linux/arch/xtensa/Makefile
Rob Herring 990857042f xtensa: enable building of all dtbs
Enable building all dtb files when CONFIG_OF_ALL_DTBS is enabled. The dtbs
are not really dependent on a platform being enabled or any other kernel
config, so for testing coverage it is convenient to build all of the dtbs.
This builds all dts files in the tree, not just targets listed.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Chris Zankel <chris@zankel.net>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: linux-xtensa@linux-xtensa.org
2015-10-27 16:12:16 -05:00

111 lines
2.9 KiB
Makefile

#
# This file is subject to the terms and conditions of the GNU General Public
# License. See the file "COPYING" in the main directory of this archive
# for more details.
#
# Copyright (C) 2001 - 2005 Tensilica Inc.
# Copyright (C) 2014 Cadence Design Systems Inc.
#
# This file is included by the global makefile so that you can add your own
# architecture-specific flags and dependencies. Remember to do have actions
# for "archclean" and "archdep" for cleaning up and making dependencies for
# this architecture
# Core configuration.
# (Use VAR=<xtensa_config> to use another default compiler.)
variant-y := $(patsubst "%",%,$(CONFIG_XTENSA_VARIANT_NAME))
VARIANT = $(variant-y)
export VARIANT
# Test for cross compiling
ifneq ($(VARIANT),)
COMPILE_ARCH = $(shell uname -m)
ifneq ($(COMPILE_ARCH), xtensa)
ifndef CROSS_COMPILE
CROSS_COMPILE = xtensa_$(VARIANT)-
endif
endif
endif
# Platform configuration
platform-$(CONFIG_XTENSA_PLATFORM_XT2000) := xt2000
platform-$(CONFIG_XTENSA_PLATFORM_ISS) := iss
platform-$(CONFIG_XTENSA_PLATFORM_XTFPGA) := xtfpga
PLATFORM = $(platform-y)
export PLATFORM
# temporarily until string.h is fixed
KBUILD_CFLAGS += -ffreestanding -D__linux__
KBUILD_CFLAGS += -pipe -mlongcalls
KBUILD_CFLAGS += $(call cc-option,-mforce-no-pic,)
ifneq ($(CONFIG_LD_NO_RELAX),)
LDFLAGS := --no-relax
endif
ifeq ($(shell echo __XTENSA_EB__ | $(CC) -E - | grep -v "\#"),1)
CHECKFLAGS += -D__XTENSA_EB__
endif
ifeq ($(shell echo __XTENSA_EL__ | $(CC) -E - | grep -v "\#"),1)
CHECKFLAGS += -D__XTENSA_EL__
endif
vardirs := $(patsubst %,arch/xtensa/variants/%/,$(variant-y))
plfdirs := $(patsubst %,arch/xtensa/platforms/%/,$(platform-y))
ifeq ($(KBUILD_SRC),)
KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(vardirs) $(plfdirs))
else
KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(vardirs) $(plfdirs))
endif
KBUILD_DEFCONFIG := iss_defconfig
# Only build variant and/or platform if it includes a Makefile
buildvar := $(shell test -e $(srctree)/arch/xtensa/variants/$(VARIANT)/Makefile && echo arch/xtensa/variants/$(VARIANT)/)
buildplf := $(shell test -e $(srctree)/arch/xtensa/platforms/$(PLATFORM)/Makefile && echo arch/xtensa/platforms/$(PLATFORM)/)
# Find libgcc.a
LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
head-y := arch/xtensa/kernel/head.o
core-y += arch/xtensa/kernel/ arch/xtensa/mm/
core-y += $(buildvar) $(buildplf)
libs-y += arch/xtensa/lib/ $(LIBGCC)
drivers-$(CONFIG_OPROFILE) += arch/xtensa/oprofile/
ifneq ($(CONFIG_BUILTIN_DTB),"")
core-$(CONFIG_OF) += arch/xtensa/boot/dts/
endif
boot := arch/xtensa/boot
all: zImage
bzImage : zImage
zImage: vmlinux
$(Q)$(MAKE) $(build)=$(boot) $@
%.dtb:
$(Q)$(MAKE) $(build)=$(boot)/dts $(boot)/dts/$@
dtbs: scripts
$(Q)$(MAKE) $(build)=$(boot)/dts
define archhelp
@echo '* zImage - Compressed kernel image (arch/xtensa/boot/images/zImage.*)'
@echo ' dtbs - Build device tree blobs for enabled boards'
endef