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Chris Zankel8e1a6dd2005-06-23 22:01:10 -07001#
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) 2001 - 2005 Tensilica Inc.
7#
8# This file is included by the global makefile so that you can add your own
9# architecture-specific flags and dependencies. Remember to do have actions
10# for "archclean" and "archdep" for cleaning up and making dependencies for
11# this architecture
12
13# Core configuration.
Chris Zankel173d66812006-12-10 02:18:48 -080014# (Use VAR=<xtensa_config> to use another default compiler.)
Chris Zankel8e1a6dd2005-06-23 22:01:10 -070015
Chris Zankel173d66812006-12-10 02:18:48 -080016variant-$(CONFIG_XTENSA_VARIANT_FSF) := fsf
Chris Zankel00254272008-10-21 09:11:43 -070017variant-$(CONFIG_XTENSA_VARIANT_DC232B) := dc232b
Johannes Weiner000af2c2009-03-04 16:21:32 +010018variant-$(CONFIG_XTENSA_VARIANT_S6000) := s6000
Chris Zankel173d66812006-12-10 02:18:48 -080019variant-$(CONFIG_XTENSA_VARIANT_LINUX_CUSTOM) := custom
Chris Zankel8e1a6dd2005-06-23 22:01:10 -070020
Chris Zankel173d66812006-12-10 02:18:48 -080021VARIANT = $(variant-y)
22export VARIANT
Chris Zankel8e1a6dd2005-06-23 22:01:10 -070023
24# Platform configuration
25
Chris Zankel8e1a6dd2005-06-23 22:01:10 -070026platform-$(CONFIG_XTENSA_PLATFORM_XT2000) := xt2000
27platform-$(CONFIG_XTENSA_PLATFORM_ISS) := iss
Johannes Weinerf82e9392009-03-04 16:21:33 +010028platform-$(CONFIG_XTENSA_PLATFORM_S6105) := s6105
Chris Zankel8e1a6dd2005-06-23 22:01:10 -070029
30PLATFORM = $(platform-y)
31export PLATFORM
32
Chris Zankelb2444d32007-08-04 09:23:54 -070033# temporarily until string.h is fixed
Sam Ravnborga0f97e02007-10-14 22:21:35 +020034KBUILD_CFLAGS += -ffreestanding
Chris Zankelb2444d32007-08-04 09:23:54 -070035
Sam Ravnborga0f97e02007-10-14 22:21:35 +020036KBUILD_CFLAGS += -pipe -mlongcalls
Chris Zankel8e1a6dd2005-06-23 22:01:10 -070037
Chris Zankelcf1c0aa2010-05-02 01:00:22 -070038KBUILD_CFLAGS += $(call cc-option,-mforce-no-pic,)
39
Chris Zankel367b8112008-11-06 06:40:46 -080040vardirs := $(patsubst %,arch/xtensa/variants/%/,$(variant-y))
41plfdirs := $(patsubst %,arch/xtensa/platforms/%/,$(platform-y))
42
43ifeq ($(KBUILD_SRC),)
44KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(vardirs) $(plfdirs))
45else
46KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(vardirs) $(plfdirs))
47endif
48
Chris Zankele7d163f2005-06-30 02:58:59 -070049KBUILD_DEFCONFIG := iss_defconfig
Chris Zankel8e1a6dd2005-06-23 22:01:10 -070050
51# ramdisk/initrd support
52# You need a compressed ramdisk image, named ramdisk.gz in
53# arch/xtensa/boot/ramdisk
54
55core-$(CONFIG_EMBEDDED_RAMDISK) += arch/xtensa/boot/ramdisk/
56
57# Test for cross compiling
58
Chris Zankel173d66812006-12-10 02:18:48 -080059ifneq ($(VARIANT),)
Chris Zankel8e1a6dd2005-06-23 22:01:10 -070060 COMPILE_ARCH = $(shell uname -m)
61
62 ifneq ($(COMPILE_ARCH), xtensa)
63 ifndef CROSS_COMPILE
Chris Zankel173d66812006-12-10 02:18:48 -080064 CROSS_COMPILE = xtensa_$(VARIANT)-
Chris Zankel8e1a6dd2005-06-23 22:01:10 -070065 endif
66 endif
67endif
68
Chris Zankelf1933182009-04-02 16:58:53 -070069# Only build variant and/or platform if it includes a Makefile
70
Geert Uytterhoeven0eff08b2012-06-20 12:52:59 -070071buildvar := $(shell test -e $(srctree)/arch/xtensa/variants/$(VARIANT)/Makefile && echo arch/xtensa/variants/$(VARIANT)/)
72buildplf := $(shell test -e $(srctree)/arch/xtensa/platforms/$(PLATFORM)/Makefile && echo arch/xtensa/platforms/$(PLATFORM)/)
Chris Zankelf1933182009-04-02 16:58:53 -070073
74# Find libgcc.a
Chris Zankel8e1a6dd2005-06-23 22:01:10 -070075
Sam Ravnborga0f97e02007-10-14 22:21:35 +020076LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
Chris Zankel8e1a6dd2005-06-23 22:01:10 -070077
78head-y := arch/xtensa/kernel/head.o
Chris Zankele7d163f2005-06-30 02:58:59 -070079core-y += arch/xtensa/kernel/ arch/xtensa/mm/
Chris Zankelf1933182009-04-02 16:58:53 -070080core-y += $(buildvar) $(buildplf)
81
Chris Zankel8e1a6dd2005-06-23 22:01:10 -070082libs-y += arch/xtensa/lib/ $(LIBGCC)
83
Chris Zankele7d163f2005-06-30 02:58:59 -070084boot := arch/xtensa/boot
85
Chris Zankel8e1a6dd2005-06-23 22:01:10 -070086all: zImage
87
88bzImage : zImage
89
90zImage zImage.initrd: vmlinux
91 $(Q)$(MAKE) $(build)=$(boot) $@
92
Chris Zankel8e1a6dd2005-06-23 22:01:10 -070093define archhelp
94 @echo '* zImage - Compressed kernel image (arch/xtensa/boot/images/zImage.*)'
95endef
96