upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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316 lines
9.2 KiB
316 lines
9.2 KiB
#
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# (C) Copyright 2000-2011
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# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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#
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# (C) Copyright 2011
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# Daniel Schwierzeck, daniel.schwierzeck@googlemail.com.
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#
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# (C) Copyright 2011
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# Texas Instruments Incorporated - http://www.ti.com/
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# Aneesh V <aneesh@ti.com>
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#
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# SPDX-License-Identifier: GPL-2.0+
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#
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# Based on top-level Makefile.
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#
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src := $(obj)
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# Create output directory if not already present
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_dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj))
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include $(srctree)/scripts/Kbuild.include
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-include include/config/auto.conf
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-include $(obj)/include/autoconf.mk
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KBUILD_CPPFLAGS += -DCONFIG_SPL_BUILD
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ifeq ($(CONFIG_TPL_BUILD),y)
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KBUILD_CPPFLAGS += -DCONFIG_TPL_BUILD
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endif
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ifeq ($(CONFIG_TPL_BUILD),y)
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SPL_BIN := u-boot-tpl
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else
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SPL_BIN := u-boot-spl
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endif
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include $(srctree)/config.mk
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include $(srctree)/arch/$(ARCH)/Makefile
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# Enable garbage collection of un-used sections for SPL
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KBUILD_CFLAGS += -ffunction-sections -fdata-sections
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LDFLAGS_FINAL += --gc-sections
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# FIX ME
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cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
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$(NOSTDINC_FLAGS)
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c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
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HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
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libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
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libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
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libs-$(CONFIG_SPL_FRAMEWORK) += common/spl/
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libs-y += common/init/
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libs-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/ cmd/
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libs-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/
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libs-y += drivers/
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libs-y += dts/
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libs-y += fs/
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libs-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/
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libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/
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libs-$(CONFIG_SPL_NET_SUPPORT) += net/
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head-y := $(addprefix $(obj)/,$(head-y))
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libs-y := $(addprefix $(obj)/,$(libs-y))
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u-boot-spl-dirs := $(patsubst %/,%,$(filter %/, $(libs-y)))
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libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
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# Add GCC lib
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ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
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PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
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PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
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endif
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u-boot-spl-init := $(head-y)
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u-boot-spl-main := $(libs-y)
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ifdef CONFIG_SPL_OF_PLATDATA
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u-boot-spl-platdata := $(obj)/dts/dt-platdata.o
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endif
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# Linker Script
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ifdef CONFIG_SPL_LDSCRIPT
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# need to strip off double quotes
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LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%))
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endif
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ifeq ($(wildcard $(LDSCRIPT)),)
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LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-spl.lds
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endif
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ifeq ($(wildcard $(LDSCRIPT)),)
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LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-spl.lds
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endif
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ifeq ($(wildcard $(LDSCRIPT)),)
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LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot-spl.lds
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endif
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ifeq ($(wildcard $(LDSCRIPT)),)
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$(error could not find linker script)
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endif
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# Special flags for CPP when processing the linker script.
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# Pass the version down so we can handle backwards compatibility
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# on the fly.
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LDPPFLAGS += \
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-include $(srctree)/include/u-boot/u-boot.lds.h \
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-include $(objtree)/include/config.h \
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-DCPUDIR=$(CPUDIR) \
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$(shell $(LD) --version | \
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sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
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quiet_cmd_mkimage = MKIMAGE $@
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cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
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$(if $(KBUILD_VERBOSE:1=), >/dev/null)
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MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE)
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MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE)
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MLO MLO.byteswap: $(obj)/u-boot-spl.bin FORCE
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$(call if_changed,mkimage)
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ifeq ($(CONFIG_SYS_SOC),"at91")
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MKIMAGEFLAGS_boot.bin = -T atmelimage
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ifeq ($(CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER),y)
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MKIMAGEFLAGS_boot.bin += -n $(shell $(obj)/../tools/atmel_pmecc_params)
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boot.bin: $(obj)/../tools/atmel_pmecc_params
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endif
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boot.bin: $(obj)/u-boot-spl.bin FORCE
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$(call if_changed,mkimage)
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else
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ifdef CONFIG_ARCH_ZYNQ
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MKIMAGEFLAGS_boot.bin = -T zynqimage
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endif
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ifdef CONFIG_ARCH_ZYNQMP
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MKIMAGEFLAGS_boot.bin = -T zynqmpimage
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endif
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spl/boot.bin: $(obj)/u-boot-spl.bin FORCE
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$(call if_changed,mkimage)
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endif
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ALL-y += $(obj)/$(SPL_BIN).bin $(obj)/$(SPL_BIN).cfg
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ifdef CONFIG_SAMSUNG
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ALL-y += $(obj)/$(BOARD)-spl.bin
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endif
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ifdef CONFIG_ARCH_SOCFPGA
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ALL-y += $(obj)/$(SPL_BIN).sfp
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endif
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ifdef CONFIG_SUNXI
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ALL-y += $(obj)/sunxi-spl.bin
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endif
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ifeq ($(CONFIG_SYS_SOC),"at91")
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ALL-y += boot.bin
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endif
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ALL-$(CONFIG_ARCH_ZYNQ) += $(obj)/boot.bin
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ALL-$(CONFIG_ARCH_ZYNQMP) += $(obj)/boot.bin
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all: $(ALL-y)
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quiet_cmd_cat = CAT $@
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cmd_cat = cat $(filter-out $(PHONY), $^) > $@
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quiet_cmd_copy = COPY $@
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cmd_copy = cp $< $@
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ifeq ($(CONFIG_SPL_OF_CONTROL)$(CONFIG_OF_SEPARATE)$(CONFIG_SPL_OF_PLATDATA),yy)
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$(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN)-nodtb.bin $(obj)/$(SPL_BIN)-pad.bin \
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$(obj)/$(SPL_BIN).dtb FORCE
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$(call if_changed,cat)
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$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-dtb.bin FORCE
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$(call if_changed,copy)
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else
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$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-nodtb.bin FORCE
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$(call if_changed,copy)
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endif
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# Create a file that pads from the end of u-boot-spl-nodtb.bin to bss_end
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$(obj)/$(SPL_BIN)-pad.bin: $(obj)/$(SPL_BIN)
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@bss_size_str=$(shell $(NM) $< | awk 'BEGIN {size = 0} /__bss_size/ {size = $$1} END {print "ibase=16; " toupper(size)}' | bc); \
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dd if=/dev/zero of=$@ bs=1 count=$${bss_size_str} 2>/dev/null;
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# Pass the original device tree file through fdtgrep twice. The first pass
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# removes any unwanted nodes (i.e. those which don't have the
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# 'u-boot,dm-pre-reloc' property and thus are not needed by SPL. The second
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# pass removes various unused properties from the remaining nodes.
