diff --git a/recipes-extended/m4projects/files/0001-DTSO-align-to-new-kernel-delivery-r3-rc4.patch b/recipes-extended/m4projects/files/0001-DTSO-align-to-new-kernel-delivery-r3-rc4.patch
new file mode 100644
index 0000000..0f514ee
--- /dev/null
+++ b/recipes-extended/m4projects/files/0001-DTSO-align-to-new-kernel-delivery-r3-rc4.patch
@@ -0,0 +1,628 @@
+From 56696e74c6de23f39c56a3eb114dfca4534e0ae8 Mon Sep 17 00:00:00 2001
+From: christophe montaud <christophe.montaud@st.com>
+Date: Wed, 3 Oct 2018 17:23:23 +0200
+Subject: [PATCH] DTSO: align to new kernel delivery r3-rc4
+
+DTBO: update pin config names
+DTBO: align to new kernel stm32mp157c-m4-srm.dtsi
+so
+DTBO: disable DMA at the end
+---
+ .../stm32mp157-dk/M4ResourcesForAllExamples.dtso   | 204 +++++++++---------
+ .../stm32mp157-ev/M4ResourcesForAllExamples.dtso   | 239 +++++++++++----------
+ 2 files changed, 234 insertions(+), 209 deletions(-)
+
+diff --git a/Utilities/DTSO/stm32mp157-dk/M4ResourcesForAllExamples.dtso b/Utilities/DTSO/stm32mp157-dk/M4ResourcesForAllExamples.dtso
+index 9a0e508..c0c9dd7 100644
+--- a/Utilities/DTSO/stm32mp157-dk/M4ResourcesForAllExamples.dtso
++++ b/Utilities/DTSO/stm32mp157-dk/M4ResourcesForAllExamples.dtso
+@@ -8,7 +8,7 @@
+ 	compatible = "st,stm32mp157";
+ 
+ 	fragment@0 {
+-		target = <&dma2>;
++		target = <&dac>;
+ 
+ 		__overlay__ {
+ 				status = "disabled";
+@@ -16,7 +16,7 @@
+ 	};
+ 
+ 	fragment@1 {
+-		target = <&dac>;
++		target = <&adc>;
+ 
+ 		__overlay__ {
+ 				status = "disabled";
+@@ -24,7 +24,7 @@
+ 	};
+ 
+ 	fragment@2 {
+-		target = <&adc>;
++		target = <&timers1>;
+ 
+ 		__overlay__ {
+ 				status = "disabled";
+@@ -32,7 +32,7 @@
+ 	};
+ 
+ 	fragment@3 {
+-		target = <&timers1>;
++		target = <&dma2>;
+ 
+ 		__overlay__ {
+ 				status = "disabled";
+@@ -44,7 +44,7 @@
+ 
+ 		__overlay__ {
+ 				dma-masters = <&dma1>;
+-				dma-channels = <8>;	
++				dma-channels = <8>;
+ 		};
+ 	};
+ 
+@@ -55,120 +55,132 @@
+ 			m4_system_resources {
+ 				status = "okay";
+ 
+-				m4_crc2: crc@4c00400 {
++				button {
+ 					compatible = "rproc-srm-dev";
+-					reg = <0x4c00400 0x400>;			
+-					clocks = <&rcc CRC2>;
++					interrupt-parent = <&gpioa>;
++					interrupts = <14 2>;
++					interrupt-names = "irq";
+ 					status = "okay";
+ 				};
+ 
+-				m4_cryp2: cryp@4c005000 {
++				m4_led: m4_led {
+ 					compatible = "rproc-srm-dev";
+-					reg = <0x4c005000 0x400>;
+-					clocks = <&rcc CRYP2>;
++					pinctrl-names = "rproc_default", "rproc_sleep";
++					pinctrl-0 = <&leds_orange_pins>;
++					pinctrl-1 = <&leds_orange_sleep_pins>;
+ 					status = "okay";
+ 				};
++			};
++		};
++	};
+ 
+-				m4_hash2: hash@4c002000 {
+-					compatible =  "rproc-srm-dev";
+-					reg = <0x4c002000 0x400>;
+-					clocks = <&rcc HASH2>;
+-					status = "okay";
+-				};
++	fragment@6 {
++		target = <&m4_crc2>;
+ 
+-				m4_rng2: rng@4c003000 {
+-					compatible = "rproc-srm-dev";
+-					reg = <0x4c003000 0x400>;
+-					clocks = <&rcc RNG2_K>;
+-					status = "okay";
+-				};
++		__overlay__ {
++			status = "okay";
++		};
++	};
+ 
+-				m4_uart7: serial@40018000 {
+-					compatible = "rproc-srm-dev";
+-					reg = <0x40018000 0x400>;			
+-					clocks = <&rcc UART7_K>;
+-					pinctrl-names = "default";
+-					pinctrl-0 = <&uart7_pins>;
+-					status = "okay";
+-				};
++	fragment@7 {
++		target = <&m4_cryp2>;
+ 
+-				m4_spi4: spi@44005000 {
+-					compatible = "rproc-srm-dev";
+-					reg = <0x44005000 0x400>;
+-					clocks = <&rcc SPI4_K>;
+-					pinctrl-names = "default";
+-					pinctrl-0 = <&spi4_pins_a>;
+-					status = "okay";
+-				};
++		__overlay__ {
++			status = "okay";
++		};
++	};
+ 
+-				m4_i2c5: i2c@40015000 {
+-					compatible = "rproc-srm-dev";
+-					reg = <0x40015000 0x400>;
+-					clocks = <&rcc I2C5_K>;
+-					pinctrl-names = "default";
+-					pinctrl-0 = <&i2c5_pins_a>;
+-					status = "okay";
+-				};
++	fragment@8 {
++		target = <&m4_hash2>;
+ 
+-				m4_timers2: timer@40000000 {
+-					compatible = "rproc-srm-dev";
+-					reg = <0x40000000 0x400>;
+-					clocks = <&rcc TIM2_K>;
+-					status = "okay";
+-				};
++		__overlay__ {
