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 $(TOPDIR)/config.mk
  44
  45 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(SRCTREE)/board/$(VENDOR)/common/Makefile),y,n)
  46
  47 ifdef   CONFIG_SPL_START_S_PATH
  48 START_PATH := $(CONFIG_SPL_START_S_PATH:"%"=%)
  49 else
  50 START_PATH := $(CPUDIR)
  51 endif
  52
  53 head-y := $(START_PATH)/start.o
  54 head-$(CONFIG_X86) += $(START_PATH)/start16.o $(START_PATH)/resetvec.o
  55 head-$(CONFIG_4xx) += $(START_PATH)/resetvec.o
  56 head-$(CONFIG_MPC85xx) += $(START_PATH)/resetvec.o
  57
  58 LIBS-y += arch/$(ARCH)/lib/
  59
  60 LIBS-y += $(CPUDIR)/
  61
  62 ifdef SOC
  63 LIBS-y += $(CPUDIR)/$(SOC)/
  64 endif
  65 LIBS-y += board/$(BOARDDIR)/
  66 LIBS-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
  67
  68 LIBS-$(CONFIG_SPL_FRAMEWORK) += common/spl/
  69 LIBS-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/
  70 LIBS-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/
  71 LIBS-$(CONFIG_SPL_I2C_SUPPORT) += drivers/i2c/
  72 LIBS-$(CONFIG_SPL_GPIO_SUPPORT) += drivers/gpio/
  73 LIBS-$(CONFIG_SPL_MMC_SUPPORT) += drivers/mmc/
  74 LIBS-$(CONFIG_SPL_MPC8XXX_INIT_DDR_SUPPORT) += drivers/ddr/fsl/
  75 LIBS-$(CONFIG_SPL_SERIAL_SUPPORT) += drivers/serial/
  76 LIBS-$(CONFIG_SPL_SPI_FLASH_SUPPORT) += drivers/mtd/spi/
  77 LIBS-$(CONFIG_SPL_SPI_SUPPORT) += drivers/spi/
  78 LIBS-y += fs/
  79 LIBS-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/
  80 LIBS-$(CONFIG_SPL_POWER_SUPPORT) += drivers/power/ \
  81         drivers/power/pmic/
  82 LIBS-$(if $(CONFIG_CMD_NAND),$(CONFIG_SPL_NAND_SUPPORT)) += drivers/mtd/nand/
  83 LIBS-$(CONFIG_SPL_DRIVERS_MISC_SUPPORT) += drivers/misc/
  84 LIBS-$(CONFIG_SPL_ONENAND_SUPPORT) += drivers/mtd/onenand/
  85 LIBS-$(CONFIG_SPL_DMA_SUPPORT) += drivers/dma/
  86 LIBS-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/
  87 LIBS-$(CONFIG_SPL_NET_SUPPORT) += net/
  88 LIBS-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/
  89 LIBS-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/phy/
  90 LIBS-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/net/phy/
  91 LIBS-$(CONFIG_SPL_MUSB_NEW_SUPPORT) += drivers/usb/musb-new/
  92 LIBS-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/usb/gadget/
  93 LIBS-$(CONFIG_SPL_WATCHDOG_SUPPORT) += drivers/watchdog/
  94 LIBS-$(CONFIG_SPL_USB_HOST_SUPPORT) += drivers/usb/host/
  95 LIBS-$(CONFIG_OMAP_USB_PHY) += drivers/usb/phy/
  96 LIBS-$(CONFIG_SPL_SATA_SUPPORT) += drivers/block/
  97
  98 ifneq (,$(CONFIG_MX23)$(CONFIG_MX35)$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35))
  99 LIBS-y += arch/$(ARCH)/imx-common/
 100 endif
 101
 102 LIBS-$(CONFIG_ARM) += arch/arm/cpu/
 103 LIBS-$(CONFIG_PPC) += arch/powerpc/cpu/
 104
 105 LIBS-y := $(patsubst %/, %/built-in.o, $(LIBS-y))
 106
 107 # Add GCC lib
 108 ifeq ("$(USE_PRIVATE_LIBGCC)", "yes")
 109 PLATFORM_LIBGCC = $(SPLTREE)/arch/$(ARCH)/lib/libgcc.o
 110 PLATFORM_LIBS := $(filter-out %/libgcc.o, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
 111 endif
 112
 113 LIBS-y := $(sort $(LIBS-y))
 114
 115 __START := $(head-y)
 116 __LIBS := $(LIBS-y)
 117
 118 START := $(addprefix $(obj)/,$(head-y))
 119 LIBS := $(addprefix $(obj)/,$(LIBS-y))
 120
 121 # Linker Script
 122 ifdef CONFIG_SPL_LDSCRIPT
 123 # need to strip off double quotes
 124 LDSCRIPT := $(addprefix $(SRCTREE)/,$(CONFIG_SPL_LDSCRIPT:"%"=%))
 125 endif
 126
 127 ifeq ($(wildcard $(LDSCRIPT)),)
 128         LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-spl.lds
 129 endif
 130 ifeq ($(wildcard $(LDSCRIPT)),)
 131         LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot-spl.lds
 132 endif
 133 ifeq ($(wildcard $(LDSCRIPT)),)
 134         LDSCRIPT := $(TOPDIR)/arch/$(ARCH)/cpu/u-boot-spl.lds
 135 endif
 136 ifeq ($(wildcard $(LDSCRIPT)),)
 137 $(error could not find linker script)
 138 endif
 139
 140 # Special flags for CPP when processing the linker script.
