4 files changed, 39 insertions, 12 deletions
diff --git a/tools/cmake/cpu/cortex-m3.cmake b/tools/cmake/cpu/cortex-m3.cmake
index b740ee44c..f6f5a62f8 100644
--- a/tools/cmake/cpu/cortex-m3.cmake
+++ b/tools/cmake/cpu/cortex-m3.cmake
@@ -1,10 +1,16 @@
 if (TOOLCHAIN STREQUAL "gcc")
-  list(APPEND TOOLCHAIN_COMMON_FLAGS
+  set(TOOLCHAIN_COMMON_FLAGS
     -mthumb
     -mcpu=cortex-m3
     )
 
   set(FREERTOS_PORT GCC_ARM_CM3 CACHE INTERNAL "")
-else ()
-  # TODO support IAR
+
+elseif (TOOLCHAIN STREQUAL "iar")
+  set(TOOLCHAIN_COMMON_FLAGS
+    --cpu cortex-m3
+    )
+
+  set(FREERTOS_PORT IAR_ARM_CM3 CACHE INTERNAL "")
+
 endif ()
diff --git a/tools/cmake/cpu/cortex-m33.cmake b/tools/cmake/cpu/cortex-m33.cmake
index fda277010..7ebaf1748 100644
--- a/tools/cmake/cpu/cortex-m33.cmake
+++ b/tools/cmake/cpu/cortex-m33.cmake
@@ -1,5 +1,5 @@
 if (TOOLCHAIN STREQUAL "gcc")
-  list(APPEND TOOLCHAIN_COMMON_FLAGS
+  set(TOOLCHAIN_COMMON_FLAGS
     -mthumb
     -mcpu=cortex-m33
     -mfloat-abi=hard
@@ -7,6 +7,13 @@ if (TOOLCHAIN STREQUAL "gcc")
     )
 
   set(FREERTOS_PORT GCC_ARM_CM33_NTZ_NONSECURE CACHE INTERNAL "")
-else ()
-  # TODO support IAR
+
+elseif (TOOLCHAIN STREQUAL "iar")
+  set(TOOLCHAIN_COMMON_FLAGS
+    --cpu cortex-m33
+    --fpu VFPv5-SP
+    )
+
+  set(FREERTOS_PORT IAR_ARM_CM4F CACHE INTERNAL "")
+
 endif ()
diff --git a/tools/cmake/cpu/cortex-m4.cmake b/tools/cmake/cpu/cortex-m4.cmake
index 5a2d16c05..a0cf3498f 100644
--- a/tools/cmake/cpu/cortex-m4.cmake
+++ b/tools/cmake/cpu/cortex-m4.cmake
@@ -1,5 +1,5 @@
 if (TOOLCHAIN STREQUAL "gcc")
-  list(APPEND TOOLCHAIN_COMMON_FLAGS
+  set(TOOLCHAIN_COMMON_FLAGS
     -mthumb
     -mcpu=cortex-m4
     -mfloat-abi=hard
@@ -7,6 +7,13 @@ if (TOOLCHAIN STREQUAL "gcc")
     )
 
   set(FREERTOS_PORT GCC_ARM_CM4F CACHE INTERNAL "")
-else ()
-  # TODO support IAR
+
+elseif (TOOLCHAIN STREQUAL "iar")
+  set(TOOLCHAIN_COMMON_FLAGS
+    --cpu cortex-m4
+    --fpu VFPv4
+    )
+
+  set(FREERTOS_PORT IAR_ARM_CM4F CACHE INTERNAL "")
+
 endif ()
diff --git a/tools/cmake/cpu/cortex-m7.cmake b/tools/cmake/cpu/cortex-m7.cmake
index 481c86bc5..3e5f7f44b 100644
--- a/tools/cmake/cpu/cortex-m7.cmake
+++ b/tools/cmake/cpu/cortex-m7.cmake
@@ -1,5 +1,5 @@
 if (TOOLCHAIN STREQUAL "gcc")
-  list(APPEND TOOLCHAIN_COMMON_FLAGS
+  set(TOOLCHAIN_COMMON_FLAGS
     -mthumb
     -mcpu=cortex-m7
     -mfloat-abi=hard
@@ -7,6 +7,13 @@ if (TOOLCHAIN STREQUAL "gcc")
     )
 
   set(FREERTOS_PORT GCC_ARM_CM7 CACHE INTERNAL "")
-else ()
-  # TODO support IAR
+
+elseif (TOOLCHAIN STREQUAL "iar")
+  set(TOOLCHAIN_COMMON_FLAGS
+    --cpu cortex-m7
+    --fpu VFPv5_D16
+    )
+
+  set(FREERTOS_PORT IAR_ARM_CM7 CACHE INTERNAL "")
+
 endif ()