++			status = "okay";
++		};
++	};
+ 
+-				m4_timers1: timer@44000000 {
+-					compatible = "rproc-srm-dev";
+-					reg = <0x44000000 0x400>;
+-					clocks = <&rcc TIM1_K>;
+-					pinctrl-names = "default";
+-					pinctrl-0 = <&timer1_pins>;
+-					status = "okay";
+-				};
++	fragment@9 {
++		target = <&m4_rng2>;
+ 
+-				m4_dac: dac@40017000 {
+-					compatible = "rproc-srm-dev";
+-					reg = <0x40017000 0x400>;
+-					clocks = <&rcc DAC12>;
+-					status = "okay";
+-				};
++		__overlay__ {
++			status = "okay";
++		};
++	};
+ 
+-				m4_adc: adc@48003000 {
+-					compatible = "rproc-srm-dev";
+-					reg = <0x48003000 0x400>;
+-					vref-supply = <&vrefbuf>;	
+-					clocks = <&rcc ADC12>, <&rcc ADC12_K>;
+-					status = "okay";
+-				};
++	fragment@10 {
++		target = <&m4_uart7>;
+ 
+-				m4_dma2: dma@48001000 {
+-					compatible = "rproc-srm-dev";
+-					reg = <0x48001000 0x400>;
+-					clocks = <&rcc DMA2>;
+-					status = "okay";
+-				};
++		__overlay__ {
++			pinctrl-names = "rproc_default";
++			pinctrl-0 = <&uart7_pins>;
++			status = "okay";
++		};
++	};
+ 
+-				button {
+-					compatible = "rproc-srm-dev";
+-                    interrupt-parent = <&gpioa>;
+-                    interrupts = <14 2>;
+-                    interrupt-names = "irq";
+-                    status = "okay";
+-                };
++	fragment@11 {
++		target = <&m4_spi4>;
+ 
+-				m4_led: m4_led {
+-					compatible = "rproc-srm-dev";
+-					pinctrl-names = "default", "sleep";
+-					pinctrl-0 = <&leds_orange_pins>;
+-					pinctrl-1 = <&leds_orange_sleep_pins>;
+-					status = "okay";
+-				};
+-			};
++		__overlay__ {
++			pinctrl-names = "rproc_default";
++			pinctrl-0 = <&spi4_pins_a>;
++			status = "okay";
+ 		};
+ 	};
+ 
++	fragment@12 {
++		target = <&m4_i2c5>;
+ 
+-	fragment@6 {
++		__overlay__ {
++			pinctrl-names = "rproc_default";
++			pinctrl-0 = <&i2c5_pins_a>;
++			status = "okay";
++		};
++	};
++
++	fragment@13 {
++		target = <&m4_timers2>;
++
++		__overlay__ {
++			pinctrl-names = "rproc_default";
++			status = "okay";
++		};
++	};
++
++	fragment@14 {
++		target = <&m4_timers1>;
++
++		__overlay__ {
++			pinctrl-names = "rproc_default";
++			pinctrl-0 = <&timer1_pins>;
++			status = "okay";
++		};
++	};
++
++	fragment@15 {
++		target = <&m4_dac>;
++
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@16 {
++		target = <&m4_adc>;
++
++		__overlay__ {
++			vref-supply = <&vrefbuf>;
++			status = "okay";
++		};
++	};
++
++	fragment@17 {
++		target = <&m4_dma2>;
++
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@18 {
+ 		target = <&pinctrl>;
+ 		__overlay__ {
+ 
+diff --git a/Utilities/DTSO/stm32mp157-ev/M4ResourcesForAllExamples.dtso b/Utilities/DTSO/stm32mp157-ev/M4ResourcesForAllExamples.dtso
+index 37e73d1..84cf399 100644
+--- a/Utilities/DTSO/stm32mp157-ev/M4ResourcesForAllExamples.dtso
++++ b/Utilities/DTSO/stm32mp157-ev/M4ResourcesForAllExamples.dtso
+@@ -8,7 +8,7 @@
+ 	compatible = "st,stm32mp157";
+ 
+ 	fragment@0 {
+-		target = <&dma2>;
++		target = <&dac>;
+ 
+ 		__overlay__ {
+ 				status = "disabled";
+@@ -16,7 +16,7 @@
+ 	};
+ 
+ 	fragment@1 {
+-		target = <&dac>;
++		target = <&adc>;
+ 
+ 		__overlay__ {
+ 				status = "disabled";
+@@ -24,7 +24,7 @@
+ 	};
+ 
+ 	fragment@2 {
+-		target = <&adc>;
++		target = <&timers2>;
+ 
+ 		__overlay__ {
+ 				status = "disabled";
+@@ -32,7 +32,7 @@
+ 	};
+ 
+ 	fragment@3 {
+-		target = <&timers2>;
++		target = <&sai2b>;
+ 
+ 		__overlay__ {
+ 				status = "disabled";
+@@ -40,7 +40,7 @@
+ 	};
+ 
+ 	fragment@4 {
+-		target = <&sai2b>;
++		target = <&fmc2_nand>;
+ 
+ 		__overlay__ {
+ 				status = "disabled";
+@@ -48,7 +48,7 @@
+ 	};
+ 
+ 	fragment@5 {
+-		target = <&fmc2_nand>;
++		target = <&i2c5>;
+ 
+ 		__overlay__ {
+ 				status = "disabled";
+@@ -56,16 +56,15 @@
+ 	};
+ 
+ 	fragment@6 {
+-		target = <&dmamux1>;
++		target = <&qspi>;
+ 
+ 		__overlay__ {
+-				dma-masters = <&dma1>;
+-				dma-channels = <8>;	
++				status = "disabled";
+ 		};
+ 	};
+ 
+ 	fragment@7 {
+-		target = <&i2c5>;
++		target = <&dma2>;
+ 
+ 		__overlay__ {
+ 				status = "disabled";
+@@ -73,10 +72,11 @@
+ 	};
+ 
