Fork of the vendor (Boundary Devices) u-boot for Reform 2, with minor tweaks. The goal is to migrate to mainstream u-boot or barebox ASAP. The main impediment so far is the 4GB RAM config.
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  1. # SPDX-License-Identifier: GPL-2.0
  2. # Backward compatibility
  3. asflags-y += $(EXTRA_AFLAGS)
  4. ccflags-y += $(EXTRA_CFLAGS)
  5. cppflags-y += $(EXTRA_CPPFLAGS)
  6. ldflags-y += $(EXTRA_LDFLAGS)
  7. #
  8. # flags that take effect in sub directories
  9. export KBUILD_SUBDIR_ASFLAGS := $(KBUILD_SUBDIR_ASFLAGS) $(subdir-asflags-y)
  10. export KBUILD_SUBDIR_CCFLAGS := $(KBUILD_SUBDIR_CCFLAGS) $(subdir-ccflags-y)
  11. # Figure out what we need to build from the various variables
  12. # ===========================================================================
  13. # When an object is listed to be built compiled-in and modular,
  14. # only build the compiled-in version
  15. obj-m := $(filter-out $(obj-y),$(obj-m))
  16. # Libraries are always collected in one lib file.
  17. # Filter out objects already built-in
  18. lib-y := $(filter-out $(obj-y), $(sort $(lib-y) $(lib-m)))
  19. # Handle objects in subdirs
  20. # ---------------------------------------------------------------------------
  21. # o if we encounter foo/ in $(obj-y), replace it by foo/built-in.o
  22. # and add the directory to the list of dirs to descend into: $(subdir-y)
  23. # o if we encounter foo/ in $(obj-m), remove it from $(obj-m)
  24. # and add the directory to the list of dirs to descend into: $(subdir-m)
  25. # Determine modorder.
  26. # Unfortunately, we don't have information about ordering between -y
  27. # and -m subdirs. Just put -y's first.
  28. modorder := $(patsubst %/,%/modules.order, $(filter %/, $(obj-y)) $(obj-m:.o=.ko))
  29. __subdir-y := $(patsubst %/,%,$(filter %/, $(obj-y)))
  30. subdir-y += $(__subdir-y)
  31. __subdir-m := $(patsubst %/,%,$(filter %/, $(obj-m)))
  32. subdir-m += $(__subdir-m)
  33. obj-y := $(patsubst %/, %/built-in.o, $(obj-y))
  34. obj-m := $(filter-out %/, $(obj-m))
  35. # Subdirectories we need to descend into
  36. subdir-ym := $(sort $(subdir-y) $(subdir-m))
  37. # if $(foo-objs) exists, foo.o is a composite object
  38. multi-used-y := $(sort $(foreach m,$(obj-y), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))), $(m))))
  39. multi-used-m := $(sort $(foreach m,$(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))), $(m))))
  40. multi-used := $(multi-used-y) $(multi-used-m)
  41. single-used-m := $(sort $(filter-out $(multi-used-m),$(obj-m)))
  42. # Build list of the parts of our composite objects, our composite
  43. # objects depend on those (obviously)
  44. multi-objs-y := $(foreach m, $(multi-used-y), $($(m:.o=-objs)) $($(m:.o=-y)))
  45. multi-objs-m := $(foreach m, $(multi-used-m), $($(m:.o=-objs)) $($(m:.o=-y)))
  46. multi-objs := $(multi-objs-y) $(multi-objs-m)
  47. # $(subdir-obj-y) is the list of objects in $(obj-y) which uses dir/ to
  48. # tell kbuild to descend
  49. subdir-obj-y := $(filter %/built-in.o, $(obj-y))
  50. # $(obj-dirs) is a list of directories that contain object files
  51. obj-dirs := $(dir $(multi-objs) $(obj-y))
  52. # Replace multi-part objects by their individual parts, look at local dir only
