diff options
| author | Bhanu Prakash Maiya <bhanumaiya@google.com> | 2020-08-12 13:04:27 -0700 |
|---|---|---|
| committer | Aaron Durbin <adurbin@chromium.org> | 2020-08-13 22:59:28 +0000 |
| commit | a8e24f648ff1c7e7103c06f5a2c0ec048ae7d9f5 (patch) | |
| tree | 1a00e5c8524dca3f1e6eba76cd2a4d96fc52e61a /src | |
| parent | f852137c810044491eb216d70a18ae0fcb298a8b (diff) | |
mb/google/zork: Add helper function to read DB ID bits in FW_CONFIG
Add helper function variant_get_daughterboard_id() to read
daughterboard id bits (0-3) in firmware configuration table in CBI.
BRANCH=none
BUG=b:162344105,b:152817444
TEST=Check if daughterboard id bits (0-3) can be read from FW_CONFIG.
Signed-off-by: Bhanu Prakash Maiya <bhanumaiya@google.com>
Change-Id: Ia3c882439bfbe6da28be2df0ec0c976d5c142677
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44424
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src')
| -rw-r--r-- | src/mainboard/google/zork/variants/baseboard/helpers.c | 5 | ||||
| -rw-r--r-- | src/mainboard/google/zork/variants/baseboard/include/baseboard/variants.h | 2 |
2 files changed, 7 insertions, 0 deletions
diff --git a/src/mainboard/google/zork/variants/baseboard/helpers.c b/src/mainboard/google/zork/variants/baseboard/helpers.c index 3f2b0688c7..d95ab823f6 100644 --- a/src/mainboard/google/zork/variants/baseboard/helpers.c +++ b/src/mainboard/google/zork/variants/baseboard/helpers.c @@ -144,3 +144,8 @@ bool variant_has_active_low_wifi_power(void) return true; } + +int variant_get_daughterboard_id(void) +{ + return extract_field(FW_CONFIG_MASK_DB_INDEX, FW_CONFIG_DB_INDEX_SHIFT); +} diff --git a/src/mainboard/google/zork/variants/baseboard/include/baseboard/variants.h b/src/mainboard/google/zork/variants/baseboard/include/baseboard/variants.h index 98ba56530a..bedcb0dd08 100644 --- a/src/mainboard/google/zork/variants/baseboard/include/baseboard/variants.h +++ b/src/mainboard/google/zork/variants/baseboard/include/baseboard/variants.h @@ -72,5 +72,7 @@ bool variant_uses_v3_6_schematics(void); bool variant_uses_codec_gpi(void); /* Return true if variant has active low power enable fow WiFi. */ bool variant_has_active_low_wifi_power(void); +/* Return value of daughterboard ID */ +int variant_get_daughterboard_id(void); #endif /* __BASEBOARD_VARIANTS_H__ */ |