+ 	fragment@8 {
+-		target = <&qspi>;
++		target = <&dmamux1>;
+ 
+ 		__overlay__ {
+-				status = "disabled";
++				dma-masters = <&dma1>;
++				dma-channels = <8>;
+ 		};
+ 	};
+ 
+@@ -87,131 +87,144 @@
+ 			m4_system_resources {
+ 				status = "okay";
+ 
+-				m4_crc2: crc@4c00400 {
++
++				button {
+ 					compatible = "rproc-srm-dev";
+-					reg = <0x4c00400 0x400>;			
+-					clocks = <&rcc CRC2>;
++					interrupt-parent = <&gpioa>;
++					interrupts = <14 2>;
++					interrupt-names = "irq";
+ 					status = "okay";
+ 				};
+ 
+-				m4_cryp2: cryp@4c005000 {
++				m4_led: m4_led {
+ 					compatible = "rproc-srm-dev";
+-					reg = <0x4c005000 0x400>;
+-					clocks = <&rcc CRYP2>;
++					pinctrl-names = "rproc_default", "rproc_sleep";
++					pinctrl-0 = <&leds_orange_pins>;
++					pinctrl-1 = <&leds_orange_sleep_pins>;
+ 					status = "okay";
+ 				};
++			};
++		};
++	};
+ 
+-				m4_hash2: hash@4c002000 {
+-					compatible =  "rproc-srm-dev";
+-					reg = <0x4c002000 0x400>;
+-					clocks = <&rcc HASH2>;
+-					status = "okay";
+-				};
++	fragment@10 {
++		target = <&m4_crc2>;
+ 
+-				m4_rng2: rng@4c003000 {
+-					compatible = "rproc-srm-dev";
+-					reg = <0x4c003000 0x400>;
+-					clocks = <&rcc RNG2_K>;
+-					status = "okay";
+-				};
++		__overlay__ {
++			status = "okay";
++		};
++	};
+ 
+-				m4_usart3: serial@4000f000 {
+-					compatible = "rproc-srm-dev";
+-					reg = <0x4000f000 0x400>;			
+-					clocks = <&rcc USART3_K>;
+-					pinctrl-names = "default";
+-					pinctrl-0 = <&usart3_pins_a>;
+-					status = "okay";
+-				};
++	fragment@11 {
++		target = <&m4_cryp2>;
+ 
+-				m4_spi1: spi@44004000 {
+-					compatible = "rproc-srm-dev";
+-					reg = <0x44004000 0x400>;
+-					clocks = <&rcc SPI1_K>;
+-					pinctrl-names = "default";
+-					pinctrl-0 = <&spi1_pins_a>;
+-					status = "okay";
+-				};
++		__overlay__ {
++			status = "okay";
++		};
++	};
+ 
+-				m4_i2c5: i2c@40015000 {
+-					compatible = "rproc-srm-dev";
+-					reg = <0x40015000 0x400>;
+-					clocks = <&rcc I2C5_K>;
+-					pinctrl-names = "default";
+-					pinctrl-0 = <&i2c5_pins_a>;
+-					status = "okay";
+-				};
++	fragment@12 {
++		target = <&m4_hash2>;
+ 
+-				m4_timers2: timer@40000000 {
+-					compatible = "rproc-srm-dev";
+-					reg = <0x40000000 0x400>;
+-					pinctrl-names = "default";
+-					pinctrl-0 = <&pwm2_pins_a>;
+-					clocks = <&rcc TIM2_K>;
+-					status = "okay";
+-				};
++		__overlay__ {
++			status = "okay";
++		};
++	};
+ 
+-				m4_timers1: timer@44000000 {
+-					compatible = "rproc-srm-dev";
+-					reg = <0x44000000 0x400>;
+-					clocks = <&rcc TIM1_K>;
+-					pinctrl-names = "default";
+-					pinctrl-0 = <&pwm1_pins_a>;
+-					status = "okay";
+-				};
++	fragment@13 {
++		target = <&m4_rng2>;
+ 
+-				m4_dac: dac@40017000 {
+-					compatible = "rproc-srm-dev";
+-					reg = <0x40017000 0x400>;
+-					clocks = <&rcc DAC12>;
+-					status = "okay";
+-				};
++		__overlay__ {
++			status = "okay";
++		};
++	};
+ 
+-				m4_adc: adc@48003000 {
+-					compatible = "rproc-srm-dev";
+-					reg = <0x48003000 0x400>;
+-					vref-supply = <&vdda>;	
+-					clocks = <&rcc ADC12>, <&rcc ADC12_K>;
+-					status = "okay";
+-				};
++	fragment@14 {
++		target = <&m4_usart3>;
+ 
+-				m4_dma2: dma@48001000 {
+-					compatible = "rproc-srm-dev";
+-					reg = <0x48001000 0x400>;
+-					clocks = <&rcc DMA2>;
+-					status = "okay";
+-				};
++		__overlay__ {
++			pinctrl-names = "rproc_default";
++			pinctrl-0 = <&usart3_pins_a>;
++			status = "okay";
++		};
++	};
+ 
+-				m4_qspi: qspi@58003000 {
+-					compatible = "rproc-srm-dev";
+-					reg = <0x58003000  0x1000>;
+-					pinctrl-names = "default";
+-					pinctrl-0 = <&qspi_clk_pins_a &qspi_bk1_pins_a &qspi_bk2_pins_a>;
+-					clocks = <&rcc QSPI_K>;
+-					status = "okay";
+-				};
++	fragment@15 {
++		target = <&m4_spi1>;
+ 
+-				button {
+-					compatible = "rproc-srm-dev";
+-                    interrupt-parent = <&gpioa>;
+-                    interrupts = <14 2>;
+-                    interrupt-names = "irq";
+-                    status = "okay";
+-                };
++		__overlay__ {