  53. real-objs-y := $(foreach m, $(filter-out $(subdir-obj-y), $(obj-y)), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))),$($(m:.o=-objs)) $($(m:.o=-y)),$(m))) $(extra-y)
  54. real-objs-m := $(foreach m, $(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))),$($(m:.o=-objs)) $($(m:.o=-y)),$(m)))
  55. # Add subdir path
  56. extra-y := $(addprefix $(obj)/,$(extra-y))
  57. always := $(addprefix $(obj)/,$(always))
  58. targets := $(addprefix $(obj)/,$(targets))
  59. modorder := $(addprefix $(obj)/,$(modorder))
  60. obj-y := $(addprefix $(obj)/,$(obj-y))
  61. obj-m := $(addprefix $(obj)/,$(obj-m))
  62. lib-y := $(addprefix $(obj)/,$(lib-y))
  63. subdir-obj-y := $(addprefix $(obj)/,$(subdir-obj-y))
  64. real-objs-y := $(addprefix $(obj)/,$(real-objs-y))
  65. real-objs-m := $(addprefix $(obj)/,$(real-objs-m))
  66. single-used-m := $(addprefix $(obj)/,$(single-used-m))
  67. multi-used-y := $(addprefix $(obj)/,$(multi-used-y))
  68. multi-used-m := $(addprefix $(obj)/,$(multi-used-m))
  69. multi-objs-y := $(addprefix $(obj)/,$(multi-objs-y))
  70. multi-objs-m := $(addprefix $(obj)/,$(multi-objs-m))
  71. subdir-ym := $(addprefix $(obj)/,$(subdir-ym))
  72. obj-dirs := $(addprefix $(obj)/,$(obj-dirs))
  73. # These flags are needed for modversions and compiling, so we define them here
  74. # already
  75. # $(modname_flags) #defines KBUILD_MODNAME as the name of the module it will
  76. # end up in (or would, if it gets compiled in)
  77. # Note: Files that end up in two or more modules are compiled without the
  78. # KBUILD_MODNAME definition. The reason is that any made-up name would
  79. # differ in different configs.
  80. name-fix = $(subst $(comma),_,$(subst -,_,$1))
  81. basename_flags = -D"KBUILD_BASENAME=KBUILD_STR($(call name-fix,$(basetarget)))"
  82. modname_flags = $(if $(filter 1,$(words $(modname))),\
  83. -D"KBUILD_MODNAME=KBUILD_STR($(call name-fix,$(modname)))")
  84. orig_c_flags = $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(KBUILD_SUBDIR_CCFLAGS) \
  85. $(ccflags-y) $(CFLAGS_$(basetarget).o)
  86. _c_flags = $(filter-out $(CFLAGS_REMOVE_$(basetarget).o), $(orig_c_flags))
  87. orig_a_flags = $(KBUILD_CPPFLAGS) $(KBUILD_AFLAGS) $(KBUILD_SUBDIR_ASFLAGS) \
  88. $(asflags-y) $(AFLAGS_$(basetarget).o)
  89. _a_flags = $(filter-out $(AFLAGS_REMOVE_$(basetarget).o), $(orig_a_flags))
  90. _cpp_flags = $(KBUILD_CPPFLAGS) $(cppflags-y) $(CPPFLAGS_$(@F))
  91. #
  92. # Enable gcov profiling flags for a file, directory or for all files depending
  93. # on variables GCOV_PROFILE_obj.o, GCOV_PROFILE and CONFIG_GCOV_PROFILE_ALL
  94. # (in this order)
  95. #
  96. ifeq ($(CONFIG_GCOV_KERNEL),y)
  97. _c_flags += $(if $(patsubst n%,, \
  98. $(GCOV_PROFILE_$(basetarget).o)$(GCOV_PROFILE)$(CONFIG_GCOV_PROFILE_ALL)), \
  99. $(CFLAGS_GCOV))
  100. endif
  101. #
  102. # Enable address sanitizer flags for kernel except some files or directories
  103. # we don't want to check (depends on variables KASAN_SANITIZE_obj.o, KASAN_SANITIZE)
  104. #
  105. ifeq ($(CONFIG_KASAN),y)
  106. _c_flags += $(if $(patsubst n%,, \
  107. $(KASAN_SANITIZE_$(basetarget).o)$(KASAN_SANITIZE)y), \
  108. $(CFLAGS_KASAN))
  109. endif
  110. # If building the kernel in a separate objtree expand all occurrences
  111. # of -Idir to -I$(srctree)/dir except for absolute paths (starting with '/').
