cros_bundle_firmware: use new 'sf update' command

This adds an option to use 'sf update' instead of 'sf read' and 'sf write', to speed up flashing of SPI where possible.

It also provides for verify to be optional, since I have never seen it fail and
it now takes close to half the time.

TEST=run on Aebl, restart and check that it boots

Change-Id: If20852bfe1d910b0b7c65e8c9a0f47a60c9d61ef
Tested-by: Simon Glass <>
Reviewed-by: Che-Liang Chiou <>
Reviewed-by: Anton Staaf <>
1 file changed