++			pinctrl-names = "rproc_default";
++			pinctrl-0 = <&spi1_pins_a>;
++			status = "okay";
++		};
++	};
+ 
+-				m4_led: m4_led {
+-					compatible = "rproc-srm-dev";
+-					pinctrl-names = "default", "sleep";
+-					pinctrl-0 = <&leds_orange_pins>;
+-					pinctrl-1 = <&leds_orange_sleep_pins>;
+-					status = "okay";
+-				};
+-			};
++	fragment@16 {
++		target = <&m4_i2c5>;
++
++		__overlay__ {
++			pinctrl-names = "rproc_default";
++			pinctrl-0 = <&i2c5_pins_a>;
++			status = "okay";
+ 		};
+ 	};
+ 
++	fragment@17 {
++		target = <&m4_timers2>;
+ 
+-	fragment@10 {
++		__overlay__ {
++			pinctrl-names = "rproc_default";
++			pinctrl-0 = <&pwm2_pins_a>;
++			status = "okay";
++		};
++	};
++
++	fragment@18 {
++		target = <&m4_timers1>;
++
++		__overlay__ {
++			pinctrl-names = "rproc_default";
++			pinctrl-0 = <&pwm1_pins_a>;
++			status = "okay";
++		};
++	};
++
++	fragment@19 {
++		target = <&m4_dac>;
++
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@20 {
++		target = <&m4_adc>;
++
++		__overlay__ {
++			vref-supply = <&vdda>;
++			status = "okay";
++		};
++	};
++
++	fragment@21 {
++		target = <&m4_dma2>;
++
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@22 {
++		target = <&m4_qspi>;
++
++		__overlay__ {
++			pinctrl-names = "rproc_default";
++			pinctrl-0 = <&qspi_clk_pins_a &qspi_bk1_pins_a &qspi_bk2_pins_a>;
++			status = "okay";
++		};
++	};
++
++	fragment@23 {
+ 		target = <&pinctrl>;
+ 		__overlay__ {
+ 
+-- 
+2.7.4
+
diff --git a/recipes-extended/m4projects/files/Makefile.stm32 b/recipes-extended/m4projects/files/Makefile.stm32
new file mode 100644
index 0000000..ba6f8bb
--- /dev/null
+++ b/recipes-extended/m4projects/files/Makefile.stm32
@@ -0,0 +1,82 @@
+CC := $(CROSS_COMPILE)gcc
+LD := $(CROSS_COMPILE)ld
+AS := $(CROSS_COMPILE)ar
+STRIP := $(CROSS_COMPILE)strip
+OBJCOPY := $(CROSS_COMPILE)objcopy
+SIZE := $(CROSS_COMPILE)size
+
+ifeq ($(CPU_TYPE),M4)
+COMMONFLAGS += -mcpu=cortex-m4 -mthumb -mfloat-abi=hard -mfpu=fpv4-sp-d16
+endif
+ifeq ($(CPU_TYPE),A7)
+COMMONFLAGS += -mcpu=cortex-a7 -mthumb -mfloat-abi=hard -mfpu=neon-vfpv4
+endif
+
+# Project settings
+PROJ_DIR  := $(PROJECT_DIR)
+PROJ_NAME := $(BIN_NAME)
+
+# Output
+OUT	  := $(PROJ_DIR)/out
+BUILD_OUT := $(OUT)/$(BUILD_CONFIG)
+
+# Bin
+TESTELF := $(BUILD_OUT)/$(PROJ_NAME).elf
+TESTBIN := $(BUILD_OUT)/$(PROJ_NAME).bin
+
+# CFLAGS rules
+CFLAGS	+= $(COMMONFLAGS)
+CFLAGS	+= -Os
+CFLAGS	+= -Wall -fmessage-length=0 -ffunction-sections -c -fmessage-length=0 -MMD -MP
+#CFLAGS	+= -Wno-unused-function
+#CFLAGS	+= -Wno-unused-variable
+CFLAGS	+= -g3
+#CFLAGS += -g
+#CFLAGS += -Werror
+
+# LDFLAGS rules
+LDFLAGS	+= $(COMMONFLAGS)
+LDFLAGS	+= -specs=nosys.specs -specs=nano.specs
+LDFLAGS	+= -Wl,-Map=$(BUILD_OUT)/output.map -Wl,--gc-sections -lm
+#LDFLAGS	+= -D__MEM_START__=0x2ffc2000 -D__MEM_END__=0x2fff3000 -D__MEM_SIZE__=0x31000
+#debug LINKER
+#LDFLAGS += -Wl,--verbose
+
+
+# Get config code from the project to compile (source, cflags, ldflags, ldlibs)
+include $(BUILD_OUT)/conf/config.in
+
+# Build rule
+define c-compilation-rule
+$1: $2 $(LDSCRIPT)
+	@echo $2 \< $1
+	@mkdir -pv `dirname $1`
+	$(CC) $(CFLAGS) -c $2 -o $1
+COBJ+=$1
+endef
+
+# generate a compilation rule for each source file
+$(foreach r,$(CSRC), $(eval $(call c-compilation-rule,$(BUILD_OUT)/$(r).o,$(r))))
+
+# Include dep files
+#DEPS= $(foreach file,$(CSRC),$(file).d)
+#-include $(DEPS)
+
+# Build elf output
+$(TESTELF): $(COBJ)
+	@echo link $@
+	$(CC)  $(LDFLAGS) -o $@.sym $^ $(LDLIBS) -T$(LDSCRIPT)
+	@cp $@.sym $@
+	@$(STRIP) -g $@
+	@$(SIZE) $@
+
+# Build bin output
+$(TESTBIN): $(TESTELF)
+	@$(OBJCOPY) -O binary $(TESTELF) $(TESTBIN)
+
+clean:
+	rm -rf $(COBJ) $(TESTELF) $(TESTBIN)
+
+all: $(TESTBIN)
+
+
diff --git a/recipes-extended/m4projects/files/parse_project_config.py b/recipes-extended/m4projects/files/parse_project_config.py
new file mode 100644
index 0000000..1d37762
--- /dev/null
+++ b/recipes-extended/m4projects/files/parse_project_config.py
@@ -0,0 +1,179 @@
+import os
+import sys
+import xml.etree.ElementTree as ET
+from sys import argv as arg
+
+#