  112. ifeq ($(KBUILD_SRC),)
  113. __c_flags = $(_c_flags)
  114. __a_flags = $(_a_flags)
  115. __cpp_flags = $(_cpp_flags)
  116. else
  117. # -I$(obj) locates generated .h files
  118. # $(call addtree,-I$(obj)) locates .h files in srctree, from generated .c files
  119. # and locates generated .h files
  120. # FIXME: Replace both with specific CFLAGS* statements in the makefiles
  121. __c_flags = $(call addtree,-I$(obj)) $(call flags,_c_flags)
  122. __a_flags = $(call flags,_a_flags)
  123. __cpp_flags = $(call flags,_cpp_flags)
  124. endif
  125. # Modified for U-Boot: LINUXINCLUDE -> UBOOTINCLUDE
  126. c_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE) \
  127. $(__c_flags) $(modkern_cflags) \
  128. -D"KBUILD_STR(s)=\#s" $(basename_flags) $(modname_flags)
  129. a_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE) \
  130. $(__a_flags) $(modkern_aflags)
  131. cpp_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE) \
  132. $(__cpp_flags)
  133. ld_flags = $(LDFLAGS) $(ldflags-y)
  134. # Try these files in order to find the U-Boot-specific .dtsi include file
  135. u_boot_dtsi_options = $(strip $(wildcard $(dir $<)$(basename $(notdir $<))-u-boot.dtsi) \
  136. $(wildcard $(dir $<)$(subst $\",,$(CONFIG_SYS_SOC))-u-boot.dtsi) \
  137. $(wildcard $(dir $<)$(subst $\",,$(CONFIG_SYS_CPU))-u-boot.dtsi) \
  138. $(wildcard $(dir $<)$(subst $\",,$(CONFIG_SYS_VENDOR))-u-boot.dtsi) \
  139. $(wildcard $(dir $<)u-boot.dtsi))
  140. u_boot_dtsi_options_raw = $(warning Automatic .dtsi inclusion: options: \
  141. $(dir $<)$(basename $(notdir $<))-u-boot.dtsi \
  142. $(dir $<)$(subst $\",,$(CONFIG_SYS_SOC))-u-boot.dtsi \
  143. $(dir $<)$(subst $\",,$(CONFIG_SYS_CPU))-u-boot.dtsi \
  144. $(dir $<)$(subst $\",,$(CONFIG_SYS_VENDOR))-u-boot.dtsi \
  145. $(dir $<)u-boot.dtsi ... \
  146. found: $(if $(u_boot_dtsi_options),"$(u_boot_dtsi_options)",nothing!))
  147. # Uncomment for debugging
  148. # This shows all the files that were considered and the one that we chose.
