diff --git a/sdk/bsp/common.mk b/sdk/bsp/bsp.mk
similarity index 80%
rename from sdk/bsp/common.mk
rename to sdk/bsp/bsp.mk
index 7b39a96..409a5f4 100644
--- a/sdk/bsp/common.mk
+++ b/sdk/bsp/bsp.mk
@@ -10,22 +10,22 @@ RISCV_AR      := $(abspath $(RISCV_TOOLS_PATH)/$(RISCV_TOOLS_PREFIX)ar)
 RISCV_OBJCOPY := $(abspath $(RISCV_TOOLS_PATH)/$(RISCV_TOOLS_PREFIX)objcopy)
 RISCV_READELF := $(abspath $(RISCV_TOOLS_PATH)/$(RISCV_TOOLS_PREFIX)readelf)
 
-BIN_TO_MEM    := $(COMMON_DIR)/../../tools/BinToMem.py
+BIN_TO_MEM    := $(BSP_DIR)/../../tools/BinToMem.py
 
 .PHONY: all
 all: $(TARGET)
 
-ASM_SRCS += $(COMMON_DIR)/start.S
-ASM_SRCS += $(COMMON_DIR)/trap_entry.S
-C_SRCS += $(COMMON_DIR)/init.c
-C_SRCS += $(COMMON_DIR)/trap_handler.c
-C_SRCS += $(COMMON_DIR)/lib/utils.c
-C_SRCS += $(COMMON_DIR)/lib/xprintf.c
-C_SRCS += $(COMMON_DIR)/lib/uart.c
+ASM_SRCS += $(BSP_DIR)/start.S
+ASM_SRCS += $(BSP_DIR)/trap_entry.S
+C_SRCS += $(BSP_DIR)/init.c
+C_SRCS += $(BSP_DIR)/trap_handler.c
+C_SRCS += $(BSP_DIR)/lib/utils.c
+C_SRCS += $(BSP_DIR)/lib/xprintf.c
+C_SRCS += $(BSP_DIR)/lib/uart.c
 
-LINKER_SCRIPT := $(COMMON_DIR)/link.lds
+LINKER_SCRIPT := $(BSP_DIR)/link.lds
 
-INCLUDES += -I$(COMMON_DIR)
+INCLUDES += -I$(BSP_DIR)
 
 LDFLAGS += -T $(LINKER_SCRIPT) -nostartfiles -Wl,--gc-sections -Wl,--check-sections
 
diff --git a/sdk/examples/FreeRTOS/Demo/tinyriscv_GCC/Makefile b/sdk/examples/FreeRTOS/Demo/tinyriscv_GCC/Makefile
index 354fc2f..2bb3701 100644
--- a/sdk/examples/FreeRTOS/Demo/tinyriscv_GCC/Makefile
+++ b/sdk/examples/FreeRTOS/Demo/tinyriscv_GCC/Makefile
@@ -23,6 +23,5 @@ C_SRCS := \
 	../../Source/portable/RISC-V/port.c \
 
 
-COMMON_DIR = ../../../../bsp
-TOOLCHAIN_DIR = ../../../../..
-include ../../../../bsp/common.mk
+BSP_DIR = ../../../../bsp
+include ../../../../bsp/bsp.mk
diff --git a/sdk/examples/coremark/Makefile b/sdk/examples/coremark/Makefile
index 2c42c50..d7da2d0 100644
--- a/sdk/examples/coremark/Makefile
+++ b/sdk/examples/coremark/Makefile
@@ -16,6 +16,5 @@ CFLAGS := -O2 -fno-common -funroll-loops -finline-functions --param max-inline-i
 CFLAGS += -DFLAGS_STR=\""$(CFLAGS)"\"
 CFLAGS += -DITERATIONS=10000 -DPERFORMANCE_RUN=1
 
-COMMON_DIR = ../../bsp
-TOOLCHAIN_DIR = ../../..
-include ../../bsp/common.mk
+BSP_DIR = ../../bsp
+include ../../bsp/bsp.mk
diff --git a/sdk/examples/gpio/Makefile b/sdk/examples/gpio/Makefile
index c187e30..0fb2498 100644
--- a/sdk/examples/gpio/Makefile
+++ b/sdk/examples/gpio/Makefile
@@ -16,6 +16,5 @@ C_SRCS := \
 	main.c \
 
 
-COMMON_DIR = ../../bsp
-TOOLCHAIN_DIR = ../../..
-include ../../bsp/common.mk
+BSP_DIR = ../../bsp
+include ../../bsp/bsp.mk
diff --git a/sdk/examples/simple/Makefile b/sdk/examples/simple/Makefile
index 059d25a..1e74d4a 100644
--- a/sdk/examples/simple/Makefile
+++ b/sdk/examples/simple/Makefile
@@ -16,6 +16,5 @@ C_SRCS := \
 	main.c \
 
 
-COMMON_DIR = ../../bsp
-TOOLCHAIN_DIR = ../../..
-include ../../bsp/common.mk
+BSP_DIR = ../../bsp
+include ../../bsp/bsp.mk
diff --git a/sdk/examples/timer_int/Makefile b/sdk/examples/timer_int/Makefile
index 1860901..d398e00 100644
--- a/sdk/examples/timer_int/Makefile
+++ b/sdk/examples/timer_int/Makefile
@@ -16,6 +16,5 @@ C_SRCS := \
 	main.c \
 
 
-COMMON_DIR = ../../bsp
-TOOLCHAIN_DIR = ../../..
-include ../../bsp/common.mk
+BSP_DIR = ../../bsp
+include ../../bsp/bsp.mk
diff --git a/sdk/examples/uart_rx/Makefile b/sdk/examples/uart_rx/Makefile
index aa23595..429bd3c 100644
--- a/sdk/examples/uart_rx/Makefile
+++ b/sdk/examples/uart_rx/Makefile
@@ -16,6 +16,5 @@ C_SRCS := \
 	main.c \
 
 
-COMMON_DIR = ../../bsp
-TOOLCHAIN_DIR = ../../..
-include ../../bsp/common.mk
+BSP_DIR = ../../bsp
+include ../../bsp/bsp.mk
diff --git a/sdk/examples/uart_tx/Makefile b/sdk/examples/uart_tx/Makefile
index 8cc6358..bc6db9c 100644
--- a/sdk/examples/uart_tx/Makefile
+++ b/sdk/examples/uart_tx/Makefile
@@ -16,6 +16,5 @@ C_SRCS := \
 	main.c \
 
 
-COMMON_DIR = ../../bsp
-TOOLCHAIN_DIR = ../../..
-include ../../bsp/common.mk
+BSP_DIR = ../../bsp
+include ../../bsp/bsp.mk