+# the goal is to parse SW4STM32 project configs files to get
+#    list of files to compile
+#    cflags
+#    ldflags
+
+
+print "start"
+
+# arg1: path of the project
+prj=arg[1]
+# arg2: name of the build configuration
+buildconfig=arg[2]
+# arg3: root of the compilation
+myroot=arg[3]
+
+confdir=myroot+"/out/"+buildconfig+"/conf"
+
+print "prj: "+prj
+print "myroot: "+myroot
+print "confdir: "+confdir
+print "buildconfig: "+buildconfig
+
+os.chdir(prj)
+
+proj_tree = ET.parse(".project")
+cproj_tree = ET.parse(".cproject")
+
+#os.chdir(myroot)
+
+if os.path.exists(confdir)!=True:
+	os.mkdir(confdir)
+
+if prj.find("(")!=-1:
+	print "bad prj path"
+	sys.stderr.write("bad prj path: "+prj+"\n")
+	exit(1)
+
+#
+# convert path and checks that path is valid
+#
+def fullpath(filename):
+	# get absolute path
+	p=os.path.abspath(filename);
+
+	# workaround: there is a mistake in some projects
+	p=p.replace("STM32_USB_HOST_Library","STM32_USB_Host_Library")
+	# some path contain windows style
+	p=p.replace("\\","/")
+	# containts space at the end
+	p=p.replace(" ","")
+
+	# check if path is valid
+	#print "check path: "+p
+	if os.path.exists(p)!=True:
+			print "prj: "+prj
+			print "original path: "+filename
+			sys.stderr.write("error check path: "+p+" fails\n")
+			exit(1);
+
+	return p
+
+
+#
+# get the source code file list
+#
+print "file list"
+
+f=open(confdir+"/config.in", 'w')
+
+root = proj_tree.getroot()
+
+f.write("CSRC += \\\n")
+
+
+for i in root.iter('link'):
+	a=i.find('locationURI')
+	if a==None:
+		a=i.find('location')
+	if a==None:
+		print "could not find any file"
+		exit(1)
+
+	if a.text is None:
+		print "no text"
+	else:
+		#print "text:"+a.text
+		temp=a.text
+
+		if ((temp.find(".txt")==-1) & (temp.find(".gdb")==-1) & (temp.find(".launch")==-1) & (temp.find(".sh")==-1) & (temp.find("README")==-1)):
+			temp=temp.replace("PARENT-1-PROJECT_LOC/", "../")
+			temp=temp.replace("PARENT-2-PROJECT_LOC/", "../../")
+			temp=temp.replace("PARENT-3-PROJECT_LOC/", "../../../")
+			temp=temp.replace("PARENT-4-PROJECT_LOC/", "../../../../")
+			temp=temp.replace("PARENT-5-PROJECT_LOC/", "../../../../../")
+			temp=temp.replace("PARENT-6-PROJECT_LOC/", "../../../../../../")
+			temp=temp.replace("PARENT-7-PROJECT_LOC/", "../../../../../../../")
+			temp=temp.replace("PROJECT_LOC/", "../")
+
+			#print temp
+			temp=fullpath(temp)
+
+			f.write(temp+" \\\n")
+
+f.write("\n")
+
+
+cflags=""
+ldlibs=""
+ldscript=""
+
+root = cproj_tree.getroot()
+
+count=0
+for j in root.iter('configuration'):
+	temp=j.get('name')
+	if temp == buildconfig:
+		for i in j.iter('option'):
+			a=i.get('superClass')
+			if a == 'gnu.c.compiler.option.include.paths':
+				for j in i.iter('listOptionValue'):
+					temp=j.get('value')
+					if temp != "":
+						temp=temp.replace("\\","/")
+						#workaround remove first occurency of "../"
+						temp=temp.replace("../", "",1)
+						temp=fullpath(temp)
+						#print temp
+						cflags=cflags+" -I"+temp+" \\\n"
+
+			if a == 'gnu.c.compiler.option.preprocessor.def.symbols':
+				for j in i.iter('listOptionValue'):
+					temp=j.get('value')
+					if temp != "":
+						#print temp
+						cflags=cflags+" -D"+temp+" \\\n"
+
+			if a == 'fr.ac6.managedbuild.tool.gnu.cross.c.linker.script':
+				temp=i.get('value')
+				temp=temp.replace("../", "",1)
+				temp=fullpath(temp)
+				#print temp
+				ldscript=temp
+
+			if a == 'gnu.c.link.option.paths':
+				for j in i.iter('listOptionValue'):
+					temp=j.get('value')
+					temp=temp.replace("../", "",1)
+					temp=fullpath(temp)
+					ldlibs=ldlibs+" -L"+temp+"/"
+
+			if a == 'gnu.c.link.option.libs':
+				for j in i.iter('listOptionValue'):
+					temp=j.get('value')
+					ldlibs=ldlibs+" -l"+temp
+
+
+#workaround for STM327x6G_EVAL
+#cflags=cflags+" -DUSE_IOEXPANDER"
+
+print "cflags="+cflags
+f.write("CFLAGS += "+cflags+"\n")
+f.write("\n")
+
+print "ldlibs="+ldlibs
+f.write("LDLIBS += "+ldlibs+"\n")
+f.write("\n")
+
+f.write("LDSCRIPT += "+ldscript+"\n")
+f.write("\n")
+
+f.close();
+
+print "exit"
diff --git a/recipes-extended/m4projects/files/st-m4firmware-load-default.sh b/recipes-extended/m4projects/files/st-m4firmware-load-default.sh