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# The output is typically a much smaller device tree file.
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quiet_cmd_fdtgrep = FDTGREP $@
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cmd_fdtgrep = $(objtree)/tools/fdtgrep -b u-boot,dm-pre-reloc -RT $< \
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-n /chosen -O dtb | \
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$(objtree)/tools/fdtgrep -r -O dtb - -o $@ \
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$(addprefix -P ,$(subst $\",,$(CONFIG_OF_SPL_REMOVE_PROPS)))
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$(obj)/$(SPL_BIN).dtb: dts/dt.dtb $(objtree)/tools/fdtgrep FORCE
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$(call if_changed,fdtgrep)
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quiet_cmd_cpp_cfg = CFG $@
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cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
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-DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
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$(obj)/$(SPL_BIN).cfg: include/config.h FORCE
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$(call if_changed,cpp_cfg)
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pythonpath = PYTHONPATH=tools
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quiet_cmd_dtocc = DTOC C $@
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cmd_dtocc = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ platdata
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quiet_cmd_dtoch = DTOC H $@
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cmd_dtoch = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ struct
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quiet_cmd_plat = PLAT $@
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cmd_plat = $(CC) $(c_flags) -c $< -o $@
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$(obj)/dts/dt-platdata.o: $(obj)/dts/dt-platdata.c include/generated/dt-structs.h
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$(call if_changed,plat)
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PHONY += dts_dir
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dts_dir:
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$(shell [ -d $(obj)/dts ] || mkdir -p $(obj)/dts)
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include/generated/dt-structs.h: $(obj)/$(SPL_BIN).dtb dts_dir dtoc
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$(call if_changed,dtoch)
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$(obj)/dts/dt-platdata.c: $(obj)/$(SPL_BIN).dtb dts_dir dtoc
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$(call if_changed,dtocc)
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dtoc: #$(objtree)/tools/_libfdt.so
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ifdef CONFIG_SAMSUNG
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ifdef CONFIG_VAR_SIZE_SPL
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VAR_SIZE_PARAM = --vs
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else
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VAR_SIZE_PARAM =
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endif
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$(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin
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$(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\
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$(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\
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$(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@
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endif
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quiet_cmd_objcopy = OBJCOPY $@
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cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
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OBJCOPYFLAGS_$(SPL_BIN)-nodtb.bin = $(SPL_OBJCFLAGS) -O binary
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$(obj)/$(SPL_BIN)-nodtb.bin: $(obj)/$(SPL_BIN) FORCE
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$(call if_changed,objcopy)
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LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
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ifneq ($(CONFIG_SPL_TEXT_BASE),)
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LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE)
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endif
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MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage
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$(obj)/$(SPL_BIN).sfp: $(obj)/$(SPL_BIN).bin FORCE
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$(call if_changed,mkimage)
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quiet_cmd_mksunxiboot = MKSUNXI $@
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cmd_mksunxiboot = $(objtree)/tools/mksunxiboot $< $@
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$(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin FORCE
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$(call if_changed,mksunxiboot)
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# Rule to link u-boot-spl
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# May be overridden by arch/$(ARCH)/config.mk
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quiet_cmd_u-boot-spl ?= LD $@
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cmd_u-boot-spl ?= (cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \
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$(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \
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$(patsubst $(obj)/%,%,$(u-boot-spl-main)) \
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$(patsubst $(obj)/%,%,$(u-boot-spl-platdata)) \
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--end-group \
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$(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN))
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$(obj)/$(SPL_BIN): $(u-boot-spl-platdata) $(u-boot-spl-init) \
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$(u-boot-spl-main) $(obj)/u-boot-spl.lds FORCE
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$(call if_changed,u-boot-spl)
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$(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ;
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PHONY += $(u-boot-spl-dirs)
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$(u-boot-spl-dirs): $(u-boot-spl-platdata)
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$(Q)$(MAKE) $(build)=$@
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quiet_cmd_cpp_lds = LDS $@
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cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
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-D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
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$(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE
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$(call if_changed_dep,cpp_lds)
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# read all saved command lines
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targets := $(wildcard $(sort $(targets)))
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cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
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ifneq ($(cmd_files),)
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$(cmd_files): ; # Do not try to update included dependency files
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include $(cmd_files)
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endif
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PHONY += FORCE
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FORCE:
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# Declare the contents of the .PHONY variable as phony. We keep that
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# information in a variable so we can use it in if_changed and friends.
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.PHONY: $(PHONY)
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