diff --git a/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi-3.18/0001-dts-add-overlay-for-pitft22.patch b/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi-3.18/0001-dts-add-overlay-for-pitft22.patch
deleted file mode 100644
index fa73599..0000000
--- a/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi-3.18/0001-dts-add-overlay-for-pitft22.patch
+++ /dev/null
@@ -1,110 +0,0 @@
-From 2f44861e2a2d651a9aa62a75343a032fee33e93b Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Petter=20Mab=C3=A4cker?= <petter@technux.se>
-Date: Fri, 8 Jan 2016 09:02:44 +0100
-Subject: [PATCH] dts: add overlay for pitft22 in linux 3.18
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-Upstream-Status: Pending
-
-Add the pitft22 overlay from adafruit Adafruit-Pi-Kernel-o-Matic repo:
-https://github.com/adafruit/Adafruit-Pi-Kernel-o-Matic
-
-Signed-off-by: Petter Mabäcker <petter@technux.se>
----
- arch/arm/boot/dts/overlays/Makefile            |  1 +
- arch/arm/boot/dts/overlays/pitft22-overlay.dts | 69 ++++++++++++++++++++++++++
- 2 files changed, 70 insertions(+)
- create mode 100755 arch/arm/boot/dts/overlays/pitft22-overlay.dts
-
-diff --git a/arch/arm/boot/dts/overlays/Makefile b/arch/arm/boot/dts/overlays/Makefile
-index c766616..1eaaf81 100644
---- a/arch/arm/boot/dts/overlays/Makefile
-+++ b/arch/arm/boot/dts/overlays/Makefile
-@@ -27,6 +27,7 @@ dtb-$(RPI_DT_OVERLAYS) += mcp2515-can0-overlay.dtb
- dtb-$(RPI_DT_OVERLAYS) += mmc-overlay.dtb
- dtb-$(RPI_DT_OVERLAYS) += mz61581-overlay.dtb
- dtb-$(RPI_DT_OVERLAYS) += piscreen-overlay.dtb
-+dtb-$(RPI_DT_OVERLAYS) += pitft22-overlay.dtb
- dtb-$(RPI_DT_OVERLAYS) += pitft28-resistive-overlay.dtb
- dtb-$(RPI_DT_OVERLAYS) += pps-gpio-overlay.dtb
- dtb-$(RPI_DT_OVERLAYS) += rpi-dac-overlay.dtb
-diff --git a/arch/arm/boot/dts/overlays/pitft22-overlay.dts b/arch/arm/boot/dts/overlays/pitft22-overlay.dts
-new file mode 100755
-index 0000000..894ba22
---- /dev/null
-+++ b/arch/arm/boot/dts/overlays/pitft22-overlay.dts
-@@ -0,0 +1,69 @@
-+/*
-+ * Device Tree overlay for pitft by Adafruit
-+ *
-+ */
-+
-+/dts-v1/;
-+/plugin/;
-+
-+/ {
-+        compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
-+
-+        fragment@0 {
-+                target = <&spi0>;
-+                __overlay__ {
-+                        status = "okay";
-+
-+                        spidev@0{
-+                                status = "disabled";
-+                        };
-+
-+                        spidev@1{
-+                                status = "disabled";
-+                        };
-+                };
-+        };
-+
-+        fragment@1 {
-+                target = <&gpio>;
-+                __overlay__ {
-+                        pitft_pins: pitft_pins {
-+                                brcm,pins = <25>;
-+                                brcm,function = <1>; /* out */
-+                                brcm,pull = <0>; /* none */
-+                        };
-+                };
-+        };
-+
-+        fragment@2 {
-+                target = <&spi0>;
-+                __overlay__ {
-+                        /* needed to avoid dtc warning */
-+                        #address-cells = <1>;
-+                        #size-cells = <0>;
-+
-+                        pitft: pitft@0{
-+                                compatible = "ilitek,ili9340";
-+                                reg = <0>;
-+                                pinctrl-names = "default";
-+                                pinctrl-0 = <&pitft_pins>;
-+
-+                                spi-max-frequency = <32000000>;
-+                                rotate = <90>;
-+                                fps = <25>;
-+                                bgr;