new file mode 100644
index 0000000..28263d4
--- /dev/null
+++ b/recipes-extended/m4projects/files/st-m4firmware-load-default.sh
@@ -0,0 +1,75 @@
+#!/bin/sh -
+
+autodetect_board() {
+if [ ! -d /proc/device-tree/ ];
+then
+    echo "Proc Device tree are not available, Could not detect on which board we are" > /dev/kmsg
+    exit 1
+fi
+
+#search on device tree compatible entry the board type
+if $(grep -q "stm32mp157c-ev" /proc/device-tree/compatible) ;
+then
+    board="STM32MP15_M4_EVAL"
+else if $(grep -q "stm32mp157c-dk" /proc/device-tree/compatible) ;
+then
+    board="STM32MP15_M4_DISCO"
+else
+    echo "Board is not an EVAL or a DISCO BOARD" > /dev/kmsg
+    exit 1
+fi
+fi
+}
+
+copy_default_M4_fw() {
+#Test if ${board}_@default_fw@.elf is existing
+if [ -z "$(find @userfs_mount_point@/examples/* -name ${board}_@default_fw@.elf)" ]; then
+    echo "The default copro example ${board}_@default_fw@ doesn't exist" > /dev/kmsg
+    exit 1
+else
+    #copy ${board}_@default_fw@.elf into /lib/firmware/
+    cp $(find @userfs_mount_point@/examples/* -name ${board}_@default_fw@.elf) /lib/firmware/.
+fi
+}
+
+firmware_load_start() {
+# Change the name of the firmware
+echo -n ${board}_@default_fw@.elf > /sys/class/remoteproc/remoteproc0/firmware
+
+# Change path to found firmware
+#echo -n /home/root >/sys/module/firmware_class/parameters/path
+
+# Restart firmware
+echo start >/sys/class/remoteproc/remoteproc0/state
+
+echo "Booting fw image ${board}_@default_fw@.elf" > /dev/kmsg
+}
+
+firmware_load_stop() {
+# Stop the firmware
+echo stop >/sys/class/remoteproc/remoteproc0/state
+echo "Stoping fw image ${board}_@default_fw@.elf" > /dev/kmsg
+}
+
+board=""
+autodetect_board
+
+case "$1" in
+start)
+    copy_default_M4_fw
+    firmware_load_stop
+    firmware_load_start
+    ;;
+stop)
+    firmware_load_stop
+    ;;
+restart)
+    firmware_load_stop
+    firmware_load_start
+    ;;
+*)
+    echo "HELP: $0 [start|stop|restart]"
+    ;;
+esac
+
+exit 0
diff --git a/recipes-extended/m4projects/files/st-m4firmware-load.service b/recipes-extended/m4projects/files/st-m4firmware-load.service
new file mode 100755
index 0000000..f82a50e
--- /dev/null
+++ b/recipes-extended/m4projects/files/st-m4firmware-load.service
@@ -0,0 +1,11 @@
+[Unit]
+Description=ST Load M4 firmware via remoteproc
+After=systemd-modules-load.service
+
+[Service]
+Type=oneshot
+RemainAfterExit=yes
+ExecStart=/sbin/st-m4firmware-load-default.sh start
+
+[Install]
+WantedBy=sysinit.target
diff --git a/recipes-extended/m4projects/m4projects-stm32mp1.bb b/recipes-extended/m4projects/m4projects-stm32mp1.bb
new file mode 100644
index 0000000..e7b834c
--- /dev/null
+++ b/recipes-extended/m4projects/m4projects-stm32mp1.bb
@@ -0,0 +1,55 @@
+SUMMARY = "STM32MP1 Firmware examples for CM4"
+LICENSE = "Proprietary"
+
+PROJECTS_LIST_EV1 = " \
+	'STM32MP157C-EV1/Examples/ADC/ADC_SingleConversion_TriggerTimer_DMA' \
+	'STM32MP157C-EV1/Examples/Cortex/CORTEXM_MPU' \
+	'STM32MP157C-EV1/Examples/CRC/CRC_UserDefinedPolynomial' \
+	'STM32MP157C-EV1/Examples/CRYP/CRYP_AES_DMA' \
+	'STM32MP157C-EV1/Examples/DAC/DAC_SimpleConversion' \
+	'STM32MP157C-EV1/Examples/DMA/DMA_FIFOMode' \
+	'STM32MP157C-EV1/Examples/GPIO/GPIO_EXTI' \
+	'STM32MP157C-EV1/Examples/HASH/HASH_SHA224SHA256_DMA' \
+	'STM32MP157C-EV1/Examples/I2C/I2C_TwoBoards_ComDMA' \
+	'STM32MP157C-EV1/Examples/I2C/I2C_TwoBoards_ComIT' \
+	'STM32MP157C-EV1/Examples/QSPI/QSPI_ReadWrite_IT' \
+	'STM32MP157C-EV1/Examples/SPI/SPI_FullDuplex_ComDMA_Master' \
+	'STM32MP157C-EV1/Examples/SPI/SPI_FullDuplex_ComDMA_Slave' \
+	'STM32MP157C-EV1/Examples/TIM/TIM_DMABurst' \
+	'STM32MP157C-EV1/Examples/UART/UART_TwoBoards_ComIT' \
+	'STM32MP157C-EV1/Examples/WWDG/WWDG_Example' \
+	'STM32MP157C-EV1/Applications/OpenAMP/OpenAMP_raw' \
+	'STM32MP157C-EV1/Applications/OpenAMP/OpenAMP_TTY_echo' \
+	'STM32MP157C-EV1/Applications/OpenAMP/OpenAMP_TTY_echo_wakeup' \
+	'STM32MP157C-EV1/Applications/FreeRTOS/FreeRTOS_ThreadCreation' \
+	'STM32MP157C-EV1/Applications/CoproSync/CoproSync_ShutDown' \
