diff options
| author | Hung-Te Lin <hungte@chromium.org> | 2013-04-15 18:27:24 +0800 |
|---|---|---|
| committer | Ronald G. Minnich <rminnich@gmail.com> | 2013-04-16 00:32:49 +0200 |
| commit | 6bfbb33a64f95bcfdf46f8a35c342177886bb594 (patch) | |
| tree | fde12a80d851f1caac9e1ca3515a566a7c310abb /src/ec/google/chromeec/ec.h | |
| parent | 07e0f1bf1a2781102e6f6a242a7a97944b0f3ba0 (diff) | |
ec/google: Support Google's Chrome EC on I2C interface.
Google's Chrome EC can be installed on LPC or I2C bus, using different command
protocol. This commit adds I2C support for devices like Google/Snow.
Note: I2C interface cannot be automatically probed so the bus and chip number
must be explicitly set.
Verified by booting Google/Snow, with following console output:
Google Chrome EC: Hello got back 11223344 status (0)
Google Chrome EC: version:
ro: snow_v1.3.108-30f8374
rw: snow_v1.3.128-e35f60e
running image: 1
Change-Id: I8023eb96cf477755d277fd7991bdb7d9392f10f7
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: http://review.coreboot.org/3074
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Diffstat (limited to 'src/ec/google/chromeec/ec.h')
| -rw-r--r-- | src/ec/google/chromeec/ec.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/ec/google/chromeec/ec.h b/src/ec/google/chromeec/ec.h index c78560f973..a4c196056f 100644 --- a/src/ec/google/chromeec/ec.h +++ b/src/ec/google/chromeec/ec.h @@ -32,6 +32,7 @@ int google_ec_running_ro(void); u16 google_chromeec_get_board_version(void); #endif +uint8_t google_chromeec_calc_checksum(const uint8_t *data, int size); u32 google_chromeec_get_events_b(void); int google_chromeec_kbbacklight(int percent); void google_chromeec_post(u8 postcode); |