-+                                buswidth = <8>;
-+                                dc-gpios = <&gpio 25 0>;
-+                                debug = <0>;
-+                        };
-+
-+                };
-+        };
-+
-+        __overrides__ {
-+                speed =   <&pitft>,"spi-max-frequency:0";
-+                rotate =  <&pitft>,"rotate:0";
-+                fps =     <&pitft>,"fps:0";
-+                debug =   <&pitft>,"debug:0";
-+        };
-+};
--- 
-1.9.1
-
diff --git a/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi-4.1/0001-dts-add-overlay-for-pitft22.patch b/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi-4.1/0001-dts-add-overlay-for-pitft22.patch
deleted file mode 100644
index e6e0a84..0000000
--- a/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi-4.1/0001-dts-add-overlay-for-pitft22.patch
+++ /dev/null
@@ -1,110 +0,0 @@
-From a28bd410022b32a64e208f04b45add6326990332 Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Petter=20Mab=C3=A4cker?= <petter@technux.se>
-Date: Fri, 8 Jan 2016 09:02:44 +0100
-Subject: [PATCH] dts: add overlay for pitft22
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-Upstream-Status: Pending
-
-Add the pitft22 overlay from adafruit Adafruit-Pi-Kernel-o-Matic repo:
-https://github.com/adafruit/Adafruit-Pi-Kernel-o-Matic
-
-Signed-off-by: Petter Mabäcker <petter@technux.se>
----
- arch/arm/boot/dts/overlays/Makefile            |  1 +
- arch/arm/boot/dts/overlays/pitft22-overlay.dts | 69 ++++++++++++++++++++++++++
- 2 files changed, 70 insertions(+)
- create mode 100755 arch/arm/boot/dts/overlays/pitft22-overlay.dts
-
-diff --git a/arch/arm/boot/dts/overlays/Makefile b/arch/arm/boot/dts/overlays/Makefile
-index 1a60e9c..a2535a2 100644
---- a/arch/arm/boot/dts/overlays/Makefile
-+++ b/arch/arm/boot/dts/overlays/Makefile
-@@ -37,6 +37,7 @@ dtb-$(RPI_DT_OVERLAYS) += mmc-overlay.dtb
- dtb-$(RPI_DT_OVERLAYS) += mz61581-overlay.dtb
- dtb-$(RPI_DT_OVERLAYS) += piscreen-overlay.dtb
- dtb-$(RPI_DT_OVERLAYS) += piscreen2r-overlay.dtb
-+dtb-$(RPI_DT_OVERLAYS) += pitft22-overlay.dtb
- dtb-$(RPI_DT_OVERLAYS) += pitft28-capacitive-overlay.dtb
- dtb-$(RPI_DT_OVERLAYS) += pitft28-resistive-overlay.dtb
- dtb-$(RPI_DT_OVERLAYS) += pps-gpio-overlay.dtb
-diff --git a/arch/arm/boot/dts/overlays/pitft22-overlay.dts b/arch/arm/boot/dts/overlays/pitft22-overlay.dts
-new file mode 100755
-index 0000000..894ba22
---- /dev/null
-+++ b/arch/arm/boot/dts/overlays/pitft22-overlay.dts
-@@ -0,0 +1,69 @@
-+/*
-+ * Device Tree overlay for pitft by Adafruit
-+ *
-+ */
-+
-+/dts-v1/;
-+/plugin/;
-+
-+/ {
-+        compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
-+
-+        fragment@0 {
-+                target = <&spi0>;
-+                __overlay__ {
-+                        status = "okay";
-+
-+                        spidev@0{
-+                                status = "disabled";
-+                        };
-+
-+                        spidev@1{
-+                                status = "disabled";
-+                        };
-+                };
-+        };
-+
-+        fragment@1 {
-+                target = <&gpio>;
-+                __overlay__ {
-+                        pitft_pins: pitft_pins {
-+                                brcm,pins = <25>;
-+                                brcm,function = <1>; /* out */
-+                                brcm,pull = <0>; /* none */
-+                        };
-+                };
-+        };
-+
-+        fragment@2 {
-+                target = <&spi0>;
-+                __overlay__ {
-+                        /* needed to avoid dtc warning */
-+                        #address-cells = <1>;
