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mkimage: fit: spl: Add an optional static offset for external data

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When building a FIT with external data (-E), U-Boot proper may require
absolute positioning for executing the external firmware. To acheive this
use the (-p) switch, which will replace the amended 'data-offset' with
'data-position' indicating the absolute position of external data.

It is considered an error if the requested absolute position overlaps with the
initial data required for the compact FIT.

Signed-off-by: Teddy Reed <teddy.reed@gmail.com>
This commit is contained in:
Teddy Reed
2016-06-09 19:38:02 -07:00
committed by Tom Rini
parent 92dfd9221c
commit f8f9107d97
5 changed files with 39 additions and 3 deletions
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@@ -151,6 +151,12 @@ the corresponding public key is written into this file for for run-time
verification. Typically the file here is the device tree binary used by
CONFIG_OF_CONTROL in U-Boot.
.TP
.BI "\-p [" "external position" "]"
Place external data at a static external position. See \-E. Instead of writing
a 'data-offset' property defining the offset from the end of the FIT, \-p will
use 'data-position' as the absolute position from the base of the FIT.
.TP
.BI "\-r
Specifies that keys used to sign the FIT are required. This means that they