init: add rpi-flash-firmware service

packages/sysutils/busybox/package.mk

@@ -138,6 +138,10 @@ makeinstall_target() {
     sed -e "s/@DISTRONAME@/$DISTRONAME/g" \
         -i $INSTALL/usr/lib/libreelec/fs-resize
 
+    if listcontains "${FIRMWARE}" "rpi-eeprom"; then
+      cp $PKG_DIR/scripts/rpi-flash-firmware $INSTALL/usr/lib/libreelec
+    fi
+
   mkdir -p $INSTALL/etc
     cp $PKG_DIR/config/profile $INSTALL/etc
     cp $PKG_DIR/config/inputrc $INSTALL/etc
@@ -183,6 +187,7 @@ post_install() {
   enable_service var.mount
   enable_service var-log-debug.service
   enable_service fs-resize.service
+  listcontains "${FIRMWARE}" "rpi-eeprom" && enable_service rpi-flash-firmware.service
 
   # cron support
   if [ "$CRON_SUPPORT" = "yes" ] ; then

packages/sysutils/busybox/scripts/init

@@ -1123,17 +1123,16 @@ if [ "$STORAGE_NETBOOT" = "yes" ]; then
   echo "" > /sysroot/dev/.storage_netboot
 fi
 
+BACKUP_FILE=$(ls -1 /sysroot/storage/.restore/??????????????.tar 2>/dev/null | head -n 1)
+
 if [ -f /sysroot/storage/.please_resize_me ]; then
   INIT_UNIT="--unit=fs-resize.target"
-fi
-
-BACKUP_FILE=$(ls -1 /sysroot/storage/.restore/??????????????.tar 2>/dev/null | head -n 1)
-if [ -f "$BACKUP_FILE" ]; then
-  INIT_UNIT="--unit=backup-restore.target"
-fi
-
-if [ -f /sysroot/storage/.cache/reset_oe -o -f /sysroot/storage/.cache/reset_xbmc ]; then
+elif [ -f /sysroot/storage/.cache/reset_oe -o -f /sysroot/storage/.cache/reset_xbmc ]; then
   INIT_UNIT="--unit=factory-reset.target"
+elif [ -f "$BACKUP_FILE" ]; then
+  INIT_UNIT="--unit=backup-restore.target"
+elif [ -f /sysroot/storage/.rpi_flash_firmware ]; then
+  INIT_UNIT="--unit=rpi-flash-firmware.target"
 fi
 
 # switch to new sysroot and start real init

packages/sysutils/busybox/scripts/rpi-flash-firmware

@@ -0,0 +1,66 @@
+#!/bin/sh
+
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2019-present Team LibreELEC (https://libreelec.tv)
+
+FLAG_FILE="/storage/.rpi_flash_firmware"
+
+. /usr/lib/libreelec/functions
+
+hidecursor
+
+if ! mount -o remount,rw /flash 2>/dev/null; then
+  # Remove flag file and bail out
+  rm -f "${FLAG_FILE}"
+  sync
+
+  echo "ERROR: Unable to mount /flash as a read/write file system."
+  echo
+  echo "Aborting Flash update process - please proceed with a manual update."
+  echo
+
+  StartProgress countdown "Rebooting in 15s... " 15 "NOW"
+fi
+
+if [ -f "${FLAG_FILE}" ]; then
+  . ${FLAG_FILE}
+
+  # Prepare flashing environment
+  if [ "${MODE}" = "init" ]; then
+    # Install new SPI bootloader files to /flash (if required)
+    if [ "${BOOTLOADER}" = "yes" ]; then
+      USE_FLASHROM=0 /usr/bin/rpi-eeprom-update -a
+    fi
+
+    # Bump process to next step
+    sed -e 's/^MODE=.*/MODE="update"/' -i "${FLAG_FILE}"
+    sync
+  else
+    rm -f "${FLAG_FILE}"
+    sync
+
+    if [ "${MODE}" = "update" ]; then
+      # Cleanup SPI bootloader files and show current version
+      if [ "${BOOTLOADER}" = "yes" ]; then
+        rm -f /flash/pieeprom.bin /flash/pieeprom.upd
+        rm -f /flash/recovery.bin /flash/recovery.[0-9][0-9][0-9] /flash/RECOVERY.[0-9][0-9][0-9]
+        # Display current bootloader status
+        USE_FLASHROM=0 /usr/bin/rpi-eeprom-update
+      fi
+
+      # Apply VIA USB3 update
+#      if [ "${USB3}" = "yes" ]; then
+#        /usr/bin/vl805
+#      fi
+
+      sync
+      echo ""
+      StartProgress countdown "Rebooting in 15s... " 15 "NOW"
+    fi
+  fi
+
+  sync
+  mount -o remount,ro /flash
+fi
+
+reboot -f &>/dev/null

packages/sysutils/busybox/system.d/rpi-flash-firmware.service

@@ -0,0 +1,12 @@
+[Unit]
+Description=RPi Flash Firmware
+Requires=tmp.mount var.mount sys-kernel-config.mount kernel-overlays.service
+After=tmp.mount var.mount sys-kernel-config.mount kernel-overlays.service
+DefaultDependencies=no
+
+[Service]
+Type=idle
+ExecStart=/usr/lib/libreelec/rpi-flash-firmware
+StandardInput=tty-force
+StandardOutput=inherit
+StandardError=inherit

packages/sysutils/busybox/system.d/rpi-flash-firmware.target

@@ -0,0 +1,5 @@
+[Unit]
+Description=RPi Flash Firmware target
+Requires=rpi-flash-firmware.service
+After=rpi-flash-firmware.service
+AllowIsolate=yes