diff options
| author | Namyoon Woo <namyoon@chromium.org> | 2020-02-06 10:30:30 -0800 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2020-02-20 09:11:47 +0000 |
| commit | f469dcd53ba83992d983dfab6cd5f79c0a5b2e90 (patch) | |
| tree | 3c89e5de06767b88784a3c86e22224cd7ae4b4a4 /builtin/stddef.h | |
| parent | 78138c43f210c6ea59b249863d4e754a2803fd5d (diff) | |
| download | chrome-ec-f469dcd53ba83992d983dfab6cd5f79c0a5b2e90.tar.gz | |
ccdblock can block EC-CR50 communication
This patch introduces 'EC_CR50_COMM' a new option for ccdblock
console command.
It can be useful for system rescue purpose like you want to
force cr50 to yield EC_UART (especially TX) port to servo.
BUG=chromium:1047287
BRANCH=cr50, cr50-mp
TEST=ran manually ccdblock.
> ccdstate
AP: off
AP UART: off
EC: on
Rdd: connected
Servo: undetectable
CCD EXT: enabled
State flags: UARTEC+TX I2C SPI
CCD ports blocked: (none)
>
>
> ccdblock EC_CR50_COMM enable
CCD ports blocked: EC_CR50_COMM
> [73.386550 CCD state: UARTEC I2C SPI]
>
> ccdstate
AP: off
AP UART: off
EC: on
Rdd: connected
Servo: disconnected
CCD EXT: enabled
State flags: UARTEC I2C SPI
CCD ports blocked: EC_CR50_COMM
>
>
> ccdblock EC_CR50_COMM disable
CCD ports blocked: (none)
> [104.781623 CCD state: UARTEC+TX I2C SPI]
ccdstate
AP: off
AP UART: off
EC: on
Rdd: connected
Servo: undetectable
CCD EXT: enabled
State flags: UARTEC+TX I2C SPI
CCD ports blocked: (none)
Change-Id: I7816c201054f1793906bd19d4b58755593d2fbac
Signed-off-by: Namyoon Woo <namyoon@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2042118
Reviewed-by: Mary Ruthven <mruthven@chromium.org>
Diffstat (limited to 'builtin/stddef.h')
0 files changed, 0 insertions, 0 deletions