Flash
- Note
- Please refer to the Product Technical specification document of your platform for further details.
Partition names
- Warning
- This service is not supported on all platforms.
-
- Note
- Partitions names strings construction AR759x/AR758x:
- For duplicates partitions of dual systems, the names follow the syntax: <partitionName>_<systemNumber>
<partitionName>_active
<partitionName>_update
For instance:- modem_1 refers to modem partition of system 1, modem_2 refers to modem partition of system 2
- modem_active refers to the modem partition currently active.
- modem_update refers to the modem partition currently not active (ready for update).
- For common partitions, the name string syntax is: <partitionName>
If system 1 is active, system 2 is update and vice versa. Using "_active" and "_update" suffix lets the service detects the system the use want to address.
| API partition name | mtd name | notes |
|---|---|---|
| sbl | sbl | (see note) |
| tz_1 | tz | |
| tz_2 | tz | |
| tz_active | tz | |
| tz_update | tz | |
| rpm_1 | rpm | |
| rpm_2 | rpm | |
| rpm_active | rpm | |
| rpm_update | rpm | |
| modem_1 | modem | |
| modem_2 | modem2 | |
| modem_active | modem or modem2 | |
| modem_update | modem or modem2 | |
| aboot_1 | aboot | |
| aboot_2 | aboot2 | |
| aboot_active | aboot or aboot2 | |
| aboot_update | aboot or aboot2 | |
| boot_1 | boot | |
| boot_2 | boot2 | |
| boot_active | boot or boot2 | |
| boot_update | boot or boot2 | |
| system_1 | system | |
| system_2 | system2 | |
| system_active | system or system2 | |
| system_update | system or system2 | |
| lefwkro_1 | lefwkro | |
| lefwkro_2 | lefwkro2 | |
| lefwkro_active | lefwkro or lefwkro2 | |
| lefwkro_update | lefwkro or lefwkro2 | |
| customer_1 | customer0 | (dual) |
| customer_2 | customer1 | (dual) |
| customer_active | customer0 or customer1 | (dual) |
| customer_update | customer1 or customer1 | (dual) |
| customer0 | customer0 | (not dual) |
| customer1 | customer1 | (not dual) |
| customer2 | customer2 | (not dual) |
- le_flash_OpenMtd() and le_flash_OpenUbi() API accept all partition name syntaxes, ie, all names of the table above are allowed except "sbl".
- handler of type le_flash_BadImageDetectionHandlerRef_t only provides names following the syntax <partitionName>_<systemNumber>.
- Note
- The "sbl" partition cannot be flashed by the le_flash APIs due to its critical and specific flash scheme. It is only possible to update the "sbl" partition by flashing a .cwe with le_fwupdate_Download() API.
Ubi volume names
- Warning
- This service is not supported on all platforms.
The different UBI volumes are identified by a name (i.e volume name)
- The volume name may contain any character up to 128 bytes length.
- For the system and lefwkro partitions, the following names are used. This is applied to both active and update partitions.
MTD partition UBI volume name Description modem/modem2 modem Binary partition/filesystem image system/system2 rootfs Binary partition/filesystem image system/system2 rootfs_hs Hash tree (DM-verity) system/system2 rootfs_rhs Root hash tree (DM-verity) system/system2 rootfs_srhs Signed root (For secure boot) system/system2 rootfs_cert Certificate (For secure boot) lefwkro/lefwkro2 legato Binary partition/filesystem image lefwkro/lefwkro2 legato_hs Hash tree (DM-verity) lefwkro/lefwkro2 legato_rhs Root hash tree (DM-verity) lefwkro/lefwkro2 legato_srhs Signed root (For secure boot) lefwkro/lefwkro2 legato_cert Certificate (For secure boot)
- Note
- The volumes hash tree, root hash tree, signed root and certificate may not be present if the DM-verity or secure boot features are not available.
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