 141 # Pass the version down so we can handle backwards compatibility
 142 # on the fly.
 143 LDPPFLAGS += \
 144         -include $(TOPDIR)/include/u-boot/u-boot.lds.h \
 145         -include $(OBJTREE)/include/config.h \
 146         -DCPUDIR=$(CPUDIR) \
 147         $(shell $(LD) --version | \
 148           sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
 149
 150 $(OBJTREE)/MLO: $(obj)/u-boot-spl.bin
 151         $(OBJTREE)/tools/mkimage -T omapimage \
 152                 -a $(CONFIG_SPL_TEXT_BASE) -d $< $@
 153
 154 $(OBJTREE)/MLO.byteswap: $(obj)/u-boot-spl.bin
 155         $(OBJTREE)/tools/mkimage -T omapimage -n byteswap \
 156                 -a $(CONFIG_SPL_TEXT_BASE) -d $< $@
 157
 158 $(objtree)/SPL : $(obj)/u-boot-spl.bin depend
 159                 $(MAKE) $(build)=spl/arch/arm/imx-common $@
 160
 161 ALL-y   += $(obj)/$(SPL_BIN).bin
 162
 163 ifdef CONFIG_SAMSUNG
 164 ALL-y   += $(obj)/$(BOARD)-spl.bin
 165 endif
 166
 167 all:    $(ALL-y)
 168
 169 ifdef CONFIG_SAMSUNG
 170 ifdef CONFIG_VAR_SIZE_SPL
 171 VAR_SIZE_PARAM = --vs
 172 else
 173 VAR_SIZE_PARAM =
 174 endif
 175 $(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin
 176         $(if $(wildcard $(OBJTREE)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\
 177         $(OBJTREE)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\
 178         $(OBJTREE)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@
 179 endif
 180
 181 $(obj)/$(SPL_BIN).bin:  $(obj)/$(SPL_BIN)
 182         $(OBJCOPY) $(OBJCFLAGS) $(SPL_OBJCFLAGS) -O binary $< $@
 183
 184 LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
 185 ifneq ($(CONFIG_SPL_TEXT_BASE),)
 186 LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE)
 187 endif
 188
 189 GEN_UBOOT = \
 190         cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) $(__START) \
 191                 --start-group $(__LIBS) --end-group $(PLATFORM_LIBS) \
 192                 -Map $(SPL_BIN).map -o $(SPL_BIN)
 193
 194 $(obj)/$(SPL_BIN):      depend $(START) $(LIBS) $(obj)/u-boot-spl.lds
 195         $(GEN_UBOOT)
 196
 197 $(START):
 198         @:
 199
 200 $(LIBS):        depend
 201         $(MAKE) $(build)=$(patsubst %/,%,$(dir $@))
 202
 203 $(obj)/u-boot-spl.lds: $(LDSCRIPT) depend
 204         $(CPP) $(CPPFLAGS) $(LDPPFLAGS) -I$(obj). -ansi -D__ASSEMBLY__ -P - < $< > $@
 205
 206 depend: $(obj)/.depend
 207 .PHONY: depend
 208
 209 # defines $(obj).depend target
 210 include $(SRCTREE)/rules.mk