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Kbuild: introduce Makefile in arch/$ARCH/

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Introduce a Makefile under arch/$ARCH/ and include it in the
top Makefile (similar to Linux kernel). This allows further
refactoringi like moving architecture-specific code out of global
makefiles, deprecating config variables (CPU, CPUDIR, SOC) or
deprecating arch/$ARCH/config.mk.

In contrary to Linux kernel, U-Boot defines the ARCH variable by
Kconfig, thus the arch Makefile can only included conditionally
after the top config.mk.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Acked-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
This commit is contained in:
Daniel Schwierzeck
2014-11-21 23:51:33 +01:00
committed by Tom Rini
parent eb8a4fe0dc
commit e19db555b4
17 changed files with 150 additions and 39 deletions
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18
Makefile
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@@ -503,6 +503,7 @@ autoconf_is_current := $(if $(wildcard $(KCONFIG_CONFIG)),$(shell find . \
-path ./include/config/auto.conf -newer $(KCONFIG_CONFIG)))
ifneq ($(autoconf_is_current),)
include $(srctree)/config.mk
include $(srctree)/arch/$(ARCH)/Makefile
endif
# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
@@ -601,17 +602,11 @@ c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
#########################################################################
# U-Boot objects....order is important (i.e. start must be first)
head-y := $(CPUDIR)/start.o
head-$(CONFIG_4xx) += arch/powerpc/cpu/ppc4xx/resetvec.o
head-$(CONFIG_MPC85xx) += arch/powerpc/cpu/mpc85xx/resetvec.o
HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
libs-y += lib/
libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
libs-y += $(CPUDIR)/
libs-$(CONFIG_OF_EMBED) += dts/
libs-y += arch/$(ARCH)/lib/
libs-y += fs/
libs-y += net/
libs-y += disk/
@@ -651,17 +646,6 @@ libs-$(CONFIG_HAS_POST) += post/
libs-y += test/
libs-y += test/dm/
ifneq (,$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35 mxs vf610))
libs-y += arch/$(ARCH)/imx-common/
endif
ifneq (,$(filter $(SOC), armada-xp kirkwood))
libs-y += arch/$(ARCH)/mvebu-common/
endif
libs-$(CONFIG_ARM) += arch/arm/cpu/
libs-$(CONFIG_PPC) += arch/powerpc/cpu/
libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
libs-y := $(sort $(libs-y))