mmc-utils: ffu: Add optional chunk-size argument

Normally one would like to perform ffu using the largest possible chunk.
However, since the ffu-timeout is vendor specific, there are times in
which smaller chunks would lead to a more robust ffu process.  Allow
this via an additional optional argument.

Tested-by: Lund Austin <>
Signed-off-by: Avri Altman <>
Signed-off-by: Ulf Hansson <>
2 files changed