  149. # u_boot_dtsi_options_debug = $(u_boot_dtsi_options_raw)
  150. # We use the first match
  151. u_boot_dtsi = $(strip $(u_boot_dtsi_options_debug) \
  152. $(notdir $(firstword $(u_boot_dtsi_options))))
  153. # Modified for U-Boot
  154. dtc_cpp_flags = -Wp,-MD,$(depfile).pre.tmp -nostdinc \
  155. -I$(srctree)/arch/$(ARCH)/dts \
  156. -I$(srctree)/arch/$(ARCH)/dts/include \
  157. -Iinclude \
  158. -I$(srctree)/include \
  159. -I$(srctree)/arch/$(ARCH)/include \
  160. -include $(srctree)/include/linux/kconfig.h \
  161. -D__ASSEMBLY__ \
  162. -undef -D__DTS__
  163. # Finds the multi-part object the current object will be linked into
  164. modname-multi = $(sort $(foreach m,$(multi-used),\
  165. $(if $(filter $(subst $(obj)/,,$*.o), $($(m:.o=-objs)) $($(m:.o=-y))),$(m:.o=))))
  166. # Useful for describing the dependency of composite objects
  167. # Usage:
  168. # $(call multi_depend, multi_used_targets, suffix_to_remove, suffix_to_add)
  169. define multi_depend
  170. $(foreach m, $(notdir $1), \
  171. $(eval $(obj)/$m: \
  172. $(addprefix $(obj)/, $(foreach s, $3, $($(m:%$(strip $2)=%$(s)))))))
  173. endef
  174. # LEX
  175. # ---------------------------------------------------------------------------
  176. quiet_cmd_flex = LEX $@
  177. cmd_flex = $(LEX) -o$@ -L $<
  178. .PRECIOUS: $(obj)/%.lex.c
  179. $(obj)/%.lex.c: $(src)/%.l FORCE
  180. $(call if_changed,flex)
  181. # YACC
  182. # ---------------------------------------------------------------------------
  183. quiet_cmd_bison = YACC $@
  184. cmd_bison = $(YACC) -o$@ -t -l $<
  185. .PRECIOUS: $(obj)/%.tab.c
  186. $(obj)/%.tab.c: $(src)/%.y FORCE
  187. $(call if_changed,bison)
  188. quiet_cmd_bison_h = YACC $@
  189. cmd_bison_h = $(YACC) -o/dev/null --defines=$@ -t -l $<
  190. .PRECIOUS: $(obj)/%.tab.h
  191. $(obj)/%.tab.h: $(src)/%.y FORCE
  192. $(call if_changed,bison_h)
  193. # Shipped files
  194. # ===========================================================================
  195. quiet_cmd_shipped = SHIPPED $@
  196. cmd_shipped = cat $< > $@
  197. $(obj)/%: $(src)/%_shipped
  198. $(call cmd,shipped)
  199. # Commands useful for building a boot image
  200. # ===========================================================================
  201. #
  202. # Use as following:
  203. #
  204. # target: source(s) FORCE
  205. # $(if_changed,ld/objcopy/gzip)
  206. #
  207. # and add target to extra-y so that we know we have to
  208. # read in the saved command line
  209. # Linking
  210. # ---------------------------------------------------------------------------
  211. quiet_cmd_ld = LD $@
  212. cmd_ld = $(LD) $(LDFLAGS) $(ldflags-y) $(LDFLAGS_$(@F)) \
  213. $(filter-out FORCE,$^) -o $@
  214. # Objcopy
  215. # ---------------------------------------------------------------------------
  216. quiet_cmd_objcopy = OBJCOPY $@
  217. cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
  218. # Gzip
  219. # ---------------------------------------------------------------------------
  220. quiet_cmd_gzip = GZIP $@
  221. cmd_gzip = (cat $(filter-out FORCE,$^) | gzip -n -f -9 > $@) || \
  222. (rm -f $@ ; false)
  223. # DTC
  224. # ---------------------------------------------------------------------------
  225. # Generate an assembly file to wrap the output of the device tree compiler
  226. quiet_cmd_dt_S_dtb= DTB $@
  227. # Modified for U-Boot
  228. cmd_dt_S_dtb= \
  229. ( \
  230. echo '.section .dtb.init.rodata,"a"'; \