+	'STM32MP157C-EV1/Demonstrations/AI_Character_Recognition' \
+"
+PROJECTS_LIST_DK2 = " \
+	'STM32MP157C-DK2/Examples/ADC/ADC_SingleConversion_TriggerTimer_DMA' \
+	'STM32MP157C-DK2/Examples/Cortex/CORTEXM_MPU' \
+	'STM32MP157C-DK2/Examples/CRC/CRC_UserDefinedPolynomial' \
+	'STM32MP157C-DK2/Examples/CRYP/CRYP_AES_DMA' \
+	'STM32MP157C-DK2/Examples/DMA/DMA_FIFOMode' \
+	'STM32MP157C-DK2/Examples/GPIO/GPIO_EXTI' \
+	'STM32MP157C-DK2/Examples/HASH/HASH_SHA224SHA256_DMA' \
+	'STM32MP157C-DK2/Examples/I2C/I2C_TwoBoards_ComIT' \
+	'STM32MP157C-DK2/Examples/LPTIM/LPTIM_PulseCounter' \
+	'STM32MP157C-DK2/Examples/SPI/SPI_FullDuplex_ComDMA_Master' \
+	'STM32MP157C-DK2/Examples/SPI/SPI_FullDuplex_ComDMA_Slave' \
+	'STM32MP157C-DK2/Examples/SPI/SPI_FullDuplex_ComIT_Master' \
+	'STM32MP157C-DK2/Examples/SPI/SPI_FullDuplex_ComIT_Slave' \
+	'STM32MP157C-DK2/Examples/TIM/TIM_DMABurst' \
+	'STM32MP157C-DK2/Examples/UART/UART_TwoBoards_ComDMA' \
+	'STM32MP157C-DK2/Examples/UART/UART_TwoBoards_ComIT' \
+	'STM32MP157C-DK2/Examples/WWDG/WWDG_Example' \
+	'STM32MP157C-DK2/Applications/OpenAMP/OpenAMP_raw' \
+	'STM32MP157C-DK2/Applications/OpenAMP/OpenAMP_TTY_echo' \
+	'STM32MP157C-DK2/Applications/OpenAMP/OpenAMP_TTY_echo_wakeup' \
+	'STM32MP157C-DK2/Applications/FreeRTOS/FreeRTOS_ThreadCreation' \
+	'STM32MP157C-DK2/Demonstrations/AI_Character_Recognition' \
+"
+
+PROJECTS_LIST = "${PROJECTS_LIST_EV1} ${PROJECTS_LIST_DK2}"
+
+require m4projects.inc
diff --git a/recipes-extended/m4projects/m4projects.inc b/recipes-extended/m4projects/m4projects.inc
new file mode 100644
index 0000000..d8ba64d
--- /dev/null
+++ b/recipes-extended/m4projects/m4projects.inc
@@ -0,0 +1,161 @@
+SUMMARY = "STM32MP1 Firmware examples for CM4"
+LICENSE = " \
+    Apache-2.0 \
+    & MIT \
+    & BSD-3-Clause \
+    "
+LIC_FILES_CHKSUM = "file://License.md;md5=6b267c73760fea024ffbc6049db473ba"
+
+COMPATIBLE_MACHINE = "(stm32mpcommon)"
+
+PACKAGE_ARCH = "${MACHINE_ARCH}"
+
+SRC_URI = "git://github.com/STMicroelectronics/STM32CubeMP1;protocol=https;branch=master"
+SRCREV  = "66ec26f6422283fe5cd25a32babf925836df9399"
+
+PV = "1.0.0"
+
+S = "${WORKDIR}/git"
+
+B = "${WORKDIR}/build"
+# for external source support with devtools
+EXTERNALSRC_BUILD_pn-${PN} = "${WORKDIR}/build"
+
+# M4 firwmare build file
+SRC_URI += "file://Makefile.stm32"
+SRC_URI += "file://parse_project_config.py"
+
+# default service for systemd
+inherit systemd update-rc.d
+SRC_URI += "file://st-m4firmware-load-default.sh"
+SRC_URI += "file://st-m4firmware-load.service"
+
+DEPENDS += " gcc-arm-none-eabi-native "
+
+# Define default board reference for M4
+M4_BOARDS ?= "STM32MP157C-EV1 STM32MP157C-DK2"
+
+# Init default copro example to load/execute
+DEFAULT_COPRO_FIRMWARE ?= ""
+
+# Use gcc bare toolchain
+export CROSS_COMPILE = "${RECIPE_SYSROOT_NATIVE}/${datadir}/gcc-arm-none-eabi/bin/arm-none-eabi-"
+export CPU_TYPE = "M4"
+export BUILD_CONFIG = "Debug"
+
+RDEPENDS_${PN}-userfs += "busybox"
+PACKAGES += "${PN}-userfs"
+
+USERFS_ROOTPATH = "/local/Cube-M4-examples"
+FILES_${PN}-userfs = "${prefix}${USERFS_ROOTPATH}"
+
+do_compile() {
+    # Compile M4 firmwares listed in bb file. They can be for eval or disco board as specified in bb file
+    for BIN_MACHINE in ${M4_BOARDS}; do
+        bbnote "Compile M4 project for : ${BIN_MACHINE}"
+        for project in ${PROJECTS_LIST} ; do
+            bbnote "Parsing M4 project : ${project}"
+
+            if [ "$(echo ${project} | cut -d'/' -f1)" = "${BIN_MACHINE}" ]; then
+                bbnote "Selected M4 project : ${project}"
+
+                unset LDFLAGS CFLAGS CPPFLAGS CFLAGS_ASM
+                # Export variables as used by Makefile
+                export BIN_NAME=$(basename ${project})
+                export PROJECT_DIR=${B}/${project}
+                export PROJECT_APP="${S}/Projects/${project}/SW4STM32/${BIN_NAME}"
+
+                bbnote "BIN_NAME     : ${BIN_NAME}"
+                bbnote "PROJECT_DIR  : ${PROJECT_DIR}"
+                bbnote "PROJECT_APP  : ${PROJECT_APP}"
+                bbnote "BUILD_CONFIG : ${BUILD_CONFIG}"
+                bbnote "CPU_TYPE     : ${CPU_TYPE}"
