mulle: Initial import of Eistec Mulle board.

Initially supports only Mulles with serial number > 220 (due to missing
MK60DN256ZVLL10 support in k60).

See also: https://github.com/RIOT-OS/RIOT/wiki/Board%3A-Mulle

Signed-off-by: Joakim Gebart <joakim.gebart@eistec.se>

boards/mulle/Makefile

@@ -0,0 +1,4 @@
+# tell the Makefile.base which module to build
+MODULE = $(BOARD)_base
+
+include $(RIOTBASE)/Makefile.base

boards/mulle/Makefile.dep

@@ -0,0 +1,8 @@
+ifneq (,$(filter defaulttransceiver,$(USEMODULE)))
+    USEMODULE += at86rf231
+    ifeq (,$(filter netdev_base,$(USEMODULE)))
+        USEMODULE += transceiver
+    endif
+endif
+# The Mulle uses NVRAM to store persistent variables, such as boot count.
+USEMODULE += nvram_spi

boards/mulle/Makefile.features

@@ -0,0 +1,13 @@
+FEATURES_PROVIDED = \
+    transceiver \
+    periph_gpio \
+    periph_uart \
+    periph_spi \
+    periph_i2c \
+    periph_pwm \
+    periph_adc \
+    periph_rtc \
+    periph_random \
+    periph_cpuid \
+    cpp \
+    #

