config.mk

   1 # SPDX-License-Identifier: GPL-2.0+
   2 #
   3 # (C) Copyright 2000-2013
   4 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   5 #########################################################################
   6
   7 # This file is included from ./Makefile and spl/Makefile.
   8 # Clean the state to avoid the same flags added twice.
   9 #
  10 # (Tegra needs different flags for SPL.
  11 #  That's the reason why this file must be included from spl/Makefile too.
  12 #  If we did not have Tegra SoCs, build system would be much simpler...)
  13 PLATFORM_RELFLAGS :=
  14 PLATFORM_CPPFLAGS :=
  15 LDFLAGS_FINAL :=
  16 LDFLAGS_STANDALONE :=
  17 OBJCOPYFLAGS :=
  18 # clear VENDOR for tcsh
  19 VENDOR :=
  20 #########################################################################
  21
  22 ARCH := $(CONFIG_SYS_ARCH:"%"=%)
  23 CPU := $(CONFIG_SYS_CPU:"%"=%)
  24 ifdef CONFIG_SPL_BUILD
  25 ifdef CONFIG_ARCH_TEGRA
  26 CPU := arm720t
  27 endif
  28 endif
  29 BOARD := $(CONFIG_SYS_BOARD:"%"=%)
  30 ifneq ($(CONFIG_SYS_VENDOR),)
  31 VENDOR := $(CONFIG_SYS_VENDOR:"%"=%)
  32 endif
  33 ifneq ($(CONFIG_SYS_SOC),)
  34 SOC := $(CONFIG_SYS_SOC:"%"=%)
  35 endif
  36
  37 # Some architecture config.mk files need to know what CPUDIR is set to,
  38 # so calculate CPUDIR before including ARCH/SOC/CPU config.mk files.
  39 # Check if arch/$ARCH/cpu/$CPU exists, otherwise assume arch/$ARCH/cpu contains
  40 # CPU-specific code.
  41 CPUDIR=arch/$(ARCH)/cpu$(if $(CPU),/$(CPU),)
  42
  43 sinclude $(srctree)/arch/$(ARCH)/config.mk      # include architecture dependend rules
  44 sinclude $(srctree)/$(CPUDIR)/config.mk         # include  CPU  specific rules
  45
  46 ifdef   SOC
  47 sinclude $(srctree)/$(CPUDIR)/$(SOC)/config.mk  # include  SoC  specific rules
  48 endif
  49 ifneq ($(BOARD),)
  50 ifdef   VENDOR
  51 BOARDDIR = $(VENDOR)/$(BOARD)
  52 ENVDIR=${vendor}/env
  53 else
  54 BOARDDIR = $(BOARD)
  55 ENVDIR=${board}/env
  56 endif
  57 endif
  58 ifdef   BOARD
  59 sinclude $(srctree)/board/$(BOARDDIR)/config.mk # include board specific rules
  60 endif
  61
  62 ifdef FTRACE
  63 PLATFORM_CPPFLAGS += -finstrument-functions -DFTRACE
  64 endif
  65
  66 #########################################################################
  67
  68 RELFLAGS := $(PLATFORM_RELFLAGS)
  69
  70 PLATFORM_CPPFLAGS += $(RELFLAGS)
  71 PLATFORM_CPPFLAGS += -pipe
  72
  73 LDFLAGS_FINAL += -Bstatic
  74
  75 export PLATFORM_CPPFLAGS
  76 export RELFLAGS
  77 export LDFLAGS_FINAL
  78 export LDFLAGS_STANDALONE
  79 export CONFIG_STANDALONE_LOAD_ADDR