Merge pull request #152 from tranchitella/raspberrypi4_ubuntu

configs: add raspberrypi4 ubuntu

configs/raspberrypi4_ubuntu_config

@@ -0,0 +1,8 @@
+# Binaries generated with the following script:
+#
+#    https://github.com/drewmoseley/mender-convert-integration-scripts/blob/master/build-uboot-rpi.shraspberrypi-integration-scripts.tar.gz
+RASPBERRYPI_BINARIES="raspberrypi4-integration-2019.01.tar.gz"
+RASPBERRYPI_KERNEL_IMAGE="vmlinuz"
+MENDER_KERNEL_IMAGETYPE="zImage"
+
+source configs/raspberrypi_config

configs/raspberrypi_config

@@ -19,11 +19,19 @@ function platform_modify() {
   run_and_log_cmd "wget -q ${RASPBERRYPI_BINARIES_URL} -P work/rpi/binaries"
   run_and_log_cmd "tar xvf work/rpi/binaries/${RASPBERRYPI_BINARIES} -C work/rpi/binaries"
 
+  # By default, we modify cmdline.txt.
+  #
+  # In Ubuntu, the file is called btcmd.txt; if this file exists, use it instead
+  CMDLINE="cmdline.txt"
+  if [ -f work/boot/btcmd.txt ]; then
+    CMDLINE="btcmd.txt"
+  fi
+
   # Make a copy of Linux kernel arguments and modify.
-  run_and_log_cmd "cp work/boot/cmdline.txt work/rpi/cmdline.txt"
+  run_and_log_cmd "cp work/boot/$CMDLINE work/rpi/$CMDLINE"
 
   # Set a dynamic rootfs part (required for Mender A/B update strategy)
-  run_and_log_cmd "sed -i 's/\b[ ]root=[^ ]*/ root=\${mender_kernel_root}/' work/rpi/cmdline.txt"
+  run_and_log_cmd "sed -i 's/\b[ ]root=[^ ]*/ root=\${mender_kernel_root}/' work/rpi/$CMDLINE"
 
   # Root filesystem can not be resized when the disk is partition according
   # to Mender layout, where the rootfs partition is the not last one which
@@ -33,14 +41,14 @@ function platform_modify() {
   # cmdline.txt that are performed in the init_resize.sh script.
   #
   # Extracted from /usr/lib/raspi-config/init_resize.sh
-  run_and_log_cmd "sed -i 's| init=/usr/lib/raspi-config/init_resize\.sh||' work/rpi/cmdline.txt"
-  run_and_log_cmd "sed -i 's| sdhci\.debug_quirks2=4||' work/rpi/cmdline.txt"
-  if ! grep -q splash work/rpi/cmdline.txt; then
-    run_and_log_cmd "sed -i 's/ quiet//g' work/rpi/cmdline.txt"
+  run_and_log_cmd "sed -i 's| init=/usr/lib/raspi-config/init_resize\.sh||' work/rpi/$CMDLINE"
+  run_and_log_cmd "sed -i 's| sdhci\.debug_quirks2=4||' work/rpi/$CMDLINE"
+  if ! grep -q splash work/rpi/$CMDLINE; then
+    run_and_log_cmd "sed -i 's/ quiet//g' work/rpi/$CMDLINE"
   fi
 
   # Update Linux kernel command arguments with our custom configuration
-  run_and_log_cmd "sudo cp work/rpi/cmdline.txt work/boot/"
+  run_and_log_cmd "sudo cp work/rpi/$CMDLINE work/boot/"
 
   # Mask udisks2.service, otherwise it will mount the inactive part and we
   # might write an update while it is mounted which often result in
@@ -53,7 +61,10 @@ function platform_modify() {
   # Ubuntu Server images actually use U-boot by default on RPi3 and the
   # layout is slightly different on the boot partition. That is why we need
   # additional logic here to determine what we are converting.
-  if [ -e work/boot/uboot.bin ] && [ -e work/boot/vmlinuz ]; then
+  if [ -e work/boot/uboot_rpi_4_32b.bin ] && [ -e work/boot/vmlinuz ]; then
+    RASPBERRYPI_KERNEL_IMAGE="vmlinuz"
+    RASPBERRYPI_BOOTLOADER_IMAGE="uboot_rpi_4_32b.bin"
+  elif [ -e work/boot/uboot.bin ] && [ -e work/boot/vmlinuz ]; then
     RASPBERRYPI_KERNEL_IMAGE="vmlinuz"
     RASPBERRYPI_BOOTLOADER_IMAGE="uboot.bin"
   else
@@ -74,7 +85,7 @@ function platform_modify() {
   # cases parse the options to determine the functionality.
   run_and_log_cmd "sudo ln -fs /uboot/config.txt work/rootfs/boot/config.txt"
   run_and_log_cmd "sudo ln -fs /uboot/overlays work/rootfs/boot/overlays"
-  run_and_log_cmd "sudo ln -fs /uboot/cmdline.txt work/rootfs/boot/cmdline.txt"
+  run_and_log_cmd "sudo ln -fs /uboot/$CMDLINE work/rootfs/boot/$CMDLINE"
 
   run_and_log_cmd "sudo install -m 755 work/rpi/binaries/fw_printenv work/rootfs/sbin/fw_printenv"
   run_and_log_cmd "sudo ln -fs /sbin/fw_printenv work/rootfs/sbin/fw_setenv"