-+                        #size-cells = <0>;
-+
-+                        pitft: pitft@0{
-+                                compatible = "ilitek,ili9340";
-+                                reg = <0>;
-+                                pinctrl-names = "default";
-+                                pinctrl-0 = <&pitft_pins>;
-+
-+                                spi-max-frequency = <32000000>;
-+                                rotate = <90>;
-+                                fps = <25>;
-+                                bgr;
-+                                buswidth = <8>;
-+                                dc-gpios = <&gpio 25 0>;
-+                                debug = <0>;
-+                        };
-+
-+                };
-+        };
-+
-+        __overrides__ {
-+                speed =   <&pitft>,"spi-max-frequency:0";
-+                rotate =  <&pitft>,"rotate:0";
-+                fps =     <&pitft>,"fps:0";
-+                debug =   <&pitft>,"debug:0";
-+        };
-+};
--- 
-1.9.1
-
diff --git a/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi-4.1/0002-vmcs-Remove-unused-sm_cache_map_vector-definition.patch b/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi-4.1/0002-vmcs-Remove-unused-sm_cache_map_vector-definition.patch
deleted file mode 100644
index 8d4a900..0000000
--- a/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi-4.1/0002-vmcs-Remove-unused-sm_cache_map_vector-definition.patch
+++ /dev/null
@@ -1,31 +0,0 @@
-The code using it also ifdef'ed with 0, anyyd gcc 6
-complains
-
-error: 'sm_cache_map_vector' defined but not used
-
-The code using it also ifdef'ed out
-
-Upstream-status: Denied [https://github.com/raspberrypi/linux/pull/1528]
-
-Signed-off-by: Khem Raj <raj.khem@gmail.com>
----
- drivers/char/broadcom/vc_sm/vmcs_sm.c | 2 ++
- 1 file changed, 2 insertions(+)
-
---- a/drivers/char/broadcom/vc_sm/vmcs_sm.c
-+++ b/drivers/char/broadcom/vc_sm/vmcs_sm.c
-@@ -197,12 +197,14 @@ struct SM_STATE_T {
- static struct SM_STATE_T *sm_state;
- static int sm_inited;
- 
-+#if 0
- static const char *const sm_cache_map_vector[] = {
- 	"(null)",
- 	"host",
- 	"videocore",
- 	"host+videocore",
- };
-+#endif
- 
- /* ---- Private Function Prototypes -------------------------------------- */
- 
diff --git a/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi-4.1/0003-fix-gcc6.patch b/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi-4.1/0003-fix-gcc6.patch
deleted file mode 100644
index 61ec2fb..0000000
--- a/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi-4.1/0003-fix-gcc6.patch
+++ /dev/null
@@ -1,78 +0,0 @@
-Fix compile with GCC6
-
-Upstream-status: Denied [https://github.com/raspberrypi/linux/pull/1528]
-
-Signed-off-by: Andrei Gherzan <andrei@gherzan.ro>
-
-Index: source/include/linux/compiler-gcc6.h
-===================================================================
---- /dev/null
-+++ source/include/linux/compiler-gcc6.h
-@@ -0,0 +1,67 @@
-+#ifndef __LINUX_COMPILER_H
-+#error "Please don't include <linux/compiler-gcc5.h> directly, include <linux/compiler.h> instead."
-+#endif
-+
-+#define __used				__attribute__((__used__))
-+#define __must_check			__attribute__((warn_unused_result))
-+#define __compiler_offsetof(a, b)	__builtin_offsetof(a, b)
-+
-+/* Mark functions as cold. gcc will assume any path leading to a call
-+   to them will be unlikely.  This means a lot of manual unlikely()s
-+   are unnecessary now for any paths leading to the usual suspects
-+   like BUG(), printk(), panic() etc. [but let's keep them for now for
-+   older compilers]
-+
-+   Early snapshots of gcc 4.3 don't support this and we can't detect this
-+   in the preprocessor, but we can live with this because they're unreleased.
