config.mk 2.2 KB

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  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. CROSS_COMPILE ?= arm-linux-
  24. ifeq ($(BOARD),omap2420h4)
  25. STANDALONE_LOAD_ADDR = 0x80300000
  26. else
  27. ifeq ($(SOC),omap3)
  28. STANDALONE_LOAD_ADDR = 0x80300000
  29. else
  30. STANDALONE_LOAD_ADDR = 0xc100000
  31. endif
  32. endif
  33. ifndef CONFIG_SYS_ARM_WITHOUT_RELOC
  34. # needed for relocation
  35. PLATFORM_RELFLAGS += -fPIC
  36. endif
  37. ifdef CONFIG_SYS_ARM_WITHOUT_RELOC
  38. PLATFORM_CPPFLAGS += -DCONFIG_SYS_ARM_WITHOUT_RELOC
  39. endif
  40. PLATFORM_CPPFLAGS += -DCONFIG_ARM -D__ARM__
  41. # Explicitly specifiy 32-bit ARM ISA since toolchain default can be -mthumb:
  42. PLATFORM_CPPFLAGS += $(call cc-option,-marm,)
  43. # Try if EABI is supported, else fall back to old API,
  44. # i. e. for example:
  45. # - with ELDK 4.2 (EABI supported), use:
  46. # -mabi=aapcs-linux -mno-thumb-interwork
  47. # - with ELDK 4.1 (gcc 4.x, no EABI), use:
  48. # -mabi=apcs-gnu -mno-thumb-interwork
  49. # - with ELDK 3.1 (gcc 3.x), use:
  50. # -mapcs-32 -mno-thumb-interwork
  51. PLATFORM_CPPFLAGS += $(call cc-option,\
  52. -mabi=aapcs-linux -mno-thumb-interwork,\
  53. $(call cc-option,\
  54. -mapcs-32,\
  55. $(call cc-option,\
  56. -mabi=apcs-gnu,\
  57. )\
  58. ) $(call cc-option,-mno-thumb-interwork,)\
  59. )
  60. # For EABI, make sure to provide raise()
  61. ifneq (,$(findstring -mabi=aapcs-linux,$(PLATFORM_CPPFLAGS)))
  62. # This file is parsed several times; make sure to add only once.
  63. ifeq (,$(findstring arch/arm/lib/eabi_compat.o,$(PLATFORM_LIBS)))
  64. PLATFORM_LIBS += $(OBJTREE)/arch/arm/lib/eabi_compat.o
  65. endif
  66. endif
  67. LDSCRIPT := $(SRCTREE)/$(CPUDIR)/u-boot.lds