boards/mulle/Makefile.include

@@ -0,0 +1,259 @@
+# define the cpu used by the Mulle board
+export CPU = k60
+
+### CPU part number (must have a specific linker script for each part)
+# Note that MK60DN256ZVLL10 (version 1.x) and MK60DN256VLL10 (version 2.x, no Z)
+# only differ in some register locations etc, not in the actual memory layout,
+# so it is safe to use the same linker script for both version 1.x and version
+# 2.x silicon.
+# The linker script needs to know the flash and RAM sizes of the device.
+
+export GDBPORT ?= 3333
+
+# MULLE_SERIAL is used to select which specific Mulle board we are compiling for.
+# This was called MULLE_BOARD_SERIAL_NUMBER previously, renamed because
+# MULLE_BOARD_SERIAL_NUMBER is too long to type.
+ifdef MULLE_SERIAL
+  ifeq "200" "$(word 1, $(sort 200 $(MULLE_SERIAL)))"
+    # >= 100
+    ifneq "220" "$(word 1, $(sort 220 $(MULLE_SERIAL)))"
+      # < 220
+      CPU_MODEL = K60DN256ZVLL10
+    else
+      # >= 220
+      CPU_MODEL = K60DN512VLL10
+    endif
+  endif
+  CFLAGS += -DMULLE_SERIAL=$(MULLE_SERIAL)
+endif
+
+ifeq ($(CPU_MODEL),)
+  CPU_MODEL = K60DN512VLL10
+endif
+
+export CPU_MODEL
+
+# Host OS name
+OS := $(shell uname)
+
+# OpenOCD settings for Mulle board.
+# Try to determine which version of the OpenOCD config file we should use.
+# Specify PROGRAMMER_VERSION or PROGRAMMER_SERIAL to choose a specific programmer board.
+ifeq ($(PROGRAMMER_VERSION),)
+  ifneq ($(PROGRAMMER_SERIAL),)
+    # Makefile-way of comparing numbers, using lexicographical sorting since we don't have any arithmetic comparisons.
+    # Programmers with serial 100 -- 148 are version 0.60
+    # Programmers with serial 301 -- 330 are version 0.70
+    ifeq "100" "$(word 1, $(sort 100 $(PROGRAMMER_SERIAL)))"
+      # >= 100
+      ifneq "149" "$(word 1, $(sort 149 $(PROGRAMMER_SERIAL)))"
+        # < 149
+        PROGRAMMER_VERSION = 0.60
+      else
+        # >= 149
+        PROGRAMMER_VERSION = 0.70
+      endif
+    endif
+  endif
+  # Default to version 0.60 programmer for now.
+  PROGRAMMER_VERSION ?= 0.60
+endif
+
+OOCD_BOARD_FLAGS = -f '$(RIOTBOARD)/$(BOARD)/dist/openocd/mulle-programmer-$(PROGRAMMER_VERSION).conf'
+
+# Add serial matching command
+ifneq ($(PROGRAMMER_SERIAL),)
+  OOCD_BOARD_FLAGS += -c 'ftdi_serial $(PROGRAMMER_SERIAL)'
+
+  ifeq ($(PORT),)
+    # try to find tty name by serial number, only works on Linux currently.
+    ifeq ($(OS),Linux)
+      PORT :=$(shell $(RIOTBOARD)/dist/tools/ftdi/find-tty.sh $(PROGRAMMER_SERIAL))
+    endif
+  endif
+endif
+
+ifeq ($(PORT),)
+    ifeq ($(OS),Linux)
+      PORT := /dev/ttyUSB0
+    else ifeq ($(OS),Darwin)
+      PORT := $(shell ls -1 /dev/tty.SLAB_USBtoUART* | head -n 1)
+    endif
+endif
+
+# TODO: add support for windows as host platform
+ifeq ($(PORT),)
+  $(info CAUTION: No terminal port for your host system found!)
+endif
+export PORT
+
+# Default optimization level, possible to override from command line.
+OPTIMIZATION ?= -Os
+
+# Default debug level
+DEBUG_CFLAGS ?= -g3 -ggdb
+
+# Target triple for the build. Use arm-none-eabi if you are unsure.
+export TARGET_TRIPLE ?= arm-none-eabi
+
+# Toolchain prefix, defaults to target triple followed by a dash, you will most likely not need to touch this.
+export PREFIX  ?= $(if $(TARGET_TRIPLE),$(TARGET_TRIPLE)-)
+export GDBPREFIX ?= $(PREFIX)
+
+# define tools used for building the project
+export OPENOCD ?= openocd
+export GDB ?= $(GDBPREFIX)gdb
+export CC = $(PREFIX)gcc
+export CXX = $(PREFIX)g++
+export AR = $(PREFIX)ar
+export AS = $(PREFIX)as
+export LINK = $(PREFIX)gcc
+export SIZE = $(PREFIX)size
+export OBJCOPY = $(PREFIX)objcopy
+export TERMPROG ?= $(RIOTBASE)/dist/tools/pyterm/pyterm
+export FLASHER ?= $(OPENOCD)
+export DEBUGGER ?= $(GDB)
+export DEBUGSERVER ?= $(OPENOCD)
+export RESET ?= $(OPENOCD)
+
+# define build specific options
+CPU_USAGE = -mcpu=cortex-m4
+FPU_USAGE = -mfloat-abi=soft -msoft-float
