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OpenCloudOS-Kernel/arch/nios2/Makefile

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nios2: Build infrastructure This patch adds Makefile and Kconfig files required for building a nios2 kernel. Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-11-06 15:20:19 +08:00
#
# 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) 2013 Altera Corporation
# Copyright (C) 1994, 95, 96, 2003 by Wind River Systems
# Written by Fredrik Markstrom
#
# This file is included by the global makefile so that you can add your own
kbuild: use more subdir- for visiting subdirectories while cleaning Documentation/kbuild/makefiles.rst suggests to use "archclean" for cleaning arch/$(SRCARCH)/boot/, but it is not a hard requirement. Since commit d92cc4d51643 ("kbuild: require all architectures to have arch/$(SRCARCH)/Kbuild"), we can use the "subdir- += boot" trick for all architectures. This can take advantage of the parallel option (-j) for "make clean". I also cleaned up the comments in arch/$(SRCARCH)/Makefile. The "archdep" target no longer exists. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Kees Cook <keescook@chromium.org> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
2021-10-13 14:36:22 +08:00
# architecture-specific flags and dependencies.
nios2: Build infrastructure This patch adds Makefile and Kconfig files required for building a nios2 kernel. Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-11-06 15:20:19 +08:00
#
# Nios2 port by Wind River Systems Inc trough:
# fredrik.markstrom@gmail.com and ivarholmqvist@gmail.com
nios2: enable "make defconfig" Running "make defconfig" currently fails for nios2: $ make ARCH=nios2 defconfig scripts/kconfig/conf --defconfig Kconfig *** *** Can't find default configuration "arch/nios2/defconfig"! *** make[1]: *** [defconfig] Error 1 make: *** [defconfig] Error 2 Add a definition for KBUILD_DEFCONFIG to the nios2's main Makefile to enable this make target. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Acked-by: Ley Foon Tan <lftan@altera.com>
2014-12-11 10:49:36 +08:00
KBUILD_DEFCONFIG := 3c120_defconfig
nios2: Build infrastructure This patch adds Makefile and Kconfig files required for building a nios2 kernel. Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-11-06 15:20:19 +08:00
UTS_SYSNAME = Linux
export MMU
nios2: Fix libgcc location detection The extra CFLAGS required for correct operation of the toolchain are not propagated into the libgcc detection code. In case of the compiler from poky sdk, these extra CFLAGS contain the location of compiler sysroot (the --sysroot= option) and without this option, the location of libgcc is not properly reported. Add the missing CFLAGS to address this issue. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Ley Foon Tan <lftan@altera.com> Cc: Romain Perier <romain.perier@free-electrons.com> Acked-by: Romain Perier <romain.perier@free-electrons.com> Acked-by: Ley Foon Tan <lftan@altera.com>
2016-05-17 14:01:18 +08:00
LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) $(KCFLAGS) -print-libgcc-file-name)
nios2: Build infrastructure This patch adds Makefile and Kconfig files required for building a nios2 kernel. Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-11-06 15:20:19 +08:00
nios2: Add NIOS2_ARCH_REVISION to select between R1 and R2 Allow user to select between Nios2 R1 and R2. Since R1 and R2 are not binary compatible, we cannot have a single kernel binary and there is no point in having DT property for discerning these two. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Ley Foon Tan <lftan@altera.com>
2017-04-19 19:19:00 +08:00
KBUILD_AFLAGS += -march=r$(CONFIG_NIOS2_ARCH_REVISION)
nios2: Build infrastructure This patch adds Makefile and Kconfig files required for building a nios2 kernel. Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-11-06 15:20:19 +08:00
KBUILD_CFLAGS += -pipe -D__linux__ -D__ELF__
