tree c1f502ee5cd9dc952ecbae6049ca9f942412a67d
parent 51762a165c9fb73bc8b2f54163fca6a99494fb6c
author Brian J. Nemec <bnemec@google.com> 1741809367 -0700
committer Chromeos LUCI <chromeos-scoped@luci-project-accounts.iam.gserviceaccount.com> 1741856444 -0700

Doloscmd: Optimize EEPROM writes

Optimize the EEPROM writes by identifying the delta between the
current and desired flash state. We identify the segments where
deltas are present and consolidate these into chunks 16B long.

This reduces the total number of write transactions needed from 64
to around a dozen and allows it to be 2 if a single register is
updated.

BUG=b:392957164
TEST=pytest
TEST=dolos_program_cable utility

Change-Id: Ia17837a8bce72749d6b40184d9f7c1010e21f68e
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/dolos/+/6349697
Auto-Submit: Brian Nemec <bnemec@google.com>
Tested-by: Brian Nemec <bnemec@google.com>
Reviewed-by: Keith Haddow <haddowk@chromium.org>
Commit-Queue: Keith Haddow <haddowk@chromium.org>