diff options
| author | Tom Hughes <tomhughes@chromium.org> | 2019-11-18 09:50:20 -0800 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2019-11-18 18:45:27 +0000 |
| commit | 6747da58fb5c07f34b4bfe27fff6715480ff1ec1 (patch) | |
| tree | d106adfc3fee8c99319c7f9ffc85e669afc3d10f | |
| parent | 55d2b5df418421db5fcffae3d4c2af847feafe0c (diff) | |
| download | chrome-ec-6747da58fb5c07f34b4bfe27fff6715480ff1ec1.tar.gz | |
docs/fingerprint: Clarify flash_fp_mcu behavior
BRANCH=none
BUG=none
TEST=none
Change-Id: I9305add05965579e5cc4ffed54704a17da27e275
Signed-off-by: Tom Hughes <tomhughes@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1922228
Reviewed-by: Craig Hesling <hesling@chromium.org>
Commit-Queue: Craig Hesling <hesling@chromium.org>
| -rw-r--r-- | docs/fingerprint/fingerprint.md | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/docs/fingerprint/fingerprint.md b/docs/fingerprint/fingerprint.md index c09520e308..90b6aeeb1c 100644 --- a/docs/fingerprint/fingerprint.md +++ b/docs/fingerprint/fingerprint.md @@ -115,9 +115,10 @@ in the field (can’t by design). *** [`flash_fp_mcu`] enables spidev and toggles some GPIOs to put the FPMCU (STM32) -into bootloader mode. At that point it uses `stm32mon` to rewrite the entire -flash (both RO and RW). This will only work if [hardware write protection] is -disabled. +into bootloader mode. At that point it uses [`stm32mon`] to rewrite the entire +flash (both RO and RW). The FPMCU can only be put into bootloader mode when +[hardware write protection] is disabled, which means [`flash_fp_mcu`] can only +be used when [hardware write protection] is disabled. ### `stm32mon` |