  231. echo '.balign 16'; \
  232. echo '.global __dtb_$(subst -,_,$(*F))_begin'; \
  233. echo '__dtb_$(subst -,_,$(*F))_begin:'; \
  234. echo '.incbin "$<" '; \
  235. echo '__dtb_$(subst -,_,$(*F))_end:'; \
  236. echo '.global __dtb_$(subst -,_,$(*F))_end'; \
  237. echo '.balign 16'; \
  238. ) > $@
  239. $(obj)/%.dtb.S: $(obj)/%.dtb
  240. $(call cmd,dt_S_dtb)
  241. quiet_cmd_dtc = DTC $@
  242. # Modified for U-Boot
  243. # Bring in any U-Boot-specific include at the end of the file
  244. cmd_dtc = mkdir -p $(dir ${dtc-tmp}) ; \
  245. (cat $<; $(if $(u_boot_dtsi),echo '$(pound)include "$(u_boot_dtsi)"')) > $(pre-tmp); \
  246. $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $(pre-tmp) ; \
  247. $(DTC) -O dtb -o $@ -b 0 \
  248. -i $(dir $<) $(DTC_FLAGS) \
  249. -d $(depfile).dtc.tmp $(dtc-tmp) ; \
  250. cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile)
  251. $(obj)/%.dtb: $(src)/%.dts FORCE
  252. $(call if_changed_dep,dtc)
  253. pre-tmp = $(subst $(comma),_,$(dot-target).pre.tmp)
  254. dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp)
  255. # DTCO
  256. # ---------------------------------------------------------------------------
  257. quiet_cmd_dtco = DTCO $@
  258. # Rule for objects only; does not put specific u-boot include at the end
  259. # No generation of assembly file either
  260. # Modified for U-Boot
  261. cmd_dtco = mkdir -p $(dir ${dtc-tmp}) ; \
  262. $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) - ; \
  263. $(DTC) -@ -O dtb -o $@ -b 0 \
  264. -i $(dir $<) $(DTC_FLAGS) \
  265. -d $(depfile).dtc.tmp $(dtc-tmp) ; \
  266. cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile)
  267. $(obj)/%.dtbo: $(src)/%.dts FORCE
  268. $(call if_changed_dep,dtco)
  269. # Fonts
  270. # ---------------------------------------------------------------------------
  271. # Generate an assembly file to wrap the font data
  272. quiet_cmd_S_ttf= TTF $@
  273. # Modified for U-Boot
  274. cmd_S_ttf= \
  275. ( \
  276. echo '.section .rodata.ttf.init,"a"'; \
  277. echo '.balign 16'; \
  278. echo '.global __ttf_$(*F)_begin'; \
  279. echo '__ttf_$(*F)_begin:'; \
  280. echo '.incbin "$<" '; \
  281. echo '__ttf_$(*F)_end:'; \
  282. echo '.global __ttf_$(*F)_end'; \
  283. echo '.balign 16'; \
  284. ) > $@
  285. $(obj)/%.S: $(src)/%.ttf
  286. $(call cmd,S_ttf)
  287. # EFI applications
  288. # A Makefile target *.efi is built as EFI application.
  289. # A Makefile target *_efi.S wraps *.efi as built-in EFI application.
  290. # ---------------------------------------------------------------------------
  291. # Generate an assembly file to wrap the EFI app
  292. cmd_S_efi= \
  293. ( \
  294. echo '.section .rodata.$*.init,"a"'; \
  295. echo '.balign 16'; \
  296. echo '.global __efi_$*_begin'; \
  297. echo '__efi_$*_begin:'; \
  298. echo '.incbin "$<" '; \
  299. echo '__efi_$*_end:'; \
  300. echo '.global __efi_$*_end'; \
  301. echo '.balign 16'; \
  302. ) > $@
  303. $(obj)/%_efi.S: $(obj)/%.efi
  304. $(call cmd,S_efi)
  305. quiet_cmd_efi_objcopy = OBJCOPY $@
  306. cmd_efi_objcopy = $(OBJCOPY) -j .header -j .text -j .sdata -j .data -j \
  307. .dynamic -j .dynsym -j .rel* -j .rela* -j .reloc \
  308. $(if $(EFI_TARGET),$(EFI_TARGET),-O binary) $^ $@
  309. $(obj)/%.efi: $(obj)/%_efi.so
  310. $(call cmd,efi_objcopy)
  311. quiet_cmd_efi_ld = LD $@
  312. cmd_efi_ld = $(LD) -nostdlib -znocombreloc -T $(EFI_LDS_PATH) -shared \
  313. -Bsymbolic $^ -o $@
