system/arm/bootloader/arm64/makefile

   1 # Copyright (c) 2019-2020 ARM Limited
   2 # All rights reserved.
   3 #
   4 # Redistribution and use in source and binary forms, with or without
   5 # modification, are permitted provided that the following conditions are
   6 # met: redistributions of source code must retain the above copyright
   7 # notice, this list of conditions and the following disclaimer;
   8 # redistributions in binary form must reproduce the above copyright
   9 # notice, this list of conditions and the following disclaimer in the
  10 # documentation and/or other materials provided with the distribution;
  11 # neither the name of the copyright holders nor the names of its
  12 # contributors may be used to endorse or promote products derived from
  13 # this software without specific prior written permission.
  14 #
  15 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  16 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  17 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  18 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  19 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  20 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  21 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  22 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  23 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  25 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26
  27 CROSS_COMPILE = aarch64-linux-gnu-
  28 CC = $(CROSS_COMPILE)gcc
  29 LD = $(CROSS_COMPILE)ld
  30
  31 .SUFFIXES:
  32
  33 BUILDDIR = .
  34 DESTDIR = $(error Please set DESTDIR to wanted installation directory)
  35
  36 CFLAGS = -march=armv8-a
  37 CPPFLAGS = -DPHYS_OFFSET=0x80000000 \
  38                    -DUART_BASE=0x1c090000 -DSYSREGS_BASE=0x1c010000 \
  39                    -Dkernel=0x80080000 \
  40                    -Dmbox=0x8000fff8 -Ddtb=0x80000100
  41
  42 LDFLAGS = -N -Ttext 0x00000010 -static
  43
  44 .PHONY: all clean install mkdir
  45
  46 all: mkdir $(BUILDDIR)/boot_emm.arm64 \
  47         $(BUILDDIR)/boot.arm64  \
  48         $(BUILDDIR)/boot_v2.arm64
  49
  50 #v1 has a GIC V2
  51 $(BUILDDIR)/boot_emm.o: CPPFLAGS += -UGICV3 -DGIC_CPU_BASE=0x2c002000 \
  52         -DGIC_DIST_BASE=0x2c001000
  53 $(BUILDDIR)/boot.o: CPPFLAGS += -UGICV3 -DGIC_CPU_BASE=0x2c002000 \
  54         -DGIC_DIST_BASE=0x2c001000
  55
  56 #V2 has a GIC V3
  57 $(BUILDDIR)/boot_v2.o: CPPFLAGS += -DGICV3 -DGIC_REDIST_BASE=0x2c010000 \
  58         -DGIC_DIST_BASE=0x2c000000
  59
  60 $(BUILDDIR)/%.arm64: $(BUILDDIR)/%.o
  61         $(LD) -o $@ $< $(LDFLAGS)
  62
  63 $(BUILDDIR)/%.o: boot.S
  64         $(CC) $(CPPFLAGS) -c $< -o $@ $(CFLAGS)
  65
  66 install:
  67         mkdir -p $(DESTDIR)
  68         install -m 644 $(BUILDDIR)/boot_emm.arm64 \
  69                 $(BUILDDIR)/boot.arm64 \
  70                 $(BUILDDIR)/boot_v2.arm64 \
  71                 $(DESTDIR)/.
  72
  73 mkdir:
  74         mkdir -p $(BUILDDIR)
  75
  76 clean:
  77         rm -f $(BUILDDIR)/*.o
  78         rm -f $(BUILDDIR)/boot_emm.arm64 $(BUILDDIR)/boot.arm64 $(BUILDDIR)/boot_v2.arm64