nios2: Add NIOS2_ARCH_REVISION to select between R1 and R2 Allow user to select between Nios2 R1 and R2. Since R1 and R2 are not binary compatible, we cannot have a single kernel binary and there is no point in having DT property for discerning these two. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Ley Foon Tan <lftan@altera.com>
2017-04-19 19:19:00 +08:00
KBUILD_CFLAGS += -march=r$(CONFIG_NIOS2_ARCH_REVISION)
nios2: Build infrastructure This patch adds Makefile and Kconfig files required for building a nios2 kernel. Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-11-06 15:20:19 +08:00
KBUILD_CFLAGS += $(if $(CONFIG_NIOS2_HW_MUL_SUPPORT),-mhw-mul,-mno-hw-mul)
KBUILD_CFLAGS += $(if $(CONFIG_NIOS2_HW_MULX_SUPPORT),-mhw-mulx,-mno-hw-mulx)
KBUILD_CFLAGS += $(if $(CONFIG_NIOS2_HW_DIV_SUPPORT),-mhw-div,-mno-hw-div)
nios2: Add BMX support Add support for the BMX Bit Manipulation Extensions present in Nios II R2 . This introduces three new instructions, EXTRACT, INSERT and MERGE. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Ley Foon Tan <lftan@altera.com>
2017-04-19 19:19:01 +08:00
KBUILD_CFLAGS += $(if $(CONFIG_NIOS2_BMX_SUPPORT),-mbmx,-mno-bmx)
nios2: Add CDX support Add support for the CDX Code Density Extensions present in Nios II R2 . This introduces new 16bit instruction set to improve code density while retaining support for the 32bit Nios II R2 instructions. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Ley Foon Tan <lftan@altera.com>
2017-04-19 19:19:02 +08:00
KBUILD_CFLAGS += $(if $(CONFIG_NIOS2_CDX_SUPPORT),-mcdx,-mno-cdx)
nios2: Build infrastructure This patch adds Makefile and Kconfig files required for building a nios2 kernel. Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-11-06 15:20:19 +08:00
KBUILD_CFLAGS += $(if $(CONFIG_NIOS2_FPU_SUPPORT),-mcustom-fpu-cfg=60-1,)
KBUILD_CFLAGS += -fno-optimize-sibling-calls
KBUILD_CFLAGS += -DUTS_SYSNAME=\"$(UTS_SYSNAME)\"
KBUILD_CFLAGS += -fno-builtin
KBUILD_CFLAGS += -G 0
head-y := arch/nios2/kernel/head.o
libs-y += arch/nios2/lib/ $(LIBGCC)
core-y += arch/nios2/kernel/ arch/nios2/mm/
core-y += arch/nios2/platform/
INSTALL_PATH ?= /tftpboot
nios2-boot := arch/$(ARCH)/boot
BOOT_TARGETS = vmImage zImage
PHONY += $(BOOT_TARGETS) install
KBUILD_IMAGE := $(nios2-boot)/vmImage
nios2: use common rules to build built-in dtb Using the common build support for built-in dtb files just requires adding a .dtb.o target to obj-y. This has the side effect that CONFIG_NIOS2_DTB_SOURCE should now be just the dts filename in arch/nios2/boot/dts/ directory. Before any path was supported, but if you want to build in your dtb to the kernel, it should be in the kernel tree. Cc: Ley Foon Tan <lftan@altera.com> Cc: nios2-dev@lists.rocketboards.org Signed-off-by: Rob Herring <robh@kernel.org>
2018-08-02 04:14:12 +08:00
core-y += $(nios2-boot)/dts/
nios2: Build infrastructure This patch adds Makefile and Kconfig files required for building a nios2 kernel. Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-11-06 15:20:19 +08:00
all: vmImage
$(BOOT_TARGETS): vmlinux
$(Q)$(MAKE) $(build)=$(nios2-boot) $(nios2-boot)/$@
install:
nios2: move the install rule to arch/nios2/Makefile Currently, the install target in arch/nios2/Makefile descends into arch/nios2/boot/Makefile to invoke the shell script, but it is no good reason to do so. arch/nios2/Makefile can run the shell script directly. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2021-07-29 22:07:06 +08:00
sh $(srctree)/$(nios2-boot)/install.sh $(KERNELRELEASE) \
$(KBUILD_IMAGE) System.map "$(INSTALL_PATH)"
nios2: Build infrastructure This patch adds Makefile and Kconfig files required for building a nios2 kernel. Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-11-06 15:20:19 +08:00
define archhelp
echo '* vmImage - Kernel-only image for U-Boot ($(KBUILD_IMAGE))'
echo ' install - Install kernel using'
echo ' (your) ~/bin/$(INSTALLKERNEL) or'
echo ' (distribution) /sbin/$(INSTALLKERNEL) or'
echo ' install to $$(INSTALL_PATH)'
endef