docs: Improve docs for FDT address passing

This patch updates FW_JUMP and FW_PAYLOAD documentation for the
case where FW_xyz_FDT_ADDR is not specified.

Signed-off-by: Liu Yibin <yibin_liu@c-sky.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
This commit is contained in:
Liu Yibin 2019-12-29 15:47:51 +08:00 committed by Anup Patel
parent 9beb57362f
commit fc6bd90457
2 changed files with 4 additions and 3 deletions

View file

@ -38,8 +38,8 @@ follows:
* **FW_JUMP_FDT_ADDR** - Address where the *flattened device tree (FDT file)*
passed by the prior booting stage will be placed in memory before executing
the booting stage following the OpenSBI firmware. If this option is not
provided, then the OpenSBI firmware will pass zero as the FDT address to the
following booting stage.
provided, then the OpenSBI firmware will pass the FDT address passed by the
previous booting stage to the next booting stage.
*FW_JUMP* Example
-----------------

View file

@ -73,7 +73,8 @@ file. The parameters currently defined are as follows:
stage or specified by the *FW_PAYLOAD_FDT_PATH* parameter and embedded in
the *.text* section will be placed before executing the next booting stage,
that is, the payload firmware. If this option is not provided, then the
firmware will pass zero as the FDT address to the next booting stage.
firmware will pass the FDT address passed by the previous booting stage
to the next booting stage.
*FW_PAYLOAD* Example
--------------------