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wdenk39f0e5f2002-08-14 20:30:46 +00001#
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
Mike Frysinger1ea6bcd2009-06-14 23:33:14 -040024CROSS_COMPILE ?= arm-linux-
25
Wolfgang Denk8ae86b72011-02-04 14:25:17 +010026ifndef CONFIG_STANDALONE_LOAD_ADDR
Mike Frysinger262ae0a2009-09-03 23:12:47 -040027ifeq ($(SOC),omap3)
Wolfgang Denk8ae86b72011-02-04 14:25:17 +010028CONFIG_STANDALONE_LOAD_ADDR = 0x80300000
Mike Frysinger262ae0a2009-09-03 23:12:47 -040029else
Wolfgang Denk8ae86b72011-02-04 14:25:17 +010030CONFIG_STANDALONE_LOAD_ADDR = 0xc100000
Mike Frysinger262ae0a2009-09-03 23:12:47 -040031endif
32endif
33
wdenk39f0e5f2002-08-14 20:30:46 +000034PLATFORM_CPPFLAGS += -DCONFIG_ARM -D__ARM__
Jean-Christophe PLAGNIOL-VILLARD10a451c2009-05-08 20:24:12 +020035
Aneesh V5356f542012-03-08 07:20:19 +000036# Choose between ARM/Thumb instruction sets
37ifeq ($(CONFIG_SYS_THUMB_BUILD),y)
38PF_CPPFLAGS_ARM := $(call cc-option, -mthumb -mthumb-interwork,\
39 $(call cc-option,-marm,)\
40 $(call cc-option,-mno-thumb-interwork,)\
41 )
42else
43PF_CPPFLAGS_ARM := $(call cc-option,-marm,) \
44 $(call cc-option,-mno-thumb-interwork,)
45endif
Wolfgang Denkf772acf2009-08-17 13:17:29 +020046
Tom Rini06a119a2012-03-16 06:34:35 +000047# Only test once
48ifneq ($(CONFIG_SPL_BUILD),y)
49ALL-$(CONFIG_SYS_THUMB_BUILD) += checkthumb
50endif
51
Wolfgang Denkf772acf2009-08-17 13:17:29 +020052# Try if EABI is supported, else fall back to old API,
53# i. e. for example:
54# - with ELDK 4.2 (EABI supported), use:
Aneesh V5356f542012-03-08 07:20:19 +000055# -mabi=aapcs-linux
Wolfgang Denkf772acf2009-08-17 13:17:29 +020056# - with ELDK 4.1 (gcc 4.x, no EABI), use:
Aneesh V5356f542012-03-08 07:20:19 +000057# -mabi=apcs-gnu
Wolfgang Denkf772acf2009-08-17 13:17:29 +020058# - with ELDK 3.1 (gcc 3.x), use:
Aneesh V5356f542012-03-08 07:20:19 +000059# -mapcs-32
Wolfgang Denkcca4e4a2011-11-01 20:54:02 +000060PF_CPPFLAGS_ABI := $(call cc-option,\
Aneesh V5356f542012-03-08 07:20:19 +000061 -mabi=aapcs-linux,\
Wolfgang Denkcca4e4a2011-11-01 20:54:02 +000062 $(call cc-option,\
63 -mapcs-32,\
Wolfgang Denkf772acf2009-08-17 13:17:29 +020064 $(call cc-option,\
Wolfgang Denkcca4e4a2011-11-01 20:54:02 +000065 -mabi=apcs-gnu,\
66 )\
Aneesh V5356f542012-03-08 07:20:19 +000067 )\
Wolfgang Denkcca4e4a2011-11-01 20:54:02 +000068 )
69PLATFORM_CPPFLAGS += $(PF_CPPFLAGS_ARM) $(PF_CPPFLAGS_ABI)
Wolfgang Denkf772acf2009-08-17 13:17:29 +020070
71# For EABI, make sure to provide raise()
72ifneq (,$(findstring -mabi=aapcs-linux,$(PLATFORM_CPPFLAGS)))
Aneesh V52534182011-07-19 05:51:41 +000073# This file is parsed many times, so the string may get added multiple
74# times. Also, the prefix needs to be different based on whether
75# CONFIG_SPL_BUILD is defined or not. 'filter-out' the existing entry
76# before adding the correct one.
77ifdef CONFIG_SPL_BUILD
78PLATFORM_LIBS := $(SPLTREE)/arch/arm/lib/eabi_compat.o \
79 $(filter-out %/arch/arm/lib/eabi_compat.o, $(PLATFORM_LIBS))
80else
81PLATFORM_LIBS := $(OBJTREE)/arch/arm/lib/eabi_compat.o \
82 $(filter-out %/arch/arm/lib/eabi_compat.o, $(PLATFORM_LIBS))
Wolfgang Denkf772acf2009-08-17 13:17:29 +020083endif
84endif
Albert Aribaud92d5ecb2010-10-11 13:13:28 +020085
Albert Aribaud92d5ecb2010-10-11 13:13:28 +020086# needed for relocation
Heiko Schocher97105042010-10-11 14:08:14 +020087ifndef CONFIG_NAND_SPL
Stefano Babica4594e42011-01-27 06:03:49 +000088LDFLAGS_u-boot += -pie
Albert Aribaud92d5ecb2010-10-11 13:13:28 +020089endif