add more build goodies

1. add buildroot to the build targets (still not used as rootfs).
2. bootstrap ubuntu 19.04 rootfs using multistrap and
qemu-aarch64-static
3. build and install restool under ubuntu rootfs
4. Image and dtb are added to ubuntu 19.04 partition
5. The micro SD now contains a file called ubuntu-core.img. That image
can be copied to NVME drive, SATA drive or USB drive and using it's
PARTUUID the kernel finds the right root partition and mounts it.

To install the image on NVME M.2 drive; stop u-boot count down and run -

load mmc 0:1 0xa4000000 ubuntu-core.img
nvme scan
nvme write 0xa4000000 0 262144
nvme write 0xac000000 262144 262144
nvme write 0xb4000000 524288 204800

To install to SATA drive -
load mmc 0:1 0xa4000000 ubuntu-core.img
scsi reset
scsi write 0xa4000000 0 0xb2000

then run 'boot'.

First thing after booting ubuntu -
1. resize the main partition to include bigger partition than the default.
2. run resize2fs /dev/nvme0n1p1 or resize2fs /dev/sda1 to enlarge the
rootfs to new partition
3. run 'dhclient'
4. get ntp clock by running 'ntpdate pool.ntp.org'
5. store clock to RTC chip 'hwclock -w'
Signed-off-by: Rabeeh Khoury <rabeeh@solid-run.com>

runme.sh

@@ -10,6 +10,7 @@ set -e
 # General configurations
 ###############################################################################
 RELEASE=LSDK-19.06
+BUILDROOT_VERSION=2019.05.2
 
 #UEFI_RELEASE=DEBUG
 #BOOT=xspi
@@ -42,7 +43,8 @@ mkdir -p build images
 ROOTDIR=`pwd`
 PARALLEL=32 # Amount of parallel jobs for the builds
 SPEED=2000_700_${DDR_SPEED}
-TOOLS="wget tar git make 7z unsquashfs dd vim mkfs.ext4 sudo parted mkdosfs mcopy dtc iasl mkimage fuse-ext2"
+TOOLS="wget tar git make 7z unsquashfs dd vim mkfs.ext4 sudo parted mkdosfs mcopy dtc iasl mkimage e2cp truncate multistrap qemu-aarch64-static"
+
 export PATH=$ROOTDIR/build/toolchain/gcc-linaro-7.4.1-2019.02-x86_64_aarch64-linux-gnu/bin:$PATH
 export CROSS_COMPILE=aarch64-linux-gnu-
 export ARCH=arm64
@@ -85,11 +87,9 @@ if [[ ! -d $ROOTDIR/build/toolchain ]]; then
 	tar -xvf gcc-linaro-4.9-2016.02-x86_64_aarch64-linux-gnu.tar.xz
 fi
 
-
 echo "Building boot loader"
 cd $ROOTDIR
 
-
 ###############################################################################
 # source code cloning
 ###############################################################################
@@ -125,6 +125,56 @@ for i in $QORIQ_COMPONENTS; do
 	fi
 done
 
