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-rw-r--r--common/Kconfig9
1 files changed, 9 insertions, 0 deletions
diff --git a/common/Kconfig b/common/Kconfig
index 42baca2..f5ad63c 100644
--- a/common/Kconfig
+++ b/common/Kconfig
@@ -936,6 +936,15 @@ config ANDROID_AB
allows a bootloader to try a new version of the system but roll back
to previous version if the new one didn't boot all the way.
+config ANDROID_AB_BACKUP_OFFSET
+ hex "Offset of backup bootloader control"
+ depends on ANDROID_AB
+ default 0x0
+ help
+ If non-zero, a backup bootloader message starting at this offset in
+ the partition will tried in the event that the primary one (starting
+ at offset 0) fails its checksum.
+
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