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Diffstat (limited to 'docs/firmware/fw.md')
| -rw-r--r-- | docs/firmware/fw.md | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/docs/firmware/fw.md b/docs/firmware/fw.md index 4133c23..cc0cc9e 100644 --- a/docs/firmware/fw.md +++ b/docs/firmware/fw.md @@ -51,11 +51,17 @@ case, a *FW_PAYLOAD* firmware allows embedding a flattened device tree in the Firmware Configuration and Compilation -------------------------------------- -All firmware types mandate the definition of the following compile time -configuration parameter. - -* **FW_TEXT_ADDR** - Defines the address at which the previous booting stage - loads OpenSBI firmware. +All firmware types support the following common compile time configuration +parameters: + +* **FW_TEXT_ADDR** - Defines the execution address of the OpenSBI firmware. + This configuration parameter is mandatory. +* **FW_FDT_PATH** - Path to an external flattened device tree binary file to + be embedded in the *.rodata* section of the final firmware. If this option + is not provided then the firmware will expect the FDT to be passed as an + argument by the prior booting stage. +* **FW_FDT_PADDING** - Optional zero bytes padding to the embedded flattened + device tree binary file specified by **FW_FDT_PATH** option. Additionally, each firmware type as a set of type specific configuration parameters. Detailed information for each firmware type can be found in the |