diff --git a/drivers/bl602_driver/cpu_flags.cmake b/drivers/bl602_driver/cpu_flags.cmake
index 590844c7..2b1b26bc 100644
--- a/drivers/bl602_driver/cpu_flags.cmake
+++ b/drivers/bl602_driver/cpu_flags.cmake
@@ -1,12 +1,7 @@
 SET(CPU_ARCH "RISCV")
 SET(MCPU "e24")
-if(${SUPPORT_FLOAT} STREQUAL "y")
 SET(MARCH "rv32imafc")
 SET(MABI "ilp32f")
-else()
-SET(MARCH "rv32imac")
-SET(MABI "ilp32")
-endif()
 
 list(APPEND GLOBAL_C_FLAGS -march=${MARCH} -mabi=${MABI})
 list(APPEND GLOBAL_LD_FLAGS -march=${MARCH} -mabi=${MABI})