+if [[ ! -f $ROOTDIR/build/ubuntu-core.ext4 ]]; then
+	cd $ROOTDIR/build
+	export DEBIAN_FRONTEND=noninteractive DEBCONF_NONINTERACTIVE_SEEN=true LC_ALL=C LANGUAGE=C LANG=C
+	export PACKAGES="systemd-sysv apt locales less wget procps openssh-server ifupdown net-tools isc-dhcp-client"
+	PACKAGES=$PACKAGES" ntpdate lm-sensors i2c-tools psmisc less sudo htop iproute2 iputils-ping kmod network-manager"
+	# xterm
+	cat > ubuntu.conf << EOF
+[General]
+unpack=true
+bootstrap=Ubuntu
+aptsources=Ubuntu
+cleanup=true
+allowrecommends=false
+addimportant=false
+
+[Ubuntu]
+packages=$PACKAGES
+source=http://ports.ubuntu.com/
+keyring=ubuntu-keyring
+suite=disco
+components=main universe multiverse
+EOF
+	sudo multistrap -a arm64 -d ubuntu -f ubuntu.conf
+
+	sudo sh -c 'echo localhost > ubuntu/etc/hostname'
+	sudo sh -c 'sudo cat > ubuntu/etc/hosts << EOF
+127.0.0.1 localhost
+EOF'
+	sudo sh -c 'echo "nameserver 8.8.8.8" > ubuntu/etc/resolv.conf'
+	QEMU=`which qemu-aarch64-static`
+	sudo cp $QEMU ubuntu/usr/bin/
+	set +e
+	## first configure fails
+	sudo chroot ubuntu/ /usr/bin/qemu-aarch64-static /usr/bin/dpkg --configure -a
+	set -e
+	sudo chroot ubuntu/ /usr/bin/qemu-aarch64-static /usr/bin/dpkg --configure -a
+
+	echo -e "root\nroot" | sudo chroot ubuntu/ /usr/bin/qemu-aarch64-static /usr/bin/passwd
+	# Remove qemu after done
+	sudo rm ubuntu/usr/bin/qemu-aarch64-static
+	truncate -s 350M ubuntu-core.ext4.tmp
+	mkfs.ext4 -b 4096 -F ubuntu-core.ext4.tmp
+	mkdir -p mnt
+	sudo mount -o loop ubuntu-core.ext4.tmp mnt/
+	sudo cp -a ubuntu/* mnt/
+	sudo umount mnt/
+	rmdir mnt/
+	mv ubuntu-core.ext4.tmp ubuntu-core.ext4
+fi
+
 if [[ ! -d $ROOTDIR/build/qoriq-mc-binary ]]; then
 	cd $ROOTDIR/build
 	git clone https://github.com/NXP/qoriq-mc-binary.git
@@ -132,11 +182,25 @@ if [[ ! -d $ROOTDIR/build/qoriq-mc-binary ]]; then
 	git checkout -b $RELEASE refs/tags/$RELEASE
 fi
 
-
+if [[ ! -d $ROOTDIR/build/buildroot ]]; then
+	cd $ROOTDIR/build
+	git clone https://github.com/buildroot/buildroot -b $BUILDROOT_VERSION
+fi
 ###############################################################################
 # building sources
 ###############################################################################
 
+
+echo "Building buildroot"
+cd $ROOTDIR/build/buildroot
+cp $ROOTDIR/configs/buildroot/lx2160acex7_defconfig configs/
+make lx2160acex7_defconfig
+make
+
+echo "Building restool"
+cd $ROOTDIR/build/restool
+CC=${CROSS_COMPILE}gcc DESTDIR=./install prefix=/usr make install
+
 echo "Building RCW"
 cd $ROOTDIR/build/rcw/lx2160acex7
 make clean
@@ -197,7 +261,7 @@ make -C config/
 
 echo "Building the kernel"
 cd $ROOTDIR/build/linux
-./scripts/kconfig/merge_config.sh arch/arm64/configs/defconfig arch/arm64/configs/lsdk.config 
+./scripts/kconfig/merge_config.sh arch/arm64/configs/defconfig arch/arm64/configs/lsdk.config $ROOTDIR/configs/linux/lx2k_additions.config
 make -j$PARALLEL all #Image dtbs
 
 cat > kernel2160cex7.its << EOF
@@ -257,18 +321,67 @@ cat > kernel2160cex7.its << EOF
 EOF
 
 mkimage -f kernel2160cex7.its kernel-lx2160acex7.itb
-
+\rm -rf $ROOTDIR/images/tmp
+mkdir -p $ROOTDIR/images/tmp/
+mkdir -p $ROOTDIR/images/tmp/boot
+make INSTALL_MOD_PATH=$ROOTDIR/images/tmp/ modules_install
+cp $ROOTDIR/build/linux/arch/arm64/boot/Image $ROOTDIR/images/tmp/boot
+cp $ROOTDIR/build/linux/arch/arm64/boot/dts/freescale/fsl-lx2160a-cex7.dtb $ROOTDIR/images/tmp/boot
 