-+   Maketime probing would be overkill here.
-+
-+   gcc also has a __attribute__((__hot__)) to move hot functions into
-+   a special section, but I don't see any sense in this right now in
-+   the kernel context */
-+#define __cold			__attribute__((__cold__))
-+
-+#define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__)
-+
-+#ifndef __CHECKER__
-+# define __compiletime_warning(message) __attribute__((warning(message)))
-+# define __compiletime_error(message) __attribute__((error(message)))
-+#endif /* __CHECKER__ */
-+
-+/*
-+ * Mark a position in code as unreachable.  This can be used to
-+ * suppress control flow warnings after asm blocks that transfer
-+ * control elsewhere.
-+ *
-+ * Early snapshots of gcc 4.5 don't support this and we can't detect
-+ * this in the preprocessor, but we can live with this because they're
-+ * unreleased.  Really, we need to have autoconf for the kernel.
-+ */
-+#define unreachable() __builtin_unreachable()
-+
-+/* Mark a function definition as prohibited from being cloned. */
-+#define __noclone	__attribute__((__noclone__))
-+
-+/*
-+ * Tell the optimizer that something else uses this function or variable.
-+ */
-+#define __visible __attribute__((externally_visible))
-+
-+/*
-+ * GCC 'asm goto' miscompiles certain code sequences:
-+ *
-+ *   http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58670
-+ *
-+ * Work it around via a compiler barrier quirk suggested by Jakub Jelinek.
-+ *
-+ * (asm goto is automatically volatile - the naming reflects this.)
-+ */
-+#define asm_volatile_goto(x...)	do { asm goto(x); asm (""); } while (0)
-+
-+#ifdef CONFIG_ARCH_USE_BUILTIN_BSWAP
-+#define __HAVE_BUILTIN_BSWAP32__
-+#define __HAVE_BUILTIN_BSWAP64__
-+#define __HAVE_BUILTIN_BSWAP16__
-+#endif /* CONFIG_ARCH_USE_BUILTIN_BSWAP */
-+
-+#define KASAN_ABI_VERSION 4
diff --git a/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi-4.4/0001-fix-dtbo-rules.patch b/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi-4.4/0001-fix-dtbo-rules.patch
new file mode 100644
index 0000000..5113e23
--- /dev/null
+++ b/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi-4.4/0001-fix-dtbo-rules.patch
@@ -0,0 +1,44 @@
+From 13c8784da3dbd977f64cec740eba775b6fab11c2 Mon Sep 17 00:00:00 2001
+From: Herve Jourdain <herve.jourdain@neuf.fr>
+Date: Fri, 20 May 2016 16:02:23 +0800
+Subject: [yocto][meta-raspberrypi][PATCH v4 4/5] linux-raspberrypi_4.4.inc:
+ support for .dtbo files for dtb overlays
+
+Upstream-Status: Pending
+
+Kernel 4.4.6+ on RaspberryPi support .dtbo files for overlays, instead of .dtb.
