xref: /openbmc/linux/arch/nios2/Makefile (revision 8730046c) 
1#
2# This file is subject to the terms and conditions of the GNU General Public
3# License.  See the file "COPYING" in the main directory of this archive
4# for more details.
5#
6# Copyright (C) 2013 Altera Corporation
7# Copyright (C) 1994, 95, 96, 2003 by Wind River Systems
8# Written by Fredrik Markstrom
9#
10# This file is included by the global makefile so that you can add your own
11# architecture-specific flags and dependencies. Remember to do have actions
12# for "archclean" cleaning up for this architecture.
13#
14# Nios2 port by Wind River Systems Inc trough:
15#   fredrik.markstrom@gmail.com and ivarholmqvist@gmail.com
16
17KBUILD_DEFCONFIG := 3c120_defconfig
18
19UTS_SYSNAME = Linux
20
21export MMU
22
23LIBGCC         := $(shell $(CC) $(KBUILD_CFLAGS) $(KCFLAGS) -print-libgcc-file-name)
24
25KBUILD_CFLAGS += -pipe -D__linux__ -D__ELF__
26KBUILD_CFLAGS += $(if $(CONFIG_NIOS2_HW_MUL_SUPPORT),-mhw-mul,-mno-hw-mul)
27KBUILD_CFLAGS += $(if $(CONFIG_NIOS2_HW_MULX_SUPPORT),-mhw-mulx,-mno-hw-mulx)
28KBUILD_CFLAGS += $(if $(CONFIG_NIOS2_HW_DIV_SUPPORT),-mhw-div,-mno-hw-div)
29KBUILD_CFLAGS += $(if $(CONFIG_NIOS2_FPU_SUPPORT),-mcustom-fpu-cfg=60-1,)
30
31KBUILD_CFLAGS += -fno-optimize-sibling-calls
32KBUILD_CFLAGS += -DUTS_SYSNAME=\"$(UTS_SYSNAME)\"
33KBUILD_CFLAGS += -fno-builtin
34KBUILD_CFLAGS += -G 0
35
36head-y		:= arch/nios2/kernel/head.o
37libs-y		+= arch/nios2/lib/ $(LIBGCC)
38core-y		+= arch/nios2/kernel/ arch/nios2/mm/
39core-y		+= arch/nios2/platform/
40
41INSTALL_PATH ?= /tftpboot
42nios2-boot := arch/$(ARCH)/boot
43BOOT_TARGETS = vmImage zImage
44PHONY += $(BOOT_TARGETS) install
45KBUILD_IMAGE := $(nios2-boot)/vmImage
46
47ifneq ($(CONFIG_NIOS2_DTB_SOURCE),"")
48	core-y	+= $(nios2-boot)/
49endif
50
51all: vmImage
52
53archclean:
54	$(Q)$(MAKE) $(clean)=$(nios2-boot)
55
56%.dtb: | scripts
57	$(Q)$(MAKE) $(build)=$(nios2-boot) $(nios2-boot)/$@
58
59dtbs:
60	$(Q)$(MAKE) $(build)=$(nios2-boot) $(nios2-boot)/$@
61
62$(BOOT_TARGETS): vmlinux
63	$(Q)$(MAKE) $(build)=$(nios2-boot) $(nios2-boot)/$@
64
65install:
66	$(Q)$(MAKE) $(build)=$(nios2-boot) BOOTIMAGE=$(KBUILD_IMAGE) install
67
68define archhelp
69  echo  '* vmImage         - Kernel-only image for U-Boot ($(KBUILD_IMAGE))'
70  echo  '  install         - Install kernel using'
71  echo  '                     (your) ~/bin/$(INSTALLKERNEL) or'
72  echo  '                     (distribution) /sbin/$(INSTALLKERNEL) or'
73  echo  '                     install to $$(INSTALL_PATH)'
74  echo  '  dtbs            - Build device tree blobs for enabled boards'
75endef
76