build: kill one indirection

No need to first define X86_32 and then replace every
single use of it with its lower cased equivalent.
Just start out with the lower case versions in the first
place.

Change-Id: I1e771ef443db1b8d34018d19a64a9ee489cd8133
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/5767
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>

Makefile.inc

@@ -149,7 +149,7 @@ smm-c-deps:=$$(OPTION_TABLE_H)
 define ramstage-objs_asl_template
 $(obj)/$(1).ramstage.o: src/$(1).asl $(obj)/config.h
 	@printf "    IASL       $$(subst $(top)/,,$$(@))\n"
-	$(CC_ramstage) -x assembler-with-cpp -E -MMD -MT $$(@) -D__ACPI__ -P -include $(src)/include/kconfig.h -I$(obj) -I$(src) -I$(src)/include -I$(src)/arch/$(ARCHDIR-$(ARCH-RAMSTAGE-y))/include -I$(src)/mainboard/$(MAINBOARDDIR) $$< -o $$(basename $$@).asl
+	$(CC_ramstage) -x assembler-with-cpp -E -MMD -MT $$(@) -D__ACPI__ -P -include $(src)/include/kconfig.h -I$(obj) -I$(src) -I$(src)/include -I$(src)/arch/$(ARCHDIR-$(ARCH-ramstage-y))/include -I$(src)/mainboard/$(MAINBOARDDIR) $$< -o $$(basename $$@).asl
 	cd $$(dir $$@); $(IASL) -p $$(notdir $$@) -tc $$(notdir $$(basename $$@)).asl
 	mv $$(basename $$@).hex $$(basename $$@).c
 	$(CC_ramstage) $$(CFLAGS_ramstage) $$(CPPFLAGS_ramstage) $$(if $$(subst dsdt,,$$(basename $$(notdir $(1)))), -DAmlCode=AmlCode_$$(basename $$(notdir $(1)))) -c -o $$@ $$(basename $$@).c

src/vendorcode/google/chromeos/Makefile.inc

@@ -44,7 +44,7 @@ VB_LIB = $(obj)/external/vboot_reference/vboot_fw.a
 # up all components in one of the three stages of coreboot, vboot seems
 # most logical to fall under the romstage. Thus, all references to arch
 # and other compiler stuff for vboot is using the romstage arch.
-VB_FIRMWARE_ARCH := $(ARCHDIR-$(ARCH-ROMSTAGE-y))
+VB_FIRMWARE_ARCH := $(ARCHDIR-$(ARCH-romstage-y))
 VB_SOURCE := vboot_reference
 
 # Add the vboot include paths.

toolchain.inc

@@ -17,10 +17,7 @@
 ## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 ##
 
-ARCH_SUPPORTED := ARMV7 X86_32
-
-ARCH_TO_TOOLCHAIN_X86_32 := x86_32
-ARCH_TO_TOOLCHAIN_ARMV7  := armv7
+ARCH_SUPPORTED := armv7 x86_32
 
 COREBOOT_STANDARD_STAGES := bootblock romstage ramstage
 
@@ -38,8 +35,8 @@ CFLAGS_armv7 = \
 
 toolchain_to_dir = \
 	$(foreach arch,$(ARCH_SUPPORTED),\
-	$(eval CPPFLAGS_$(ARCH_TO_TOOLCHAIN_$(arch)) = \
-	-Isrc/arch/$(ARCHDIR-$(ARCH_TO_TOOLCHAIN_$(arch)))/include))
+	$(eval CPPFLAGS_$(arch) = \
+	-Isrc/arch/$(ARCHDIR-$(arch))/include))
 
 # set_stage_toolchain: Decides the toolchain to be used by every stage
 # E.g.: If bootblock is x86_32, it sets ARCH-BOOTBLOCK-y = x86_32, whereas
@@ -49,7 +46,7 @@ toolchain_to_dir = \
 # stages i.e. bootblock, romstage and ramstage, since it acts as the second
 # parameter to create_class_compiler below in init_standard_toolchain
 set_stage_toolchain= \
-	$(foreach arch,$(ARCH_SUPPORTED),$(eval ARCH-$(1)-$(CONFIG_ARCH_$(1)_$(arch)) := $(ARCH_TO_TOOLCHAIN_$(arch))))
+	$(foreach arch,$(ARCH_SUPPORTED),$(eval ARCH-$(1)-$($(shell echo CONFIG_ARCH_$(1)_$(arch) | tr '[:lower:]' '[:upper:]')) := $(arch)))
 
 # create_class_compiler: Used to create compiler tool set for
 # special classes
@@ -73,9 +70,8 @@ endef
 # initialize standard toolchain (CC,AS and others) for give stage
 # @1 : stage for which the toolchain is to be initialized
 init_standard_toolchain = \
-	$(eval stage_caps := $(shell printf "%s" $(1) | tr '[:lower:]' '[:upper:]' )) \
-	$(eval $(call set_stage_toolchain,$(stage_caps))) \
-	$(eval $(call create_class_compiler,$(1),$(ARCH-$(stage_caps)-y))) \
+	$(eval $(call set_stage_toolchain,$(1))) \
+	$(eval $(call create_class_compiler,$(1),$(ARCH-$(1)-y))) \
 	$(eval $(call set_stage_libgcc,$(1)))
 
 init_stages = \