+Patch the kernel, which has faulty rules to generate .dtbo the way yocto does
+
+Signed-off-by: Herve Jourdain <herve.jourdain@neuf.fr>
+---
+ .../0001-fix-dtbo-rules.patch                      | 27 ++++++++++++++++++++++
+ 1 file changed, 27 insertions(+)
+ create mode 100644 recipes-kernel/linux/linux-raspberrypi-4.4/0001-fix-dtbo-rules.patch
+
+diff --git a/arch/arm/Makefile b/arch/arm/Makefile
+index a2e7cf7..673c1cb 100644
+--- a/arch/arm/Makefile
++++ b/arch/arm/Makefile
+@@ -333,6 +333,8 @@ $(INSTALL_TARGETS):
+ 
+ %.dtb: | scripts
+ 	$(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $(boot)/dts/$@
++%.dtbo: | scripts
++	$(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $(boot)/dts/$@
+ 
+ PHONY += dtbs dtbs_install
+ 
+diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
+index 3079c4f..6cc3766 100644
+--- a/scripts/Makefile.lib
++++ b/scripts/Makefile.lib
+@@ -293,7 +293,8 @@ $(obj)/%.dtb: $(src)/%.dts FORCE
+ 	$(call if_changed_dep,dtc)
+ 
+ quiet_cmd_dtco = DTCO    $@
+-cmd_dtco = $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \
++cmd_dtco = mkdir -p $(dir ${dtc-tmp}) ; \
++	$(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \
+ 	$(objtree)/scripts/dtc/dtc -@ -H epapr -O dtb -o $@ -b 0 \
+ 		-i $(dir $<) $(DTC_FLAGS) \
+ 		-d $(depfile).dtc.tmp $(dtc-tmp) ; \
diff --git a/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi-4.9/0001-build-arm64-Add-rules-for-.dtbo-files-for-dts-overla.patch b/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi-4.9/0001-build-arm64-Add-rules-for-.dtbo-files-for-dts-overla.patch
new file mode 100644
index 0000000..e8bc52e
--- /dev/null
+++ b/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi-4.9/0001-build-arm64-Add-rules-for-.dtbo-files-for-dts-overla.patch
@@ -0,0 +1,29 @@
+From 922ce1fd0eb810b713f6ffa9a7ab97c11b6e38cf Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 10 Feb 2017 17:57:08 -0800
+Subject: [PATCH] build/arm64: Add rules for .dtbo files for dts overlays
+
+We now create overlays as .dtbo files.
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ arch/arm64/Makefile | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
+index 3635b8662724..822fefeb1cd0 100644
+--- a/arch/arm64/Makefile
++++ b/arch/arm64/Makefile
+@@ -113,6 +113,9 @@ zinstall install:
+ %.dtb: scripts
+ 	$(Q)$(MAKE) $(build)=$(boot)/dts $(boot)/dts/$@
+ 
++%.dtbo: | scripts
++	$(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $(boot)/dts/$@
++
+ PHONY += dtbs dtbs_install
+ 
+ dtbs: prepare scripts
+-- 
+2.11.1
+
diff --git a/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi.inc b/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi.inc
index 6184402..98229d9 100644
--- a/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi.inc
+++ b/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi.inc
@@ -54,16 +54,3 @@
     fi
     echo "${CMDLINE}${PITFT_PARAMS}" > ${DEPLOYDIR}/bcm2835-bootfiles/cmdline.txt
 }
-
-do_bundle_initramfs_append() {
-    if [ ! -z "${INITRAMFS_IMAGE}" -a x"${INITRAMFS_IMAGE_BUNDLE}" = x1 ]; then
-        if test "x${KERNEL_IMAGETYPE}" != "xuImage" ; then
-            if test -n "${KERNEL_DEVICETREE}"; then
-                # Add RPi bootloader trailer to kernel image to enable DeviceTree support
-                for type in ${KERNEL_IMAGETYPES} ; do
-                    ${STAGING_BINDIR_NATIVE}/mkknlimg --dtok ${KERNEL_OUTPUT_DIR}/$type.initramfs ${KERNEL_OUTPUT_DIR}/$type.initramfs
-                done
-            fi
-        fi
-    fi
-}
diff --git a/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi_3.18.bb b/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi_3.18.bb
deleted file mode 100644
index 1110b71..0000000
--- a/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi_3.18.bb
+++ /dev/null
@@ -1,14 +0,0 @@
-FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}-${PV}:"
-
-LINUX_VERSION ?= "3.18.16"
-
-SRCREV = "1bb18c8f721ef674a447f3622273f2e2de7a205c"
