add raspi2 and raspi3 BSP

bsp/raspberry-pi/raspi2/rtconfig.py

@@ -0,0 +1,53 @@
+import os
+
+# toolchains options
+ARCH        ='arm'
+CPU         ='cortex-a7'
+CROSS_TOOL  ='gcc'
+
+if os.getenv('RTT_ROOT'):
+    RTT_ROOT = os.getenv('RTT_ROOT')
+else:
+    RTT_ROOT = r'../../..'
+
+if os.getenv('RTT_CC'):
+    CROSS_TOOL = os.getenv('RTT_CC')
+
+PLATFORM    = 'gcc'
+EXEC_PATH   = r'/opt/gcc-arm-none-eabi-5_4-2016q3/bin'
+
+if os.getenv('RTT_EXEC_PATH'):
+    EXEC_PATH = os.getenv('RTT_EXEC_PATH')
+
+BUILD = 'debug'
+
+if PLATFORM == 'gcc':
+    # toolchains
+    PREFIX = 'arm-none-eabi-'
+    CC      = PREFIX + 'gcc'
+    CXX     = PREFIX + 'g++'
+    AS      = PREFIX + 'gcc'
+    AR      = PREFIX + 'ar'
+    LINK    = PREFIX + 'gcc'
+    TARGET_EXT = 'elf'
+    SIZE    = PREFIX + 'size'
+    OBJDUMP = PREFIX + 'objdump'
+    OBJCPY  = PREFIX + 'objcopy'
+
+    DEVICE = ' -mfpu=neon-vfpv4 -mfloat-abi=softfp -march=armv7-a -mtune=cortex-a7 -ftree-vectorize -ffast-math'
+    CFLAGS = DEVICE + ' -Wall'
+    AFLAGS = ' -c' + ' -x assembler-with-cpp -D__ASSEMBLY__'
+    LFLAGS  = DEVICE + ' -nostartfiles -Wl,--gc-sections,-Map=rtthread.map,-cref,-u,system_vectors -T link.lds'
+    CPATH   = ''
+    LPATH   = ''
+
+    if BUILD == 'debug':
+        CFLAGS += ' -O0 -gdwarf-2'
+        AFLAGS += ' -gdwarf-2'
+    else:
+        CFLAGS += ' -O2'
+
+    CXXFLAGS = CFLAGS
+
+DUMP_ACTION = OBJDUMP + ' -D -S $TARGET > rtt.asm\n'
+POST_ACTION = OBJCPY + ' -O binary $TARGET kernel7.img\n' + SIZE + ' $TARGET \n'