[m68k] Add Freescale Coldfire V4E Architecture support

- Added m68k vector, exception & interrupt handlers
- Added m68k macros to access m68k movec registers
- Added Coldfire support code (MultiChannelDMA)
- Added board support for phytec phyCore-MCF baseboard
- Added board support for konzeptpark MCB2 prototype

Signed-off-by: Carsten Schlote <schlote@vahanus.net>

1 files changed, 105 insertions, 0 deletions

diff --git a/arch/m68k/Makefile b/arch/m68k/Makefile
new file mode 100644
index 0000000000..e376354a45
--- /dev/null
+++ b/arch/m68k/Makefile
@@ -0,0 +1,105 @@
+#
+# (C) Copyright 2007 Carsten Schlote <schlote@vahanus.net>
+# See file CREDITS for list of people who contributed to this project.
+#
+# This file is part of U-Boot V2.
+#
+# U-Boot V2 is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# U-Boot V2 is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with U-Boot V2.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+CPPFLAGS += -fno-builtin -ffreestanding -nostdinc -Wall 	\
+	-isystem $(gccincdir) -pipe -D __M68K__ \
+	-fno-strict-aliasing
+
+
+machine-$(CONFIG_ARCH_MCF54xx)	   := mcfv4e
+board-$(CONFIG_MACH_KPUKDR1)	   := kp_ukd_r1
+board-$(CONFIG_MACH_KPUKDR1_NUM)   := kp_ukd_r1_num
+board-$(CONFIG_MACH_KPUKDR2)	   := kp_ukd_r2
+board-$(CONFIG_MACH_KPUKDR2_NUM)   := kp_ukd_r2_num
+board-$(CONFIG_MACH_PCM982_5485)   := phycore_mcf54xx
+board-$(CONFIG_MACH_PCM982_5475)   := phycore_mcf54xx
+board-$(CONFIG_MACH_PCM982_5475_NUM) := phycore_mcf54xx_num
+board-$(CONFIG_MACH_PCM982_54455)  := phycore_mcf5445x
+
+cpu-$(CONFIG_MCFV4E)               := mcfv4e
+cpu-$(CONFIG_MCFV4M)               := mcfv4m
+
+TEXT_BASE = $(CONFIG_TEXT_BASE)
+
+CPPFLAGS += -DTEXT_BASE=$(TEXT_BASE) -P
+AFLAGS += -gdwarf-2 -save-temps
+# FIXME - remove overide
+CFLAGS := -Wall -Wundef -Wstrict-prototypes \
+  -msoft-float -mcfv4e -gdwarf-2 -feliminate-unused-debug-types \
+  -fmerge-all-constants -Os
+# Incompatible code in U-Boot for -std=c99
+LDFLAGS_uboot  :=-L $(shell dirname `$(CC) $(CFLAGS) -print-libgcc-file-name`) -lgcc
+#  --verbose --stats
+
+ifeq ($(incdir-y),)
+incdir-y := $(machine-y)
+endif
+INCDIR   := arch-$(incdir-y)
+
+#	Update machine arch and proc symlinks if something which affects
+#	them changed.  We use .arch to indicate when they were updated
+#	last, otherwise make uses the target directory mtime.
+
+include/asm-m68k/.arch: $(wildcard include/config/arch/*.h) include/config/auto.conf
+	@echo '  SYMLINK include/asm-m68k/arch -> include/asm-m68k/$(INCDIR)'
+ifneq ($(KBUILD_SRC),)
+	$(Q)mkdir -p include/asm-m68k
+	$(Q)ln -fsn $(srctree)/include/asm-m68k/$(INCDIR) include/asm-m68k/arch
+else
+	$(Q)ln -fsn $(INCDIR) include/asm-m68k/arch
+endif
+	@echo '  SYMLINK include/asm-m68k/proc -> include/asm-m68k/proc-mcfv4e'
+ifneq ($(KBUILD_SRC),)
+	$(Q)mkdir -p include/asm-m68k
+	$(Q)ln -fsn $(srctree)/include/asm-m68k/proc-mcfv4e include/asm-m68k/proc
+else
+	$(Q)ln -fsn proc-mcfv4e include/asm-m68k/proc
+endif
+	@touch $@
+
+
+all: $(KBUILD_IMAGE)
+
+archprepare: maketools
+
+PHONY += maketools
+maketools: include/asm-m68k/.arch
+
+
+ifneq ($(board-y),)
+BOARD  := board/$(board-y)/
+else
+BOARD  :=
+endif
+
+ifneq ($(machine-y),)
+MACH  := arch/m68k/mach-$(machine-y)/
+else
+MACH  :=
+endif
+
+common-y += $(BOARD) $(MACH)
+common-y += arch/m68k/lib/ arch/m68k/cpu/
+
+lds-$(CONFIG_GENERIC_LINKER_SCRIPT)   := arch/m68k/lib/u-boot.lds
+lds-$(CONFIG_BOARD_LINKER_SCRIPT)     := $(BOARD)/u-boot.lds
+
+CLEAN_FILES    += arch/m68k/lib/u-boot.lds
+MRPROPER_FILES += include/asm-m68k/arch include/asm-m68k/proc