diff options
| author | Aaron Durbin <adurbin@chromium.org> | 2014-01-09 14:28:05 -0600 |
|---|---|---|
| committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2014-05-13 21:01:52 +0200 |
| commit | 9f1a7cffabacdb6022e4579a6229eb5d29e9bcf4 (patch) | |
| tree | 0610978d63c0689511f1780e6a14fb8c3e2530ed /src/ec | |
| parent | b376ea632f1498174d86fa8f8b78848607492055 (diff) | |
chromeec: add function to reboot on unexpected image
It's helpful to have a generic function that will tell
the EC to reboot if the EC isn't running a specified
image. Add that and implement google_chromeec_early_init()
to utilize the new function still maintaing its semantics
of if recvoery mode is enabled the EC should be running its
RO image. There is a slight change in that no communication
is done with the EC if not in recovery mode.
BUG=chrome-os-partner:24133
BRANCH=rambi,squawks
TEST=Built and boot with recovery request. Noted EC reboot.
Change-Id: I22240f6a11231e39c33fd79796a52ec76b119397
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/182060
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/5039
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Diffstat (limited to 'src/ec')
| -rw-r--r-- | src/ec/google/chromeec/ec.c | 16 | ||||
| -rw-r--r-- | src/ec/google/chromeec/ec.h | 3 |
2 files changed, 14 insertions, 5 deletions
diff --git a/src/ec/google/chromeec/ec.c b/src/ec/google/chromeec/ec.c index c57e18bbca..6e7ecdfb36 100644 --- a/src/ec/google/chromeec/ec.c +++ b/src/ec/google/chromeec/ec.c @@ -100,8 +100,7 @@ u32 google_chromeec_get_events_b(void) } #ifndef __SMM__ -/* Check for recovery mode and ensure EC is in RO */ -void google_chromeec_early_init(void) +void google_chromeec_check_ec_image(int expected_type) { struct chromeec_command cec_cmd; struct ec_response_get_version cec_resp = {{0}}; @@ -113,9 +112,7 @@ void google_chromeec_early_init(void) cec_cmd.cmd_size_out = sizeof(cec_resp); google_chromeec_command(&cec_cmd); - if (cec_cmd.cmd_code || - (recovery_mode_enabled() && - (cec_resp.current_image != EC_IMAGE_RO))) { + if (cec_cmd.cmd_code || cec_resp.current_image != expected_type) { struct ec_params_reboot_ec reboot_ec; /* Reboot the EC and make it come back in RO mode */ reboot_ec.cmd = EC_REBOOT_COLD; @@ -133,6 +130,15 @@ void google_chromeec_early_init(void) } } +/* Check for recovery mode and ensure EC is in RO */ +void google_chromeec_early_init(void) +{ + /* If in recovery ensure EC is running RO firmware. */ + if (recovery_mode_enabled()) { + google_chromeec_check_ec_image(EC_IMAGE_RO); + } +} + u16 google_chromeec_get_board_version(void) { struct chromeec_command cmd; diff --git a/src/ec/google/chromeec/ec.h b/src/ec/google/chromeec/ec.h index a037d0147d..d033bab73a 100644 --- a/src/ec/google/chromeec/ec.h +++ b/src/ec/google/chromeec/ec.h @@ -36,7 +36,10 @@ int google_ec_running_ro(void); void google_chromeec_init(void); #endif +/* If recovery mode is enabled and EC is not running RO firmware reboot. */ void google_chromeec_early_init(void); +/* Reboot if EC firmware is not expected type. */ +void google_chromeec_check_ec_image(int expected_type); uint8_t google_chromeec_calc_checksum(const uint8_t *data, int size); u16 google_chromeec_get_board_version(void); u32 google_chromeec_get_events_b(void); |