1# 2# (C) Copyright 2000-2002 3# Wolfgang Denk, DENX Software Engineering, wd@denx.de. 4# 5# See file CREDITS for list of people who contributed to this 6# project. 7# 8# This program is free software; you can redistribute it and/or 9# modify it under the terms of the GNU General Public License as 10# published by the Free Software Foundation; either version 2 of 11# the License, or (at your option) any later version. 12# 13# This program is distributed in the hope that it will be useful, 14# but WITHOUT ANY WARRANTY; without even the implied warranty of 15# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16# GNU General Public License for more details. 17# 18# You should have received a copy of the GNU General Public License 19# along with this program; if not, write to the Free Software 20# Foundation, Inc., 59 Temple Place, Suite 330, Boston, 21# MA 02111-1307 USA 22# 23 24CROSS_COMPILE ?= arm-linux- 25 26ifeq ($(BOARD),omap2420h4) 27STANDALONE_LOAD_ADDR = 0x80300000 28else 29ifeq ($(SOC),omap3) 30STANDALONE_LOAD_ADDR = 0x80300000 31else 32STANDALONE_LOAD_ADDR = 0xc100000 33endif 34endif 35 36ifdef CONFIG_SYS_ARM_WITHOUT_RELOC 37PLATFORM_CPPFLAGS += -DCONFIG_SYS_ARM_WITHOUT_RELOC 38endif 39PLATFORM_CPPFLAGS += -DCONFIG_ARM -D__ARM__ 40 41# Explicitly specifiy 32-bit ARM ISA since toolchain default can be -mthumb: 42PLATFORM_CPPFLAGS += $(call cc-option,-marm,) 43 44# Try if EABI is supported, else fall back to old API, 45# i. e. for example: 46# - with ELDK 4.2 (EABI supported), use: 47# -mabi=aapcs-linux -mno-thumb-interwork 48# - with ELDK 4.1 (gcc 4.x, no EABI), use: 49# -mabi=apcs-gnu -mno-thumb-interwork 50# - with ELDK 3.1 (gcc 3.x), use: 51# -mapcs-32 -mno-thumb-interwork 52PLATFORM_CPPFLAGS += $(call cc-option,\ 53 -mabi=aapcs-linux -mno-thumb-interwork,\ 54 $(call cc-option,\ 55 -mapcs-32,\ 56 $(call cc-option,\ 57 -mabi=apcs-gnu,\ 58 )\ 59 ) $(call cc-option,-mno-thumb-interwork,)\ 60 ) 61 62# For EABI, make sure to provide raise() 63ifneq (,$(findstring -mabi=aapcs-linux,$(PLATFORM_CPPFLAGS))) 64# This file is parsed several times; make sure to add only once. 65ifeq (,$(findstring arch/arm/lib/eabi_compat.o,$(PLATFORM_LIBS))) 66PLATFORM_LIBS += $(OBJTREE)/arch/arm/lib/eabi_compat.o 67endif 68endif 69LDSCRIPT := $(SRCTREE)/$(CPUDIR)/u-boot.lds 70 71ifndef CONFIG_SYS_ARM_WITHOUT_RELOC 72# needed for relocation 73ifndef CONFIG_NAND_SPL 74PLATFORM_LDFLAGS += -pie 75endif 76endif 77