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) 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. 14# (Use VAR=<xtensa_config> to use another default compiler.) 15 16variant-$(CONFIG_XTENSA_VARIANT_FSF) := fsf 17variant-$(CONFIG_XTENSA_VARIANT_DC232B) := dc232b 18variant-$(CONFIG_XTENSA_VARIANT_LINUX_CUSTOM) := custom 19 20VARIANT = $(variant-y) 21export VARIANT 22 23# Platform configuration 24 25platform-$(CONFIG_XTENSA_PLATFORM_XT2000) := xt2000 26platform-$(CONFIG_XTENSA_PLATFORM_ISS) := iss 27 28PLATFORM = $(platform-y) 29export PLATFORM 30 31# temporarily until string.h is fixed 32KBUILD_CFLAGS += -ffreestanding 33 34KBUILD_CFLAGS += -pipe -mlongcalls 35 36KBUILD_DEFCONFIG := iss_defconfig 37 38# ramdisk/initrd support 39# You need a compressed ramdisk image, named ramdisk.gz in 40# arch/xtensa/boot/ramdisk 41 42core-$(CONFIG_EMBEDDED_RAMDISK) += arch/xtensa/boot/ramdisk/ 43 44# Test for cross compiling 45 46ifneq ($(VARIANT),) 47 COMPILE_ARCH = $(shell uname -m) 48 49 ifneq ($(COMPILE_ARCH), xtensa) 50 ifndef CROSS_COMPILE 51 CROSS_COMPILE = xtensa_$(VARIANT)- 52 endif 53 endif 54endif 55 56# 57 58LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name) 59 60head-y := arch/xtensa/kernel/head.o 61core-y += arch/xtensa/kernel/ arch/xtensa/mm/ 62ifneq ($(PLATFORM),) 63core-y += arch/xtensa/platforms/$(PLATFORM)/ 64endif 65libs-y += arch/xtensa/lib/ $(LIBGCC) 66 67boot := arch/xtensa/boot 68 69archinc := include/asm-xtensa 70 71archprepare: $(archinc)/.platform 72 73# Update processor variant and platform symlinks if something which affects 74# them changed. 75 76$(archinc)/.platform: $(wildcard include/config/arch/*.h) include/config/auto.conf 77 @echo ' SYMLINK $(archinc)/variant -> $(archinc)/variant-$(VARIANT)' 78 $(Q)mkdir -p $(archinc) 79 $(Q)ln -fsn $(srctree)/$(archinc)/variant-$(VARIANT) $(archinc)/variant 80 @echo ' SYMLINK $(archinc)/platform -> $(archinc)/platform-$(PLATFORM)' 81 $(Q)ln -fsn $(srctree)/$(archinc)/platform-$(PLATFORM) $(archinc)/platform 82 @touch $@ 83 84 85all: zImage 86 87bzImage : zImage 88 89zImage zImage.initrd: vmlinux 90 $(Q)$(MAKE) $(build)=$(boot) $@ 91 92CLEAN_FILES += arch/xtensa/vmlinux.lds \ 93 $(archinc)/platform $(archinc)/variant \ 94 $(archinc)/.platform 95 96define archhelp 97 @echo '* zImage - Compressed kernel image (arch/xtensa/boot/images/zImage.*)' 98endef 99 100