 ###############################################################################
 # assembling images
 ###############################################################################
-echo "Assembling image"
+echo "Assembling kernel and rootfs image"
+cd $ROOTDIR
+mkdir -p $ROOTDIR/images/tmp/extlinux/
+cat > $ROOTDIR/images/tmp/extlinux/extlinux.conf << EOF
+  TIMEOUT 30
+  DEFAULT linux
+  MENU TITLE linux-lx2160a boot options
+  LABEL primary
+    MENU LABEL primary kernel
+    LINUX /boot/Image
+    FDT /boot/fsl-lx2160a-cex7.dtb
+    APPEND console=ttyAMA0,115200 earlycon=pl011,mmio32,0x21c0000 default_hugepagesz=1024m hugepagesz=1024m hugepages=2 pci=pcie_bus_perf root=PARTUUID=30303030-01 rw rootwait
+EOF
+
+# blkid images/tmp/ubuntu-core.img | cut -f2 -d'"'
+cp $ROOTDIR/build/ubuntu-core.ext4 $ROOTDIR/images/tmp/
+e2mkdir -G 0 -O 0 $ROOTDIR/images/tmp/ubuntu-core.ext4:extlinux
+e2cp -G 0 -O 0 $ROOTDIR/images/tmp/extlinux/extlinux.conf $ROOTDIR/images/tmp/ubuntu-core.ext4:extlinux/
+e2mkdir -G 0 -O 0 $ROOTDIR/images/tmp/ubuntu-core.ext4:boot
+e2cp -G 0 -O 0 $ROOTDIR/images/tmp/boot/Image $ROOTDIR/images/tmp/ubuntu-core.ext4:boot/
+e2cp -G 0 -O 0 $ROOTDIR/images/tmp/boot/fsl-lx2160a-cex7.dtb $ROOTDIR/images/tmp/ubuntu-core.ext4:boot/
+
+# install restool
+e2cp -p -G 0 -O 0 $ROOTDIR/build/restool/install/usr/bin/ls-append-dpl $ROOTDIR/images/tmp/ubuntu-core.ext4:/usr/bin/
+e2cp -p -G 0 -O 0 $ROOTDIR/build/restool/install/usr/bin/ls-main $ROOTDIR/images/tmp/ubuntu-core.ext4:/usr/bin/
+e2cp -p -G 0 -O 0 $ROOTDIR/build/restool/install/usr/bin/restool $ROOTDIR/images/tmp/ubuntu-core.ext4:/usr/bin/
+e2ln images/tmp/ubuntu-core.ext4:/usr/bin/ls-main /usr/bin/ls-addmux
+e2ln images/tmp/ubuntu-core.ext4:/usr/bin/ls-main /usr/bin/ls-addni
+e2ln images/tmp/ubuntu-core.ext4:/usr/bin/ls-main /usr/bin/ls-addsw
+e2ln images/tmp/ubuntu-core.ext4:/usr/bin/ls-main /usr/bin/ls-listmac
+e2ln images/tmp/ubuntu-core.ext4:/usr/bin/ls-main /usr/bin/ls-listni
+
+truncate -s 356M $ROOTDIR/images/tmp/ubuntu-core.img
+parted --script $ROOTDIR/images/tmp/ubuntu-core.img mklabel msdos mkpart primary 1MiB 354MiB
+# Generate the above partuuid 3030303030 which is the 4 characters of '0' in ascii
+echo "0000" | dd of=$ROOTDIR/images/tmp/ubuntu-core.img bs=1 seek=440 conv=notrunc
+dd if=$ROOTDIR/images/tmp/ubuntu-core.ext4 of=$ROOTDIR/images/tmp/ubuntu-core.img bs=1M seek=1 conv=notrunc
+
+### TODO - copy over kernel modules
+### TODO - copy /etc/resolv.conf
+
+echo "Assembling Boot Image"
 cd $ROOTDIR/
 IMG=lx2160acex7_${SPEED}_${SERDES}_${BOOT}.img
-#dd if=/dev/zero of=images/${IMG} bs=1M count=101
-dd if=/dev/zero of=images/${IMG} bs=1M count=1
-#parted --script images/${IMG} mklabel msdos mkpart primary 1MiB 20MiB mkpart primary 20MiB 100MiB
-#dd if=/dev/zero of=images/boot.part bs=1M count=99
+truncate -s 465M $ROOTDIR/images/${IMG}
+#dd if=/dev/zero of=$ROOTDIR/images/${IMG} bs=1M count=1
+parted --script $ROOTDIR/images/${IMG} mklabel msdos mkpart primary 64MiB 464MiB
+truncate -s 400M $ROOTDIR/images/tmp/boot.part
+mkfs.ext4 -b 4096 -F $ROOTDIR/images/tmp/boot.part
+e2cp -G 0 -O 0 $ROOTDIR/images/tmp/ubuntu-core.img $ROOTDIR/images/tmp/boot.part:/
+dd if=$ROOTDIR/images/tmp/boot.part of=$ROOTDIR/images/${IMG} bs=1M seek=64
 
 # RCW+PBI+BL2 at block 8
 if [ "x${BOOT}" == "xsd" ]; then