diff options
| author | Wealian Liao <whliao@nuvoton.corp-partner.google.com> | 2020-10-29 01:55:56 -0700 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-01-12 02:35:14 +0000 |
| commit | 88b780027ddfc0afa55c4cf3c6d5606d7676cbca (patch) | |
| tree | 32aac28aa0a1c737aecea4162b43a7599a035bef /board/npcx9_evb | |
| parent | 72106b0e0997ac8d0df70335471659372466133b (diff) | |
| download | chrome-ec-88b780027ddfc0afa55c4cf3c6d5606d7676cbca.tar.gz | |
npcx/system: LCT compensate for MTC in PSL_hibernate
NPCX chip uses the MTC module as the RTC counter. However, in PSL
hibernate, MTC will stop counting. NPCX9 supports the LCT module which
could count continuously when VCC1 power is off. The CL uses LCT to
compensate for the MTC counter value after PSL hibernate wake-up. The
LCT maximum counting value is 16 weeks.
BRANCH=none
BUG=b:165777478, b:171919875
TEST=pass "make buildall"
TEST=Check the RTC value in the following scenario:
1. "hibernate" and wake up EC by PSL input.
2. "hibernate 30" and wake up EC after timeout.
3. "hibernate 30" and wake up EC by PSL input before timeout.
Signed-off-by: Wealian Liao <whliao@nuvoton.corp-partner.google.com>
Change-Id: I39e370a437f40749acbd3a35a8b37ebec70f1bf2
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2506864
Reviewed-by: Keith Short <keithshort@chromium.org>
Diffstat (limited to 'board/npcx9_evb')
| -rw-r--r-- | board/npcx9_evb/board.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/board/npcx9_evb/board.h b/board/npcx9_evb/board.h index 209c25a803..3fe42da1a1 100644 --- a/board/npcx9_evb/board.h +++ b/board/npcx9_evb/board.h @@ -21,6 +21,7 @@ #define CONFIG_ENABLE_JTAG_SELECTION #define CONFIG_BOARD_VERSION_GPIO #define CONFIG_EXTPOWER_GPIO +#define CONFIG_HIBERNATE_PSL_COMPENSATE_RTC #define CONFIG_I2C_CONTROLLER #define CONFIG_KEYBOARD_BOARD_CONFIG #define CONFIG_KEYBOARD_PROTOCOL_8042 @@ -36,6 +37,7 @@ #define CONFIG_CMD_STACKOVERFLOW #define CONFIG_CMD_JUMPTAGS #define CONFIG_CMD_FLASH +#define CONFIG_CMD_RTC #define CONFIG_CMD_SCRATCHPAD #define CONFIG_CMD_I2CWEDGE |