diff options
| author | Mary Ruthven <mruthven@chromium.org> | 2019-04-24 11:20:51 -0700 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2019-04-27 01:36:40 -0700 |
| commit | 0f25f85e44362e7feb15ce59974f0423abab0b5f (patch) | |
| tree | f353615b1486127e9e83adac0725b28ec9474fef /board/cr50 | |
| parent | b9bf62a7aea6e71e3faec26894e9f75c3d435afa (diff) | |
| download | chrome-ec-0f25f85e44362e7feb15ce59974f0423abab0b5f.tar.gz | |
ccd: delay sleep while opening ccd
Cr50 may enter deep sleep while wiping the TPM. This change adds a sleep
delay before opening ccd.
BUG=b:130646257
BRANCH=cr50
TEST=manual
dut-control cold_reset:on
run ccd open
make sure ccd is open even after entering deep sleep
Change-Id: Id44b608702b664621bd2441f62a03ba6428135cf
Signed-off-by: Mary Ruthven <mruthven@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1585606
Reviewed-by: Namyoon Woo <namyoon@chromium.org>
Diffstat (limited to 'board/cr50')
| -rw-r--r-- | board/cr50/board.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/board/cr50/board.h b/board/cr50/board.h index 016cbc4607..b03499e3d0 100644 --- a/board/cr50/board.h +++ b/board/cr50/board.h @@ -459,4 +459,19 @@ enum nvmem_users { #define CONFIG_USB_I2C_MAX_WRITE_COUNT 508 #define CONFIG_USB_I2C_MAX_READ_COUNT 506 +/* The below time constants are way longer than should be required in practice: + * + * Time it takes to finish processing TPM command + */ +#define TPM_PROCESSING_TIME (1 * SECOND) + +/* + * Time it takse TPM reset function to wipe out the NVMEM and reboot the + * device. + */ +#define TPM_RESET_TIME (10 * SECOND) + +/* Total time deep sleep should not be allowed while wiping the TPM. */ +#define DISABLE_SLEEP_TIME_TPM_WIPE (TPM_PROCESSING_TIME + TPM_RESET_TIME) + #endif /* __CROS_EC_BOARD_H */ |