meta-raspberrypi: AGL support for Raspberry Pi

Yocto/OE layer that extends the recipes for mesa
and the supported Linux kernel for Raspberry Pi
for successful build of AGL with Wayland, Weston
and Qt. It is based on the existing ports of
Tizen and GENIVI Development Platform for
Raspberry Pi.

Change-Id: Icfed9e888c2abaf26c14ab402d0a90215862afbd
Signed-off-by: Leon Anavi <leon.anavi@konsulko.com>

1 files changed, 96 insertions, 0 deletions

diff --git a/meta-agl-bsp/classes/sdcard_image-rpi-gdp.bbclass b/meta-agl-bsp/classes/sdcard_image-rpi-gdp.bbclass
new file mode 100644
index 000000000..2956dd075
--- /dev/null
+++ b/meta-agl-bsp/classes/sdcard_image-rpi-gdp.bbclass
@@ -0,0 +1,96 @@
+inherit sdcard_image-rpi
+
+IMAGE_CMD_rpi-sdimg () {
+
+	# Align partitions
+	BOOT_SPACE_ALIGNED=$(expr ${BOOT_SPACE} + ${IMAGE_ROOTFS_ALIGNMENT} - 1)
+	BOOT_SPACE_ALIGNED=$(expr ${BOOT_SPACE_ALIGNED} - ${BOOT_SPACE_ALIGNED} % ${IMAGE_ROOTFS_ALIGNMENT})
+	SDIMG_SIZE=$(expr ${IMAGE_ROOTFS_ALIGNMENT} + ${BOOT_SPACE_ALIGNED} + $ROOTFS_SIZE)
+
+	echo "Creating filesystem with Boot partition ${BOOT_SPACE_ALIGNED} KiB and RootFS $ROOTFS_SIZE KiB"
+
+	# Check if we are building with device tree support
+	DTS="${@get_dts(d, None)}"
+
+	# Initialize sdcard image file
+	dd if=/dev/zero of=${SDIMG} bs=1024 count=0 seek=${SDIMG_SIZE}
+
+	# Create partition table
+	parted -s ${SDIMG} mklabel msdos
+	# Create boot partition and mark it as bootable
+	parted -s ${SDIMG} unit KiB mkpart primary fat32 ${IMAGE_ROOTFS_ALIGNMENT} $(expr ${BOOT_SPACE_ALIGNED} \+ ${IMAGE_ROOTFS_ALIGNMENT})
+	parted -s ${SDIMG} set 1 boot on
+	# Create rootfs partition to the end of disk
+	parted -s ${SDIMG} -- unit KiB mkpart primary ext2 $(expr ${BOOT_SPACE_ALIGNED} \+ ${IMAGE_ROOTFS_ALIGNMENT}) -1s
+	parted ${SDIMG} print
+
+	# Create a vfat image with boot files
+	BOOT_BLOCKS=$(LC_ALL=C parted -s ${SDIMG} unit b print | awk '/ 1 / { print substr($4, 1, length($4 -1)) / 512 /2 }')
+	rm -f ${WORKDIR}/boot.img
+	mkfs.vfat -n "${BOOTDD_VOLUME_ID}" -S 512 -C ${WORKDIR}/boot.img $BOOT_BLOCKS
+	mcopy -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/bcm2835-bootfiles/* ::/
+	case "${KERNEL_IMAGETYPE}" in
+	"uImage")
+		mcopy -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/u-boot.img ::${SDIMG_KERNELIMAGE}
+		mcopy -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/${KERNEL_IMAGETYPE}${KERNEL_INITRAMFS}-${MACHINE}.bin ::uImage
+		;;
+	*)
+		if test -n "${DTS}"; then
+			# Device Tree Overlays are assumed to be suffixed by '-overlay.dtb' string and will be put in a dedicated folder
+			DT_OVERLAYS="${@split_overlays(d, 0)}"
+			DT_ROOT="${@split_overlays(d, 1)}"
+
+			# Copy board device trees to root folder
+			for DTB in ${DT_ROOT}; do
+				DTB_BASE_NAME=`basename ${DTB} .dtb`
+
+				mcopy -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/${KERNEL_IMAGETYPE}-${DTB_BASE_NAME}.dtb ::${DTB_BASE_NAME}.dtb
+			done
+
+			# Copy device tree overlays to dedicated folder
+			mmd -i ${WORKDIR}/boot.img overlays
+			for DTB in ${DT_OVERLAYS}; do
+				DTB_BASE_NAME=`basename ${DTB} .dtb`
+
+				mcopy -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/${KERNEL_IMAGETYPE}-${DTB_BASE_NAME}.dtb ::overlays/${DTB_BASE_NAME}.dtbo
+			done
+		fi
+		mcopy -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/${KERNEL_IMAGETYPE}${KERNEL_INITRAMFS}-${MACHINE}.bin ::${SDIMG_KERNELIMAGE}
+		;;
+	esac
+
+	if [ -n ${FATPAYLOAD} ] ; then
+		echo "Copying payload into VFAT"
+		for entry in ${FATPAYLOAD} ; do
+				# add the || true to stop aborting on vfat issues like not supporting .~lock files
+				mcopy -i ${WORKDIR}/boot.img -s -v ${IMAGE_ROOTFS}$entry :: || true
+		done
+	fi
+
+	# Add stamp file
+	echo "${IMAGE_NAME}-${IMAGEDATESTAMP}" > ${WORKDIR}/image-version-info
+	mcopy -i ${WORKDIR}/boot.img -v ${WORKDIR}//image-version-info ::
+
+	# Burn Partitions
+	dd if=${WORKDIR}/boot.img of=${SDIMG} conv=notrunc seek=1 bs=$(expr ${IMAGE_ROOTFS_ALIGNMENT} \* 1024) && sync && sync
+	# If SDIMG_ROOTFS_TYPE is a .xz file use xzcat
+	if echo "${SDIMG_ROOTFS_TYPE}" | egrep -q "*\.xz"
+	then
+		xzcat ${SDIMG_ROOTFS} | dd of=${SDIMG} conv=notrunc seek=1 bs=$(expr 1024 \* ${BOOT_SPACE_ALIGNED} + ${IMAGE_ROOTFS_ALIGNMENT} \* 1024) && sync && sync
+	else
+		dd if=${SDIMG_ROOTFS} of=${SDIMG} conv=notrunc seek=1 bs=$(expr 1024 \* ${BOOT_SPACE_ALIGNED} + ${IMAGE_ROOTFS_ALIGNMENT} \* 1024) && sync && sync
+	fi
+
+	# Optionally apply compression
+	case "${SDIMG_COMPRESSION}" in
+	"gzip")
+		gzip -k9 "${SDIMG}"
+		;;
+	"bzip2")
+		bzip2 -k9 "${SDIMG}"
+		;;
+	"xz")
+		xz -k "${SDIMG}"
+		;;
+	esac
+}