diff --git a/boot/cypress/toolchains.mk b/boot/cypress/toolchains.mk
new file mode 100644
index 0000000..11c1413
--- /dev/null
+++ b/boot/cypress/toolchains.mk
@@ -0,0 +1,107 @@
+################################################################################
+# \file toolchains.mk
+# \version 1.0
+#
+# \brief
+# Makefile to describe supported toolchains for Cypress MCUBoot based applications.
+#
+################################################################################
+# \copyright
+# Copyright 2018-2019 Cypress Semiconductor Corporation
+# SPDX-License-Identifier: Apache-2.0
+#
+# 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.
+################################################################################
+
+include common_libs.mk
+
+# Compilers
+GCC_ARM	:= 1
+IAR		:= 2
+ARM		:= 3
+OTHER 	:= 4
+
+ifeq ($(MAKEINFO), 1)
+$(info $(COMPILER))
+endif
+# Detect host OS to make resolving compiler pathes easier
+UNAME_S := $(shell uname -s)
+ifeq ($(UNAME_S), Darwin)
+	HOST_OS = osx
+else
+	ifeq ($(UNAME_S), Linux)
+		HOST_OS = linux
+	else
+		HOST_OS = win
+	endif
+endif
+
+# Path to the compiler installation
+# NOTE: Absolute pathes for now for the sake of development
+ifeq ($(HOST_OS), win)
+	ifeq ($(COMPILER), GCC_ARM)
+		TOOLCHAIN_PATH ?= c:/Users/$(USERNAME)/ModusToolbox/tools_2.2/gcc
+		MY_TOOLCHAIN_PATH:=$(subst \,/,$(TOOLCHAIN_PATH))
+		TOOLCHAIN_PATH := $(MY_TOOLCHAIN_PATH)
+		GCC_PATH := $(TOOLCHAIN_PATH)
+		# executables
+		CC := "$(GCC_PATH)/bin/arm-none-eabi-gcc"
+		LD := $(CC)
+	endif
+
+else ifeq ($(HOST_OS), osx)
+	TOOLCHAIN_PATH ?= /opt/gcc-arm-none-eabi
+	GCC_PATH := $(TOOLCHAIN_PATH)
+
+	CC := "$(GCC_PATH)/bin/arm-none-eabi-gcc"
+	LD := $(CC)
+
+else ifeq ($(HOST_OS), linux)
+	TOOLCHAIN_PATH ?= /opt/gcc-arm-none-eabi
+	GCC_PATH := $(TOOLCHAIN_PATH)
+	# executables
+	CC := "$(GCC_PATH)/bin/arm-none-eabi-gcc"
+	LD := $(CC)
+endif
+
+PDL_ELFTOOL := "hal/tools/$(HOST_OS)/elf/cymcuelftool"
+
+OBJDUMP  := "$(GCC_PATH)/bin/arm-none-eabi-objdump"
+OBJCOPY  := "$(GCC_PATH)/bin/arm-none-eabi-objcopy"
+
+# Set flags for toolchain executables
+ifeq ($(COMPILER), GCC_ARM)
+	# set build-in compiler flags
+	CFLAGS_COMMON := -mcpu=cortex-$(CORE_SIFFX) -mthumb -mfloat-abi=soft -fno-stack-protector -ffunction-sections -fdata-sections -ffat-lto-objects -fstrict-aliasing -g -Wall -Wextra
+	ifeq ($(BUILDCFG), Debug)
+		CFLAGS_COMMON += -Og -g3
+	else ifeq ($(BUILDCFG), Release)
+		CFLAGS_COMMON += -Os -g
+	else
+$(error BUILDCFG : '$(BUILDCFG)' is not supported)
+	endif
+	# add defines and includes
+	CFLAGS := $(CFLAGS_COMMON) $(INCLUDES)
+	CC_DEPEND = -MD -MP -MF
+
+	LDFLAGS_COMMON := -mcpu=cortex-$(CORE_SIFFX) -mthumb -specs=nano.specs -ffunction-sections -fdata-sections  -Wl,--gc-sections -L "$(GCC_PATH)/lib/gcc/arm-none-eabi/7.2.1/thumb/v6-m" -ffat-lto-objects -g --enable-objc-gc
+	ifeq ($(BUILDCFG), Debug)
+		LDFLAGS_COMMON += -Og
+	else ifeq ($(BUILDCFG), Release)
+		LDFLAGS_COMMON += -Os
+	else
+$(error BUILDCFG : '$(BUILDCFG)' is not supported)
+	endif
+	LDFLAGS_NANO := -L "$(GCC_PATH)/arm-none-eabi/lib/thumb/v6-m"
+	LDFLAGS := $(LDFLAGS_COMMON) $(LDFLAGS_NANO)
+endif