+                bbnote "SOURCE       : ${S}"
+
+                mkdir -p ${PROJECT_DIR}/out/${BUILD_CONFIG}
+
+                # parse project to get file list and build flags
+                python ${WORKDIR}/parse_project_config.py ${PROJECT_APP} ${BUILD_CONFIG} ${PROJECT_DIR}
+
+                # make clean
+                bbnote "Cleaning M4 project : ${project}"
+                oe_runmake -f ${WORKDIR}/Makefile.stm32 clean
+
+                # make build
+                bbnote "Building M4 project : ${project}"
+                oe_runmake -f ${WORKDIR}/Makefile.stm32 all
+            fi
+        done
+    done
+}
+
+do_install() {
+    # Install M4 firmwares, scripts and README in userfs:
+    # <userfs>/local/Cube-M4-examples/${project} (ie STM32MP157C-EV1/Applications/OpenAMP/OpenAMP_TTY_echo)
+    #                        |-- fw_cortex_m4.sh
+    #                        |-- README
+    #                        |--lib
+    #                             |--firmware
+    #                                  |-- ELF file for impacted board (ie OpenAMP_TTY_echo.elf)
+    for BIN_MACHINE in ${M4_BOARDS}; do
+        for project in ${PROJECTS_LIST} ; do
+            if [ "$(echo ${project} | cut -d'/' -f1)" = "${BIN_MACHINE}" ]; then
+                # BIN_NAME=$(echo ${project} | cut -d'/' -f4)
+                BIN_NAME=$(basename ${project})
+
+                # Install M4 firmwares
+                install -d ${D}${prefix}${USERFS_ROOTPATH}/${project}/lib/firmware/
+                install -m 0755 ${B}/${project}/out/${BUILD_CONFIG}/${BIN_NAME}.elf ${D}${prefix}${USERFS_ROOTPATH}/${project}/lib/firmware/
+
+                # Install sh and README files if any for each example
+                if [ -e ${S}/Projects/${project}/Remoteproc/fw_cortex_m4.sh ]; then
+                    install -m 0755 ${S}/Projects/${project}/Remoteproc/fw_cortex_m4.sh ${D}${prefix}${USERFS_ROOTPATH}/${project}
+                fi
+                if [ -e ${S}/Projects/${project}/Remoteproc/README ]; then
+                    install -m 0755 ${S}/Projects/${project}/Remoteproc/README ${D}${prefix}${USERFS_ROOTPATH}/${project}
+                fi
+            fi
+        done
+    done
+
+    # Install sh script to load/execute DEFAULT_COPRO_FIRMWARE @boot up
+    if [ -n "${DEFAULT_COPRO_FIRMWARE}" ]; then
+        # Install systemd service
+        install -d ${D}${sysconfdir}/init.d/
+        install -d ${D}${base_sbindir}/
+        install -m 0755 ${WORKDIR}/st-m4firmware-load-default.sh ${D}${sysconfdir}/init.d/st-m4firmware-load-default.sh
+        install -m 0755 ${WORKDIR}/st-m4firmware-load-default.sh ${D}${base_sbindir}/st-m4firmware-load-default.sh
+
+        sed -i -e "s:@default_fw@:${DEFAULT_COPRO_FIRMWARE}:" \
+        ${D}${sysconfdir}/init.d/st-m4firmware-load-default.sh
+        sed -i -e "s:@default_fw@:${DEFAULT_COPRO_FIRMWARE}:" \
+        ${D}${base_sbindir}/st-m4firmware-load-default.sh
+
+        sed -i -e "s:@userfs_mount_point@:${STM32MP_USERFS_MOUNTPOINT_IMAGE}:" \
+        ${D}${sysconfdir}/init.d/st-m4firmware-load-default.sh
+        sed -i -e "s:@userfs_mount_point@:${STM32MP_USERFS_MOUNTPOINT_IMAGE}:" \
+        ${D}${base_sbindir}/st-m4firmware-load-default.sh
+    fi
+
+    # install systemd service for all machines configurations
+    if ${@bb.utils.contains('DISTRO_FEATURES','systemd','true','false',d)}; then
+        install -d ${D}${systemd_unitdir}/system
+        install -m 644 ${WORKDIR}/st-m4firmware-load.service ${D}/${systemd_unitdir}/system
+    fi
+}
+
+# -----------------------------------------------------------
+# specific for service: start copro m4 firwmare at boot time
+
+SYSTEMD_PACKAGES += " m4projects-stm32mp1 "
+SYSTEMD_SERVICE_${PN} = "st-m4firmware-load.service"
+SYSTEMD_AUTO_ENABLE_${PN} = "disable"
+
+INITSCRIPT_NAME = "st-m4firmware-load-default.sh"
+INITSCRIPT_PARAMS = "stop 22 5 3 ."
+
+INHIBIT_PACKAGE_DEBUG_SPLIT = "1"
+INHIBIT_PACKAGE_STRIP = "1"
+INHIBIT_SYSROOT_STRIP = "1"
+
+FILES_${PN} += "${nonarch_base_libdir}/firmware ${sysconfdir}/init.d ${systemd_unitdir}/system"