSCRIPT)),)
 120         LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot-spl.lds
 121 endif
 122 ifeq ($(wildcard $(LDSCRIPT)),)
 123 $(error could not find linker script)
 124 endif
 125
 126 # Special flags for CPP when processing the linker script.
 127 # Pass the version down so we can handle backwards compatibility
 128 # on the fly.
 129 LDPPFLAGS += \
 130         -include $(srctree)/include/u-boot/u-boot.lds.h \
 131         -include $(objtree)/include/config.h \
 132         -DCPUDIR=$(CPUDIR) \
 133         $(shell $(LD) --version | \
 134           sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
 135
 136 quiet_cmd_mkimage = MKIMAGE $@
 137 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
 138         $(if $(KBUILD_VERBOSE:1=), >/dev/null)
 139
 140 MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE)
 141
 142 MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE)
 143
 144 MLO MLO.byteswap: $(obj)/u-boot-spl.bin
 145         $(call if_changed,mkimage)
 146
 147 MKIMAGEFLAGS_boot.bin = -T atmelimage
 148
 149 ifeq ($(CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER),y)
 150 MKIMAGEFLAGS_boot.bin += -n $(shell $(obj)/../tools/atmel_pmecc_params)
 151
 152 boot.bin: $(obj)/../tools/atmel_pmecc_params
 153 endif
 154
 155 boot.bin: $(obj)/u-boot-spl.bin
 156         $(call if_changed,mkimage)
 157
 158 ALL-y   += $(obj)/$(SPL_BIN).bin $(obj)/$(SPL_BIN).cfg
 159
 160 ALL-$(CONFIG_OF_SEPARATE) += $(obj)/$(SPL_BIN)-pad.bin $(obj)/$(SPL_BIN)-dtb.bin
 161
 162 ifdef CONFIG_SAMSUNG
 163 ALL-y   += $(obj)/$(BOARD)-spl.bin
 164 endif
 165
 166 ifdef CONFIG_SUNXI
 167 ALL-y   += $(obj)/sunxi-spl.bin
 168 endif
 169
 170 ifeq ($(CONFIG_SYS_SOC),"at91")
 171 ALL-y   += boot.bin
 172 endif
 173
 174 all:    $(ALL-y)
 175
 176 quiet_cmd_cat = CAT     $@
 177 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
 178
 179 $(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN).bin $(obj)/$(SPL_BIN)-pad.bin \
 180                 $(obj)/$(SPL_BIN).dtb FORCE
 181         $(call if_changed,cat)
 182
 183 # Create a file that pads from the end of u-boot-spl.bin to bss_end
 184 $(obj)/$(SPL_BIN)-pad.bin: $(obj)/$(SPL_BIN)
 185         @bss_size_str=$(shell $(NM) $< | awk 'BEGIN {size = 0} /__bss_size/ {size = $$1} END {print "ibase=16; " toupper(size)}' | bc); \
 186         dd if=/dev/zero of=$@ bs=1 count=$${bss_size_str} 2>/dev/null;
 187
 188 # Pass the original device tree file through fdtgrep twice. The first pass
 189 # removes any unwanted nodes (i.e. those which don't have the
 190 # 'u-boot,dm-pre-reloc' property and thus are not needed by SPL. The second
 191 # pass removes various unused properties from the remaining nodes.
 192 # The output is typically a much smaller device tree file.
 193 quiet_cmd_fdtgrep = FDTGREP $@
 194       cmd_fdtgrep = $(objtree)/tools/fdtgrep -b u-boot,dm-pre-reloc -RT $< \
 195                 -n /chosen -O dtb | \
 196         $(objtree)/tools/fdtgrep -r -O dtb - -o $@ \
 197                 $(addprefix -P ,$(subst $\",,$(CONFIG_OF_SPL_REMOVE_PROPS)))
 198
 199 $(obj)/$(SPL_BIN).dtb: dts/dt.dtb
 200         $(call cmd,fdtgrep)
 201
 202 quiet_cmd_cpp_cfg = CFG     $@
 203 cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
 204         -DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
 205
 206 $(obj)/$(SPL_BIN).cfg:  include/config.h
 207         $(call if_changed,cpp_cfg)
 208
 209 ifdef CONFIG_SAMSUNG
 210 ifdef CONFIG_VAR_SIZE_SPL
 211 VAR_SIZE_PARAM = --vs
 212 else
 213 VAR_SIZE_PARAM =
 214 endif
 215 $(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin
 216         $(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\
 217         $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\
 218         $(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@
 219 endif
 220
 221 quiet_cmd_objcopy = OBJCOPY $@
 222 cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
 223
 224 OBJCOPYFLAGS_$(SPL_BIN).bin = $(SPL_OBJCFLAGS) -O binary
 225
 226 $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN) FORCE
 227         $(call if_changed,objcopy)
 228
 229 LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
 230 ifneq ($(CONFIG_SPL_TEXT_BASE),)
 231 LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE)
 232 endif
 233
 234 ifdef CONFIG_SUNXI
 235 quiet_cmd_mksunxiboot = MKSUNXI $@
 236 cmd_mksunxiboot = $(objtree)/tools/mksunxiboot $< $@
 237 $(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin
 238         $(call if_changed,mksunxiboot)
 239 endif
 240
 241 quiet_cmd_u-boot-spl = LD      $@
 242       cmd_u-boot-spl = (cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \
 243                        $(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \
 244                        $(patsubst $(obj)/%,%,$(u-boot-spl-main)) --end-group \
 245                        $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN))
 246
 247 $(obj)/$(SPL_BIN): $(u-boot-spl-init) $(u-boot-spl-main) $(obj)/u-boot-spl.lds FORCE
 248         $(call if_changed,u-boot-spl)
 249
 250 $(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ;
 251
 252 PHONY += $(u-boot-spl-dirs)
 253 $(u-boot-spl-dirs):
 254         $(Q)$(MAKE) $(build)=$@
 255
 256 quiet_cmd_cpp_lds = LDS     $@
 257 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
 258                 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
 259
 260 $(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE
 261         $(call if_changed_dep,cpp_lds)
 262
 263 # read all saved command lines
 264
 265 targets := $(wildcard $(sort $(targets)))
 266 cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
 267
 268 ifneq ($(cmd_files),)
 269   $(cmd_files): ;       # Do not try to update included dependency files
 270   include $(cmd_files)
 271 endif
 272
 273 PHONY += FORCE
 274 FORCE:
 275
 276 # Declare the contents of the .PHONY variable as phony.  We keep that
 277 # information in a variable so we can use it in if_changed and friends.
 278 .PHONY: $(PHONY)