[yocto] [meta-raspberrypi][PATCH v4 1/2] linux-raspberry.inc: add initramfs support

[Andrei Gherzan]

From: Stéphane Cerveau <scerveau at voxtok.com>

append initramfs creation to install RPi bootloader trailer

Signed-off-by: Stéphane Cerveau <voxtok at voxtok.com>
Signed-off-by: Andrei Gherzan <andrei at gherzan.ro>
---
 recipes-kernel/linux/linux-raspberrypi.inc | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/recipes-kernel/linux/linux-raspberrypi.inc b/recipes-kernel/linux/linux-raspberrypi.inc
index 8c7c46c..1befee4 100644
--- a/recipes-kernel/linux/linux-raspberrypi.inc
+++ b/recipes-kernel/linux/linux-raspberrypi.inc
@@ -64,4 +64,14 @@ do_rpiboot_mkimage() {
         fi
     fi
 }
+
+do_bundle_initramfs_append() {
+    if test "x${KERNEL_IMAGETYPE}" != "xuImage" ; then
+        if test -n "${KERNEL_DEVICETREE}"; then
+            # Add RPi bootloader trailer to kernel image to enable DeviceTree support
+            ${STAGING_LIBEXECDIR_NATIVE}/mkknlimg --dtok ${KERNEL_OUTPUT}.initramfs ${KERNEL_OUTPUT}.initramfs
+        fi
+    fi
+}
+
 addtask rpiboot_mkimage before do_install after do_compile
-- 
2.7.0