#

  # (C) Copyright 2000-2013

  # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
  #

  # SPDX-License-Identifier:	GPL-2.0+

  #

  #########################################################################

  # This file is included from ./Makefile and spl/Makefile.
  # Clean the state to avoid the same flags added twice.
  #
  # (Tegra needs different flags for SPL.
  #  That's the reason why this file must be included from spl/Makefile too.
  #  If we did not have Tegra SoCs, build system would be much simpler...)
  PLATFORM_RELFLAGS :=
  PLATFORM_CPPFLAGS :=
  PLATFORM_LDFLAGS :=
  LDFLAGS :=
  LDFLAGS_FINAL :=
  OBJCOPYFLAGS :=

  # clear VENDOR for tcsh
  VENDOR :=

  #########################################################################

  ARCH := $(CONFIG_SYS_ARCH:"%"=%)
  CPU := $(CONFIG_SYS_CPU:"%"=%)

  ifdef CONFIG_SPL_BUILD
  ifdef CONFIG_TEGRA
  CPU := arm720t
  endif
  endif

  BOARD := $(CONFIG_SYS_BOARD:"%"=%)
  ifneq ($(CONFIG_SYS_VENDOR),)
  VENDOR := $(CONFIG_SYS_VENDOR:"%"=%)
  endif
  ifneq ($(CONFIG_SYS_SOC),)
  SOC := $(CONFIG_SYS_SOC:"%"=%)
  endif

  # Some architecture config.mk files need to know what CPUDIR is set to,
  # so calculate CPUDIR before including ARCH/SOC/CPU config.mk files.

  # Check if arch/$ARCH/cpu/$CPU exists, otherwise assume arch/$ARCH/cpu contains
  # CPU-specific code.

  CPUDIR=arch/$(ARCH)/cpu$(if $(CPU),/$(CPU),)

  sinclude $(srctree)/arch/$(ARCH)/config.mk	# include architecture dependend rules
  sinclude $(srctree)/$(CPUDIR)/config.mk		# include  CPU	specific rules

  ifdef	SOC

  sinclude $(srctree)/$(CPUDIR)/$(SOC)/config.mk	# include  SoC	specific rules

  endif

  ifneq ($(BOARD),)

  ifdef	VENDOR
  BOARDDIR = $(VENDOR)/$(BOARD)
  else
  BOARDDIR = $(BOARD)
  endif

  endif

  ifdef	BOARD

  sinclude $(srctree)/board/$(BOARDDIR)/config.mk	# include board specific rules

  endif

  ifdef FTRACE
  PLATFORM_CPPFLAGS += -finstrument-functions -DFTRACE
  endif

  # Allow use of stdint.h if available
  ifneq ($(USE_STDINT),)
  PLATFORM_CPPFLAGS += -DCONFIG_USE_STDINT
  endif

  #########################################################################

  RELFLAGS := $(PLATFORM_RELFLAGS)

  PLATFORM_CPPFLAGS += $(RELFLAGS)
  PLATFORM_CPPFLAGS += -pipe

  LDFLAGS += $(PLATFORM_LDFLAGS)

  LDFLAGS_FINAL += -Bstatic

  
  export PLATFORM_CPPFLAGS
  export RELFLAGS
  export LDFLAGS_FINAL
  export CONFIG_STANDALONE_LOAD_ADDR