  314. EFI_LDS_PATH = $(srctree)/arch/$(ARCH)/lib/$(EFI_LDS)
  315. $(obj)/efi_crt0.o: $(srctree)/arch/$(ARCH)/lib/$(EFI_CRT0:.o=.S)
  316. $(call if_changed_dep,as_o_S)
  317. $(obj)/efi_reloc.o: $(srctree)/arch/$(ARCH)/lib/$(EFI_RELOC:.o=.c) $(recordmcount_source) FORCE
  318. $(call cmd,force_checksrc)
  319. $(call if_changed_rule,cc_o_c)
  320. $(obj)/%_efi.so: $(obj)/%.o $(obj)/efi_crt0.o $(obj)/efi_reloc.o
  321. $(call cmd,efi_ld)
  322. # ACPI
  323. # ---------------------------------------------------------------------------
  324. quiet_cmd_acpi_c_asl= ASL $<
  325. cmd_acpi_c_asl= \
  326. $(CPP) -x assembler-with-cpp -D__ASSEMBLY__ -P $(UBOOTINCLUDE) -o $<.tmp $<; \
  327. iasl -p $< -tc $<.tmp $(if $(KBUILD_VERBOSE:1=), >/dev/null) && \
  328. mv $(patsubst %.asl,%.hex,$<) $@
  329. $(obj)/dsdt.c: $(src)/dsdt.asl
  330. $(call cmd,acpi_c_asl)
  331. $(Q)sed -i -e "s,dsdt_aml_code,AmlCode," $@
  332. # Bzip2
  333. # ---------------------------------------------------------------------------
  334. # Bzip2 and LZMA do not include size in file... so we have to fake that;
  335. # append the size as a 32-bit littleendian number as gzip does.
  336. size_append = printf $(shell \
  337. dec_size=0; \
  338. for F in $1; do \
  339. fsize=$$(stat -c "%s" $$F); \
  340. dec_size=$$(expr $$dec_size + $$fsize); \
  341. done; \
  342. printf "%08x\n" $$dec_size | \
  343. sed 's/\(..\)/\1 /g' | { \
  344. read ch0 ch1 ch2 ch3; \
  345. for ch in $$ch3 $$ch2 $$ch1 $$ch0; do \
  346. printf '%s%03o' '\\' $$((0x$$ch)); \
  347. done; \
  348. } \
  349. )
  350. quiet_cmd_bzip2 = BZIP2 $@
  351. cmd_bzip2 = (cat $(filter-out FORCE,$^) | \
  352. bzip2 -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
  353. (rm -f $@ ; false)
  354. # Lzma
  355. # ---------------------------------------------------------------------------
  356. quiet_cmd_lzma = LZMA $@
  357. cmd_lzma = (cat $(filter-out FORCE,$^) | \
  358. lzma -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
  359. (rm -f $@ ; false)
  360. quiet_cmd_lzo = LZO $@
  361. cmd_lzo = (cat $(filter-out FORCE,$^) | \
  362. lzop -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
  363. (rm -f $@ ; false)
  364. quiet_cmd_lz4 = LZ4 $@
  365. cmd_lz4 = (cat $(filter-out FORCE,$^) | \
  366. lz4c -l -c1 stdin stdout && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
  367. (rm -f $@ ; false)
  368. # U-Boot mkimage
  369. # ---------------------------------------------------------------------------
  370. MKIMAGE := $(srctree)/scripts/mkuboot.sh
  371. # SRCARCH just happens to match slightly more than ARCH (on sparc), so reduces
  372. # the number of overrides in arch makefiles
  373. UIMAGE_ARCH ?= $(SRCARCH)
  374. UIMAGE_COMPRESSION ?= $(if $(2),$(2),none)
  375. UIMAGE_OPTS-y ?=
  376. UIMAGE_TYPE ?= kernel
  377. UIMAGE_LOADADDR ?= arch_must_set_this
  378. UIMAGE_ENTRYADDR ?= $(UIMAGE_LOADADDR)
  379. UIMAGE_NAME ?= 'Linux-$(KERNELRELEASE)'
  380. UIMAGE_IN ?= $<
  381. UIMAGE_OUT ?= $@
  382. quiet_cmd_uimage = UIMAGE $(UIMAGE_OUT)
  383. cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A $(UIMAGE_ARCH) -O linux \
  384. -C $(UIMAGE_COMPRESSION) $(UIMAGE_OPTS-y) \
  385. -T $(UIMAGE_TYPE) \
  386. -a $(UIMAGE_LOADADDR) -e $(UIMAGE_ENTRYADDR) \
  387. -n $(UIMAGE_NAME) -d $(UIMAGE_IN) $(UIMAGE_OUT)
  388. # XZ
  389. # ---------------------------------------------------------------------------
  390. # Use xzkern to compress the kernel image and xzmisc to compress other things.
