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-rw-r--r--include/mtd/ubi-media.h6
-rw-r--r--include/mtd/ubi-user.h16
2 files changed, 20 insertions, 2 deletions
diff --git a/include/mtd/ubi-media.h b/include/mtd/ubi-media.h
index 08bec3e..132cc24 100644
--- a/include/mtd/ubi-media.h
+++ b/include/mtd/ubi-media.h
@@ -61,6 +61,11 @@ enum {
* Volume flags used in the volume table record.
*
* @UBI_VTBL_AUTORESIZE_FLG: auto-resize this volume
+ * @UBI_VTBL_SKIP_CRC_CHECK_FLG: skip the CRC check done on a static volume at
+ * open time. Should only be set on volumes that
+ * are used by upper layers doing this kind of
+ * check. Main use-case for this flag is
+ * boot-time reduction
*
* %UBI_VTBL_AUTORESIZE_FLG flag can be set only for one volume in the volume
* table. UBI automatically re-sizes the volume which has this flag and makes
@@ -92,6 +97,7 @@ enum {
*/
enum {
UBI_VTBL_AUTORESIZE_FLG = 0x01,
+ UBI_VTBL_SKIP_CRC_CHECK_FLG = 0x02,
};
/*
diff --git a/include/mtd/ubi-user.h b/include/mtd/ubi-user.h
index 2b50dad..707c4f2 100644
--- a/include/mtd/ubi-user.h
+++ b/include/mtd/ubi-user.h
@@ -279,6 +279,18 @@ struct ubi_attach_req {
int8_t padding[10];
};
+/*
+ * UBI volume flags.
+ *
+ * @UBI_VOL_SKIP_CRC_CHECK_FLG: skip the CRC check done on a static volume at
+ * open time. Only valid for static volumes and
+ * should only be used if the volume user has a
+ * way to verify data integrity
+ */
+enum {
+ UBI_VOL_SKIP_CRC_CHECK_FLG = 0x1,
+};
+
/**
* struct ubi_mkvol_req - volume description data structure used in
* volume creation requests.
@@ -286,7 +298,7 @@ struct ubi_attach_req {
* @alignment: volume alignment
* @bytes: volume size in bytes
* @vol_type: volume type (%UBI_DYNAMIC_VOLUME or %UBI_STATIC_VOLUME)
- * @padding1: reserved for future, not used, has to be zeroed
+ * @flags: volume flags (%UBI_VOL_SKIP_CRC_CHECK_FLG)
* @name_len: volume name length
* @padding2: reserved for future, not used, has to be zeroed
* @name: volume name
@@ -315,7 +327,7 @@ struct ubi_mkvol_req {
int32_t alignment;
int64_t bytes;
int8_t vol_type;
- int8_t padding1;
+ uint8_t flags;
int16_t name_len;
int8_t padding2[4];
char name[UBI_MAX_VOLUME_NAME + 1];