+export CFLAGS += \
+    $(DEBUG_CFLAGS) \
+    -std=gnu99 \
+    $(OPTIMIZATION) \
+    -Wall -Wstrict-prototypes -Werror=implicit-function-declaration \
+    $(CPU_USAGE) \
+    $(FPU_USAGE) \
+    -mlittle-endian \
+    -mthumb \
+    -fno-common \
+    -fshort-enums \
+    -ffunction-sections \
+    -fdata-sections \
+    -fno-builtin \
+    -fno-strict-aliasing \
+    -fsigned-char \
+    #
+export CXXFLAGS += \
+    -ffunction-sections \
+    -fdata-sections \
+    -fno-builtin \
+    #
+export ASFLAGS += \
+    $(DEBUG_CFLAGS) \
+    $(CPU_USAGE) \
+    $(FPU_USAGE) \
+    -mlittle-endian \
+    #
+export LINKFLAGS += \
+    $(DEBUG_CFLAGS) \
+    -std=gnu99 \
+    $(CPU_USAGE) \
+    $(FPU_USAGE) \
+    -mlittle-endian \
+    -static \
+    -mthumb \
+    -nostartfiles \
+    -Wl,--fatal-warnings \
+    #
+export LINKFLAGS += -L$(LINKERSCRIPTPATH) -T$(LINKERSCRIPT)
+export OFLAGS ?= -O binary
+
+ifdef BUILD_WITH_CLANG
+ifneq ($(BUILD_WITH_CLANG),0)
+export CFLAGS += -target $(TARGET_TRIPLE) -ffreestanding
+export CC       = clang
+export CXX      = clang++
+export LINK     = clang
+export LLVMPREFIX ?= llvm-
+export AS       = $(LLVMPREFIX)as
+export AR       = $(LLVMPREFIX)ar
+export NM       = $(LLVMPREFIX)nm
+# There is no LLVM linker yet, use binutils.
+#export LINKER   = $(LLVMPREFIX)ld
+# objcopy does not have a clear substitute in LLVM
+#export OBJCOPY  = $(LLVMPREFIX)objcopy
+export OBJDUMP  = $(LLVMPREFIX)objdump
+# LLVM lacks a binutils strip tool as well...
+#export STRIP    = $(LLVMPREFIX)strip
+export SIZE     = $(LLVMPREFIX)size
+
+# Since Clang is not installed as a separate instance for each crossdev target
+# we need to tell it where to look for platform specific includes (Newlib
+# headers instead of Linux/Glibc headers.)
+# On GCC this is done when building the cross compiler toolchain so we do not
+# actually need to specify the include paths for system includes.
+# Ubuntu gcc-arm-embedded toolchain (https://launchpad.net/gcc-arm-embedded)
+# places newlib headers in several places, but the primary source seem to be
+# /etc/alternatives/gcc-arm-none-eabi-include
+# Gentoo crossdev places newlib headers in /usr/arm-none-eabi/include
+# Ubuntu also seem to put a copy of the newlib headers in the same place as
+# Gentoo crossdev, but we prefer to look at /etc/alternatives first.
+NEWLIB_INCLUDES ?= \
+  -isystem /etc/alternatives/gcc-$(TARGET_TRIPLE)-include \
+  -isystem /usr/$(TARGET_TRIPLE)/include \
+  #
+
+endif
+endif
+
+export INCLUDES += $(NEWLIB_INCLUDES)
+
+
+FFLAGS ?= $(OOCD_BOARD_FLAGS)
+FFLAGS += \
+    -c 'tcl_port 0' \
+    -c 'gdb_port 0' \
+    -c 'telnet_port 0' \
+    -c 'init' \
+    -c 'targets' \
+    -c 'reset halt' \
+    -c 'flash write_image erase bin/$(BOARD)/$(APPLICATION).elf 0x00000000 elf' \
+    -c 'verify_image bin/$(BOARD)/$(APPLICATION).elf' \
+    -c 'reset run' \
+    -c 'shutdown'
+
+export FFLAGS
+
+DEBUGSERVER_FLAGS ?= $(OOCD_BOARD_FLAGS)
+DEBUGSERVER_FLAGS += \
+    -c 'tcl_port 0' \
+    -c 'gdb_port $(GDBPORT)' \
+    -c 'telnet_port 0' \
+    -c 'init' \
+    -c 'targets' \
+    -c 'reset halt'
+
+export DEBUGSERVER_FLAGS
+
+RESET_FLAGS ?= $(OOCD_BOARD_FLAGS)
+RESET_FLAGS += \
+    -c 'tcl_port 0' \
+    -c 'gdb_port 0' \
+    -c 'telnet_port 0' \
+    -c 'init' \
+    -c 'reset run' \
+    -c 'shutdown'
+
+export RESET_FLAGS
+
+DEBUGGER_FLAGS ?= -x $(RIOTBOARD)/$(BOARD)/dist/gdb.conf
+DEBUGGER_FLAGS += \
+    -ex 'tar ext :$(GDBPORT)' \
+    $(BINDIR)/$(APPLICATION).elf
+
+export DEBUGGER_FLAGS
+
+export TERMFLAGS += -p "$(PORT)"
+
+# use newlib nano-specs if available
+ifeq ($(shell $(LINK) -specs=nano.specs -E - 2>/dev/null >/dev/null </dev/null ; echo $$?),0)
+export LINKFLAGS += -specs=nano.specs -lc -lnosys
+endif
+
+# export board specific includes to the global includes-listing
+export INCLUDES += -I$(RIOTBOARD)/$(BOARD)/include
+
+include $(RIOTBOARD)/$(BOARD)/Makefile.dep