Add a makefile for generic Cortex-A targets. (#2405)
BUG=322777625
diff --git a/tensorflow/lite/micro/tools/make/targets/cortex_a_generic_makefile.inc b/tensorflow/lite/micro/tools/make/targets/cortex_a_generic_makefile.inc
new file mode 100644
index 0000000..4ca9142
--- /dev/null
+++ b/tensorflow/lite/micro/tools/make/targets/cortex_a_generic_makefile.inc
@@ -0,0 +1,63 @@
+# Copyright 2023 The TensorFlow Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ==============================================================================
+
+# Generic Makefile target for ARM Cortex A builds.
+
+FPU := neon
+FLOAT_ABI := softfp
+
+GCC_TARGET_ARCH :=
+GCC_TARGET_CPU :=
+
+ifeq ($(TARGET_ARCH), armv7-a)
+ GCC_TARGET_ARCH := armv7-a
+
+else ifeq ($(TARGET_ARCH), cortex-a32)
+ GCC_TARGET_CPU := cortex-a32
+
+else
+ $(error "TARGET_ARCH=$(TARGET_ARCH) is not supported")
+endif
+
+TARGET_TOOLCHAIN_PREFIX := arm-none-eabi-
+
+ifneq ($(GCC_TARGET_ARCH),)
+ FLAGS_GCC += -march=$(GCC_TARGET_ARCH)
+else ifneq ($(GCC_TARGET_CPU),)
+ FLAGS_GCC += -mcpu=$(GCC_TARGET_CPU)
+endif
+
+CXXFLAGS += $(FLAGS_GCC)
+CCFLAGS += $(FLAGS_GCC)
+
+PLATFORM_FLAGS = \
+ -DTF_LITE_MCU_DEBUG_LOG \
+ -mfloat-abi=$(FLOAT_ABI) \
+ -mfpu=$(FPU) \
+ -funsigned-char \
+ -mlittle-endian \
+ -Wno-type-limits \
+ -Wno-unused-private-field \
+ -fomit-frame-pointer \
+ -MD
+
+ifneq ($(PIC),)
+ PLATFORM_FLAGS += -fpic
+endif
+
+# Common + C/C++ flags
+CXXFLAGS += $(PLATFORM_FLAGS)
+CCFLAGS += $(PLATFORM_FLAGS)
+
