OMAP4+: Force DDR in self-refresh after warm reset
[glsdk/glsdk-u-boot.git] / arch / arm / config.mk
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 #
24 CROSS_COMPILE ?= arm-linux-
26 ifndef CONFIG_STANDALONE_LOAD_ADDR
27 ifeq ($(SOC),omap3)
28 CONFIG_STANDALONE_LOAD_ADDR = 0x80300000
29 else
30 CONFIG_STANDALONE_LOAD_ADDR = 0xc100000
31 endif
32 endif
34 PLATFORM_CPPFLAGS += -DCONFIG_ARM -D__ARM__
36 # Choose between ARM/Thumb instruction sets
37 ifeq ($(CONFIG_SYS_THUMB_BUILD),y)
38 PF_CPPFLAGS_ARM := $(call cc-option, -mthumb -mthumb-interwork,\
39                         $(call cc-option,-marm,)\
40                         $(call cc-option,-mno-thumb-interwork,)\
41                 )
42 else
43 PF_CPPFLAGS_ARM := $(call cc-option,-marm,) \
44                 $(call cc-option,-mno-thumb-interwork,)
45 endif
47 # Only test once
48 ifneq ($(CONFIG_SPL_BUILD),y)
49 ALL-$(CONFIG_SYS_THUMB_BUILD)   += checkthumb
50 endif
52 # Try if EABI is supported, else fall back to old API,
53 # i. e. for example:
54 # - with ELDK 4.2 (EABI supported), use:
55 #       -mabi=aapcs-linux
56 # - with ELDK 4.1 (gcc 4.x, no EABI), use:
57 #       -mabi=apcs-gnu
58 # - with ELDK 3.1 (gcc 3.x), use:
59 #       -mapcs-32
60 PF_CPPFLAGS_ABI := $(call cc-option,\
61                         -mabi=aapcs-linux,\
62                         $(call cc-option,\
63                                 -mapcs-32,\
64                                 $(call cc-option,\
65                                         -mabi=apcs-gnu,\
66                                 )\
67                         )\
68                 )
69 PLATFORM_CPPFLAGS += $(PF_CPPFLAGS_ARM) $(PF_CPPFLAGS_ABI)
71 # For EABI, make sure to provide raise()
72 ifneq (,$(findstring -mabi=aapcs-linux,$(PLATFORM_CPPFLAGS)))
73 # 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.
77 ifdef CONFIG_SPL_BUILD
78 PLATFORM_LIBS := $(SPLTREE)/arch/arm/lib/eabi_compat.o \
79         $(filter-out %/arch/arm/lib/eabi_compat.o, $(PLATFORM_LIBS))
80 else
81 PLATFORM_LIBS := $(OBJTREE)/arch/arm/lib/eabi_compat.o \
82         $(filter-out %/arch/arm/lib/eabi_compat.o, $(PLATFORM_LIBS))
83 endif
84 endif
86 # needed for relocation
87 ifndef CONFIG_NAND_SPL
88 LDFLAGS_u-boot += -pie
89 endif