base-files: add eMMC sysupgrade support (coolsnowwolf#8400)

Signed-off-by: aakkll <[email protected]>

Co-authored-by: Enrico Mioso <[email protected]>

package/base-files/Makefile

@@ -23,6 +23,7 @@ PKG_LICENSE:=GPL-2.0
 PKG_CONFIG_DEPENDS += \
  CONFIG_SIGNED_PACKAGES CONFIG_TARGET_INIT_PATH CONFIG_TARGET_PREINIT_DISABLE_FAILSAFE \
  CONFIG_NAND_SUPPORT \
+ CONFIG_EMMC_SUPPORT \
  CONFIG_CLEAN_IPKG \
  CONFIG_PER_FEED_REPO \
  $(foreach feed,$(FEEDS_AVAILABLE),CONFIG_FEED_$(feed))
@@ -124,10 +125,17 @@ ifeq ($(CONFIG_NAND_SUPPORT),)
  endef
 endif
 
+ifeq ($(CONFIG_EMMC_SUPPORT),)
+ define Package/base-files/emmc-support
+ rm -f $(1)/lib/upgrade/emmc.sh
+ endef
+endif
+
 define Package/base-files/install
  $(CP) ./files/* $(1)/
  $(Package/base-files/install-key)
  $(Package/base-files/nand-support)
+ $(Package/base-files/emmc-support)
  if [ -d $(GENERIC_PLATFORM_DIR)/base-files/. ]; then \
  $(CP) $(GENERIC_PLATFORM_DIR)/base-files/* $(1)/; \
  fi

package/base-files/files/lib/upgrade/emmc.sh

@@ -0,0 +1,64 @@
+# Copyright (C) 2021 OpenWrt.org
+#
+
+. /lib/functions.sh
+
+emmc_upgrade_tar() {
+ local tar_file="$1"
+ [ "$CI_KERNPART" -a -z "$EMMC_KERN_DEV" ] && export EMMC_KERN_DEV="$(find_mmc_part $CI_KERNPART $CI_ROOTDEV)"
+ [ "$CI_ROOTPART" -a -z "$EMMC_ROOT_DEV" ] && export EMMC_ROOT_DEV="$(find_mmc_part $CI_ROOTPART $CI_ROOTDEV)"
+ [ "$CI_DATAPART" -a -z "$EMMC_DATA_DEV" ] && export EMMC_DATA_DEV="$(find_mmc_part $CI_DATAPART $CI_ROOTDEV)"
+ local has_kernel
+ local has_rootfs
+ local board_dir=$(tar tf "$tar_file" | grep -m 1 '^sysupgrade-.*/$')
+ board_dir=${board_dir%/}
+
+ tar tf "$tar_file" ${board_dir}/kernel 1>/dev/null 2>/dev/null && has_kernel=1
+ tar tf "$tar_file" ${board_dir}/root 1>/dev/null 2>/dev/null && has_rootfs=1
+
+ [ "$has_kernel" = 1 -a "$EMMC_KERN_DEV" ] &&
+ export EMMC_KERNEL_BLOCKS=$(($(tar xf "$tar_file" ${board_dir}/kernel -O | dd of="$EMMC_KERN_DEV" bs=512 2>&1 | grep "records out" | cut -d' ' -f1)))
+
+ [ "$has_rootfs" = 1 -a "$EMMC_ROOT_DEV" ] &&
+ export EMMC_ROOTFS_BLOCKS=$(($(tar xf "$tar_file" ${board_dir}/root -O | dd of="$EMMC_ROOT_DEV" bs=512 2>&1 | grep "records out" | cut -d' ' -f1)))
+
+ if [ -z "$UPGRADE_BACKUP" ]; then
+ if [ "$EMMC_DATA_DEV" ]; then
+ dd if=/dev/zero of="$EMMC_DATA_DEV" bs=512 count=8
+ elif [ "$EMMC_ROOTFS_BLOCKS" ]; then
+ dd if=/dev/zero of="$EMMC_ROOT_DEV" bs=512 seek=$EMMC_ROOTFS_BLOCKS count=8
+ elif [ "$EMMC_KERNEL_BLOCKS" ]; then
+ dd if=/dev/zero of="$EMMC_KERN_DEV" bs=512 seek=$EMMC_KERNEL_BLOCKS count=8
+ fi
+ fi
+}
+
+emmc_upgrade_fit() {
+ local fit_file="$1"
+ [ "$CI_KERNPART" -a -z "$EMMC_KERN_DEV" ] && export EMMC_KERN_DEV="$(find_mmc_part $CI_KERNPART $CI_ROOTDEV)"
+
+ if [ "$EMMC_KERN_DEV" ]; then
+ export EMMC_KERNEL_BLOCKS=$(($(get_image "$fit_file" | fwtool -i /dev/null -T - | dd of="$EMMC_KERN_DEV" bs=512 2>&1 | grep "records out" | cut -d' ' -f1)))
+
+ [ -z "$UPGRADE_BACKUP" ] && dd if=/dev/zero of="$EMMC_KERN_DEV" bs=512 seek=$EMMC_KERNEL_BLOCKS count=8
+ fi
+}
+
+emmc_copy_config() {
+ if [ "$EMMC_DATA_DEV" ]; then
+ dd if="$UPGRADE_BACKUP" of="$EMMC_DATA_DEV" bs=512
+ elif [ "$EMMC_ROOTFS_BLOCKS" ]; then
+ dd if="$UPGRADE_BACKUP" of="$EMMC_ROOT_DEV" bs=512 seek=$EMMC_ROOTFS_BLOCKS
+ elif [ "$EMMC_KERNEL_BLOCKS" ]; then
+ dd if="$UPGRADE_BACKUP" of="$EMMC_KERN_DEV" bs=512 seek=$EMMC_KERNEL_BLOCKS
+ fi
+}
+
+emmc_do_upgrade() {
+ local file_type=$(identify $1)
+
+ case "$file_type" in
+ "fit") emmc_upgrade_fit $1;;
+ *) emmc_upgrade_tar $1;;
+ esac
+}

scripts/target-metadata.pl

@@ -23,6 +23,7 @@ (@)
  /^pwm$/ and $ret .= "\select PWM_SUPPORT\n";
  /^rtc$/ and $ret .= "\tselect RTC_SUPPORT\n";
  /^squashfs$/ and $ret .= "\tselect USES_SQUASHFS\n";
+ /^emmc$/ and $ret .= "\tselect EMMC_SUPPORT\n";
  /^jffs2$/ and $ret .= "\tselect USES_JFFS2\n";
  /^jffs2_nand$/ and $ret .= "\tselect USES_JFFS2_NAND\n";
  /^ext4$/ and $ret .= "\tselect USES_EXT4\n";

target/Config.in

@@ -101,6 +101,9 @@ config RFKILL_SUPPORT
 config NAND_SUPPORT
  bool
 
+config EMMC_SUPPORT
+ bool
+
 config ARCH_64BIT
  bool