  391. #
  392. # xzkern uses a big LZMA2 dictionary since it doesn't increase memory usage
  393. # of the kernel decompressor. A BCJ filter is used if it is available for
  394. # the target architecture. xzkern also appends uncompressed size of the data
  395. # using size_append. The .xz format has the size information available at
  396. # the end of the file too, but it's in more complex format and it's good to
  397. # avoid changing the part of the boot code that reads the uncompressed size.
  398. # Note that the bytes added by size_append will make the xz tool think that
  399. # the file is corrupt. This is expected.
  400. #
  401. # xzmisc doesn't use size_append, so it can be used to create normal .xz
  402. # files. xzmisc uses smaller LZMA2 dictionary than xzkern, because a very
  403. # big dictionary would increase the memory usage too much in the multi-call
  404. # decompression mode. A BCJ filter isn't used either.
  405. quiet_cmd_xzkern = XZKERN $@
  406. cmd_xzkern = (cat $(filter-out FORCE,$^) | \
  407. sh $(srctree)/scripts/xz_wrap.sh && \
  408. $(call size_append, $(filter-out FORCE,$^))) > $@ || \
  409. (rm -f $@ ; false)
  410. quiet_cmd_xzmisc = XZMISC $@
  411. cmd_xzmisc = (cat $(filter-out FORCE,$^) | \
  412. xz --check=crc32 --lzma2=dict=1MiB) > $@ || \
  413. (rm -f $@ ; false)
  414. # Additional commands for U-Boot
  415. #
  416. # mkimage
  417. # ---------------------------------------------------------------------------
  418. MKIMAGEOUTPUT ?= /dev/null
  419. quiet_cmd_mkimage = MKIMAGE $@
  420. cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
  421. >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
  422. # fdtgrep
  423. # ---------------------------------------------------------------------------
  424. # Pass the original device tree file through fdtgrep twice. The first pass
  425. # removes any unwanted nodes (i.e. those which don't have the
  426. # 'u-boot,dm-pre-reloc' property and thus are not needed by SPL. The second
  427. # pass removes various unused properties from the remaining nodes.
  428. # The output is typically a much smaller device tree file.
  429. ifeq ($(CONFIG_TPL_BUILD),y)
  430. fdtgrep_props := -b u-boot,dm-pre-reloc -b u-boot,dm-tpl
  431. else
  432. fdtgrep_props := -b u-boot,dm-pre-reloc -b u-boot,dm-spl
  433. endif
  434. quiet_cmd_fdtgrep = FDTGREP $@
  435. cmd_fdtgrep = $(objtree)/tools/fdtgrep $(fdtgrep_props) -RT $< \
  436. -n /chosen -n /config -O dtb | \
  437. $(objtree)/tools/fdtgrep -r -O dtb - -o $@ \
  438. $(addprefix -P ,$(subst $\",,$(CONFIG_OF_SPL_REMOVE_PROPS)))