uboot/config.mk
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   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...)
  13PLATFORM_RELFLAGS :=
  14PLATFORM_CPPFLAGS :=
  15KBUILD_LDFLAGS :=
  16LDFLAGS_FINAL :=
  17LDFLAGS_STANDALONE :=
  18OBJCOPYFLAGS :=
  19# clear VENDOR for tcsh
  20VENDOR :=
  21#########################################################################
  22
  23ARCH := $(CONFIG_SYS_ARCH:"%"=%)
  24CPU := $(CONFIG_SYS_CPU:"%"=%)
  25ifdef CONFIG_SPL_BUILD
  26ifdef CONFIG_ARCH_TEGRA
  27CPU := arm720t
  28endif
  29endif
  30BOARD := $(CONFIG_SYS_BOARD:"%"=%)
  31ifneq ($(CONFIG_SYS_VENDOR),)
  32VENDOR := $(CONFIG_SYS_VENDOR:"%"=%)
  33endif
  34ifneq ($(CONFIG_SYS_SOC),)
  35SOC := $(CONFIG_SYS_SOC:"%"=%)
  36endif
  37
  38# Some architecture config.mk files need to know what CPUDIR is set to,
  39# so calculate CPUDIR before including ARCH/SOC/CPU config.mk files.
  40# Check if arch/$ARCH/cpu/$CPU exists, otherwise assume arch/$ARCH/cpu contains
  41# CPU-specific code.
  42CPUDIR=arch/$(ARCH)/cpu$(if $(CPU),/$(CPU),)
  43
  44sinclude $(srctree)/arch/$(ARCH)/config.mk      # include architecture dependend rules
  45sinclude $(srctree)/$(CPUDIR)/config.mk         # include  CPU  specific rules
  46
  47ifdef   SOC
  48sinclude $(srctree)/$(CPUDIR)/$(SOC)/config.mk  # include  SoC  specific rules
  49endif
  50ifneq ($(BOARD),)
  51ifdef   VENDOR
  52BOARDDIR = $(VENDOR)/$(BOARD)
  53ENVDIR=${vendor}/env
  54else
  55BOARDDIR = $(BOARD)
  56ENVDIR=${board}/env
  57endif
  58endif
  59ifdef   BOARD
  60sinclude $(srctree)/board/$(BOARDDIR)/config.mk # include board specific rules
  61endif
  62
  63ifdef FTRACE
  64PLATFORM_CPPFLAGS += -finstrument-functions -DFTRACE
  65endif
  66
  67#########################################################################
  68
  69RELFLAGS := $(PLATFORM_RELFLAGS)
  70
  71PLATFORM_CPPFLAGS += $(RELFLAGS)
  72PLATFORM_CPPFLAGS += -pipe
  73
  74LDFLAGS_FINAL += -Bstatic
  75
  76export PLATFORM_CPPFLAGS
  77export RELFLAGS
  78export LDFLAGS_FINAL
  79export LDFLAGS_STANDALONE
  80export CONFIG_STANDALONE_LOAD_ADDR
  81