diff options
Diffstat (limited to 'board/cr50/board.c')
| -rw-r--r-- | board/cr50/board.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/board/cr50/board.c b/board/cr50/board.c index b3eb22741d..08274a6ba9 100644 --- a/board/cr50/board.c +++ b/board/cr50/board.c @@ -164,6 +164,14 @@ void board_configure_deep_sleep_wakepins(void) /* TODO remove i2cs wake event */ /* + * DIOA3 is GPIO_DETECT_AP which is used to detect if the AP is in S0. + * If the AP is in s0, cr50 should not be in deep sleep so wake up. + */ + GWRITE_FIELD(PINMUX, EXITEDGE0, DIOA3, 1); /* edge sensitive */ + GWRITE_FIELD(PINMUX, EXITINV0, DIOA3, 0); /* wake on high */ + GWRITE_FIELD(PINMUX, EXITEN0, DIOA3, 1); /* GPIO_DETECT_AP */ + + /* * Whether it is a short pulse or long one waking on the rising edge is * fine because the goal of sys_rst is to reset the TPM and after * resuming from deep sleep the TPM will be reset. Cr50 doesn't need to |