-SRC_URI = "git://github.com/raspberrypi/linux.git;protocol=git;branch=rpi-3.18.y \
-           file://0001-dts-add-overlay-for-pitft22.patch \
-          "
-require linux-raspberrypi.inc
-
-# Create missing out of tree 'overlays' directory prior to install step
-do_compile_prepend() {
-  mkdir -p ${B}/arch/arm/boot/dts/overlays
-}
diff --git a/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi_4.1.bb b/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi_4.1.bb
deleted file mode 100644
index 87c77b8..0000000
--- a/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi_4.1.bb
+++ /dev/null
@@ -1,12 +0,0 @@
-FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}-${PV}:"
-
-LINUX_VERSION ?= "4.1.21"
-
-SRCREV = "ff45bc0e8917c77461b2901e2743e6339bb70413"
-SRC_URI = "git://github.com/raspberrypi/linux.git;protocol=git;branch=rpi-4.1.y \
-           file://0001-dts-add-overlay-for-pitft22.patch \
-           file://0002-vmcs-Remove-unused-sm_cache_map_vector-definition.patch \
-           file://0003-fix-gcc6.patch \
-          "
-
-require linux-raspberrypi.inc
diff --git a/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi_4.4.bb b/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi_4.4.bb
index 3291ffd..b235772 100644
--- a/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi_4.4.bb
+++ b/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi_4.4.bb
@@ -1,8 +1,9 @@
 FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}-${PV}:"
 
-LINUX_VERSION ?= "4.4.13"
+LINUX_VERSION ?= "4.4.48"
 
-SRCREV = "680be5e27a9593cf26079c6e5744a04cc2809d13"
+SRCREV = "7ddf96fbb7d637b79b449c7bd1c8d35f00571e4b"
 SRC_URI = "git://github.com/raspberrypi/linux.git;protocol=git;branch=rpi-4.4.y \
+           file://0001-fix-dtbo-rules.patch \
 "
 require linux-raspberrypi.inc
diff --git a/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi_4.9.bb b/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi_4.9.bb
new file mode 100644
index 0000000..dcca369
--- /dev/null
+++ b/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi_4.9.bb
@@ -0,0 +1,9 @@
+FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}-${PV}:"
+
+LINUX_VERSION ?= "4.9.10"
+
+SRCREV = "095c4480e1f623bdc8a221a171ef13b2223706b1"
+SRC_URI = "git://github.com/raspberrypi/linux.git;protocol=git;branch=rpi-4.9.y \
+           file://0001-build-arm64-Add-rules-for-.dtbo-files-for-dts-overla.patch \
+"
+require linux-raspberrypi.inc
diff --git a/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-rpi.inc b/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-rpi.inc
index 4b65fc2..53383b0 100644
--- a/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-rpi.inc
+++ b/import-layers/meta-raspberrypi/recipes-kernel/linux/linux-rpi.inc
@@ -13,9 +13,9 @@
 # Quirk for udev greater or equal 141
 UDEV_GE_141 ?= "1"
 
-# Set the verbosity of kernel messages during runtime
-# You can define CMDLINE_DEBUG in your local.conf or distro.conf to override this behaviour
-CMDLINE_DEBUG ?= '${@base_conditional("DISTRO_TYPE", "release", "quiet", "debug", d)}'
+# You can define CMDLINE_DEBUG as "debug" in your local.conf or distro.conf
+# to enable kernel debugging.
+CMDLINE_DEBUG ?= ""
 CMDLINE_append = " ${CMDLINE_DEBUG}"
 
 KERNEL_INITRAMFS ?= '${@base_conditional("INITRAMFS_IMAGE_BUNDLE", "1", "1", "", d)}'
@@ -111,6 +111,16 @@
     # Activate CONFIG_LEGACY_PTYS
     kernel_configure_variable LEGACY_PTYS y
 
+    # Activate the configuration options for VC4
+    VC4GRAPHICS="${@bb.utils.contains("MACHINE_FEATURES", "vc4graphics", "1", "0", d)}"
+    if [ ${VC4GRAPHICS} = "1" ]; then
+        kernel_configure_variable I2C_BCM2835 y
+        kernel_configure_variable DRM y
+        kernel_configure_variable DRM_FBDEV_EMULATION y
+        kernel_configure_variable DRM_VC4 y
+        kernel_configure_variable FB_BCM2708 n
+    fi
+
     # Keep this the last line
     # Remove all modified configs and add the rest to .config
     sed -e "${CONF_SED_SCRIPT}" < '${WORKDIR}/defconfig' >> '${B}/.config'